Alert archive / Virginia / Franklin County

Weather alerts in Franklin County, Virginia, 2010

189 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Franklin County and its neighbors

Each county as a circle sized by its count in 2010. Tap one for its archive.

Alerts: 189
Warnings: 69
Watches: 32
Advisories: 23
Busiest month: August31 alerts
Busiest day: August 5, 201012 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 2 tornado warnings covering Franklin County in 2010 had a tornado report inside them.

Franklin County, 2010

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	2	0	100%	0
Severe thunderstorm warnings	50	42	16%	48	75%	16 min
Flash flood warnings	6	4	33%	22	95%	128 min

Each office's whole area, 2010

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Blacksburg, VA: tornado warnings	31	2	94%	7	43%	3 min
NWS Blacksburg, VA: severe thunderstorm warnings	344	275	20%	845	76%	23 min
NWS Blacksburg, VA: flash flood warnings	111	62	44%	205	90%	130 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, 3:04 PM EST	Winter Weather Advisory	RNK	40 hr
Jan 16, 4:52 AM EST	Flood Watch	RNK	35 hr
Jan 18, 11:47 AM EST	Flash Flood Watch	RNK	8 days
Jan 20, 3:26 PM EST	Winter Storm Watch	RNK	14 hr
Jan 21, 5:18 AM EST	Winter Storm Warning	RNK	31 hr
Jan 23, 3:57 PM EST	Wind Advisory	RNK	39 hr
Jan 24, 10:26 PM EST	Flash Flood Warning	RNK	6 hr
Jan 25, 4:27 AM EST	Areal Flood Warning	RNK	6 hr
Jan 27, 3:57 PM EST	Winter Storm Watch	RNK	36 hr
Jan 28, 4:18 PM EST	Winter Storm Warning	RNK	50 hr
Jan 30, 3:56 AM EST	Mesoscale Discussion	SPC	5 hr
Feb 1, 3:53 PM EST	Winter Weather Advisory	RNK	32 hr
Feb 3, 3:53 PM EST	Winter Storm Watch	RNK	25 hr
Feb 4, 4:23 AM EST	Winter Storm Warning	RNK	59 hr
Feb 5, 7:06 AM EST	Mesoscale Discussion	SPC	6 hr
Feb 5, 12:55 PM EST	Mesoscale Discussion	SPC	4 hr
Feb 8, 4:16 PM EST	Winter Weather Advisory	RNK	3 days
Feb 9, 3:56 AM EST	High Wind Watch	RNK	18 hr
Feb 9, 1:22 PM EST	High Wind Warning	RNK	40 hr
Feb 14, 3:35 PM EST	Winter Weather Advisory	RNK	5 days
Feb 24, 3:44 PM EST	High Wind Warning	RNK	60 hr
Mar 2, 5:08 AM EST	Winter Weather Advisory	RNK	23 hr
Mar 9, 3:33 PM EST	Flood Watch	RNK	4 days
Mar 22, 5:31 AM EDT	Special Weather Statement	RNK	59 min
Mar 28, 4:14 AM EDT	Flood Watch	RNK	26 hr
Mar 28, 5:43 PM EDT	Special Weather Statement	RNK	47 min
Mar 28, 6:43 PM EDT	Special Weather Statement	RNK	17 min
Apr 5, 6:12 PM EDT	Severe Thunderstorm Warning	RNK	30 min
Apr 8, 4:33 PM EDT	Special Weather Statement	RNK	57 min
Apr 8, 5:14 PM EDT	Severe Thunderstorm Warning	RNK	61 min
Apr 8, 6:40 PM EDT	Severe Thunderstorm Warning	RNK	48 min
Apr 8, 7:09 PM EDT	Severe Thunderstorm Warning	RNK	45 min
Apr 8, 7:12 PM EDT	Tornado Watch	SPC	3 hr
Apr 10, 4:05 PM EDT	Frost Advisory	RNK	16 hr
Apr 16, 1:04 PM EDT	Red Flag Warning	RNK	7 hr
Apr 17, 5:10 AM EDT	Red Flag Warning	RNK	16 hr
Apr 18, 3:04 PM EDT	Frost Advisory	RNK	18 hr
Apr 25, 2:53 PM EDT	Mesoscale Discussion	SPC	67 min
Apr 28, 3:12 PM EDT	Frost Advisory	RNK	18 hr
May 12, 1:53 PM EDT	Mesoscale Discussion	SPC	67 min
May 12, 2:20 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
May 14, 6:11 AM EDT	Dense Fog Advisory	RNK	3 hr
May 14, 2:29 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
May 14, 2:43 PM EDT	Severe Thunderstorm Warning	RNK	62 min
May 14, 8:35 PM EDT	Severe Thunderstorm Warning	RNK	38 min
