Alert archive / Virginia / Pittsylvania County

Weather alerts in Pittsylvania County, Virginia, 2015

169 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Pittsylvania County and its neighbors

Each county as a circle sized by its count in 2015. Tap one for its archive.

Alerts: 169
Warnings: 43
Watches: 16
Advisories: 24
Busiest month: June59 alerts
Busiest day: June 20, 20158 alerts

Over time

By month

Warning verification

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

Pittsylvania County, 2015

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	32	28	13%	36	89%	21 min
Flash flood warnings	0			0

Each office's whole area, 2015

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Blacksburg, VA: tornado warnings	1	0	100%	0
NWS Blacksburg, VA: severe thunderstorm warnings	146	122	16%	435	76%	23 min
NWS Blacksburg, VA: flash flood warnings	30	18	40%	55	84%	80 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 6, 2:40 PM EST	Wind Chill Advisory	RNK	45 hr
Jan 11, 2:29 PM EST	Freezing Rain Advisory	RNK	21 hr
Jan 13, 3:13 AM EST	Winter Weather Advisory	RNK	33 hr
Feb 14, 4:28 AM EST	Wind Advisory	RNK	32 hr
Feb 14, 4:29 AM EST	Wind Chill Advisory	RNK	48 hr
Feb 15, 5:01 AM EST	Winter Storm Watch	RNK	11 hr
Feb 15, 3:46 PM EST	Winter Storm Warning	RNK	37 hr
Feb 16, 4:30 PM EST	Mesoscale Discussion	SPC	6 hr
Feb 18, 4:10 AM EST	Wind Chill Advisory	RNK	54 hr
Feb 19, 3:24 PM EST	Winter Storm Watch	RNK	14 hr
Feb 20, 5:05 AM EST	Winter Weather Advisory	RNK	49 hr
Feb 24, 3:40 PM EST	Winter Storm Watch	RNK	11 hr
Feb 24, 11:28 PM EST	Winter Storm Warning	RNK	34 hr
Feb 26, 12:56 AM EST	Mesoscale Discussion	SPC	6 hr
Feb 28, 3:16 PM EST	Winter Weather Advisory	RNK	24 hr
Mar 4, 4:13 AM EST	Winter Weather Advisory	RNK	39 hr
Apr 8, 6:24 PM EDT	Mesoscale Discussion	SPC	2 hr
Apr 8, 6:35 PM EDT	Special Weather Statement	RNK	55 min
Apr 9, 4:02 AM EDT	Special Weather Statement	RNK	43 min
Apr 9, 4:52 AM EDT	Special Weather Statement	RNK	53 min
Apr 10, 4:04 AM EDT	Dense Fog Advisory	RNK	5 hr
Apr 10, 2:36 PM EDT	Mesoscale Discussion	SPC	54 min
Apr 14, 4:29 PM EDT	Mesoscale Discussion	SPC	46 min
Apr 20, 1:54 PM EDT	Mesoscale Discussion	SPC	3 hr
Apr 20, 2:55 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Apr 20, 3:43 PM EDT	Severe Thunderstorm Warning	RNK	34 min
Apr 20, 6:27 PM EDT	Mesoscale Discussion	SPC	93 min
Apr 20, 11:42 PM EDT	River Flood Warning	RNK	23 hr
Apr 22, 12:32 PM EDT	Mesoscale Discussion	SPC	118 min
Apr 30, 2:36 PM EDT	Special Weather Statement	RNK	24 min
Apr 30, 3:19 PM EDT	Special Weather Statement	RNK	26 min
Apr 30, 5:30 PM EDT	Special Weather Statement	RNK	45 min
May 6, 7:24 PM EDT	Special Weather Statement	RNK	51 min
