Station Overview Station Location
Station Number CO-SU-6 Latitude 39.6239
Station Name Silverthorne 2.1 WSW Longitude -106.1018
County Summit Elevation (ft) 9684



Month 30 Yr Avg by PRISM Total Prcp Sum Days Covered By All Observations Daily Prcp Sum Daily Observation Count Multiday Prcp Sum Days Covered by Multiday Observations Multiday Observation Count Days With Prcp Days With Trace Total Snowfall Days With Snowfall Days With Snow On Ground
Oct 17 1.36 0.00 31 0.00 0 0.00 31 0 0 0 0.0 0 0
Nov 17 1.60 3.65 30 0.00 2 3.65 28 1 0 0 0.0 0 2
Dec 17 2.03 1.53 31 1.53 31 0.00 0 0 11 3 26.4 11 31
Jan 18 1.36 2.19 30 2.19 30 0.00 0 0 11 3 32.4 11 30
Feb 18 1.39 3.34 24 3.34 24 0.00 0 0 17 3 50.1 17 24
March 18 2.17 2.11 29 2.11 29 0.00 0 0 14 3 28.1 13 28
April 18 2.00 3.52 15 3.52 15 0.00 0 0 11 1 39.3 11 15
May 18 1.81 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
June 18 1.35 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
July 18 1.74 1.03 25 1.03 25 0.00 0 0 13 5 0.0 0 0
Aug 18 2.23 1.32 30 1.32 30 0.00 0 0 11 1 0.0 0 0
Sept 18 1.58 0.12 2 0.12 2 0.00 0 0 2 0 0.0 0 0
Water Year Totals: 20.62" 18.81" 247 days 15.16" 188 3.65" 59 days 1 90 days 19 days 176.3" 63 days 130 days



Days in Water Year Cell Color Key
        Daily Observation with Prcp         Missing Day
        Multiday Observation         Daily/Multiday Observation Conflict

Day of Year Daily Prcp Multiday Prcp
10/1/2017 **
10/2/2017 **
10/3/2017 **
10/4/2017 **
10/5/2017 **
10/6/2017 **
10/7/2017 **
10/8/2017 **
10/9/2017 **
10/10/2017 **
10/11/2017 **
10/12/2017 **
10/13/2017 **
10/14/2017 **
10/15/2017 **
10/16/2017 **
10/17/2017 **
10/18/2017 **
10/19/2017 **
10/20/2017 **
10/21/2017 **
10/22/2017 **
10/23/2017 **
10/24/2017 **
10/25/2017 **
10/26/2017 **
10/27/2017 **
10/28/2017 **
10/29/2017 **
10/30/2017 **
10/31/2017 **
11/1/2017 **
11/2/2017 **
11/3/2017 **
11/4/2017 **
11/5/2017 **
11/6/2017 **
11/7/2017 **
11/8/2017 **
11/9/2017 **
11/10/2017 **
11/11/2017 **
11/12/2017 **
11/13/2017 **
11/14/2017 **
11/15/2017 **
11/16/2017 **
11/17/2017 **
11/18/2017 **
11/19/2017 **
11/20/2017 **
11/21/2017 **
11/22/2017 **
11/23/2017 **
11/24/2017 **
11/25/2017 **
11/26/2017 **
11/27/2017 **
11/28/2017 3.65
11/29/2017 0.00
11/30/2017 0.00
12/1/2017 T
12/2/2017 T
12/3/2017 0.00
12/4/2017 0.17
12/5/2017 0.02
12/6/2017 T
12/7/2017 0.02
12/8/2017 0.07
12/9/2017 0.00
12/10/2017 0.00
12/11/2017 0.00
12/12/2017 0.00
12/13/2017 0.00
12/14/2017 0.14
12/15/2017 0.00
12/16/2017 0.00
12/17/2017 0.00
12/18/2017 0.00
12/19/2017 0.00
12/20/2017 0.00
12/21/2017 0.02
12/22/2017 0.11
12/23/2017 0.09
12/24/2017 0.29
12/25/2017 0.40
12/26/2017 0.20
12/27/2017 0.00
12/28/2017 0.00
12/29/2017 0.00
12/30/2017 0.00
12/31/2017 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2018 0.00
1/2/2018 T
1/3/2018 0.00
1/4/2018 0.00
1/5/2018 0.00
1/6/2018 0.00
1/7/2018 0.43
1/8/2018 0.00
1/9/2018 0.02
1/10/2018 0.00
1/11/2018 0.30
1/12/2018 0.24
1/13/2018 0.11
1/14/2018 0.02
1/15/2018 0.00
1/16/2018 T
1/17/2018 0.00
1/18/2018 0.00
1/19/2018 0.00
1/20/2018 0.00
1/21/2018 0.15
1/22/2018 0.67
1/23/2018 0.01
1/24/2018 0.00
1/25/2018 0.00
1/26/2018 0.22
1/27/2018 0.02
1/28/2018 T
1/29/2018 0.00
1/30/2018 0.00
1/31/2018
2/1/2018 0.15
2/2/2018
2/3/2018 0.08
2/4/2018 0.12
2/5/2018 0.22
2/6/2018 1.15
2/7/2018 0.05
2/8/2018 0.00
2/9/2018 0.00
2/10/2018 0.27
2/11/2018 0.48
2/12/2018 0.00
2/13/2018 0.05
2/14/2018 T
2/15/2018 0.07
2/16/2018 0.32
2/17/2018 T
2/18/2018 T
2/19/2018 0.00
2/20/2018 0.14
2/21/2018 0.02
2/22/2018 0.01
2/23/2018 0.01
2/24/2018 0.15
2/25/2018 0.05
2/26/2018
2/27/2018
2/28/2018
3/1/2018
3/2/2018 0.00
3/3/2018 0.00
3/4/2018 0.00
3/5/2018 0.12
3/6/2018 0.18
3/7/2018 0.00
3/8/2018 0.00
3/9/2018 0.00
3/10/2018 0.12
3/11/2018 0.08
3/12/2018 0.00
3/13/2018 T
3/14/2018 0.00
3/15/2018
3/16/2018 0.20
3/17/2018 0.00
3/18/2018 0.00
3/19/2018 0.21
3/20/2018 0.24
3/21/2018 0.03
3/22/2018 T
3/23/2018 0.03
3/24/2018 0.47
3/25/2018 0.00
3/26/2018 T
3/27/2018 0.02
3/28/2018 0.01
3/29/2018 0.37
3/30/2018 0.03
3/31/2018 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2018 0.08
4/2/2018 0.00
4/3/2018 0.20
4/4/2018 0.00
4/5/2018 0.02
4/6/2018 0.09
4/7/2018 1.14
4/8/2018 1.16
4/9/2018 0.51
4/10/2018 0.10
4/11/2018
4/12/2018 0.00
4/13/2018 0.13
4/14/2018 0.07
4/15/2018 0.02
4/16/2018 T
4/17/2018
4/18/2018
4/19/2018
4/20/2018
4/21/2018
4/22/2018
4/23/2018
4/24/2018
4/25/2018
4/26/2018
4/27/2018
4/28/2018
4/29/2018
4/30/2018
5/1/2018
5/2/2018
5/3/2018
5/4/2018
5/5/2018
5/6/2018
5/7/2018
5/8/2018
5/9/2018
5/10/2018
5/11/2018
5/12/2018
5/13/2018
5/14/2018
5/15/2018
5/16/2018
5/17/2018
5/18/2018
5/19/2018
5/20/2018
5/21/2018
5/22/2018
5/23/2018
5/24/2018
5/25/2018
5/26/2018
5/27/2018
5/28/2018
5/29/2018
5/30/2018
5/31/2018
6/1/2018
6/2/2018
6/3/2018
6/4/2018
6/5/2018
6/6/2018
6/7/2018
6/8/2018
6/9/2018
6/10/2018
6/11/2018
6/12/2018
6/13/2018
6/14/2018
6/15/2018
6/16/2018
6/17/2018
6/18/2018
6/19/2018
6/20/2018
6/21/2018
6/22/2018
6/23/2018
6/24/2018
6/25/2018
6/26/2018
6/27/2018
6/28/2018
6/29/2018
6/30/2018
Day of YearDaily PrcpMultiday Prcp
