Station Overview Station Location
Station Number NY-ER-83 Latitude 42.9698368
Station Name Williamsville 1 NW Longitude -78.76630158
County Erie Elevation (ft) 318



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 13 3.45 5.98 31 5.98 31 0.00 0 0 17 3 0.0 0 0
Nov 13 3.85 3.59 29 2.98 27 0.61 2 1 14 5 9.1 6 6
Dec 13 3.70 4.44 31 4.44 31 0.00 0 0 18 6 28.6 15 18
Jan 14 2.92 2.74 31 2.74 31 0.00 0 0 22 4 35.8 19 27
Feb 14 2.47 3.01 28 3.01 28 0.00 0 0 18 6 18.5 17 28
March 14 2.80 2.41 31 1.81 15 0.60 16 1 5 3 18.4 5 13
April 14 3.13 4.94 18 4.94 18 0.00 0 0 11 1 1.3 2 0
May 14 3.23 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
June 14 3.75 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
July 14 3.27 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Aug 14 3.25 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Sept 14 3.87 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Water Year Totals: 39.69" 27.11" 199 days 25.90" 181 1.21" 18 days 2 105 days 28 days 111.7" 64 days 92 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
10/1/2013 0.00
10/2/2013 0.00
10/3/2013 0.00
10/4/2013 0.77
10/5/2013 0.79
10/6/2013 0.44
10/7/2013 0.27
10/8/2013 0.39
10/9/2013 0.00
10/10/2013 0.00
10/11/2013 0.00
10/12/2013 0.00
10/13/2013 0.00
10/14/2013 0.38
10/15/2013 0.00
10/16/2013 0.27
10/17/2013 0.20
10/18/2013 0.44
10/19/2013 0.02
10/20/2013 0.37
10/21/2013 T
10/22/2013 0.61
10/23/2013 0.03
10/24/2013 0.04
10/25/2013 T
10/26/2013 0.16
10/27/2013 0.37
10/28/2013 0.00
10/29/2013 0.00
10/30/2013 T
10/31/2013 0.43
11/1/2013 0.78
11/2/2013 0.07
11/3/2013 0.15
11/4/2013 0.00
11/5/2013 0.00
11/6/2013 0.00
11/7/2013 0.54
11/8/2013 T
11/9/2013 T
11/10/2013 0.12
11/11/2013 0.02
11/12/2013 0.38
11/13/2013 0.00
11/14/2013 0.00
11/15/2013
11/16/2013 0.00
11/17/2013 **
11/18/2013 M 0.61
11/19/2013 T
11/20/2013 0.00
11/21/2013 T
11/22/2013 0.16
11/23/2013 0.11
11/24/2013 0.02
11/25/2013 T
11/26/2013 0.02
11/27/2013 0.51
11/28/2013 0.04
11/29/2013 0.06
11/30/2013 0.00
12/1/2013 0.00
12/2/2013 T
12/3/2013 0.00
12/4/2013 0.00
12/5/2013 0.00
12/6/2013 0.06
12/7/2013 0.00
12/8/2013 T
12/9/2013 0.03
12/10/2013 T
12/11/2013 0.08
12/12/2013 T
12/13/2013 0.24
12/14/2013 0.13
12/15/2013 0.50
12/16/2013 0.01
12/17/2013 0.09
12/18/2013 0.12
12/19/2013 0.00
12/20/2013 T
12/21/2013 1.13
12/22/2013 1.52
12/23/2013 0.09
12/24/2013 0.02
12/25/2013 0.06
12/26/2013 0.03
12/27/2013 0.22
12/28/2013 0.02