May 10, 2:46 PM EDT	Special Weather Statement	RNK	59 min
May 12, 1:52 PM EDT	Mesoscale Discussion	SPC	2 hr
May 28, 6:20 PM EDT	Areal Flood Advisory	RNK	6 hr
May 29, 3:37 PM EDT	Special Weather Statement	RNK	53 min
May 31, 8:13 PM EDT	Special Weather Statement	RNK	47 min
May 31, 8:41 PM EDT	Severe Thunderstorm Warning	RNK	49 min
Jun 1, 6:44 PM EDT	Special Weather Statement	RNK	46 min
Jun 1, 7:58 PM EDT	Special Weather Statement	RNK	47 min
Jun 1, 8:48 PM EDT	Special Weather Statement	RNK	42 min
Jun 2, 12:46 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 2, 6:44 PM EDT	Special Weather Statement	RNK	46 min
Jun 2, 7:33 PM EDT	Areal Flood Advisory	RNK	3 hr
Jun 2, 9:46 PM EDT	Special Weather Statement	RNK	59 min
Jun 2, 10:26 PM EDT	Areal Flood Warning	RNK	6 hr
Jun 8, 3:19 PM EDT	Severe Thunderstorm Warning	RNK	56 min
Jun 8, 6:24 PM EDT	Mesoscale Discussion	SPC	96 min
Jun 8, 6:52 PM EDT	Special Weather Statement	RNK	53 min
Jun 8, 9:23 PM EDT	Special Weather Statement	RNK	22 min
Jun 8, 9:53 PM EDT	Special Weather Statement	RNK	37 min
Jun 13, 6:53 PM EDT	Special Weather Statement	RNK	52 min
Jun 13, 7:34 PM EDT	Areal Flood Advisory	RNK	3 hr
Jun 13, 7:38 PM EDT	Special Weather Statement	RNK	67 min
Jun 14, 4:06 PM EDT	Special Weather Statement	RNK	24 min
Jun 14, 4:16 PM EDT	Special Weather Statement	RNK	59 min
Jun 16, 5:52 PM EDT	Special Weather Statement	RNK	53 min
Jun 16, 6:37 PM EDT	Special Weather Statement	RNK	38 min
Jun 16, 6:42 PM EDT	Special Weather Statement	RNK	33 min
Jun 17, 12:40 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 17, 5:59 PM EDT	Severe Thunderstorm Warning	RNK	61 min
Jun 17, 6:36 PM EDT	Severe Thunderstorm Warning	RNK	54 min
Jun 17, 6:52 PM EDT	Severe Thunderstorm Warning	RNK	53 min
Jun 17, 11:42 PM EDT	Special Weather Statement	RNK	63 min
Jun 18, 2:21 AM EDT	Areal Flood Advisory	RNK	3 hr
Jun 18, 6:15 PM EDT	Severe Thunderstorm Warning	RNK	60 min
Jun 19, 5:29 PM EDT	Severe Thunderstorm Warning	RNK	61 min
Jun 19, 6:04 PM EDT	Severe Thunderstorm Warning	RNK	56 min
Jun 19, 6:26 PM EDT	Special Weather Statement	RNK	64 min
Jun 20, 1:36 PM EDT	Mesoscale Discussion	SPC	114 min
Jun 20, 3:26 PM EDT	Severe Thunderstorm Watch	SPC	10 hr
Jun 20, 4:10 PM EDT	Special Weather Statement	RNK	65 min
Jun 20, 4:16 PM EDT	Severe Thunderstorm Warning	RNK	40 min
Jun 20, 5:29 PM EDT	Special Weather Statement	RNK	46 min
Jun 20, 5:37 PM EDT	Severe Thunderstorm Warning	RNK	38 min
Jun 20, 6:13 PM EDT	Special Weather Statement	RNK	62 min
Jun 20, 6:24 PM EDT	Mesoscale Discussion	SPC	96 min
Jun 21, 3:23 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 21, 5:56 PM EDT	Severe Thunderstorm Warning	RNK	64 min
Jun 21, 6:39 PM EDT	Severe Thunderstorm Warning	RNK	66 min