7/1/2018
7/2/2018
7/3/2018
7/4/2018 T
7/5/2018 T
7/6/2018 T
7/7/2018 0.00
7/8/2018 0.00
7/9/2018 0.16
7/10/2018
7/11/2018
7/12/2018
7/13/2018 0.01
7/14/2018 0.00
7/15/2018 T
7/16/2018 0.15
7/17/2018 0.01
7/18/2018 0.11
7/19/2018 0.00
7/20/2018 0.00
7/21/2018 0.10
7/22/2018 0.01
7/23/2018 0.11
7/24/2018 0.08
7/25/2018 T
7/26/2018 0.01
7/27/2018 0.00
7/28/2018 0.18
7/29/2018 0.03
7/30/2018 0.07
7/31/2018 0.00
8/1/2018 0.00
8/2/2018 0.00
8/3/2018 0.00
8/4/2018 0.26
8/5/2018 0.19
8/6/2018 0.06
8/7/2018 0.00
8/8/2018 0.00
8/9/2018 0.00
8/10/2018 0.00
8/11/2018 0.00
8/12/2018 0.00
8/13/2018 0.00
8/14/2018 0.00
8/15/2018 T
8/16/2018 0.00
8/17/2018 0.06
8/18/2018 0.16
8/19/2018 0.12
8/20/2018 0.00
8/21/2018 0.02
8/22/2018 0.25
8/23/2018 0.10
8/24/2018 0.03
8/25/2018 0.00
8/26/2018 0.00
8/27/2018 0.07
8/28/2018 0.00
8/29/2018 0.00
8/30/2018 0.00
8/31/2018
9/1/2018 0.11
9/2/2018
9/3/2018 0.01
9/4/2018
9/5/2018
9/6/2018
9/7/2018
9/8/2018
9/9/2018
9/10/2018
9/11/2018
9/12/2018
9/13/2018
9/14/2018
9/15/2018
9/16/2018
9/17/2018
9/18/2018
9/19/2018
9/20/2018
9/21/2018
9/22/2018
9/23/2018
9/24/2018
9/25/2018
9/26/2018
9/27/2018
9/28/2018
9/29/2018
9/30/2018



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
11/29/2017 8:00 AM 0.00 0.0 M 2.0 M 1129170800 Cs SCT v BKN 20+ mi 38 32% RH WSW 6 + 23 kt Tmxmn 44 24ºF 60-70% cover max depth 6 inches
11/30/2017 7:30 AM 0.00 0.0 M 2.0 M 1130170730 CLR 20+MI 29 56% RH CALM + NW 35 KT TMXMN 43 24)F Cs SCT v BKN all day WINDY Depth 2 inches 60% Cover S facing bare
12/1/2017 7:00 AM T T M 2.0 M 1201170850 Ns SW— 10 mi 40 51% RH WNW 5+24 kt Tmxmn 46 20ºF T SW—BGN 0830-0850 Depth 2.0 60% cover Ac SCT Windy all day
12/2/2017 8:00 AM T T M 2.0 M 1202170800 Sc Ac BKN 20+mi 37 57% RH WSW 7+35 kt Tmxmn 42 38 HIGH WINDS LARGE ET 55% 2 IN T FROM SW— PASSING AM
12/3/2017 8:00 AM 0.00 0.0 M 2.0 M 1203170800 Cs BKN 20 mi 29 55% Calm + W 35 kt Tmxmn 46 27ºF Cs Ac SCT v BKN all day WINDY 55% cover Depth 0-4 avg 2 inches
12/4/2017 8:00 AM 0.17 2.3 M 3.4 M 1204170800 Ns SW- SCT 5 mi 10 72% RH Nw 4+25 kt Tmxmn 47 10ºF New 2.3 SWE 0.17 Depth 3.4 (2-5) inches
12/5/2017 8:55 AM 0.02 0.6 M 3.9 M 1205170855 Cu Fc SCT 20+mi 15 70% RH Calm + NW 25 KT TMXMN 26 4ºF SBGN— 1800 - 0300 NEW 0.6 SW 0.02 DEPTH 3.9 (3-5.5) inches Very dry light S
12/6/2017 8:30 AM T T M 3.4 M 1206170830 Sc SW - - 10 mi 6 89% Calm + NE 8 kt Tmxmn 28 0ºF COLD DRY day New T SWE T Depth 3.4 (2-5) inches
12/7/2017 8:00 AM 0.02 0.4 M 3.1 M 1207170800 Sc SCT SW- 5mi 79% RH NE 2+16 kt Tmxmn 17 4 ºF Sc SW - - All Day 5-10 mi VSBY NEW 0.4 SWE 0.02 Depth 3.1 (2-4.5) inches
12/8/2017 8:55 AM 0.07 1.7 M 5.0 M 1208170855 Ac SCT 20+mi 23 73% RH Calm + N 11 kt Tmxmn 13 1ºF Very COLD Snow Shower Day New 1.7 SWE 0.07 Depth 5.0 (4-7) inches very dry fluffy 1-3 mm stellar dendrites S- BGN 1700-0400 fine crystals
12/9/2017 8:00 AM 0.00 0.0 M 3.6 M 1209170800 AcL SCT 20+mi 10 65% CALM + N 10 KT Tmxmn 32 12ºC AcL SCT all day CLR PM N Flow Depth 3.6 (2-6) inches
12/10/2017 7:00 AM 0.00 0.0 M 2.6 M 1210170700 Ac SCT 20+ mi 7 67% RH Calm + N 9 kt Tmxmn 37 6ºF AcL SCT Standing Wave CLDS all day Depth 0-6 avg 2.6 90% COVER Melting fast
12/11/2017 7:00 AM 0.00 0.0 M 2.4 M 1211170700 CLR 20+ 15 49% RH CALM + E 13 KT Tmxmn 38 7ºF CLR all day Depth 0-6 avg 2.4 inches 70% Cover
12/12/2017 7:00 AM 0.00 0.0 M 2.2 M 1212170700 CLR 20+ MIT 17 73% RH CALM + N 10 KT TMXMN 43 11ºF CLR ALL DAY Depth 2.2 (0-6) inches 60% cover
12/13/2017 8:00 AM 0.00 0.0 M 1.9 M 1213170800 As OVC 20 mi 29 37% Calm + NE 14 KT Tmcmn 43 15ºF Cs Ac SCT v BKN all day Depth 1.9 (0-5.5) inches 60% cover
12/14/2017 8:00 AM 0.14 1.7 M 4.0 M 1214170800 Ns SW- - 5 mi 18 88% RH N 1 + SW 10 kt Tmxmn 43 17ºF As OVC All Day SBGN 2230 S- V S New 1.7 SWE 0.14 Depth 4 (2-7) inches SW- - continue
12/15/2017 8:55 AM 0.00 0.0 M 3.7 M 1215170855 AcL SCT 20+mi 19 58% NW 3+12 kt Tmxmn 25 7ºF AcL Bin to SCT CLR Depth 3.7 (2-6.5) inches 95% cover
12/16/2017 7:00 AM 0.00 0.0 M 2.7 M 1215170700 As OVC 20+ mi 28 42% Calm + N 10 kt Tmxmn 39 3ºF AcL CLR All day Depth 2.7 (0-6) inches 80% Cover
12/17/2017 7:00 AM 0.00 0.0 M 2.5 M 1217170700 As OVC 20+ mi 13 70% Calm + SE 8 kt Tmxmn 42 23ºF Ac As OVC Sun Dim VIS Depth 2.5 (0-6) 70% Cover
12/18/2017 7:00 AM 0.00 0.0 M 2.3 M 1218170700 Cs BKN 20 mi H 11 70% Calm + W 17 kt tmxmn 33 11ºF As OVC AM CLR Few Cu PM Depth 2.3 (0-5.5) inches 70% Cover
12/19/2017 8:55 AM 0.00 0.0 M 2.3 M 1219170855 Cs BKN 20+ mi 27 66% Calm + N 8 kt Tmxmn 35 9ºF Cs Ac SCT v BKN all day Depth 2.3 (0-5.5) inches 60% cover
12/20/2017 8:00 AM 0.00 0.0 M 1.9 M 1220170800 Ac Cs SCT v BKN 20+ mi 32 35% RH W 4+15 kt Tmxmn 39 15ºF Cs CLR all day Depth 1.9 (0-5.5) inches 60% cover
12/21/2017 8:00 AM 0.02 0.4 M 2.4 M 1221170800 Ns S v S— 1-5 mi 21 90% RH E 4 + NE 24 kt Tmxmn 42 21ºF Cs Ac CLR All Day New 0.4 Depth 2.4 (0.4-6) inches SWE 0.02 inches
12/22/2017 7:00 AM 0.11 2.1 M 4.6 M 1222170700 St SCT CLR 20+ mi 4 85% Calm + E 13 kt Tmxmn 30 4ºF SW- AM SBGN 1400 - 2100 SWE 0.11 New 2.1 Depth 4.6 ( 2-8) inches large dendritic aggregates 3-10 mm
