Alert archive / New York / Rockland County

Weather alerts in Rockland County, New York, 2012

182 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Rockland County and its neighbors

Each county as a circle sized by its count in 2012. Tap one for its archive.

Alerts: 182
Warnings: 31
Watches: 22
Advisories: 55
Busiest month: July45 alerts
Busiest day: May 26, 201210 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

0 of 3 tornado warnings covering Rockland County in 2012 had a tornado report inside them.

Rockland County, 2012

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	3	0	100%	0
Severe thunderstorm warnings	17	14	18%	9	100%	17 min
Flash flood warnings	5	3	40%	1	100%	78 min

Each office's whole area, 2012

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS New York, NY: tornado warnings	13	3	77%	6	83%	13 min
NWS New York, NY: severe thunderstorm warnings	93	68	27%	157	82%	28 min
NWS New York, NY: flash flood warnings	35	29	17%	89	90%	43 min

An office's figures cover every county it serves, including across state lines.

Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.

The alerts

Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Lasted
Jan 12, 9:39 PM EST	Wind Advisory	OKX	23 hr
Jan 16, 4:19 AM EST	Winter Weather Advisory	OKX	29 hr
Jan 18, 3:09 AM EST	Wind Advisory	OKX	4 hr
Jan 20, 3:41 AM EST	Winter Storm Watch	OKX	12 hr
Jan 20, 3:41 AM EST	Winter Weather Advisory	OKX	36 hr
Jan 22, 3:40 PM EST	Freezing Rain Advisory	OKX	20 hr
Jan 27, 10:35 AM EST	Areal Flood Advisory	OKX	3 hr
Feb 24, 4:13 AM EST	Wind Advisory	OKX	44 hr
Mar 8, 4:05 AM EST	Wind Advisory	OKX	18 hr
Mar 17, 2:21 AM EDT	Dense Fog Advisory	OKX	5 hr
Apr 21, 4:05 PM EDT	Flood Watch	OKX	36 hr
Apr 22, 10:02 PM EDT	Areal Flood Advisory	OKX	6 hr
Apr 27, 3:55 AM EDT	Freeze Warning	OKX	28 hr
Apr 28, 3:51 AM EDT	Freeze Watch	OKX	11 hr
Apr 28, 3:15 PM EDT	Frost Advisory	OKX	17 hr
Apr 29, 3:47 AM EDT	Freeze Watch	OKX	9 hr
Apr 29, 12:40 PM EDT	Freeze Warning	OKX	19 hr
May 9, 5:20 PM EDT	Areal Flood Advisory	OKX	55 min
May 9, 5:45 PM EDT	Flash Flood Warning	OKX	4 hr
May 9, 9:15 PM EDT	Areal Flood Advisory	OKX	2 hr
May 15, 8:06 PM EDT	Dense Fog Advisory	OKX	13 hr
May 21, 10:47 AM EDT	Areal Flood Advisory	OKX	118 min
May 26, 1:17 PM EDT	Mesoscale Discussion	SPC	88 min
May 26, 2:08 PM EDT	Mesoscale Discussion	SPC	37 min
May 26, 2:29 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
May 26, 2:33 PM EDT	Special Weather Statement	OKX	42 min
May 26, 2:49 PM EDT	Severe Thunderstorm Warning	OKX	41 min
May 26, 3:23 PM EDT	Areal Flood Advisory	OKX	82 min
May 26, 3:55 PM EDT	Areal Flood Advisory	OKX	95 min
May 26, 4:00 PM EDT	Severe Thunderstorm Warning	OKX	47 min
May 26, 4:52 PM EDT	Areal Flood Advisory	OKX	83 min
May 26, 6:04 PM EDT	Mesoscale Discussion	SPC	56 min
May 28, 11:19 AM EDT	Mesoscale Discussion	SPC	56 min