Jun 22, 5:51 PM EDT	Severe Thunderstorm Warning	RNK	25 min
Jun 25, 3:42 PM EDT	Mesoscale Discussion	SPC	93 min
Jun 25, 4:29 PM EDT	Severe Thunderstorm Warning	RNK	46 min
Jun 25, 4:50 PM EDT	Severe Thunderstorm Watch	SPC	9 hr
Jun 25, 5:12 PM EDT	Severe Thunderstorm Warning	RNK	63 min
Jun 25, 6:01 PM EDT	Severe Thunderstorm Warning	RNK	59 min
Jun 25, 7:53 PM EDT	Mesoscale Discussion	SPC	97 min
Jun 27, 12:44 AM EDT	Special Weather Statement	RNK	61 min
Jun 27, 2:06 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 27, 6:23 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 27, 6:59 PM EDT	Severe Thunderstorm Warning	RNK	51 min
Jun 27, 7:21 PM EDT	Areal Flood Advisory	RNK	4 hr
Jun 27, 7:32 PM EDT	Severe Thunderstorm Warning	RNK	58 min
Jun 30, 12:55 PM EDT	Mesoscale Discussion	SPC	3 hr
Jun 30, 2:22 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 30, 11:18 PM EDT	Special Weather Statement	RNK	57 min
Jul 3, 4:55 PM EDT	Special Weather Statement	RNK	50 min
Jul 4, 3:46 PM EDT	Special Weather Statement	RNK	29 min
Jul 4, 11:07 PM EDT	Areal Flood Advisory	RNK	3 hr
Jul 5, 2:50 PM EDT	Severe Thunderstorm Warning	RNK	70 min
Jul 5, 3:53 PM EDT	Severe Thunderstorm Warning	RNK	54 min
Jul 5, 7:03 PM EDT	Special Weather Statement	RNK	27 min
Jul 5, 7:29 PM EDT	Special Weather Statement	RNK	31 min
Jul 13, 1:39 AM EDT	Severe Thunderstorm Warning	RNK	42 min
Jul 13, 6:23 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 13, 6:55 PM EDT	Special Weather Statement	RNK	65 min
Jul 13, 8:06 PM EDT	Mesoscale Discussion	SPC	84 min
Jul 13, 8:45 PM EDT	Severe Thunderstorm Warning	RNK	60 min
Jul 13, 9:15 PM EDT	Severe Thunderstorm Warning	RNK	75 min
Jul 14, 6:10 PM EDT	Mesoscale Discussion	SPC	2 hr
Jul 14, 6:44 PM EDT	Severe Thunderstorm Watch	SPC	4 hr
Jul 14, 9:26 PM EDT	Mesoscale Discussion	SPC	94 min
Jul 21, 2:38 PM EDT	Special Weather Statement	RNK	37 min
Jul 28, 3:35 PM EDT	Special Weather Statement	RNK	40 min
Jul 28, 4:23 PM EDT	Special Weather Statement	RNK	37 min
Jul 29, 4:38 PM EDT	Special Weather Statement	RNK	37 min
Jul 29, 5:16 PM EDT	Special Weather Statement	RNK	29 min
Jul 29, 5:47 PM EDT	Special Weather Statement	RNK	28 min
Jul 30, 8:40 PM EDT	Special Weather Statement	RNK	50 min
Aug 5, 10:16 PM EDT	Special Weather Statement	RNK	59 min
Aug 6, 11:29 PM EDT	Areal Flood Advisory	RNK	3 hr
Aug 10, 9:42 PM EDT	Special Weather Statement	RNK	63 min
Aug 11, 1:30 PM EDT	Mesoscale Discussion	SPC	3 hr
Aug 11, 2:52 PM EDT	Severe Thunderstorm Warning	RNK	53 min
Aug 11, 3:38 PM EDT	Special Weather Statement	RNK	67 min
Aug 11, 4:12 PM EDT	Severe Thunderstorm Warning	RNK	63 min
Aug 11, 4:22 PM EDT	Severe Thunderstorm Warning	RNK	68 min