12/23/2017 8:00 AM 0.09 1.2 M 4.2 M 1223170800 Ns S- v S— F 1-3 mi 19 90% NE 1+W 29 kt Tmxmn 26 19ºF Few Cu AcL AM Cs As Ns SW- - - PM SBGN 0230 S- New 1.2 SWE 0.09 Depth 4.2 (3-8) inches BS- Very dry light snow
12/24/2017 8:00 AM 0.29 4.0 M 7.8 M 1224170800 CLR 8 85% 20+ mi WNW 12+ 33 kt Tmxmn 24 8ºF S BS ALL DAY Max 1700-2000 NEW 4.0 SWE 0.29 Depth 7.8 (5-11) inches Drifting Snowboards 2-6 inches
12/25/2017 8:55 AM 0.40 7.0 M 10.2 M 1225170858 Ns X S S+ BS+ 0.2 mi 24 95% RH W15+37 kt Tmxmn 23 5ºF SBGN 0230 max 0515-0830 Send 2100 New 7.0 SWE 0.40 Depth 10.2 (6-17) BS+ Drifting
12/26/2017 8:58 AM 0.20 5.0 M 12.6 M 1226170855 Ns SW- AcL 20+mi 22-27ºF S END 2100 New 5.0 SWE 0.20 Depth 12.6 (7-19) inches BS Drifting Snow Boards 8-14; 4-10; 0-10 inches
12/27/2017 8:00 AM 0.00 0.0 M 11.6 M 1227170800 Ac As SCT v BKN 20+ mi 25 42% RH WSW 4+31 kt AcL All DAY Depth 11.6 (7-18) inches Driftin
12/28/2017 8:00 AM 0.00 0.0 M 10.2 M 1228170800 Ac SCT 20+ mi 31 33% RH W 4 + 31 kt Tmxmn 35 21ºF Ac SCT v BKN all day Depth 10.2 (6-16) inches
12/29/2017 8:55 AM 0.00 0.0 M 9.4 M 122917085 Ac SCT v BKN AcL BS 20+mi 36 25% RH WNW 6+ 26 kt Tmxmn 39 26ºF Ac SCT CLR all day Depth 9.4 (5-15) inches Drifting
12/30/2017 8:00 AM 0.00 0.0 M 7.8 M 1230170800 AcL SCT BS+ 20+ mi 37 19% RH W 13+36 kt High Winds all night Depth 7.8 (3-14) inches Drifting BS 98% cover scouring
12/31/2017 8:00 AM 0.00 0.0 M 6.4 M 1231170800 As OVC 20+mi 21 74% RH NW 2+ 57 kt HIGHEST WIND RECORD AT MY STATIONS BS+ Drifting Ridge top Bare Depth 6.4 (2-13) inches 90% cover local dmage
1/1/2018 8:00 AM 0.00 0.0 M 6.4 M 0101180800 Cs OVC 20+MI 19 56% CALM + W 19 KT TMXMN 33 17ºF As OVC 0600-1100 Ac Cs Fc SCT PM Depth 6.4 (2-13) inches
1/2/2018 8:55 AM T T M 6.4 M 0102180855 CLR 20+ MI 19 41% RH CALM + W 16 kt Tmxmn 38 11ºF Ac Cs SCT v BKN SW- - 0230-0300 T new Depth 6.4 (2-13) inches 90% cover
1/3/2018 8:00 AM 0.00 0.0 M 6.2 M 0103180800 Cs SCT 20+ mi 15 34% RH CALM + SW 10 KT TMXMN 31 6ºF CLR ALL DAY DEPTH 6.2 (2-12.5) INCHES 90% cover
1/4/2018 8:00 AM 0.00 0.0 M 5.9 M 0104180800 CLR 20+ MI 24 23% RH CALM + W 11 kt Tmxmn 40 5ºF Cs SCT all day Depth 5.9 (2-12.5) inches 85% cover
1/5/2018 8:50 AM 0.00 0.0 M 5.3 M 0105180850 AcL Cs BKN 20+ mi 24 43% Calm + NE 9 kt Tmxmn 42 13ºF Cs SCT all day Depth 5.3 (1-11) inches
1/6/2018 8:00 AM 0.00 0.0 M 5.1 M 0106180800 Sc BKN As OVC 20+mi 33 62% RH Calm +W 11 Tmxmn 42 15ºF Cs AcL BKN v SCT Depth 5.1 (0-11) inches 75% cover
1/7/2018 8:55 AM 0.43 5.0 M 10.6 M 0107170855 Sc OVC SW- SCT 10 mi 23 90% NW 0+ 8 KT Tmxmn 33 22ºF SBGN 1800 SW- S+ 2040-2300 and 0230-0310 SWE 0.43, New 4-6 inches avg 5.0 Snow Boards 1-6; 2-4, 4 Depth 10.6 (6-17) inches
1/8/2018 8:00 AM 0.00 0.0 M 10.4 M 0108170800 As BKN Cs OVC 20+mi 19 77% Calm + N 9 kt tmxmn 33 19ºF Sc SW- - AM Ac Sc PM Depth 10.4 (6-17) inches Melting of wet snow yesterday PM
1/9/2018 8:50 AM 0.02 0.2 M 8.6 M 0109180850 Sc SCT 20+ mi 38 68% RH W 3+24 kt Tmxmn 51 15ºF SW- 0030-0130 New 0.2 QPE 0.02 WET flakes Depth 8.6 (4-15) inches T 0500 33 rose at 0630 to 38ºF
1/10/2018 8:00 AM 0.00 0.0 M 6.8 M 0110180800 Sc BKN As OVC 20+mi 31 73% SW 2+W 24 kt Tmxmn 46 32 Melting all day Depth 6.8 (0-14) 90% cover Ac SCT v BKN all day FEW SW- - -
1/11/2018 8:30 AM 0.30 4.1 M 11.2 M 0111180830 Ns SW- 1 mi 14 84% Nw 1+ W 20 kt Tmxmn 37 10ºF SBGN 1400 S+ 1500-1630 SW- all night New 4.1 SWE 0.30 Depth 11.2 (5-19) inches Hvy wet aggregates 5-10 mm 1400-1700 then fine dendritic 1-3 mm
1/12/2018 8:55 AM 0.24 6.1 M 15.4 M 0112180855 Ns S S+ X .2 mi 21 90% RH NW 2+14 kt Tmxmn 23 10ºF SBGN 0145 max 0630-0730 New 6.1 SWE 0.24 Depth 15.4 (9-22) inches Large dendritic aggregates 4-11 mm
1/13/2018 8:00 AM 0.11 1.8 M 15.0 M 0113180800 Ns BKN SW- - 5 mi 21 85% RH Calm + W 21 kt Tmxmn 27 19 Ns SW- SCT all day New 1.8 SWE 0.11 Depth 15.0 (9-23) inches Dendritic aggregates 3-8 mm
1/14/2018 8:30 AM 0.02 0.2 M 13.9 M 0114180830 AcL SCT 20+ mi 24 72% RH Calm + NW +17 kt Tmxmn 28 15ºF SCT SW- - all day New 0.2 SWE 0.02 Depth 13.9 (8-21) inches
1/15/2018 8:00 AM 0.00 0.0 M 12.0 M 0115180800 Sc AcL Ns SCT SW- 15 mi 24 67% RH NNE 3+NW 11 kt Tmxmn 38 14ºF Sc SCT v BKN CLR Depth 12.0 (6-19) inches
1/16/2018 8:50 AM T T M 11.4 M 0116180850 Cs SCT 20+mi 10 43% RH Calm + E 17 kt Tmxmn 26 -6ºF SCT SW- - AM Sc Ac BKN vSCT CLR pm T New Depth 11.4 (5-18) inches
1/17/2018 8:00 AM 0.00 0.0 M 11.4 M 0117180800 CLR 20+MI 7 46% CALM + N 8 kt Tmxmn 32 -6ºF Cs SCT CLR Depth 11.4 (5-18) inches
1/18/2018 8:00 AM 0.00 0.0 M 11.2 M 0118170800 Cs OVC 20+mi 13 62% RH Calm + N 9 kt Tmxmn 36 5ºF Cs SCT CLR all day Depth 11.2 (5-18) inches
1/19/2018 7:00 AM 0.00 0.0 M 10.3 M 0119180700 As Cs BKN v OVC 20+mi 34 45% NE 3+8 kt Tmxmn 43 9ºF Cs SCT CLR Depth 10.3 (3-17.5 inches melting and runoff
1/20/2018 8:00 AM 0.00 0.0 M 10.0 M 0120180800 AcL Cs BKN 20+mi 31 54% RH NW 5 + W 24 kt Tmxmn 47 26ºF Ac Cs SCT v BKN all day Depth 10.0 (2-17) inches 95% cover S Facing slope opening up
1/21/2018 8:50 AM 0.15 4.0 M 14.0 M 0121180850 Ns S S+ 0.5 mi 21 88% N 2 + 20 kt Tmxmn 46 21ºF Ns S BGN 0010 Max 0700 - 0830 NEW 4.0 SWE 0.15 Depth 14.0
