CoCoRaHS Station WYS : NY-UL-20

2017 CoCoRaHS Water Year Summary for Station NY-UL-20 Report generated on October 3, 2019

Station Overview		Station Location
Station Number	NY-UL-20	Latitude	41.867677
Station Name	Ulster Park 0.9 NNW	Longitude	-73.987955
County	Ulster	Elevation (ft)	176

Water Year Overview
Days in Water Year
Daily Prcp Observations
Multiday Prcp Observations
Hail Observations
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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	Days With Prcp	Days With Trace	Total Snowfall	Days With Snowfall	Days With Snow On Ground
Oct 16	4.43	0.00	0	0.00	0	0.00	0	0	0	0.0	0	0
Nov 16	3.71	0.00	0	0.00	0	0.00	0	0	0	0.0	0	0
Dec 16	3.88	0.00	0	0.00	0	0.00	0	0	0	0.0	0	0
Jan 17	3.37	0.00	0	0.00	0	0.00	0	0	0	0.0	0	0
Feb 17	2.83	0.00	0	0.00	0	0.00	0	0	0	0.0	0	0
March 17	3.92	1.14	13	1.14	13	0.00	0	5	1	0.1	1	0
April 17	3.98	5.14	29	5.14	29	0.00	0	15	0	0.0	0	0
May 17	4.34	5.97	29	5.97	29	0.00	0	17	1	0.0	0	0
June 17	4.28	4.10	30	4.10	30	0.00	0	12	0	0.0	0	0
July 17	4.37	3.20	31	3.20	31	0.00	0	15	1	0.0	0	0
Aug 17	4.12	4.24	31	4.24	31	0.00	0	9	1	0.0	0	0
Sept 17	4.45	3.11	29	3.11	29	0.00	0	12	5	0.0	0	0
Water Year Totals:	47.68"	26.90"	192 days	26.90"	192	0.00"	0 days	85 days	9 days	0.1"	1 days	0 days

Water Year Overview
Days in Water Year
Daily Prcp Observations
Multiday Prcp Observations
Hail Observations
Top of Page

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
10/1/2016
10/2/2016
10/3/2016
10/4/2016
10/5/2016
10/6/2016
10/7/2016
10/8/2016
10/9/2016
10/10/2016
10/11/2016
10/12/2016
10/13/2016
10/14/2016
10/15/2016
10/16/2016
10/17/2016
10/18/2016
10/19/2016
10/20/2016
10/21/2016
10/22/2016
10/23/2016
10/24/2016
10/25/2016
10/26/2016
10/27/2016
10/28/2016
10/29/2016
10/30/2016
10/31/2016
11/1/2016
11/2/2016
11/3/2016
11/4/2016
11/5/2016
11/6/2016
11/7/2016
11/8/2016
11/9/2016
11/10/2016
11/11/2016
11/12/2016
11/13/2016
11/14/2016
11/15/2016
11/16/2016
11/17/2016
11/18/2016
11/19/2016
11/20/2016
11/21/2016
11/22/2016
11/23/2016
11/24/2016
11/25/2016
11/26/2016
11/27/2016
11/28/2016
11/29/2016
11/30/2016
12/1/2016
12/2/2016
12/3/2016
12/4/2016
12/5/2016
12/6/2016
12/7/2016
12/8/2016
12/9/2016
12/10/2016
12/11/2016
12/12/2016
12/13/2016
12/14/2016
12/15/2016
12/16/2016
12/17/2016
12/18/2016
12/19/2016
12/20/2016
12/21/2016
12/22/2016
12/23/2016
12/24/2016
12/25/2016
12/26/2016
12/27/2016
12/28/2016
12/29/2016
12/30/2016
12/31/2016

