Alert archive / Virginia / Powhatan County

Weather alerts in Powhatan County, Virginia, 2013

126 weather alerts in 2013, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Powhatan County and its neighbors

Each county as a circle sized by its count in 2013. Tap one for its archive.

Alerts: 126
Warnings: 17
Watches: 17
Advisories: 16
Busiest month: June34 alerts
Busiest day: June 13, 20137 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 1 tornado warnings covering Powhatan County in 2013 had a tornado report inside them.

Powhatan County, 2013

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	1	0	100%	0
Severe thunderstorm warnings	10	9	10%	4	100%	8 min
Flash flood warnings	0			0

Each office's whole area, 2013

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Wakefield, VA: tornado warnings	18	2	89%	3	100%	16 min
NWS Wakefield, VA: severe thunderstorm warnings	97	78	20%	287	84%	21 min
NWS Wakefield, VA: flash flood warnings	14	10	29%	31	97%	59 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 11, 7:00 PM EST	Dense Fog Advisory	AKQ	16 hr
Jan 12, 6:46 PM EST	Dense Fog Advisory	AKQ	17 hr
Jan 16, 2:35 PM EST	Winter Storm Watch	AKQ	14 hr
Jan 17, 4:15 AM EST	Winter Storm Warning	AKQ	23 hr
Jan 17, 6:54 PM EST	Mesoscale Discussion	SPC	4 hr
Jan 20, 11:55 PM EST	River Flood Warning	AKQ	19 hr
Jan 27, 3:01 PM EST	Freezing Rain Advisory	AKQ	18 hr
Jan 30, 4:18 AM EST	Wind Advisory	AKQ	26 hr
Jan 30, 12:54 PM EST	Mesoscale Discussion	SPC	96 min
Jan 30, 4:06 PM EST	Mesoscale Discussion	SPC	114 min
Jan 30, 8:21 PM EST	Tornado Watch	SPC	6 hr
Jan 30, 9:38 PM EST	Mesoscale Discussion	SPC	67 min
Jan 30, 10:27 PM EST	Special Weather Statement	AKQ	78 min
Jan 31, 12:01 AM EST	Special Weather Statement	AKQ	74 min
Mar 4, 3:45 AM EST	Winter Storm Watch	AKQ	48 hr
Mar 5, 8:41 PM EST	Winter Weather Advisory	AKQ	23 hr
Mar 16, 3:55 PM EDT	Mesoscale Discussion	SPC	95 min
Mar 16, 5:54 PM EDT	Special Weather Statement	AKQ	36 min
Mar 16, 6:17 PM EDT	Severe Thunderstorm Warning	AKQ	43 min
Mar 24, 2:41 PM EDT	Winter Weather Advisory	AKQ	20 hr
Apr 12, 1:58 AM EDT	Mesoscale Discussion	SPC	92 min
Apr 12, 5:05 AM EDT	Mesoscale Discussion	SPC	85 min
Apr 12, 5:21 AM EDT	Tornado Watch	SPC	3 hr
Apr 12, 5:29 AM EDT	Special Weather Statement	AKQ	61 min
Apr 12, 6:21 AM EDT	Special Weather Statement	AKQ	54 min
Apr 19, 1:27 PM EDT	Mesoscale Discussion	SPC	63 min
Apr 19, 2:31 PM EDT	Tornado Watch	SPC	7 hr
Apr 19, 4:36 PM EDT	Mesoscale Discussion	SPC	114 min
Apr 19, 5:54 PM EDT	Severe Thunderstorm Warning	AKQ	51 min
Apr 19, 6:05 PM EDT	Severe Thunderstorm Warning	AKQ	40 min
Apr 19, 6:23 PM EDT	Severe Thunderstorm Warning	AKQ	52 min
May 7, 1:56 PM EDT	Mesoscale Discussion	SPC	64 min
May 8, 9:44 AM EDT	River Flood Warning	AKQ	25 hr
May 9, 12:14 AM EDT	Dense Fog Advisory	AKQ	8 hr