1/22/2018 8:00 AM 0.67 6.8 M 19.2 M 0122180800 Ns SW- - CLR 20 mi 3 79%RH Calm + W 24 kt Tmxmn 24 1ºF Ns S S+ all day new 6 SWE 0.77 Depth 20+ S End 0730 Max 0845-1200 New 6.8 SWE 0.67 Depth 19.2 (11-27) inches
1/23/2018 8:55 AM 0.01 0.2 M 17.2 M 0123180855 Ns SW-SCT 10 mi 15 70% NW 2+8 kt Tmxmn 23 1ºF Sc SCT CLR all day new 0.2 SWE 0.01 Depth 17.2 (10-24) inches SW - - 2200-0800
1/24/2018 8:00 AM 0.00 0.0 M 16.6 M 0124180800 Ac Cs SCT 20+mi 15 59% Calm + SW 11 kt Tmxmn 26 7ºF Ns SW— AM CLR all day Depth 16.6 (9-23) inches
1/25/2018 8:00 AM 0.00 0.0 M 15.4 M 0125180800 Cs BKN 20+ mi 26 37% SW 2 + NW 3+23 kt Tmxmn 37 4ºF Ac Cs SCT AM CLR few Cs PM Depth 15.4 (8-22) inches BS BS+ 1300-1700 Drifting
1/26/2018 8:55 AM 0.22 3.5 M 18.2 M 0126180855 Ns X S- F 0.5 mi 12 85% RH Calm + W 25 kt Tmxmn 43 11ºF SBGN 0115 S- v S New 3.5 SWE 0.22 Depth 18.2 (10-26) inches
1/27/2018 7:00 AM 0.02 0.5 M 17.4 M 0127180700 Ac SCT 20+ 1 78% RH Calm + N 12 kt Tmxmn 26 1ºF Ns S- AM SW- PM new 0.5 SWE 0.02 Depth 17.4 (9-25) inches
1/28/2018 7:00 AM T T M 16.4 M 0128180700 Sc SCT SW- 15mi 19 65% RH NW 3 + W 25 kt Tmxmn 27 1ºF Sc Ns OROG SW- all day; BS BS+ new T SWE T Depth 16.4 (8-24) inches
1/29/2018 7:00 AM 0.00 0.0 M 15.8 M 0129180700 AcL Cs BKN 20+mi 18 83% RH Calm + NW 18 KT Tmxmn 34 16ºF SCT SW- - AM CLR Depth 15.8 (8-23) inches
1/30/2018 8:50 AM 0.00 0.0 M 15.0 M 0130180850 AcL Cs BKN 20+mi 36 28% RH W 6+21 kt Tmxmn 40 17ºF AcL Cs All day Depth 15.0 (7-23) inches
2/1/2018 8:55 AM 0.15 2.0 M 15.0 M 020118 0855 Ns S BS+ New 2.0 SWE 0.15 Depth 15 inches WNW 10+36 kt
2/3/2018 8:00 AM 0.08 3.0 M 15.0 M 0131 to 0203118 020118 Ns X S S- AM 0600-1200 max 0830-0950 SWE new 0.14 , 3 inches 020318: S- Sp 0520-0800 new 2 inches SP SWE New; 0.08 WET SNOW TOTAL 3 SWE 0.22 DEPTH 15 (7-22) INCHES
2/4/2018 8:00 AM 0.12 2.0 M 15.4 M 0204180800 Ns BKN SW- - SP- 4 mi 28 73% RH W 5+22 kt Tmxmn 36 26ºF Ns SW- BS BS+ ALL DAY SW- SW; New 2.0 SWE 0.12 Depth 15.4 (7-22) inches; Drifting SnowBoards 0-4.5 inches Avg 2.0; Precip gauge 2 inches deep SP -
2/5/2018 7:30 AM 0.22 6.0 M 20.4 M 0205180730 Ns S-v S SP 1 mi 28 91% WNW 5+29 kt Tmxmn 40 28ºF Ns Bands of SW All Day SP- BS BS+ all night NEW 6.0 SWE 0.23 Depth 20.4 (13-28) inches Snow Boards 1-8.5; 3-7.8, compact Heavy Snow BGN 0745 Large dendritic aggregates 5-10 mm VSBY 0.1 mi
2/6/2018 6:45 AM 1.15 16.0 M 31.4 M 0206180645 Ns S- - 1 mi 19 87% Calm + NW 29 kt Tmxmn 31 19ºF S v S+ All Day New 16.0 (13.5-18) SWE 1.15 Depth 31.4 (24-39) inches Calm during most of storm Snow Boards 13.5-18.5 inches
2/7/2018 7:00 AM 0.05 1.0 M 29.4 M 0207180700 Ns SW- - 5 mi 12 90% RH Calm + N 11 kt Tmxmn 28 12 S- v SW All Day New 1.0 SWE 0.05 Depth 29.6 (22-37) inches
2/8/2018 7:00 AM 0.00 0.0 M 26.4 M 0208180700 Sc SCT As OVC 20+mi 17 85% NW 1+21 kt Tmxmn 33 12ºF Sc AcL Orog on ridge tops SCT v BKN Depth 26.4 (20-33) melt + compaction wet heavy snow
2/9/2018 8:50 AM 0.00 0.0 M 24.8 M 0209180850 Sc As BKN Cs OVC 20+mi 33 57% RH W 3+20 kt Tmxmn 38 16ºF Sc As BKN v OVC all day Depth 24.8 (19-31) inches
2/10/2018 8:00 AM 0.27 3.5 M 27.4 M 0210180800 Ns X S S+ 0.2 mi 24 88% RH Calm + SE 40 kt Tmxmn 40 24ºF Sc BKN SCT SW- New 3.5 SWE 0.27 Depth 27.4 (21-33) inches Boards 3.0-4.2 inches
2/11/2018 7:00 AM 0.48 4.6 M 27.2 M 0211180700 CLR 20+ MI 1º 80% RH Calm + W 27 kt Tmxmn 30 0ºF S-vS+ AM SW- S- PM Stellar Dentritic crystals 1-5 mm New 4.5 SWE 0.48 Depth 27.2 (21-34) inches Drifting snow boards 3.5 to 6 inches
2/12/2018 7:00 AM 0.00 0.0 M 25.8 M 0212180700 As OVC 20+ mi 19 63% SW 1+ W 12 kt tmxmn 31 -1ºF CLR AM Cs SCT v BKN PM Depth 25.8 (19-33) inches
2/13/2018 8:55 AM 0.05 0.5 M 24.8 M 0213180855 Sc Ac SW— 20+ 25 58% RH WNW 3+ SE 14kt Tmxmn 36 14ºF As OVC Ns sät v BKN SW- - SBGN 1900 SW- New 0.5 SWE 0.05 Depth 24.8 (18-32) inches
2/14/2018 7:00 AM T T M 24.0 M 0214180700 Ns SW- - 5 mi 29 76% RH Calm + SW 25 kt Tmxmn 36 15ºF Sc SW- - AM Ac SCT v BKN New T SWE T Depth 24.0 (17-31) inches
2/15/2018 8:00 AM 0.07 1.0 M 24.6 M 0215180800 Ns SW- S— 2 mi 24 74% RH W 6+ NW 23 kt Tmxmn 38 24ºF As OVC all day SBGN 0020 SW- - S- BS Drifting; New1.0 SWE 0.07 Depth 24.6 (17-32) inches Snowboards 3-8 Wind crust Top 0.4-1.5 inches
2/16/2018 7:00 AM 0.32 4.0 M 28.0 M 0216180700 CLR 20+MI -2 83% RH CALM + NW 23 KT TMXMN 27 -2ºF Ns SW- S- v S+ all Day max 1100-1120 1800-2000 New 4.0 SWE 0.32 Depth 28.0 (20-35) INCHES
2/17/2018 7:00 AM T T M 25.4 M 0217180700 Sc SCT SW- SCT 15 mi 18 67% WNW 10+34 kt Tmxmn 33 18ºF CLR AM Cs Sct v BKN PM New T SWE T, Depth 25.4 (19-33) inches BS Drifting
2/18/2018 8:00 AM T T M 23.6 M 0218170800 AcL SCT BS 20+ mi 34 28% RH W 11+34 kt Tmxmn 35 17 Sc AcL AM SCT SW- - - CLR Fc PM T new Depth 23.6 (17-31) inches BS Drifting
2/19/2018 8:00 AM 0.00 0.0 M 22.8 M 0219180800 Sc BKN As BKN Cs OVC SCT SW 10 MI 30 48% RH SE 14 + 31 KT Tmxmn 44 30ºF BS DRIFTING CLR ACL SCT ALL DAY DEPTH 22.8 (16-30) inches BS Drifting Sublimation Snowboard 1 has 2-3 inch drifted snow with 1 inch crust; board 2 clear and wxstn deck clear. Snow surface has a hard crust from blowing and melting.