May 28, 2:25 PM EDT	Mesoscale Discussion	SPC	65 min
May 29, 2:13 PM EDT	Mesoscale Discussion	SPC	62 min
May 29, 5:54 PM EDT	Severe Thunderstorm Watch	SPC	3 hr
May 29, 7:01 PM EDT	Mesoscale Discussion	SPC	89 min
May 29, 7:23 PM EDT	Special Weather Statement	OKX	67 min
May 29, 7:55 PM EDT	Special Weather Statement	OKX	50 min
Jun 3, 1:37 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 3, 2:11 PM EDT	Special Weather Statement	OKX	49 min
Jun 19, 4:04 PM EDT	Heat Advisory	OKX	52 hr
Jun 22, 12:18 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 22, 1:41 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 22, 3:57 PM EDT	Special Weather Statement	OKX	63 min
Jun 22, 4:04 PM EDT	Severe Thunderstorm Warning	OKX	41 min
Jun 22, 4:33 PM EDT	Mesoscale Discussion	SPC	87 min
Jun 22, 4:46 PM EDT	Severe Thunderstorm Warning	OKX	34 min
Jun 22, 5:08 PM EDT	Severe Thunderstorm Warning	OKX	36 min
Jun 25, 3:44 AM EDT	Mesoscale Discussion	SPC	2 hr
Jun 25, 6:21 AM EDT	Mesoscale Discussion	SPC	24 min
Jun 25, 2:36 PM EDT	Special Weather Statement	OKX	54 min
Jun 25, 2:40 PM EDT	Special Weather Statement	OKX	50 min
Jun 25, 3:12 PM EDT	Mesoscale Discussion	SPC	63 min
Jun 25, 3:29 PM EDT	Special Weather Statement	OKX	46 min
Jun 28, 3:35 PM EDT	Heat Advisory	OKX	27 hr
Jun 29, 4:19 AM EDT	Special Weather Statement	OKX	41 min
Jun 29, 5:00 AM EDT	Special Weather Statement	OKX	45 min
Jul 1, 12:11 PM EDT	Mesoscale Discussion	SPC	64 min
Jul 1, 1:35 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 1, 2:34 PM EDT	Special Weather Statement	OKX	56 min
Jul 1, 2:48 PM EDT	Severe Thunderstorm Warning	OKX	42 min
Jul 1, 3:25 PM EDT	Mesoscale Discussion	SPC	95 min
Jul 1, 4:31 PM EDT	Severe Thunderstorm Warning	OKX	44 min
Jul 1, 5:23 PM EDT	Areal Flood Advisory	OKX	42 min
Jul 4, 6:46 PM EDT	Mesoscale Discussion	SPC	59 min
Jul 6, 3:26 AM EDT	Heat Advisory	OKX	36 hr
Jul 7, 11:19 AM EDT	Mesoscale Discussion	SPC	86 min
Jul 7, 11:41 AM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 7, 12:51 PM EDT	Special Weather Statement	OKX	39 min
Jul 7, 1:29 PM EDT	Special Weather Statement	OKX	46 min
Jul 7, 1:36 PM EDT	Mesoscale Discussion	SPC	84 min
Jul 7, 3:57 PM EDT	Mesoscale Discussion	SPC	2 hr
Jul 10, 11:31 PM EDT	Areal Flood Advisory	OKX	119 min
Jul 15, 3:50 PM EDT	Heat Advisory	OKX	3 days
Jul 15, 4:03 PM EDT	Areal Flood Advisory	OKX	57 min
Jul 15, 7:40 PM EDT	Special Weather Statement	OKX	65 min
Jul 18, 10:25 AM EDT	Mesoscale Discussion	SPC	2 hr
Jul 18, 12:20 PM EDT	Severe Thunderstorm Watch	SPC	9 hr
Jul 18, 2:00 PM EDT	Areal Flood Advisory	OKX	2 hr
Jul 18, 2:26 PM EDT	Severe Thunderstorm Warning	OKX	64 min
Jul 18, 2:46 PM EDT	Mesoscale Discussion	SPC	89 min
Jul 23, 4:32 AM EDT	Special Weather Statement	OKX	58 min
Jul 23, 5:32 AM EDT	Special Weather Statement	OKX	58 min
Jul 23, 12:32 PM EDT	Mesoscale Discussion	SPC	88 min
Jul 23, 1:24 PM EDT	Severe Thunderstorm Watch	SPC	10 hr