May 11, 1:44 PM EDT	Mesoscale Discussion	SPC	91 min
May 11, 7:11 PM EDT	Mesoscale Discussion	SPC	64 min
May 11, 9:49 PM EDT	Special Weather Statement	AKQ	71 min
May 13, 3:54 PM EDT	Frost Advisory	AKQ	15 hr
May 16, 1:57 PM EDT	Mesoscale Discussion	SPC	3 hr
May 16, 4:36 PM EDT	Special Weather Statement	AKQ	54 min
May 23, 3:37 PM EDT	Mesoscale Discussion	SPC	53 min
May 23, 10:33 PM EDT	Special Weather Statement	AKQ	42 min
May 28, 4:01 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 2, 4:13 PM EDT	Special Weather Statement	AKQ	62 min
Jun 2, 4:43 PM EDT	Special Weather Statement	AKQ	47 min
Jun 2, 6:42 PM EDT	Special Weather Statement	AKQ	63 min
Jun 6, 3:55 PM EDT	Flood Watch	AKQ	31 hr
Jun 7, 11:34 AM EDT	Flash Flood Watch	AKQ	11 hr
Jun 10, 2:57 AM EDT	Flash Flood Watch	AKQ	21 hr
Jun 10, 12:56 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 10, 2:02 PM EDT	Tornado Watch	SPC	10 hr
Jun 10, 4:38 PM EDT	Mesoscale Discussion	SPC	97 min
Jun 10, 6:28 PM EDT	Tornado Warning	AKQ	32 min
Jun 10, 7:08 PM EDT	Special Weather Statement	AKQ	67 min
Jun 13, 2:40 AM EDT	Mesoscale Discussion	SPC	2 hr
Jun 13, 11:38 AM EDT	Mesoscale Discussion	SPC	67 min
Jun 13, 1:53 PM EDT	Mesoscale Discussion	SPC	97 min
Jun 13, 2:08 PM EDT	Severe Thunderstorm Watch PDS	SPC	8 hr
Jun 13, 3:01 PM EDT	Severe Thunderstorm Warning	AKQ	29 min
Jun 13, 3:30 PM EDT	Severe Thunderstorm Warning	AKQ	45 min
Jun 13, 4:22 PM EDT	Mesoscale Discussion	SPC	53 min
Jun 17, 5:44 PM EDT	Special Weather Statement	AKQ	46 min
Jun 18, 2:44 PM EDT	Special Weather Statement	AKQ	46 min
Jun 26, 1:19 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 26, 2:55 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 26, 4:38 PM EDT	Mesoscale Discussion	SPC	97 min
Jun 26, 4:50 PM EDT	Special Weather Statement	AKQ	55 min
Jun 26, 5:15 PM EDT	Severe Thunderstorm Warning	AKQ	45 min
Jun 26, 5:22 PM EDT	Special Weather Statement	AKQ	53 min
Jun 28, 2:51 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 28, 4:11 PM EDT	Severe Thunderstorm Warning	AKQ	49 min
Jun 28, 4:42 PM EDT	Mesoscale Discussion	SPC	93 min
Jun 30, 11:48 AM EDT	Mesoscale Discussion	SPC	2 hr
Jun 30, 3:56 PM EDT	Flash Flood Watch	AKQ	54 hr
Jun 30, 6:02 PM EDT	Special Weather Statement	AKQ	58 min
Jun 30, 6:53 PM EDT	Special Weather Statement	AKQ	67 min
Jun 30, 7:50 PM EDT	Areal Flood Advisory	AKQ	2 hr
Jul 1, 9:10 AM EDT	Special Weather Statement	AKQ	65 min
Jul 10, 5:29 PM EDT	Special Weather Statement	AKQ	46 min
Jul 10, 6:23 PM EDT	Areal Flood Advisory	AKQ	2 hr
Jul 10, 9:15 PM EDT	Special Weather Statement	AKQ	45 min
Jul 10, 9:50 PM EDT	Areal Flood Advisory	AKQ	2 hr
Jul 11, 1:42 PM EDT	Flash Flood Watch	AKQ	32 hr
Jul 12, 10:28 AM EDT	River Flood Warning	AKQ	47 hr
Jul 17, 2:22 PM EDT	Mesoscale Discussion	SPC	83 min
Jul 18, 3:29 AM EDT	Heat Advisory	AKQ	15 hr