2/20/2018 8:50 AM 0.14 2.2 M 23.4 M 0220180850 Ns SW- S- - F 2 mi 5 80% RH N 3+SE 31 kt Tmxmn 33 2ºF Sc As Cs SCT SW- - all day BS Drifting SBGN 1630 S— S- max 1830-1900 S+ New 2.2 SWE 0.14 Depth 23.4 (16-31) inches Snow board 1: 4-7 inches; Board 2: 1-3; Wxstn deck 1.5 Snow surface hard pack wind pack
2/21/2018 7:00 AM 0.02 0.5 M 23.8 M 0221180700 CLR 20+ MI -8 74% RH CALM + W 23 KT TMXMN 15 -11ºF AM Ns IF SW- - SUN dim visible ALL DAY 1700 Clearing CLR NEW 0.5 SWE 0.02 Depth 23.8 (16-32) inches
2/22/2018 7:00 AM 0.01 0.2 M 23.4 M 0222180700 Ns S- - F 2 mi 7 84% Calm + N 13 kt Tmxmn 25 7ºF CLR Cs SCT v OVC PM SBGN 0200 S- - v S- New 0.2 SWE 0.01 Depth 23.4 (16-31) inches very light small plates 1-3 mm
2/23/2018 7:00 AM 0.01 0.1 M 23.8 M 0223180700 As SCT 20+ mi 5 76% Calm+W 15 kt Tmxmn 22 5ºF Ns S- - AM Ac BKN SunDimVIS SW- - - PM New 0.1 SWE 0.01 Depth 23.8 (16-32) inches drifting
2/24/2018 7:00 AM 0.15 2.5 M 25.6 M 0224180700 Ns S-F SUNDIM VIS 1 mi 3 83% RH Calm + W 18 kt Tmxmn 26 3ºF S- - BGN 2000 S- S 0430 AM CLR Ac SCT Sc SW- SCT 1500-1800 New 2.5, SWE 0.15 Depth 25.6 (18-33) inches snow boards 4-7; 2.2-5; 2-2.5 inches Drifting
2/25/2018 7:00 AM 0.05 1.0 M 25.8 M 0225180700 Ns S- - F 0.8 mi 5º 77% RH calm + W 37 kt Tmxmn 15 2ºF AM CLR Ac BS+ Ns SW- - BGN 2100 NEW 1.0 SWE 0.05 DEPTH: 25.8 (18-34) inches DRIFTING snow boards 4-9; 2-5; 1-2 Belfort with alter shield 0.20 SWE inches
3/2/2018 7:00 AM 0.00 0.0 M 23.0 M 0302180700 CLR 20+ MI 29 42% W 6+28 KT TMXMN 44 9ºF AcL SCT v BKN 1700 Ac Ns SCT SW- - VIRGA Depth 23.0 (16-30) INCHES
3/3/2018 7:00 AM 0.00 0.0 M 21.6 M 0303180700 CLR 20+ MI 33 25% WSW 9+24 kt Tmxmn 48 23ºF CLR AcL Depth 21.6 (15-28) WINDY melt + sublimation
3/4/2018 8:30 AM 0.00 0.0 M 20.0 M 0304180830 CLR 20+ MI 37 20% WSW 8+25 KT Tmxmn 50 31ºF CLR Sct Ac Cs WINDY Depth 20.0 (14-26) inches Rapid Melt and Sublimation
3/5/2018 8:00 AM 0.12 2.5 M 22.0 M 0305180800 Ns S- - F BS+ 1 mi 6 72% RH W 6+28 kt Tmxmn 42 9ºF SBGN 1430 SW- SW S- all night BS Drifting NEW 2.5 SWWE 0.12 Depth 22 (15-29) inches fine dendritic crystals 1-2 mm Snowboards: 2-3.3; 1-2; 1.8-2.5 inches drifting BS
3/6/2018 8:50 AM 0.18 3.5 M 23.8 M 0306180850 Fc CLR 20+ mi 13 65% RH CALM + N 4+27 kt Tmxmn 15 3ºF Ns SW AM SW- - BS Drifting0700-1700; SBGN 1840-0600 S- S- - New 3.5 SWE 0.18 Depth 23.8(17-31) inches Snowboards 2.8-4.7; 2-2.5; 2-3.5 inches
3/7/2018 8:00 AM 0.00 0.0 M 22.2 M 0307180800 CLR 20+ MI 17 41% CALM + NE 11 KT TMXMN 32 2ºF CLR Cu Depth 22.2 (15-29) inches
3/8/2018 7:00 AM 0.00 0.0 M 21.4 M 0308180800 AcL SCT 20+ mi 24 32% RH W 1+15 kt Tmxmn 39 6ºF CLR Cu SCT all day Depth 21.4 (15-28) inches melting Sublimation
3/9/2018 8:55 AM 0.00 0.0 M 21.0 M 0309180855 AcL Cu Cs BKN 20+ mi 35 40% RH W 10 + 24 kt Tmxmn 42 16ºF AcL SCT v BKN all day Windy Depth 21.0 (15-27) inches Sublimation, Melting
3/10/2018 8:00 AM 0.12 1.8 M 22.0 M 0310180800 Ns SW- - 8 mi 25 82% WNW 5 + 24 KT Tmxmn 40 25ºF AcL Cs BKN ALL Day windy SBGN 2100 max 0210-0300 New 1.8 SWE 0.12 Depth 22.0 (16-28) inches
3/11/2018 8:00 AM 0.08 1.2 M 23.0 M 0311180800 Cs OVC 20+mi 8 84% RH Calm + W 11 kt Tmxmn 29 8ºF Ns SW- v SW— 0700-1600 MST Large dentritic aggregates dry snow New 1.2 SWE 0.08 Depth 23 (17-29) inches
3/12/2018 8:00 AM 0.00 0.0 M 20.8 M 0312180800 Sc BKN 20+mi 28 45% RH Calm + SE 7 kt Tmxmn 45 8ºF Cs BKN v OVC all day Melt and sublimation Depth 20.8 (15-26) inches
3/13/2018 8:50 AM T T M 20.2 M 0313180850 CLR 20+ mi 28 62% RH Calm + W 13 kt Tmxmn 40 19ºF Sc SCT v BKN SCT SW- - Depth 20.2 (15-26) inches Mellt Sublimation
3/14/2018 8:00 AM 0.00 0.0 M 18.8 M 0314180800 Cu Cs SCT 20+ mi 32 58% CALM + N 11KT Tmxmn 45 14ºF Cu SCT v BKN all day CLR PM Depth 18.8 (14-24) inches 95% Cover Rapid melt and sublimation
3/16/2018 8:50 AM 0.20 3.1 M 21.0 M 0316180850 Ns X S S+ BS .5mi 22 75% RH WNW 7+22 kt Tmxmn 43 22ºF Sc SCT v BKN SBGN 1730 S- SW S+ 0600-0800 New 3.1 SWE 0.20 Depth 21.0 (16-26) inches
3/17/2018 7:00 AM 0.00 0.0 M 18.8 M 0317180700 Ac SCT 20+ mi 19 67%RH Calm + W 31 kt Tmxmn 30 20ºF Sc BKN SCT SW- Depth 18.8 (14-23) inches
3/18/2018 8:40 AM 0.00 0.0 M 17.8 M 0318180840 CLR 20+ MI 28 43% RH CALM + W 15 KT Tmxmn 45 15ºF AcL Sc StC v BKN CLR Depth 17.8 (13-22) inches 90% cover
3/19/2018 7:00 AM 0.21 2.3 M 20.0 M 0319180800 15 88% RH CALM + NW 18 KT TMXMN 38 17ºF CLR Sc SCT v OVC Ns S- SBGN 1500 New 2.3 SWE 0.21 Depth 20 (15-25) inches
3/20/2018 8:00 AM 0.24 2.0 M 22.0 M 0320180800 Ns SW- S- 1 mi 25 88% RH W 2+10 kt Tmxmn 27 14º SW SCT All day New 2.0 SWE 0.24 Depth 22.0 inches
3/21/2018 7:00 AM 0.03 1.0 M 21.8 M 0321180700 Sc Ac BKN 20+ mi 26 59% RH W 2+ 13 kt Tmxmn 25 16ºF Ns SW- All day New 1.0 SWE 0.03 Depth 21.8 (18-26) INCHES