12/29/2013 0.00
12/30/2013 T
12/31/2013 0.09
Day of YearDaily PrcpMultiday Prcp
1/1/2014 T
1/2/2014 0.25
1/3/2014 0.17
1/4/2014 0.00
1/5/2014 0.00
1/6/2014 0.37
1/7/2014 0.10
1/8/2014 0.28
1/9/2014 0.04
1/10/2014 0.05
1/11/2014 0.09
1/12/2014 0.41
1/13/2014 0.00
1/14/2014 0.27
1/15/2014 T
1/16/2014 0.02
1/17/2014 0.02
1/18/2014 0.06
1/19/2014 0.04
1/20/2014 0.03
1/21/2014 0.03
1/22/2014 0.03
1/23/2014 T
1/24/2014 0.05
1/25/2014 0.12
1/26/2014 0.17
1/27/2014 0.12
1/28/2014 0.00
1/29/2014 T
1/30/2014 0.02
1/31/2014 0.00
2/1/2014 T
2/2/2014 0.61
2/3/2014 T
2/4/2014 T
2/5/2014 0.11
2/6/2014 0.35
2/7/2014 0.03
2/8/2014 T
2/9/2014 0.02
2/10/2014 0.07
2/11/2014 T
2/12/2014 0.00
2/13/2014 0.00
2/14/2014 0.00
2/15/2014 0.02
2/16/2014 T
2/17/2014 0.01
2/18/2014 0.07
2/19/2014 0.04
2/20/2014 0.04
2/21/2014 1.40
2/22/2014 0.07
2/23/2014 0.00
2/24/2014 0.01
2/25/2014 0.02
2/26/2014 0.03
2/27/2014 0.07
2/28/2014 0.04
3/1/2014 0.00
3/2/2014 0.18
3/3/2014 T
3/4/2014 0.00
3/5/2014 0.02
3/6/2014 T
3/7/2014 0.00
3/8/2014 0.00
3/9/2014 T
3/10/2014 0.00
3/11/2014 0.00
3/12/2014 0.09
3/13/2014 0.87
3/14/2014 **
3/15/2014 **
3/16/2014 **
3/17/2014 **
3/18/2014 **
3/19/2014 **
3/20/2014 **
3/21/2014 **
3/22/2014 **
3/23/2014 **
3/24/2014 **
3/25/2014 **
3/26/2014 **
3/27/2014 **
3/28/2014 **
3/29/2014 0.60
3/30/2014 0.65
3/31/2014 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2014 0.00
4/2/2014 0.00
4/3/2014 0.00
4/4/2014 T
4/5/2014 0.55
4/6/2014 0.00
4/7/2014 0.00
4/8/2014 1.33
4/9/2014 0.06
4/10/2014 0.00
4/11/2014 0.32
4/12/2014
4/13/2014 0.11
4/14/2014
4/15/2014 0.53
4/16/2014 0.22
4/17/2014
4/18/2014
4/19/2014 0.01
4/20/2014
4/21/2014
4/22/2014 0.16
4/23/2014 0.43
4/24/2014
4/25/2014
4/26/2014
4/27/2014
4/28/2014
4/29/2014
4/30/2014 1.22
5/1/2014
5/2/2014
5/3/2014
5/4/2014
5/5/2014
5/6/2014
5/7/2014
5/8/2014
5/9/2014
5/10/2014
5/11/2014
5/12/2014
5/13/2014
5/14/2014
5/15/2014
5/16/2014
5/17/2014
5/18/2014
5/19/2014
5/20/2014
5/21/2014
5/22/2014
5/23/2014
5/24/2014
5/25/2014
5/26/2014
5/27/2014
5/28/2014
5/29/2014
5/30/2014
5/31/2014
6/1/2014
6/2/2014
6/3/2014
6/4/2014
6/5/2014
6/6/2014
6/7/2014
6/8/2014
6/9/2014
6/10/2014
6/11/2014
6/12/2014
6/13/2014
6/14/2014
6/15/2014
6/16/2014
6/17/2014
6/18/2014
6/19/2014
6/20/2014
6/21/2014
6/22/2014
6/23/2014
6/24/2014
6/25/2014
6/26/2014
6/27/2014
6/28/2014
6/29/2014
6/30/2014
Day of YearDaily PrcpMultiday Prcp
7/1/2014
7/2/2014
7/3/2014
7/4/2014
7/5/2014