Jul 23, 4:01 PM EDT	Mesoscale Discussion	SPC	119 min
Jul 26, 7:08 AM EDT	Special Weather Statement	OKX	37 min
Jul 26, 7:51 AM EDT	Special Weather Statement	OKX	39 min
Jul 26, 8:05 AM EDT	Special Weather Statement	OKX	40 min
Jul 26, 8:47 AM EDT	Special Weather Statement	OKX	58 min
Jul 26, 3:37 PM EDT	Mesoscale Discussion	SPC	113 min
Jul 26, 3:57 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 26, 6:04 PM EDT	Mesoscale Discussion	SPC	86 min
Jul 26, 6:14 PM EDT	Severe Thunderstorm Warning	OKX	61 min
Jul 26, 7:13 PM EDT	Severe Thunderstorm Warning	OKX	44 min
Jul 26, 7:28 PM EDT	Mesoscale Discussion	SPC	92 min
Jul 28, 12:26 PM EDT	Mesoscale Discussion	SPC	2 hr
Jul 28, 1:36 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 28, 1:54 PM EDT	Special Weather Statement	OKX	66 min
Jul 28, 1:58 PM EDT	Areal Flood Advisory	OKX	92 min
Jul 28, 2:40 PM EDT	Flash Flood Warning	OKX	3 hr
Jul 28, 4:18 PM EDT	Mesoscale Discussion	SPC	87 min
Aug 1, 2:27 PM EDT	Special Weather Statement	OKX	48 min
Aug 5, 4:00 AM EDT	Flash Flood Watch	OKX	17 hr
Aug 5, 2:49 PM EDT	Mesoscale Discussion	SPC	86 min
Aug 5, 6:01 PM EDT	Severe Thunderstorm Warning	OKX	59 min
Aug 5, 6:38 PM EDT	Mesoscale Discussion	SPC	2 hr
Aug 9, 4:59 PM EDT	Special Weather Statement	OKX	61 min
Aug 10, 8:21 AM EDT	Mesoscale Discussion	SPC	2 hr
Aug 10, 10:49 AM EDT	Areal Flood Advisory	OKX	116 min
Aug 10, 11:02 AM EDT	Areal Flood Advisory	OKX	103 min
Aug 10, 12:53 PM EDT	Areal Flood Advisory	OKX	52 min
Aug 10, 5:08 PM EDT	Areal Flood Advisory	OKX	112 min
Aug 15, 4:21 PM EDT	Special Weather Statement	OKX	54 min
Aug 15, 4:38 PM EDT	Areal Flood Advisory	OKX	112 min
Aug 15, 4:48 PM EDT	Severe Thunderstorm Warning	OKX	57 min
Aug 15, 5:45 PM EDT	Flash Flood Warning	OKX	50 min
Aug 27, 4:47 PM EDT	Areal Flood Advisory	OKX	60 min
Sep 4, 4:39 PM EDT	Special Weather Statement	OKX	111 min
Sep 4, 5:31 PM EDT	Special Weather Statement	OKX	14 min
Sep 5, 1:24 AM EDT	Areal Flood Advisory	OKX	51 min
Sep 5, 9:43 AM EDT	Special Weather Statement	OKX	62 min
Sep 7, 4:35 PM EDT	Severe Thunderstorm Warning	OKX	22 min
Sep 8, 10:39 AM EDT	Mesoscale Discussion	SPC	2 hr
Sep 8, 11:18 AM EDT	Tornado Watch	SPC	10 hr
Sep 8, 11:22 AM EDT	Special Weather Statement	OKX	53 min
Sep 8, 11:27 AM EDT	Tornado Warning	OKX	33 min
Sep 8, 12:50 PM EDT	Special Weather Statement	OKX	55 min
Sep 8, 1:28 PM EDT	Tornado Warning	OKX	18 min
Sep 8, 1:30 PM EDT	Mesoscale Discussion	SPC	60 min
Sep 8, 3:51 PM EDT	Severe Thunderstorm Warning	OKX	84 min
Sep 8, 5:04 PM EDT	Severe Thunderstorm Warning	OKX	86 min
Sep 8, 5:16 PM EDT	Tornado Warning	OKX	29 min
Sep 17, 3:48 PM EDT	High Wind Watch	OKX	12 hr
Sep 18, 3:45 AM EDT	Wind Advisory	OKX	22 hr
Sep 18, 11:14 AM EDT	Mesoscale Discussion	SPC	91 min
Sep 18, 12:10 PM EDT	Tornado Watch	SPC	9 hr
Sep 18, 1:56 PM EDT	Mesoscale Discussion	SPC	64 min
Sep 18, 4:21 PM EDT	Mesoscale Discussion	SPC	114 min