Day of Year	Daily Prcp	Multiday Prcp
1/1/2017
1/2/2017
1/3/2017
1/4/2017
1/5/2017
1/6/2017
1/7/2017
1/8/2017
1/9/2017
1/10/2017
1/11/2017
1/12/2017
1/13/2017
1/14/2017
1/15/2017
1/16/2017
1/17/2017
1/18/2017
1/19/2017
1/20/2017
1/21/2017
1/22/2017
1/23/2017
1/24/2017
1/25/2017
1/26/2017
1/27/2017
1/28/2017
1/29/2017
1/30/2017
1/31/2017
2/1/2017
2/2/2017
2/3/2017
2/4/2017
2/5/2017
2/6/2017
2/7/2017
2/8/2017
2/9/2017
2/10/2017
2/11/2017
2/12/2017
2/13/2017
2/14/2017
2/15/2017
2/16/2017
2/17/2017
2/18/2017
2/19/2017
2/20/2017
2/21/2017
2/22/2017
2/23/2017
2/24/2017
2/25/2017
2/26/2017
2/27/2017
2/28/2017
3/1/2017
3/2/2017
3/3/2017
3/4/2017
3/5/2017
3/6/2017
3/7/2017
3/8/2017
3/9/2017
3/10/2017
3/11/2017
3/12/2017
3/13/2017
3/14/2017
3/15/2017
3/16/2017
3/17/2017
3/18/2017
3/19/2017	T
3/20/2017	0.00
3/21/2017	0.00
3/22/2017	0.00
3/23/2017	0.00
3/24/2017	0.00
3/25/2017	0.00
3/26/2017	0.09
3/27/2017	0.45
3/28/2017	0.14
3/29/2017	0.43
3/30/2017	0.00
3/31/2017	0.03

Day of Year	Daily Prcp	Multiday Prcp
4/1/2017	1.15
4/2/2017	0.00
4/3/2017	0.00
4/4/2017	0.89
4/5/2017	0.32
4/6/2017	0.01
4/7/2017	0.79
4/8/2017	0.01
4/9/2017	0.00
4/10/2017	0.00
4/11/2017	0.00
4/12/2017	0.00
4/13/2017	0.19
4/14/2017	0.00
4/15/2017	0.00
4/16/2017	0.00
4/17/2017	0.13
4/18/2017	0.00
4/19/2017
4/20/2017	0.26
4/21/2017	0.60
4/22/2017	0.03
4/23/2017	0.02
4/24/2017	0.00
4/25/2017	0.03
4/26/2017	0.69
4/27/2017	0.02
4/28/2017	0.00
4/29/2017	0.00
4/30/2017	0.00
5/1/2017	0.04
5/2/2017	0.62
5/3/2017	0.00
5/4/2017	0.00
5/5/2017	0.08
5/6/2017	1.26
5/7/2017	0.77
5/8/2017	0.22
5/9/2017	0.00
5/10/2017	0.00
5/11/2017	0.00
5/12/2017
5/13/2017	0.03
5/14/2017	1.22
5/15/2017	0.08
5/16/2017	0.00
5/17/2017	0.00
5/18/2017	0.00
5/19/2017	0.09
5/20/2017	0.00
5/21/2017
5/22/2017	0.06
5/23/2017	0.08
5/24/2017	0.00
5/25/2017	0.02
5/26/2017	0.88
5/27/2017	0.06
5/28/2017	0.00
5/29/2017	T
5/30/2017	0.43
5/31/2017	0.03
6/1/2017	0.51
6/2/2017	0.00
6/3/2017	0.00
6/4/2017	0.01
6/5/2017	0.45
6/6/2017	1.16
6/7/2017	0.33
6/8/2017	0.00
6/9/2017	0.00
6/10/2017	0.00
6/11/2017	0.00
6/12/2017	0.00
6/13/2017	0.00
6/14/2017	0.06
6/15/2017	0.00
6/16/2017	0.00
6/17/2017	0.19
6/18/2017	0.00
6/19/2017	0.14
6/20/2017	0.69
6/21/2017	0.00
6/22/2017	0.00
6/23/2017	0.00
6/24/2017	0.47
6/25/2017	0.07
6/26/2017	0.00
6/27/2017	0.00
6/28/2017	0.02
6/29/2017	0.00
6/30/2017	0.00