3/22/2018 7:00 AM T T M 17.8 M 0322180700 AcL 20+ mi 32 70% RH WNW 2 + 14 kt Tmxmn 43 21ºF Sc SW- SCT All day New T Depth 17.8 (14-22) 90% Cover Melting + Sublimation
3/23/2018 8:50 AM 0.03 T M 17.8 M 0323180850 Ns OVC SW- RW- 5 mi 35 85% RH W 2+ 27 KT Tmxmn 53 31ºF AcL SCT Ac Ns RW- - Rain 0.03 Depth 17.8 (13-21) inches Rapid Melt and sublimation
3/24/2018 8:00 AM 0.47 5.8 M 20.4 M 0324180800 CLR 20+ MI 18 82% RH CALM + SW 27 KT Tmxmn 44 18ºF Ns S S+ 0940-1130 max 1100-1140; Sc BKN Ns S+ S- 1800-0130 max 1810-1830 New 5.8 SWE 0.47 Depth 20.4 (16-25) inches 2 waves of S S+ First wave 2.5 inches Second 3.3 inches First band’s snow melted
3/25/2018 8:00 AM 0.00 0.0 M 16.4 M 0325180800 Fc Cs SCT 20+mi 33 41% RH W 1 + 15 kt Tmxmn 47 17ºF WARM Dry Melt + Sublimation 90% Cover Depth 16.4 (13-21) inches Rotton snow
3/26/2018 7:00 AM T T M 15.6 M 0326180700 Sc BKN 20+ mi 25 70% RH Calm + W 21 kt Tmxmn 47 25ºF Cs OVC v BKN Sc SW- - T NEW Depth 15.6 (11-20) inches 85% cover Melt and Sublimation
3/27/2018 8:50 AM 0.02 0.5 M 15.0 M 0327180850 Sc SCT v BKN 20+ mi 19 80% RH Calm + NW 19 KT TMXMN 42 18ºF SW- PM NEW 0.5 SWE 0.02 DEPTH 15.0 (10-19) INCHES 80% Cover
3/28/2018 7:00 AM 0.01 0.1 M 14.6 M 0328180700 Ns S- 0.5 mi 21 81% RH Clm + SE 9 kt Tmxmn 40 18ºF Sc SCT v BKN CLR PM New 0.1SWE 0.01 Depth 14.6 (9-19) inches Melting and Sublimation during day
3/29/2018 7:00 AM 0.37 3.6 M 18.4 M 0329180700 Ns S- F 17 85% Calm + W 15 kt Tmxmn 31 17ºF SW bands all day BGN 1130- max 1430-1730 New 3.6 SWE 0.37 Depth 18.4 (16-22) inches
3/30/2018 7:00 AM 0.03 0.7 M 17.8 M 0330180700 Sc SCT SW- - 20 mi 19 81% Calm + W 17 kt Tmxmn 29 14ºF Snow Squalls All DAY New 0.7, SWE 0.03 Depth 17.8 inches
3/31/2018 7:00 AM 0.00 0.0 M M M 0331180700 Sc Ac SCT v BKN 20 mi 30 45% RH W 2+20 kt Tmxmn 42 30ºF Sc SW- SCT 70% Cover
4/1/2018 7:15 AM 0.08 2.0 M 15.0 M 0401180700 Ns S+ 0.1 mi 29 90% RH Calm + N 24 kt SBGN 0600 S+ 0645-0715 S- 0715- New 2.0 SWE 0.08 Depth 15 (9-19) inches Sc Ns 08-18 As OVC 18-2200
4/2/2018 8:00 AM 0.00 0.0 M 11.2 M 0402180800 Fc Ac 20+mi 38 37% RH W 25+50+kt Tmxmn 50 29ºF HIGH WINDS Power out 0800 Depth 11.2 (4-15) inches 70% Cover RAPID melt and sublimation
4/3/2018 6:00 AM 0.20 4.0 M 14.2 M 0403180600 Ns S- 1 mi 8 85% RH NNW 3+W 37+ kt Tmxmn 51 8ºF POWER OUT 0800-1330 Wind damage new 4.0 SWE 0.20 Depth 14.2 (8-19) inches
4/4/2018 8:00 AM 0.00 0.0 M 9.8 M 0404180800 As Cs BKN 20+mi 30 22% RH WNW 2+ 19 kt Tmxmn 33 6ºF Cold windy Depth 9.8 (0-14) inches one of 5 snow poles DRY; Melting and Sublimation 65% COVER
4/5/2018 8:00 AM 0.02 0.2 M 9.4 M 0405180800 Cs BKN 20+ mi 24 78% RH W 2+24 KT Tmxmn 43 21ºF As Cs OVC all day SW- 2000-2130 New 0.2 SWE 0.02 Depth 9.4 (0.2 -14) inches
4/6/2018 8:55 AM 0.09 2.0 M 12.4 M 0406180855 Ns S v S+ 0.1 mi 31 92% RH S 1+N 20 kt Tmxmn 44 22ºF Warm wet snow New 2.0 SWE 0.09 Depth 12.4 (6-15) inches at 5 snow poles
4/7/2018 7:30 AM 1.14 12.5 M 22.0 M 0407180730 Ns S- F 0.5 mi 32 91% RH Calm + NW 8 kt Tmxmn 35 29ºF HEAVY WET SNOW S+ 0900-1100; 1530-2110 New 12.5 SWE 1.14 Depth 22 (12-26) inches Snow boards 11.3 to 13 inches
4/8/2018 8:00 AM 1.16 6.3 M 20.8 M 0408180800 Ns S- F 1 mi 30 92% RH Calm + W 14 kt Tmxmn 45 30 ºF POWER OUT 0430-1050 MDT R- 1600-2100 S- S+ 2100-0800 NEW 6.3 SWE 1.16 DEPTH 20.8 (10-33) INCHES melting, compaction, Rain on Snow melting R- max 1500-1800 S+ 0110-0250 Melt and runoff
4/9/2018 7:00 AM 0.51 5.2 M 21.0 M 0409180700 Ns S- F .5 mi 22 90% RH N 1+ SW 12 kt Tmxmn 36 27ºF S-v S SW - all day brief sun New 5.2 SWE 0.51 Depth 21.0 (12-25) inches settling, melting Dry Dendritic aggregates 1-4 mm 0200-07 Previous warm wet snow aggregates 3-10 mm April 2018 total accumulation now at 30.3 inches SWE 3.38 inches Significant Improvement
4/10/2018 7:00 AM 0.10 1.5 M 16.4 M 0410180700 CLR 20+ MI 21 80% RH CALM + W 10 KT Tmxmn 40 21ºF SW- v SW 0700-1300 new 1.5 SWE 0.10 Depth 16.4 (7-20) inches Melting and settling
4/12/2018 7:00 AM 0.00 0.0 M 10.4 M 0412180700 Cs As BKN 20+ mi 44 32% RH S 2+ W 38 kt Tmxmn 54 33ºF (at 2200 MDT) overnight min 2200-0700 was 43º RAPID RUNOFF melt Depth 10.4 (0-15) inches 85% cover
4/13/2018 7:00 AM 0.13 2.5 M 12.0 M 0413180700 Ns S- - F 3 mi 14 89% RH E 5+ W 28 kt Tmxmn 51 14ºF As Cs SCT v BKN all day Ns S- 1800-0700 SBGN 1830 SP- S- v S Dendritic aggregates Max 2030-2145 New 2.5 SWE 0.13 Depth 12 (2-17) inches
4/14/2018 8:00 AM 0.07 2.3 M 13.0 M 0414180800 Ns SW- 2 mi 19 88% RH NNW 3 + N 19 kt Tmxmn 27 14ºF Snow Squalls all day S— v S+ New 2.3 SWE 0.07 Depth 13 (4-17) inches BS Drifting Snow boards: 1.0 to 4.5 inches Dry snow