7/6/2014
7/7/2014
7/8/2014
7/9/2014
7/10/2014
7/11/2014
7/12/2014
7/13/2014
7/14/2014
7/15/2014
7/16/2014
7/17/2014
7/18/2014
7/19/2014
7/20/2014
7/21/2014
7/22/2014
7/23/2014
7/24/2014
7/25/2014
7/26/2014
7/27/2014
7/28/2014
7/29/2014
7/30/2014
7/31/2014
8/1/2014
8/2/2014
8/3/2014
8/4/2014
8/5/2014
8/6/2014
8/7/2014
8/8/2014
8/9/2014
8/10/2014
8/11/2014
8/12/2014
8/13/2014
8/14/2014
8/15/2014
8/16/2014
8/17/2014
8/18/2014
8/19/2014
8/20/2014
8/21/2014
8/22/2014
8/23/2014
8/24/2014
8/25/2014
8/26/2014
8/27/2014
8/28/2014
8/29/2014
8/30/2014
8/31/2014
9/1/2014
9/2/2014
9/3/2014
9/4/2014
9/5/2014
9/6/2014
9/7/2014
9/8/2014
9/9/2014
9/10/2014
9/11/2014
9/12/2014
9/13/2014
9/14/2014
9/15/2014
9/16/2014
9/17/2014
9/18/2014
9/19/2014
9/20/2014
9/21/2014
9/22/2014
9/23/2014
9/24/2014
9/25/2014
9/26/2014
9/27/2014
9/28/2014
9/29/2014
9/30/2014



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2013 7:00 AM 0.00 0.0 M M M
10/2/2013 7:00 AM 0.00 0.0 M M M
10/3/2013 7:00 AM 0.00 0.0 M M M
10/4/2013 7:00 AM 0.77 M M M M heavy showers 230 am. first rain in 13 days.
10/5/2013 8:30 AM 0.79 M M M M 0.31 noon-1 pm, 0.48 tstorm 7-8 am.
10/6/2013 8:30 AM 0.44 M M M M tstorm 730-8 am.
10/7/2013 8:30 AM 0.27 M M M M
10/8/2013 8:00 AM 0.39 M M M M 0.28 synoptic from 830-11 am.... 0.11 lk effect 1-3 pm.
10/9/2013 8:00 AM 0.00 0.0 M M M
10/10/2013 8:00 AM 0.00 0.0 M M M
10/11/2013 7:00 AM 0.00 0.0 M M M
10/12/2013 7:00 AM 0.00 0.0 M M M
10/13/2013 7:00 AM 0.00 0.0 M M M
10/14/2013 9:00 AM 0.38 M M M M
10/15/2013 7:00 AM 0.00 0.0 M M M
10/16/2013 8:00 AM 0.27 M M M M
10/17/2013 8:00 AM 0.20 M M M M heavy showers 545-645 pm
10/18/2013 7:00 AM 0.44 M M M M
10/19/2013 8:00 AM 0.02 M M M M shower 11 pm.
10/20/2013 9:00 AM 0.37 M M M M rain 330-730 pm
10/21/2013 8:00 AM T M M M M
10/22/2013 8:00 AM 0.61 M M M M
10/23/2013 9:00 AM 0.03 M M M M
10/24/2013 8:00 AM 0.04 T M M M graupel 430 pm
10/25/2013 7:00 AM T M M M M
10/26/2013 8:00 AM 0.16 M M M M
10/27/2013 7:00 AM 0.37 M M M M
10/28/2013 7:00 AM 0.00 0.0 M M M
10/29/2013 7:00 AM 0.00 0.0 M M M
10/30/2013 8:00 AM T M M M M
10/31/2013 8:30 AM 0.43 M M M M
11/1/2013 7:00 AM 0.78 M M M M
11/2/2013 9:00 AM 0.07 M M M M
11/3/2013 8:00 AM 0.15 M M M M
11/4/2013 7:00 AM 0.00 0.0 M M M
11/5/2013 7:00 AM 0.00 0.0 M M M
11/6/2013 7:00 AM 0.00 0.0 M M M
11/7/2013 8:00 AM 0.54 M M M M
11/8/2013 7:00 AM T M M M M
11/9/2013 9:00 AM T T M M M few graupel showers noon-4 pm...