Day of Year	Daily Prcp	Multiday Prcp
7/1/2017	0.29
7/2/2017	0.04
7/3/2017	0.07
7/4/2017	0.00
7/5/2017	0.00
7/6/2017	0.00
7/7/2017	0.04
7/8/2017	0.30
7/9/2017	0.00
7/10/2017	0.00
7/11/2017	0.13
7/12/2017	0.01
7/13/2017	0.09
7/14/2017	0.63
7/15/2017	0.28
7/16/2017	0.00
7/17/2017	0.00
7/18/2017	0.13
7/19/2017	0.00
7/20/2017	0.00
7/21/2017	0.00
7/22/2017	0.00
7/23/2017	0.01
7/24/2017	0.29
7/25/2017	0.87
7/26/2017	T
7/27/2017	0.00
7/28/2017	0.02
7/29/2017	0.00
7/30/2017	0.00
7/31/2017	0.00
8/1/2017	0.03
8/2/2017	0.00
8/3/2017	0.67
8/4/2017	0.00
8/5/2017	1.19
8/6/2017	0.00
8/7/2017	0.00
8/8/2017	0.23
8/9/2017	0.00
8/10/2017	0.00
8/11/2017	0.00
8/12/2017	1.39
8/13/2017	T
8/14/2017	0.00
8/15/2017	0.08
8/16/2017	0.00
8/17/2017	0.00
8/18/2017	0.06
8/19/2017	0.16
8/20/2017	0.00
8/21/2017	0.00
8/22/2017	0.00
8/23/2017	0.43
8/24/2017	0.00
8/25/2017	0.00
8/26/2017	0.00
8/27/2017	0.00
8/28/2017	0.00
8/29/2017	0.00
8/30/2017	0.00
8/31/2017	0.00
9/1/2017	0.00
9/2/2017	0.00
9/3/2017	0.63
9/4/2017	0.62
9/5/2017	0.00
9/6/2017	0.26
9/7/2017	0.79
9/8/2017	0.01
9/9/2017	0.00
9/10/2017	0.01
9/11/2017	0.01
9/12/2017	T
9/13/2017	0.01
9/14/2017	0.00
9/15/2017	0.72
9/16/2017	T
9/17/2017	0.01
9/18/2017	T
9/19/2017	T
9/20/2017
9/21/2017	0.00
9/22/2017	0.00
9/23/2017	0.00
9/24/2017	0.00
9/25/2017	T
9/26/2017	0.00
9/27/2017	0.01
9/28/2017	0.00
9/29/2017	0.00
9/30/2017	0.03

Water Year Overview
Days in Water Year
Daily Prcp Observations
Multiday Prcp Observations
Hail Observations
Top of Page