May 14, 8:42 PM EDT	Severe Thunderstorm Warning	RNK	31 min
May 14, 9:41 PM EDT	Severe Thunderstorm Warning	RNK	41 min
May 15, 7:12 PM EDT	Special Weather Statement	RNK	63 min
May 15, 7:49 PM EDT	Severe Thunderstorm Warning	RNK	56 min
May 16, 4:19 AM EDT	Flash Flood Watch	RNK	48 hr
May 16, 10:05 PM EDT	Special Weather Statement	RNK	40 min
May 23, 1:03 PM EDT	Mesoscale Discussion	SPC	57 min
May 23, 6:01 PM EDT	Severe Thunderstorm Warning	RNK	59 min
May 28, 4:28 AM EDT	Flash Flood Watch	RNK	22 hr
May 28, 1:52 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
May 28, 5:15 PM EDT	Special Weather Statement	RNK	60 min
May 28, 5:28 PM EDT	Severe Thunderstorm Warning	RNK	62 min
May 28, 6:22 PM EDT	Severe Thunderstorm Warning	RNK	53 min
May 28, 7:15 PM EDT	Severe Thunderstorm Warning	RNK	60 min
May 30, 1:14 PM EDT	Special Weather Statement	RNK	61 min
Jun 1, 5:23 PM EDT	Special Weather Statement	RNK	22 min
Jun 3, 3:43 PM EDT	Severe Thunderstorm Warning	RNK	62 min
Jun 4, 2:34 PM EDT	Severe Thunderstorm Warning	RNK	56 min
Jun 4, 3:27 PM EDT	Severe Thunderstorm Warning	RNK	63 min
Jun 6, 5:28 PM EDT	Special Weather Statement	RNK	62 min
Jun 9, 10:35 AM EDT	Flash Flood Watch	RNK	10 hr
Jun 12, 12:37 PM EDT	Severe Thunderstorm Warning	RNK	53 min
Jun 12, 1:27 PM EDT	Severe Thunderstorm Warning	RNK	49 min
Jun 12, 1:33 PM EDT	Severe Thunderstorm Warning	RNK	57 min
Jun 13, 12:27 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 14, 2:01 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 14, 3:59 PM EDT	Severe Thunderstorm Warning	RNK	61 min
Jun 14, 4:25 PM EDT	Mesoscale Discussion	SPC	95 min
Jun 15, 3:42 PM EDT	Special Weather Statement	RNK	63 min
Jun 19, 9:00 PM EDT	Special Weather Statement	RNK	60 min
Jun 19, 10:10 PM EDT	Special Weather Statement	RNK	65 min
Jun 19, 10:22 PM EDT	Severe Thunderstorm Warning	RNK	53 min
Jun 22, 2:26 PM EDT	Special Weather Statement	RNK	34 min
Jun 22, 2:43 PM EDT	Severe Thunderstorm Warning	RNK	31 min
Jun 22, 2:45 PM EDT	Special Weather Statement	RNK	30 min
Jun 24, 2:34 PM EDT	Mesoscale Discussion	SPC	116 min
Jun 24, 3:09 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 28, 1:29 PM EDT	Mesoscale Discussion	SPC	61 min
Jun 28, 5:54 PM EDT	Special Weather Statement	RNK	36 min
Jun 28, 6:23 PM EDT	Severe Thunderstorm Warning	RNK	67 min
Jul 8, 8:57 PM EDT	Special Weather Statement	RNK	63 min
Jul 8, 9:23 PM EDT	Severe Thunderstorm Warning	RNK	26 min
Jul 8, 10:01 PM EDT	Severe Thunderstorm Warning	RNK	59 min
Jul 9, 4:05 PM EDT	Special Weather Statement	RNK	55 min
Jul 9, 4:19 PM EDT	Flash Flood Watch	RNK	7 hr
Jul 9, 5:20 PM EDT	Special Weather Statement	RNK	40 min
Jul 12, 11:26 AM EDT	Mesoscale Discussion	SPC	94 min
Jul 13, 2:13 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 13, 4:51 PM EDT	Mesoscale Discussion	SPC	84 min
Jul 13, 5:50 PM EDT	Severe Thunderstorm Warning	RNK	51 min
Jul 16, 2:11 PM EDT	Severe Thunderstorm Warning	RNK	64 min
Jul 16, 2:36 PM EDT	Severe Thunderstorm Warning	RNK	54 min
Jul 16, 2:57 PM EDT	Severe Thunderstorm Warning	RNK	53 min
Jul 17, 10:29 AM EDT	Mesoscale Discussion	SPC	2 hr
Jul 17, 12:31 PM EDT	Severe Thunderstorm Warning	RNK	59 min
Jul 18, 12:16 PM EDT	Special Weather Statement	RNK	44 min
Jul 18, 4:04 PM EDT	Special Weather Statement	RNK	56 min
Jul 18, 6:29 PM EDT	Severe Thunderstorm Warning	RNK	61 min