Sep 4, 2:22 PM EDT	Special Weather Statement	RNK	53 min
Sep 4, 3:12 PM EDT	Severe Thunderstorm Warning	RNK	63 min
Sep 4, 3:52 PM EDT	Severe Thunderstorm Warning	RNK	53 min
Sep 4, 4:06 PM EDT	Severe Thunderstorm Warning	RNK	54 min
Sep 4, 4:49 PM EDT	Severe Thunderstorm Warning	RNK	56 min
Sep 9, 8:00 PM EDT	Special Weather Statement	RNK	15 min
Sep 9, 8:17 PM EDT	Special Weather Statement	RNK	58 min
Sep 9, 9:17 PM EDT	Special Weather Statement	RNK	58 min
Sep 10, 5:40 PM EDT	Special Weather Statement	RNK	65 min
Sep 12, 3:20 AM EDT	Severe Thunderstorm Warning	RNK	55 min
Sep 12, 2:28 PM EDT	Mesoscale Discussion	SPC	2 hr
Sep 28, 5:30 PM EDT	Special Weather Statement	RNK	60 min
Sep 28, 6:29 PM EDT	Special Weather Statement	RNK	61 min
Sep 28, 7:32 PM EDT	Special Weather Statement	RNK	58 min
Sep 29, 4:44 AM EDT	Flash Flood Watch	RNK	25 hr
Sep 29, 4:02 PM EDT	River Flood Warning	RNK	5 days
Oct 1, 5:05 AM EDT	Flash Flood Watch	RNK	70 hr
Oct 2, 4:16 PM EDT	Wind Advisory	RNK	68 hr
Oct 3, 4:44 AM EDT	Special Weather Statement	RNK	2 hr
Oct 3, 7:58 PM EDT	Special Weather Statement	RNK	2 hr
Oct 17, 3:31 AM EDT	Freeze Watch	RNK	35 hr
Oct 17, 1:04 PM EDT	Frost Advisory	RNK	20 hr
Oct 28, 2:18 PM EDT	Special Weather Statement	RNK	27 min
Oct 28, 2:49 PM EDT	Special Weather Statement	RNK	26 min
Nov 10, 5:29 AM EST	Areal Flood Advisory	RNK	4 hr
Nov 10, 7:31 AM EST	River Flood Warning	RNK	14 hr
Nov 10, 10:11 AM EST	River Flood Warning	RNK	31 hr
Nov 19, 3:01 AM EST	Special Weather Statement	RNK	74 min
Dec 9, 2:06 AM EST	Dense Fog Advisory	RNK	9 hr
Dec 12, 2:42 AM EST	Dense Fog Advisory	RNK	6 hr
Dec 22, 3:28 PM EST	Flash Flood Watch	RNK	28 hr
Dec 22, 7:12 PM EST	Dense Fog Advisory	RNK	18 hr
Dec 23, 4:30 PM EST	Special Weather Statement	RNK	60 min
Dec 24, 4:06 AM EST	Flash Flood Watch	RNK	42 hr
Dec 24, 7:33 AM EST	Special Weather Statement	RNK	57 min
Dec 24, 9:01 AM EST	River Flood Warning	RNK	49 hr
Dec 24, 11:47 AM EST	Areal Flood Warning	RNK	9 hr
Dec 24, 8:31 PM EST	Areal Flood Warning	RNK	3 hr
Dec 29, 10:12 PM EST	Dense Fog Advisory	RNK	8 hr
Dec 30, 3:45 AM EST	Flood Watch	RNK	14 hr
Dec 30, 10:21 AM EST	Areal Flood Warning	RNK	6 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	32
Severe Thunderstorm Watch	7
Mesoscale Discussion	24
Special Weather Statement	62
Flooding
Areal Flood Warning	4
River Flood Warning	5
Flash Flood Watch	4
Flood Watch	1
Areal Flood Advisory	8
Winter
Winter Storm Warning	2
Winter Storm Watch	3
Freezing Rain Advisory	1
Winter Weather Advisory	4
Cold
Freeze Watch	1
Frost Advisory	1
Wind Chill Advisory	3
Wind and dust
Wind Advisory	2
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 2014 2016

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.