11/10/2013 8:00 AM 0.12 M M M M
11/11/2013 9:00 AM 0.02 T M M M graupel shower 2 pm
11/12/2013 8:00 AM 0.38 0.5 M 0.5 M rain changed to snow 630 pm...ended 9 pm. first meas of season.
11/13/2013 8:00 AM 0.00 0.0 M 0.0 M
11/14/2013 7:00 AM 0.00 0.0 M M M
11/16/2013 7:00 AM 0.00 0.0 M M M
11/18/2013 7:00 AM M M M M M weekend total… (edit: originally submitted 11/18/2013 5:13 PM as 0.61", based on comment created multi-day and edited daily report to NA - SGB 11/19/13)
11/19/2013 9:00 AM T M M M M
11/20/2013 9:00 AM 0.00 0.0 M M M
11/21/2013 9:00 AM T M M M M
11/22/2013 9:00 AM 0.16 M M M M
11/23/2013 9:00 AM 0.11 M M M M
11/24/2013 8:00 AM 0.02 0.6 M 0.5 M
11/25/2013 8:00 AM T T M T M
11/26/2013 8:00 AM 0.02 0.1 M T M snow pellets 10-1130 pm
11/27/2013 8:00 AM 0.51 4.2 0.50 4.0 0.50
11/28/2013 7:00 AM 0.04 2.5 M 6.0 M fluffy geogian bay lk effect band 8 pm on...
11/29/2013 7:00 AM 0.06 1.2 M 6.0 M light lk enhanced snow 8 pm 0n...
11/30/2013 7:00 AM 0.00 0.0 M 4.5 M
12/1/2013 7:00 AM 0.00 0.0 M 4.0 0.50
12/2/2013 8:00 AM T 0.0 M 2.5 M
12/3/2013 8:00 AM 0.00 0.0 M T M
12/4/2013 8:00 AM 0.00 0.0 M T M
12/5/2013 9:00 AM 0.00 0.0 M 0.0 M 61 deg at obs time!
12/6/2013 7:00 AM 0.06 T M T M
12/7/2013 9:00 AM 0.00 0.0 M M M
12/8/2013 8:00 AM T T M 0.0 M
12/9/2013 8:00 AM 0.03 0.1 M T M
12/10/2013 8:00 AM T T M 0.0 M
12/11/2013 8:00 AM 0.08 1.7 M 1.0 M lake snow 5-7 pm
12/12/2013 8:00 AM T T M 0.5 M
12/13/2013 7:00 AM 0.24 5.3 M 5.0 M heavy lake effect snowband 4 pm-7 pm.
12/14/2013 8:00 AM 0.13 2.5 M 6.0 M snow 1-3 pm (1.6), 6-11 pm (0.3), 5-8 am (0.6). tot 2.5"
12/15/2013 7:00 AM 0.50 7.4 M 10.0 M
12/16/2013 8:00 AM 0.01 0.2 M 8.0 M
12/17/2013 8:00 AM 0.09 1.3 M 8.0 M
12/18/2013 8:00 AM 0.12 2.1 M 10.0 M 0.7" 111 am, 1.4" 9-1130 pm.
12/19/2013 7:00 AM 0.00 0.0 M 9.0 M
12/20/2013 7:00 AM T M M 5.5 1.10
12/21/2013 8:00 AM 1.13 0.0 M 1.0 M
12/22/2013 7:00 AM 1.52 0.0 M T M Some icing midnight to 5 am but relatively light.
12/23/2013 7:00 AM 0.09 0.0 M T M
12/24/2013 7:00 AM 0.02 0.4 M T M
12/25/2013 7:00 AM 0.06 1.8 M 1.5 M Nice coating for white Xmas...coldest temp in 3 yrs (2F)..
12/26/2013 9:00 AM 0.03 0.4 M 1.5 M
12/27/2013 7:00 AM 0.22 3.1 M 4.0 M heavy snow 10-11 am (2.5")
12/28/2013 8:00 AM 0.02 0.2 M 3.5 M
12/29/2013 8:00 AM 0.00 0.0 M T M rare sunny mild day...rapid snowmelt..