Sep 18, 6:12 PM EDT	Special Weather Statement	OKX	2 hr
Sep 18, 6:38 PM EDT	Areal Flood Advisory	OKX	112 min
Sep 18, 6:48 PM EDT	Severe Thunderstorm Warning	OKX	57 min
Sep 18, 7:38 PM EDT	Severe Thunderstorm Warning	OKX	52 min
Sep 22, 3:09 PM EDT	Mesoscale Discussion	SPC	2 hr
Sep 22, 8:01 PM EDT	Special Weather Statement	OKX	59 min
Sep 22, 8:29 PM EDT	Special Weather Statement	OKX	61 min
Oct 2, 5:18 PM EDT	Areal Flood Advisory	OKX	87 min
Oct 2, 9:35 PM EDT	River Flood Warning	OKX	3 hr
Oct 3, 3:50 AM EDT	Dense Fog Advisory	OKX	6 hr
Oct 4, 4:17 PM EDT	Flash Flood Warning	OKX	118 min
Oct 4, 5:18 PM EDT	Special Weather Statement	OKX	42 min
Oct 11, 3:46 AM EDT	Freeze Watch	OKX	24 hr
Oct 12, 3:20 AM EDT	Freeze Warning	OKX	30 hr
Oct 19, 11:37 AM EDT	Areal Flood Advisory	OKX	2 hr
Oct 20, 6:43 AM EDT	Dense Fog Advisory	OKX	2 hr
Oct 27, 4:36 PM EDT	High Wind Watch	OKX	12 hr
Oct 27, 4:58 PM EDT	Flood Watch	OKX	52 hr
Oct 28, 4:35 AM EDT	High Wind Warning	OKX	47 hr
Oct 29, 12:47 PM EDT	Areal Flood Warning	OKX	12 hr
Oct 30, 12:09 AM EDT	Wind Advisory	OKX	12 hr
Nov 5, 4:20 PM EST	High Wind Watch	OKX	24 hr
Nov 6, 3:22 PM EST	Wind Advisory	OKX	33 hr
Nov 6, 3:27 PM EST	Winter Weather Advisory	OKX	38 hr
Nov 7, 12:55 PM EST	Mesoscale Discussion	SPC	3 hr
Nov 13, 1:29 AM EST	Special Weather Statement	OKX	2 hr
Nov 13, 3:02 AM EST	Special Weather Statement	OKX	88 min
Nov 27, 12:03 PM EST	Winter Weather Advisory	OKX	8 hr
Dec 2, 2:23 AM EST	Dense Fog Advisory	OKX	9 hr
Dec 7, 7:28 AM EST	Freezing Rain Advisory	OKX	7 hr
Dec 20, 8:59 PM EST	Wind Advisory	OKX	15 hr
Dec 21, 6:33 AM EST	Areal Flood Advisory	OKX	117 min
Dec 21, 8:29 AM EST	Areal Flood Advisory	OKX	91 min
Dec 21, 9:43 AM EST	Flash Flood Warning	OKX	2 hr
Dec 21, 11:47 AM EST	Areal Flood Advisory	OKX	118 min
Dec 21, 7:40 PM EST	Wind Advisory	OKX	20 hr
Dec 24, 3:45 AM EST	Winter Weather Advisory	OKX	30 hr
Dec 26, 4:15 AM EST	Winter Weather Advisory	OKX	21 hr
Dec 26, 4:40 AM EST	Flood Watch	OKX	21 hr
Dec 26, 2:14 PM EST	Mesoscale Discussion	SPC	6 hr
Dec 28, 3:44 PM EST	Winter Weather Advisory	OKX	28 hr
Dec 29, 3:37 PM EST	Wind Advisory	OKX	26 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

Product	Alerts
Severe storms
Severe Thunderstorm Warning	17
Tornado Warning	3
Severe Thunderstorm Watch	9
Tornado Watch	2
Mesoscale Discussion	39
Special Weather Statement	35
Flooding
Areal Flood Warning	1
Flash Flood Warning	5
River Flood Warning	1
Flash Flood Watch	1
Flood Watch	3
Areal Flood Advisory	26
Winter
Winter Storm Watch	1
Freezing Rain Advisory	2
Winter Weather Advisory	7
Heat
Heat Advisory	4
Cold
Freeze Warning	3
Freeze Watch	3
Frost Advisory	1
Wind and dust
High Wind Warning	1
High Wind Watch	3
Wind Advisory	10
Fog and smoke
Dense Fog Advisory	5

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2011 2013

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.