4/15/2018 7:00 AM 0.02 0.8 M 11.4 M 0415180700 Ns S- 1 mi 27 86% RH S 1+ W 16 kt Tmxmn 38 16ºF SW- SCT Sc BKN V SCT ALL DAY New 0.5 SWE 0.02 Depth 11.4 ( 0.8 - 16) inches light dry dentritic aggregates 2-7 mm
4/16/2018 7:00 AM T T M 8.8 M 0416180700 As Cs OVC 20+ mi 34 46% RH E 1 + SW 14 kt Tmxmn 47 26ºF SW- - end AM T New Depth 8.8 (0-13) inches 70% cover rapid melt and runoff
7/4/2018 8:00 AM T M M M M 0704190800 Fc SCT 20 mi 51 19% RH W 3+ 16 kt Tmxmn 77 46 SCT RW- T
7/5/2018 7:00 AM T 0.0 M 0.0 M 0705180700 Ac oct v BKN KH 15 mi SSE 2+S 14 kt Tmxmn 79 45 BKN VIRGA; microbursts, RW- - - CLR Ac KH by 2100
7/6/2018 7:00 AM T 0.0 M 0.0 M 0706180630 Cs K H 15 mi 42 85% RH Calm + SSE 24 kts Tmxmn 73 42ºF Ac BKN v OVC all day PM VIRGA and RW to SW-SE T
7/7/2018 7:00 AM 0.00 0.0 M 0.0 M 0707180700 CLR KH 15 MI 47 75% RH Calm + SE 16 kt Tmxmn 83 41ºF Cu SCT AM Cu+ Ac BKN PM wide scat RW—- VIRGA
7/8/2018 8:00 AM 0.00 0.0 M 0.0 M 0708180800 CLR KH 15 MI 57 59% RH Calm + SE 11 kt Tmxmn 83 47ºF Cu Cu+ Ac PM DARK SW to E
7/9/2018 7:00 AM 0.16 0.0 M 0.0 M 0709180700 CLR KH 20 MI 47 82% RH Calm + W 10 kt Tmxmn 82 47ºF Cu AM Cu+ Cb new 0.16 in RW TRW 1345-1435 max 1350-1405 RW+ large drops RW- 1605-1620 2200-2210
7/13/2018 7:00 AM 0.01 M M M M 0713180700 Ac SCT 20+ mi 42º 74% RH Calm + N 11 kt Tmxmn 76 42º F Cu Ac Cu+ SCT RW- v RW New 0.01 1400-1615
7/14/2018 7:00 AM 0.00 0.0 M M M 0714180700 Ac SCT v BKN Cu Cu+ 20+ Mi 42 40% RH Calm + E 10 kt Tmxmn 78 40 SCT RW to S washed out smoke
7/15/2018 8:30 AM T 0.0 M 0.0 M 0715180830 As OVC 20 mi 55º 64% RH Calm + N 9 kt Tmxmn 84 46ºF Ac BKN Cu Cu+Sc BKN SCT RW- - - T
7/16/2018 7:00 AM 0.15 0.0 M 0.0 M 0716180700 CLR 20+ MI 44 94% RH Calm + SE 10 kt tmxmn 72 46ºF As OVC Ns RW- SCT Ac SCT 1900-2200 QPE 0.15 in 4 mm RW+ Silverthorne 1650-1700 very local
7/17/2018 6:00 AM 0.01 0.0 M 0.0 M 0717180600 As Cs BKN 20 mi 46 83% RH SE 1+11 kt Tmxmn 83 41ºF CLR AM Cu Cs SCT v BKN Sc RW- - VIRGA sheets south QPE 0.01 inches
7/18/2018 7:00 AM 0.11 0.0 M 0.0 M 0718180700 Cs BKN 20 MI 50 68% RH Calm + N 13 kt Tmxmn 79 46ºF As Cs BKN Cu Cu+ SCT RW- 1750-1810 QPE 0.11 inches
7/19/2018 7:00 AM 0.00 0.0 M 0.0 M 0719180700 As Cs BKN 15 mi KH 47 61% RH Calm + E 13 kt Tmxmn 77 47ºF Cu SCT all day
7/20/2018 6:30 AM 0.00 0.0 M 0.0 M 0720180630 As Cs OVC 15 mi KH 50 47% RH Calm + NW 14 kt Tmxmn 84 47ºF As Cs BKN v SCT all Day
7/21/2018 7:00 AM 0.10 0.0 M 0.0 M 0721180700 CLR KH 15mi T 49 70% RH Calm + W 8 kt Tmxmn 79 50 As Cs BKN OVC Am Sc cu Cu+ BKN PM RW QPE 0.10 inches
7/22/2018 7:00 AM 0.01 0.0 M 0.0 M 0722180800 Ac SCT KH 5 mi 57 66% RH Nw 1 + E 13 kt Tmxmn 80 49ª cu cu+ KH AM Ac OVC RW- - QPE 0.01 inches 2030-2100
7/23/2018 8:00 AM 0.11 0.0 M 0.0 M 0723180800 CLR 20 mi 57 76% RH SE 2+W 14 kt tmxmn 82 53ºF Ac SCT v BKN Cu Cu+ Cb PM TRW- 2030-2130 QPE 0.11 inches
7/24/2018 6:30 AM 0.08 0.0 M 0.0 M 0723180630 Ac Cs SCT 20 mi 49 88% RH Calm + W 14 kt Tmxmn 78 49ºF CLR Ac cu SCT cu+ Cb RW- 1750-1830 QPE 0.08 inches
7/25/2018 7:00 AM T 0.0 M 0.0 M 0725180700 AcL SCT 20 mi 50 73% RH Calm + W 15 kt Tmxmn 81 49ºF Cs Cu SCT Cb 1500 TRW- - - 1530-1540 T Very Dry Dusty Soils
7/26/2018 7:00 AM 0.01 0.0 M 0.0 M 0726180700 Ac C SCT 15mi KH 48 78% CALM + W 17 kt Tmxmn 79 48ºF Ac BKN AM Cu Cu+ SCT PM RW- - - .01 inches 1500-1530
7/27/2018 7:00 AM 0.00 0.0 M 0.0 M 0727180700 Ac SCT 15 MI KH 47 72% RH Calm + W 15 kt Tmxmn 74 46ºF Cu Cu+ SCT v BKN
7/28/2018 7:00 AM 0.18 0.0 M 0.0 M 0728180700 CLR KH 15 mi 46 68% RH Calm + W 17 kt Tmxmn 76 46ºF Ac AM cu Cu+ Cb TRW- 1655-1720 max 1700-1710 QPE 0.18 inches good soaker but too short
7/29/2018 7:00 AM 0.03 0.0 M 0.0 M 0729180700 Cs OVC KH 15 mi 46 73% RH Calm + 22 mxmm 73 46ºF pulses of Gusty winds and Cu+ 0800, Cu+ RW- - 1300, 1700 RW— QPE 0.03 inches 5-10 min duration
7/30/2018 7:00 AM 0.07 0.0 M 0.0 M 0730180700 -X KH 8 mi 46 72% RH Calm + NW 18 kt Tmxmn 75 45ºF K layers VSBY down to 3 mi RW 1330-1420 QPE 0.07 Power Out 1837-2030
7/31/2018 7:00 AM 0.00 0.0 M 0.0 M 0731180700 CLR H 20 MI 40 77% RH Calm + N 16 kt Tmxmn 74 40º -X KH 0600; CLR 20 mi by 1000
8/1/2018 7:30 AM 0.00 0.0 M 0.0 M 0801180730 Ac BKN KH -X 15 mi 49 50% RH Calm + W 10kt Tmxmn 78 40ºF CLR Ac Cu KH
8/2/2018 7:00 AM 0.00 0.0 M 0.0 M 0802180700 Cs -X KH 5mi 45 70% Calm + W 20 kt Tmxmn 75 45ºF Ac OVC to BKN all day-X KH
8/3/2018 6:00 AM 0.00 0.0 M 0.0 M 0803180600 -X KH Ac BKN Cs OVC 5 MI 56 58% RH Calm + N 12 kt Tmxmn 79 45ºF Ac BKN V SCT -X K
8/4/2018 7:00 AM 0.26 0.0 M 0.0 M 0804180700 CLR 15 KH 41 91% RH CALM + N 13 KT TMXMN 66 40ºF As Ns OVC R- AM As OVC Ac BKN 1400-1600 Cu+ Cb RW TRW- 2010-2300 max 2015-2035 QPE 0.26 inches patchy frost on roofs