Jul 20, 4:01 PM EDT	Special Weather Statement	AKQ	59 min
Jul 20, 6:13 PM EDT	Special Weather Statement	AKQ	47 min
Jul 21, 4:51 PM EDT	Special Weather Statement	AKQ	54 min
Jul 21, 5:23 PM EDT	Areal Flood Advisory	AKQ	2 hr
Jul 28, 4:30 PM EDT	Special Weather Statement	AKQ	60 min
Jul 28, 5:49 PM EDT	Special Weather Statement	AKQ	41 min
Jul 31, 2:46 PM EDT	Special Weather Statement	AKQ	44 min
Jul 31, 3:33 PM EDT	Special Weather Statement	AKQ	57 min
Aug 1, 6:11 PM EDT	Special Weather Statement	AKQ	44 min
Aug 1, 6:57 PM EDT	Special Weather Statement	AKQ	38 min
Aug 10, 11:56 AM EDT	Mesoscale Discussion	SPC	94 min
Aug 10, 12:56 PM EDT	Special Weather Statement	AKQ	44 min
Aug 10, 1:15 PM EDT	Severe Thunderstorm Warning	AKQ	45 min
Aug 10, 1:22 PM EDT	Mesoscale Discussion	SPC	53 min
Aug 10, 1:48 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
Aug 10, 4:17 PM EDT	Mesoscale Discussion	SPC	58 min
Aug 11, 3:38 PM EDT	Mesoscale Discussion	SPC	67 min
Aug 22, 2:26 PM EDT	Mesoscale Discussion	SPC	3 hr
Aug 23, 11:29 AM EDT	Special Weather Statement	AKQ	61 min
Aug 23, 11:50 AM EDT	Severe Thunderstorm Warning	AKQ	40 min
Aug 23, 1:14 PM EDT	Mesoscale Discussion	SPC	3 hr
Aug 31, 6:45 PM EDT	Special Weather Statement	AKQ	60 min
Aug 31, 7:36 PM EDT	Special Weather Statement	AKQ	54 min
Sep 1, 6:42 PM EDT	Special Weather Statement	AKQ	63 min
Sep 21, 6:37 PM EDT	Special Weather Statement	AKQ	53 min
Sep 21, 7:32 PM EDT	Mesoscale Discussion	SPC	2 hr
Oct 7, 8:10 AM EDT	Mesoscale Discussion	SPC	2 hr
Oct 7, 10:11 AM EDT	Special Weather Statement	AKQ	69 min
Oct 7, 11:19 AM EDT	Special Weather Statement	AKQ	41 min
Oct 24, 4:44 PM EDT	Freeze Watch	AKQ	10 hr
Oct 25, 3:01 AM EDT	Freeze Warning	AKQ	30 hr
Nov 17, 4:11 AM EST	Dense Fog Advisory	AKQ	6 hr
Nov 25, 3:37 PM EST	Winter Weather Advisory	AKQ	19 hr
Nov 26, 10:05 PM EST	Special Weather Statement	AKQ	55 min
Dec 6, 3:20 PM EST	Winter Storm Watch	AKQ	24 hr
Dec 7, 3:17 PM EST	Winter Storm Warning	AKQ	40 hr
Dec 8, 11:05 AM EST	Mesoscale Discussion	SPC	3 hr
Dec 9, 3:45 PM EST	Winter Weather Advisory	AKQ	20 hr
Dec 22, 10:00 AM EST	Mesoscale Discussion	SPC	60 min
Dec 22, 10:44 AM EST	Special Weather Statement	AKQ	61 min

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	10
Tornado Warning	1
Severe Thunderstorm Watch	4
Tornado Watch	4
Mesoscale Discussion	36
Special Weather Statement	40
Flooding
River Flood Warning	3
Flash Flood Watch	4
Flood Watch	1
Areal Flood Advisory	4
Winter
Winter Storm Warning	2
Winter Storm Watch	3
Freezing Rain Advisory	1
Winter Weather Advisory	4
Heat
Heat Advisory	1
Cold
Freeze Warning	1
Freeze Watch	1
Frost Advisory	1
Wind and dust
Wind Advisory	1
Fog and smoke
Dense Fog Advisory	4

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2012 2014

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.