Observation Date	Observation Time	Precipitation	Snowfall	Snowfall SWE	Snow Depth	Snow SWE	Notes
3/19/2017	7:30 AM	T	0.1	T	M	M
3/20/2017	7:30 AM	0.00	0.0	M	M	M
3/21/2017	7:30 AM	0.00	0.0	M	M	M
3/22/2017	7:30 AM	0.00	0.0	M	M	M
3/23/2017	7:30 AM	0.00	0.0	M	M	M
3/24/2017	7:30 AM	0.00	0.0	M	M	M
3/25/2017	7:30 AM	0.00	0.0	M	M	M
3/26/2017	7:30 AM	0.09	M	M	M	M
3/27/2017	7:30 AM	0.45	M	M	M	M
3/28/2017	7:30 AM	0.14	M	M	M	M
3/29/2017	7:30 AM	0.43	M	M	M	M
3/30/2017	7:30 AM	0.00	0.0	M	M	M
3/31/2017	7:30 AM	0.03	M	M	M	M
4/1/2017	7:30 AM	1.15	M	M	M	M	there was a trace of snow, but it had melted by 6:00 am
4/2/2017	7:30 AM	0.00	0.0	M	M	M
4/3/2017	7:30 AM	0.00	0.0	M	M	M
4/4/2017	7:30 AM	0.89	M	M	M	M
4/5/2017	7:30 AM	0.32	M	M	M	M
4/6/2017	7:30 AM	0.01	M	M	M	M
4/7/2017	7:30 AM	0.79	M	M	M	M	thunderstorm started 4:20 pm, lasted @ 1 hr
4/8/2017	7:30 AM	0.01	M	M	M	M
4/9/2017	7:30 AM	0.00	0.0	M	M	M
4/10/2017	7:30 AM	0.00	0.0	M	M	M
4/11/2017	7:30 AM	0.00	0.0	M	M	M
4/12/2017	7:30 AM	0.00	0.0	M	M	M
4/13/2017	7:30 AM	0.19	M	M	M	M
4/14/2017	7:30 AM	0.00	0.0	M	M	M
4/15/2017	7:30 AM	0.00	0.0	M	M	M
4/16/2017	7:30 AM	0.00	0.0	M	M	M
4/17/2017	7:30 AM	0.13	0.0	M	M	M
4/18/2017	7:30 AM	0.00	0.0	M	M	M
4/20/2017	7:30 AM	0.26	M	M	M	M
4/21/2017	7:30 AM	0.60	M	M	M	M
4/22/2017	7:30 AM	0.03	M	M	M	M
4/23/2017	7:30 AM	0.02	M	M	M	M
4/24/2017	7:30 AM	0.00	0.0	M	M	M
4/25/2017	7:30 AM	0.03	M	M	M	M
4/26/2017	7:30 AM	0.69	M	M	M	M	raining/misting the entire time on and off
4/27/2017	7:30 AM	0.02	M	M	M	M
4/28/2017	7:30 AM	0.00	0.0	M	M	M
4/29/2017	7:30 AM	0.00	0.0	M	M	M
4/30/2017	7:30 AM	0.00	0.0	M	M	M
5/1/2017	7:30 AM	0.04	M	M	M	M
5/2/2017	7:30 AM	0.62	M	M	M	M
5/3/2017	7:30 AM	0.00	0.0	M	M	M
5/4/2017	7:30 AM	0.00	0.0	M	M	M
5/5/2017	7:30 AM	0.08	M	M	M	M
5/6/2017	7:30 AM	1.26	M	M	M	M
5/7/2017	7:30 AM	0.77	M	M	M	M
5/8/2017	7:30 AM	0.22	M	M	M	M
5/9/2017	7:30 AM	0.00	0.0	M	M	M
5/10/2017	7:30 AM	0.00	0.0	M	M	M
5/11/2017	7:30 AM	0.00	0.0	M	M	M
5/13/2017	7:30 AM	0.03	M	M	M	M
5/14/2017	7:30 AM	1.22	M	M	M	M
5/15/2017	7:30 AM	0.08	M	M	M	M
5/16/2017	7:30 AM	0.00	0.0	M	M	M
5/17/2017	7:30 AM	0.00	0.0	M	M	M
5/18/2017	7:30 AM	0.00	0.0	M	M	M
5/19/2017	7:30 AM	0.09	M	M	M	M
5/20/2017	7:30 AM	0.00	0.0	M	M	M
5/22/2017	7:30 AM	0.06	M	M	M	M
5/23/2017	7:30 AM	0.08	M	M	M	M
5/24/2017	7:30 AM	0.00	0.0	M	M	M
5/25/2017	7:30 AM	0.02	M	M	M	M
5/26/2017	7:30 AM	0.88	M	M	M	M
5/27/2017	7:30 AM	0.06	M	M	M	M
5/28/2017	7:30 AM	0.00	0.0	M	M	M
5/29/2017	7:30 AM	T	M	M	M	M
5/30/2017	7:30 AM	0.43	M	M	M	M