8/5/2018 7:30 AM 0.19 0.0 M 0.0 M 0805180730 Ns F R- 3 mi 47 91% RH Calm + SW 22 kt Tmxmn 76 40ºF 0700-1200 Cu Cu+ SCT 1200-1600 Cu+ As BKN 16-0730 Ns RW R- pulses 1730-1930; 0500-0730 QPE 0.19 inches wet ground
8/6/2018 8:00 AM 0.06 0.0 M 0.0 M 0806180800 Ac SCT 15 KH 58 51% RH W 1+ SW 33 KT Tmxmn 75 46ºF Ns F R- RW- Intermittent AM 2 waves Sc Cu WINDY PM QPE 0.06 inches
8/7/2018 6:00 AM 0.00 0.0 M 0.0 M 0807180600 Ac SCT -X KH 8 mi 47º 69% Calm + W 18 kt Tmxmn 76 45ºF Ac Cu Sc SCT v BKN KH-X
8/8/2018 7:00 AM 0.00 0.0 M 0.0 M 0808180700 -X KH 8 MI 47 42% RH Calm + NW 16 kt Tmxmn 79 47ºF Cu SCT v BKN all day KH
8/9/2018 7:00 AM 0.00 0.0 M 0.0 M 0809180700 Ac Cs SCT 15 mi 48 73% Calm + E 13 kt Tmxmn 80 46ºF Cu SCT -X KH all day
8/10/2018 7:00 AM 0.00 0.0 M 0.0 M 0810180700 CLR 20 mi 48 45% RH Calm + N 10 kt Tmxmn 82 48ºF Cu SCT all day KH
8/11/2018 7:00 AM 0.00 0.0 M 0.0 M 0811180700 CLR 20 mi 43 69% RH Calm + S 12 kt Tmxmn 78 46 CLR Cu SCT all day 1700 Cu+ to W-SW very DRY
8/12/2018 7:00 AM 0.00 0.0 M 0.0 M 0812180700 CLR 20+ MI 48 59% RH Calm +NW 10 KT Tmxmn 84 42ºF CLR Cu SCT
8/13/2018 8:00 AM 0.00 0.0 M 0.0 M 0813180800 CLR 10 MI KH 57 43%RH CALM + NE 11kt Tmxmn 85 46 Cu Cu+ SCT v BKN SCT VIRGA 1700-1900
8/14/2018 5:30 AM 0.00 0.0 M 0.0 M 0814180530 -X KH 5 MI 45 67% Calm + 15 kt Tmxmn 84 45ºF Cu KH AM Cu+ Ac BKN OVC DARK W 1700-2000 -X KH smell smoke
8/15/2018 7:00 AM T 0.0 M 0.0 M 0815180600 Ac Cs 10-X KH 48 76% CALM + E 11 kt Tmxmn 78 45ºF Cu SCT v BKN Cu+ RW- - - TRW+ EAST QPE T
8/16/2018 7:00 AM 0.00 0.0 M 0.0 M 0816180700 Ac Cs BKN 5 mi -x KH E 1+ 15 kt Tmxmn 79 47ºF AM VSBY 10-15 light KH PM -X KH
8/17/2018 7:00 AM 0.06 0.0 M 0.0 M 0817180700 AC CS BKN 8 MI KH 46 75% RH CALM + W 21 kt Tmxmn 76 46ºF Cu Cu+ RW 1330-1340 Sc BKN QPE .06 inches
8/18/2018 7:00 AM 0.16 0.0 M 0.0 M 0818180700 Cu+Ac Cs BKN 15 mi 48 80% RH SW 2+NE 9 KT Tmxmn 78 45ºF RW- 1745 - 2045 max 1910-1950 QPE 0.16 inches
8/19/2018 8:30 AM 0.12 0.0 M 0.0 M 0819180830 Sc Cu+ BKN 8 mi -X KH 48 76% rh SE 2+ NW 19 kt Tmxmn 70 47ºF Sc Cu+ Ns RW- 0950-1050; RW-1830-1930 QPE 0.12 inches
8/20/2018 7:00 AM 0.00 0.0 M 0.0 M 0820180700 CLR 15 MI KH 37 86% Calm + NE 14 kt Tmxmn 63 37 FROST on roofs Sc BKN all day cool N- NE flow
8/21/2018 8:50 AM 0.02 0.0 M 0.0 M 0821180850 Ns RW SCT 15 mi 53 67% S 1+ NW 17 kt Tmxmn 77 48ºF QQPE 0.02 INCHES RW- 0600, 0730
8/22/2018 7:00 AM 0.25 0.0 M 0.0 M 0822180700 Ns BKN As OVC R- - - 5 mi F 48 87% RH Calm + NW 15 Kt Tmxmn 64 47ºF Ns RW- v RW All day Max 1530-1630 QPE 0.25 inches SOIL absorbing moisture quickly
8/23/2018 7:00 AM 0.10 0.0 M 0.0 M 0823180700 Ns R- - F 8 mi 42 91% Rh NE 2+ NW 17 KT Tmxmn 66 42ºF Sc Ns RW- 0330-0700 max 0345-0400 QPE 0.10 inches Peaks obscured in clds
8/24/2018 7:00 AM 0.03 0.0 M 0.0 M 0824180700 Cu -X KH 46 70% Calm + NW 28 kt Tmxmn 67 42º SCT FROST RW 0730-08 QPE 0.03 inches
8/25/2018 7:00 AM 0.00 0.0 M 0.0 M 0825180700 Cs OVC -X KH 8 mi 49 63% Calm + NW 17 kt Tmxmn 75 46 Cu Cu+ SCT KH -X Windy Dry
8/26/2018 8:00 AM 0.00 0.0 M 0.0 M 0826180800 CLR 20+ MI 53 61% RH NW 3+ E 11 kt Tmxmn 76 47ºF Cs OVC 06-0900 K H Cu Ac SCT 09-1800 Breezy
8/27/2018 7:00 AM 0.07 0.0 M 0.0 M 0827180600 Sc BKN 20+mi 42 89% RH NW 5+18 kt Tmxmn 72 42ºF CLR 20+ mi AM Ac Cu Cu+ Cb TRW- 2230-2240; 0430-0510 max 0340-0400 QPE 0.07 inches
8/28/2018 8:50 AM 0.00 0.0 M 0.0 M 0828180850 CLR Cs SCT 20+ mi 42 51% RH Calm + NW 19 kt Tmxmn 73 42ºF Sc BKN AM Sc SCT PM CLR
8/29/2018 7:00 AM 0.00 0.0 M 0.0 M 0829180700 CLR 20+MI 42 47% RH CALM + NW 16kt Tmxmn 72 42ºF CLR Cs SCT Breezy
8/30/2018 7:00 AM 0.00 0.0 M 0.0 M 0830180700 Ac Cs SCT v BKN 20+ mi 47 44% RH NW 1+ 16 kt Tmxmn 75 42ºF Cu SCT 20+ all day
9/1/2018 7:00 AM 0.11 0.0 M 0.0 M 0901180700 Sc Ac Cs BKN 20+ mi 39º 80% RH Calm + NW 25 kt Tmxmn 73 39ºF Ac Cs SCT v BKN AM Cu Cu+ Cb TRW PM R+ TRW 1850-1930 QPE 0.11
9/3/2018 7:00 AM 0.01 0.0 M 0.0 M 0903180700 As OVC 15 MI 47 67% RH CALM + SW 12 kt Tmxmn 68 40ºF Ac Cs SCT v BKN Cu+ SCT RW- - PM QPE 0.01 inches Thick As with VIRGA 0600-0700+



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
10/1/2017 11/28/2017 7:00 AM 59 3.65 2.0 M 60% cover of snow; total accumulation from 091017 to 112817:>3.65 inches Belfort Guage bucket was full. More detailed daily reports of storms available with Davis Weather Station and neighbor reports of snowfall.



Observation Date Observation Time Notes Largest Stone Size Average Stone Size Smallest Stone Size Stone Consistency Duration Minutes Durration Accuracy Damage Timing More Rain than Hail Hail Started Largest Hail Started Angle of Impact Number of Stones on Pad Distance Between Stones on Pad Depth of Stones on Ground