12/30/2013 8:00 AM T 0.2 M T M
12/31/2013 9:00 AM 0.09 1.9 M 2.0 M snow showers to 10 am 12/30 (0.5), heavy snow 815-850 am 12/31 (1.4)
1/1/2014 9:00 AM T T M 1.5 M
1/2/2014 8:00 AM 0.25 3.7 M 4.0 M
1/3/2014 7:00 AM 0.17 3.8 M 7.0 M storm total 7.5" since 4 pm wed 1/1
1/4/2014 8:00 AM 0.00 0.0 M 5.0 M
1/5/2014 8:00 AM 0.00 0.0 M 3.5 M nice day 36F sunny
1/6/2014 9:00 AM 0.37 T M 2.0 M
1/7/2014 8:00 AM 0.10 2.0 M 4.0 M brief squalls 3 pm and 6 pm...most of heavy snow stays just south...winds to 50 mph. temps near zero.
1/8/2014 8:00 AM 0.28 8.0 M 9.0 M squalls 9am to 7 pm: 3.0" 7pm to 6 am: 2.0" 6 am to 8 am: 3.0" total 8.0", storm total 10"
1/9/2014 8:00 AM 0.04 3.5 M 12.0 M very very fluffy snow...2.5" 8-11 am, 1.0 overnight.
1/10/2014 7:00 AM 0.05 0.7 M 9.0 M
1/11/2014 8:00 AM 0.09 T M 5.0 0.80
1/12/2014 8:00 AM 0.41 0.0 M 1.0 M patchy snow cover. 40% bare ground.
1/13/2014 8:00 AM 0.00 0.0 M T M
1/14/2014 8:00 AM 0.27 0.0 M 0.0 M
1/15/2014 8:00 AM T T M 0.0 M
1/16/2014 8:00 AM 0.02 0.4 M 0.5 M
1/17/2014 7:00 AM 0.02 0.2 M T M
1/18/2014 8:00 AM 0.06 1.0 M 1.0 M drifted tough to measure...windy overnight.
1/19/2014 8:00 AM 0.04 0.8 M 1.5 M 0.5 saturday 8 am to 1 pm, 0.3 early this morning.
1/20/2014 8:30 AM 0.03 0.5 M 2.0 M 0.3 sunday 8a-3p, 0.2 early today.
1/21/2014 8:00 AM 0.03 0.8 M 2.5 M
1/22/2014 9:00 AM 0.03 0.6 M 3.0 M
1/23/2014 7:00 AM T 0.1 M 2.5 M
1/24/2014 7:00 AM 0.05 0.8 M 3.0 M snizzle and snow showers from lake ontario...
1/25/2014 9:00 AM 0.12 2.2 M 4.0 M
1/26/2014 8:00 AM 0.17 2.7 M 6.0 M storm total 4.9"
1/27/2014 8:00 AM 0.12 3.5 M 10.0 M
1/28/2014 8:00 AM 0.00 0.0 M 8.0 M
1/29/2014 8:00 AM T T M 7.0 M
1/30/2014 8:00 AM 0.02 0.5 M 7.0 M very windy, weak lake snows 11 am to 6 pm, blowing snow.
1/31/2014 7:00 AM 0.00 0.0 M 6.0 M
2/1/2014 8:00 AM T T M 4.5 M
2/2/2014 8:30 AM 0.61 0.3 M 3.0 M
2/3/2014 8:00 AM T 0.3 M 3.0 M
2/4/2014 8:30 AM T T M 3.0 M
2/5/2014 8:00 AM 0.11 1.6 M 4.5 M
2/6/2014 8:00 AM 0.35 6.4 M 10.0 M storm total 8.0"
2/7/2014 8:00 AM 0.03 1.1 M 10.0 M lake effect snow showers
2/8/2014 8:00 AM T T M 8.0 M
2/9/2014 8:00 AM 0.02 0.4 M 8.0 M
2/10/2014 8:00 AM 0.07 1.1 M 8.0 M 0.8" sunday to 4 pm, o.3" overnight.