5/31/2017	7:30 AM	0.03	M	M	M	M
6/1/2017	7:30 AM	0.51	M	M	M	M	.36 6:15-6:45 PM followed by a double rainbow .15 started at 9:45 PM both storms had thunder and lightening
6/2/2017	7:30 AM	0.00	0.0	M	M	M
6/3/2017	7:30 AM	0.00	0.0	M	M	M
6/4/2017	7:30 AM	0.01	M	M	M	M
6/5/2017	7:30 AM	0.45	M	M	M	M
6/6/2017	7:30 AM	1.16	M	M	M	M
6/7/2017	7:30 AM	0.33	M	M	M	M
6/8/2017	7:30 AM	0.00	0.0	M	M	M
6/9/2017	7:30 AM	0.00	0.0	M	M	M
6/10/2017	7:30 AM	0.00	0.0	M	M	M
6/11/2017	7:30 AM	0.00	0.0	M	M	M
6/12/2017	7:30 AM	0.00	0.0	M	M	M
6/13/2017	7:30 AM	0.00	0.0	M	M	M
6/14/2017	7:30 AM	0.06	M	M	M	M
6/15/2017	7:30 AM	0.00	0.0	M	M	M
6/16/2017	7:30 AM	0.00	0.0	M	M	M
6/17/2017	7:30 AM	0.19	M	M	M	M
6/18/2017	7:30 AM	0.00	0.0	M	M	M
6/19/2017	7:30 AM	0.14	M	M	M	M
6/20/2017	7:30 AM	0.69	M	M	M	M
6/21/2017	7:30 AM	0.00	0.0	M	M	M
6/22/2017	7:30 AM	0.00	0.0	M	M	M
6/23/2017	7:30 AM	0.00	0.0	M	M	M
6/24/2017	7:30 AM	0.47	M	M	M	M
6/25/2017	7:30 AM	0.07	M	M	M	M
6/26/2017	7:30 AM	0.00	0.0	M	M	M
6/27/2017	7:30 AM	0.00	0.0	M	M	M
6/28/2017	7:30 AM	0.02	M	M	M	M
6/29/2017	7:30 AM	0.00	0.0	M	M	M
6/30/2017	7:30 AM	0.00	0.0	M	M	M
7/1/2017	7:30 AM	0.29	M	M	M	M
7/2/2017	7:30 AM	0.04	M	M	M	M
7/3/2017	7:30 AM	0.07	M	M	M	M
7/4/2017	7:30 AM	0.00	0.0	M	M	M
7/5/2017	7:30 AM	0.00	0.0	M	M	M
7/6/2017	7:30 AM	0.00	0.0	M	M	M
7/7/2017	7:30 AM	0.04	M	M	M	M
7/8/2017	7:30 AM	0.30	M	M	M	M
7/9/2017	7:30 AM	0.00	0.0	M	M	M
7/10/2017	7:30 AM	0.00	0.0	M	M	M
7/11/2017	7:30 AM	0.13	M	M	M	M
7/12/2017	7:30 AM	0.01	M	M	M	M
7/13/2017	7:30 AM	0.09	M	M	M	M
7/14/2017	7:30 AM	0.63	M	M	M	M
7/15/2017	7:30 AM	0.28	M	M	M	M
7/16/2017	7:30 AM	0.00	0.0	M	M	M
7/17/2017	7:30 AM	0.00	0.0	M	M	M
7/18/2017	7:30 AM	0.13	M	M	M	M
7/19/2017	7:30 AM	0.00	0.0	M	M	M
7/20/2017	7:30 AM	0.00	0.0	M	M	M
7/21/2017	7:30 AM	0.00	0.0	M	M	M
7/22/2017	7:30 AM	0.00	0.0	M	M	M
7/23/2017	7:30 AM	0.01	M	M	M	M
7/24/2017	7:30 AM	0.29	M	M	M	M
7/25/2017	7:30 AM	0.87	M	M	M	M	.85 fell from 7:30-11:30 am
7/26/2017	7:30 AM	T	M	M	M	M
7/27/2017	7:30 AM	0.00	0.0	M	M	M
7/28/2017	7:30 AM	0.02	M	M	M	M
7/29/2017	7:30 AM	0.00	0.0	M	M	M
7/30/2017	7:30 AM	0.00	0.0	M	M	M
7/31/2017	7:30 AM	0.00	0.0	M	M	M
8/1/2017	7:30 AM	0.03	0.0	M	M	M
8/2/2017	7:30 AM	0.00	0.0	M	M	M
8/3/2017	7:30 AM	0.67	M	M	M	M	.66 fell 1:55-2:20 PM storm had rain, lightning, pea sized hail (a few appeared to be 2 attached together), strong winds (a few branches blown off of trees)
8/4/2017	7:30 AM	0.00	0.0	M	M	M
8/5/2017	7:30 AM	1.19	M	M	M	M	1.12" fell 2:40-3:05 PM