2/11/2014 8:00 AM T T M 8.0 M
2/12/2014 8:00 AM 0.00 0.0 M 8.0 M No snow!!!
2/13/2014 8:00 AM 0.00 0.0 M 7.0 M
2/14/2014 7:00 AM 0.00 0.0 M 6.5 M
2/15/2014 9:00 AM 0.02 0.3 M 6.5 M
2/16/2014 8:00 AM T 0.1 M 6.0 M
2/17/2014 8:00 AM 0.01 0.2 M 6.0 M
2/18/2014 8:00 AM 0.07 0.8 M 7.0 M
2/19/2014 8:00 AM 0.04 0.4 M 6.0 M
2/20/2014 7:00 AM 0.04 T M 5.0 M
2/21/2014 7:00 AM 1.40 T M 3.0 M thunderstorm 1230 am
2/22/2014 8:00 AM 0.07 T M 2.5 M
2/23/2014 7:00 AM 0.00 0.0 M 2.0 M
2/24/2014 8:00 AM 0.01 0.3 M 1.5 M
2/25/2014 8:00 AM 0.02 0.7 M 2.0 M
2/26/2014 8:00 AM 0.03 1.1 M 2.5 M
2/27/2014 9:00 AM 0.07 2.1 M 4.0 M Heavy snow 715-830 am
2/28/2014 7:00 AM 0.04 1.3 M 4.0 M
3/1/2014 8:00 AM 0.00 0.0 M 3.0 M
3/2/2014 8:00 AM 0.18 2.4 M 4.0 M
3/3/2014 8:00 AM T 0.3 M 4.0 M
3/4/2014 7:00 AM 0.00 0.0 M 4.0 M
3/5/2014 8:00 AM 0.02 0.4 M 4.0 M endless winter!
3/6/2014 8:00 AM T T M 4.0 M
3/7/2014 7:00 AM 0.00 0.0 M 3.5 M
3/8/2014 7:00 AM 0.00 0.0 M 2.0 M 30-40% bare ground...especially in open areas.
3/9/2014 8:00 AM T T M 2.0 M A little "snizzle" in afternoon
3/10/2014 7:00 AM 0.00 0.0 M 1.5 M
3/11/2014 5:30 AM 0.00 0.0 M T M
3/12/2014 7:00 AM 0.09 T M T M
3/13/2014 7:00 AM 0.87 11.0 M 11.0 M
3/30/2014 9:00 AM 0.65 4.3 M 4.0 M
3/31/2014 7:00 AM 0.00 0.0 M 1.5 M
4/1/2014 8:00 AM 0.00 0.0 M T M
4/2/2014 8:00 AM 0.00 0.0 M 0.0 M
4/3/2014 9:00 AM 0.00 0.0 M 0.0 M
4/4/2014 7:00 AM T 0.0 M 0.0 M
4/5/2014 8:30 AM 0.55 0.2 M T M
4/6/2014 8:00 AM 0.00 0.0 M 0.0 M
4/7/2014 7:00 AM 0.00 0.0 M M M
4/8/2014 8:00 AM 1.33 M M M M
4/9/2014 8:00 AM 0.06 T M M M
4/10/2014 8:00 AM 0.00 0.0 M M M
4/11/2014 8:00 AM 0.32 M M M M
4/13/2014 9:00 AM 0.11 M M M M
4/15/2014 8:30 AM 0.53 0.0 M 0.0 M
4/16/2014 9:00 AM 0.22 1.1 M 0.0 M rain changed to wet snow 845 am tapered off by noon. accum on grass and roofs only...melted away in afternoon.
4/19/2014 7:00 AM 0.01 M M M M brief shower 5 pm
4/22/2014 8:30 AM 0.16 M M M M
4/23/2014 9:00 AM 0.43 M M M M
4/30/2014 8:00 AM 1.22 M M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
11/17/2013 11/18/2013 7:00 AM 2 0.61 M M
3/14/2014 3/29/2014 12:00 AM 16 0.60 2.2 M



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