8/6/2017	7:30 AM	0.00	0.0	M	M	M
8/7/2017	7:30 AM	0.00	0.0	M	M	M
8/8/2017	7:30 AM	0.23	M	M	M	M
8/9/2017	7:30 AM	0.00	0.0	M	M	M
8/10/2017	7:30 AM	0.00	0.0	M	M	M
8/11/2017	7:30 AM	0.00	0.0	M	M	M
8/12/2017	7:30 AM	1.39	M	M	M	M
8/13/2017	7:30 AM	T	M	M	M	M	rain started 5:15 AM
8/14/2017	7:30 AM	0.00	0.0	M	M	M	rain started 5:15 AM
8/15/2017	7:30 AM	0.08	M	M	M	M	rain started 5:15 AM
8/16/2017	7:30 AM	0.00	0.0	M	M	M
8/17/2017	7:30 AM	0.00	0.0	M	M	M
8/18/2017	7:30 AM	0.06	M	M	M	M
8/19/2017	7:30 AM	0.16	M	M	M	M
8/20/2017	7:30 AM	0.00	0.0	M	M	M
8/21/2017	7:30 AM	0.00	0.0	M	M	M
8/22/2017	7:30 AM	0.00	0.0	M	M	M
8/23/2017	7:30 AM	0.43	M	M	M	M
8/24/2017	7:30 AM	0.00	0.0	M	M	M
8/25/2017	7:30 AM	0.00	0.0	M	M	M
8/26/2017	7:30 AM	0.00	0.0	M	M	M
8/27/2017	7:30 AM	0.00	0.0	M	M	M
8/28/2017	7:30 AM	0.00	0.0	M	M	M
8/29/2017	7:30 AM	0.00	0.0	M	M	M
8/30/2017	7:30 AM	0.00	0.0	M	M	M
8/31/2017	7:30 AM	0.00	0.0	M	M	M
9/1/2017	7:30 AM	0.00	0.0	M	M	M
9/2/2017	7:30 AM	0.00	0.0	M	M	M
9/3/2017	7:30 AM	0.63	M	M	M	M
9/4/2017	7:30 AM	0.62	M	M	M	M
9/5/2017	7:30 AM	0.00	0.0	M	M	M
9/6/2017	7:30 AM	0.26	M	M	M	M
9/7/2017	7:30 AM	0.79	M	M	M	M
9/8/2017	7:30 AM	0.01	M	M	M	M
9/9/2017	7:30 AM	0.00	0.0	M	M	M
9/10/2017	7:30 AM	0.01	M	M	M	M
9/11/2017	7:30 AM	0.01	M	M	M	M
9/12/2017	7:30 AM	T	M	M	M	M
9/13/2017	7:30 AM	0.01	M	M	M	M	the precip for the 4 days 9-10/9-13 is from the condensation of heavy dew and fog
9/14/2017	7:30 AM	0.00	0.0	M	M	M
9/15/2017	7:30 AM	0.72	M	M	M	M
9/16/2017	7:30 AM	T	M	M	M	M
9/17/2017	7:30 AM	0.01	M	M	M	M	condensation from fog and dew
9/18/2017	7:30 AM	T	M	M	M	M	condensation from fog and dew
9/19/2017	7:30 AM	T	M	M	M	M	condensation from dew and fog
9/21/2017	7:30 AM	0.00	0.0	M	M	M
9/22/2017	7:30 AM	0.00	0.0	M	M	M
9/23/2017	7:30 AM	0.00	0.0	M	M	M
9/24/2017	7:30 AM	0.00	0.0	M	M	M
9/25/2017	7:30 AM	T	M	M	M	M	from condensation
9/26/2017	7:30 AM	0.00	0.0	M	M	M
9/27/2017	7:30 AM	0.01	M	M	M	M	from condensation of fog and dew
9/28/2017	7:30 AM	0.00	0.0	M	M	M
9/29/2017	7:30 AM	0.00	0.0	M	M	M
9/30/2017	7:30 AM	0.03	M	M	M	M

Water Year Overview
Days in Water Year
Daily Prcp Observations
Multiday Prcp Observations
Hail Observations
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Start Date	End Date & Time	Duration in Days	Precipitation	Snow Depth	Snow Depth SWE	Notes

Water Year Overview
Days in Water Year
Daily Prcp Observations
Multiday Prcp Observations
Hail Observations
Top of Page

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