Jul 20, 12:49 PM EDT	Mesoscale Discussion	SPC	86 min
Jul 20, 1:29 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Aug 4, 5:52 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
Aug 4, 7:48 PM EDT	Mesoscale Discussion	SPC	87 min
Aug 4, 7:58 PM EDT	Severe Thunderstorm Warning	RNK	62 min
Aug 4, 8:50 PM EDT	Severe Thunderstorm Warning	RNK	43 min
Aug 5, 12:37 PM EDT	Mesoscale Discussion	SPC	53 min
Aug 5, 1:19 PM EDT	Severe Thunderstorm Watch	SPC	9 hr
Aug 5, 2:45 PM EDT	Severe Thunderstorm Warning	RNK	60 min
Aug 5, 3:38 PM EDT	Severe Thunderstorm Warning	RNK	67 min
Aug 5, 3:56 PM EDT	Mesoscale Discussion	SPC	64 min
Aug 5, 4:09 PM EDT	Tornado Warning	RNK	36 min
Aug 5, 4:17 PM EDT	Severe Thunderstorm Warning	RNK	34 min
Aug 5, 4:38 PM EDT	Flash Flood Warning	RNK	5 hr
Aug 5, 4:39 PM EDT	Severe Thunderstorm Warning	RNK	34 min
Aug 5, 4:43 PM EDT	Severe Thunderstorm Warning	RNK	62 min
Aug 5, 6:23 PM EDT	Mesoscale Discussion	SPC	97 min
Aug 10, 5:17 PM EDT	Special Weather Statement	RNK	58 min
Aug 11, 5:19 PM EDT	Severe Thunderstorm Warning	RNK	39 min
Aug 11, 6:26 PM EDT	Special Weather Statement	RNK	64 min
Aug 11, 7:55 PM EDT	Special Weather Statement	RNK	65 min
Aug 16, 2:01 PM EDT	Mesoscale Discussion	SPC	89 min
Aug 16, 3:46 PM EDT	Severe Thunderstorm Warning	RNK	29 min
Aug 17, 3:48 PM EDT	Flash Flood Watch	RNK	50 hr
Aug 18, 2:18 PM EDT	Severe Thunderstorm Warning	RNK	57 min
Aug 18, 2:22 PM EDT	Flash Flood Warning	RNK	4 hr
Aug 18, 3:20 PM EDT	Severe Thunderstorm Warning	RNK	55 min
Aug 18, 3:34 PM EDT	Flash Flood Warning	RNK	2 hr
Aug 20, 3:03 AM EDT	Dense Fog Advisory	RNK	6 hr
Aug 24, 2:13 PM EDT	Special Weather Statement	RNK	62 min
Aug 26, 3:31 PM EDT	Mesoscale Discussion	SPC	89 min
Aug 26, 4:29 PM EDT	Severe Thunderstorm Warning	RNK	61 min
Aug 26, 4:39 PM EDT	Severe Thunderstorm Warning	RNK	66 min
Sep 22, 4:59 PM EDT	Severe Thunderstorm Warning	RNK	61 min
Sep 22, 5:54 PM EDT	Severe Thunderstorm Warning	RNK	81 min
Sep 26, 2:06 PM EDT	Special Weather Statement	RNK	84 min
Sep 26, 3:36 PM EDT	Flood Watch	RNK	36 hr
Sep 29, 4:48 AM EDT	Flash Flood Watch	RNK	30 hr
Sep 30, 5:52 AM EDT	Special Weather Statement	RNK	113 min
Sep 30, 6:27 AM EDT	Flash Flood Warning	RNK	6 hr
Oct 20, 3:36 PM EDT	Wind Advisory	RNK	24 hr
Oct 21, 1:33 AM EDT	Dense Fog Advisory	RNK	5 hr
Oct 22, 3:14 PM EDT	Frost Advisory	RNK	18 hr
Oct 25, 8:23 AM EDT	Severe Thunderstorm Watch	SPC	7 hr
Oct 25, 10:44 AM EDT	Mesoscale Discussion	SPC	61 min
Oct 25, 10:46 AM EDT	Special Weather Statement	RNK	59 min
Oct 26, 6:21 PM EDT	Mesoscale Discussion	SPC	54 min
Oct 26, 7:19 PM EDT	Tornado Watch	SPC	12 hr
Oct 26, 7:36 PM EDT	Special Weather Statement	RNK	54 min
Oct 26, 8:30 PM EDT	Special Weather Statement	RNK	60 min
Oct 26, 10:08 PM EDT	Special Weather Statement	RNK	52 min
Oct 26, 11:05 PM EDT	Mesoscale Discussion	SPC	55 min
Oct 26, 11:21 PM EDT	Severe Thunderstorm Warning	RNK	54 min
Oct 26, 11:27 PM EDT	Tornado Warning	RNK	48 min
Oct 27, 12:24 AM EDT	Mesoscale Discussion	SPC	66 min
Oct 27, 5:28 AM EDT	Mesoscale Discussion	SPC	2 hr
Oct 29, 4:00 AM EDT	Freeze Watch	RNK	12 hr
Oct 29, 3:32 PM EDT	Frost Advisory	RNK	17 hr
Oct 29, 3:32 PM EDT	Freeze Warning	RNK	17 hr
Nov 16, 3:44 PM EST	Wind Advisory	RNK	23 hr
Nov 16, 7:34 PM EST	Mesoscale Discussion	SPC	116 min
Nov 16, 8:47 PM EST	Tornado Watch	SPC	6 hr
Nov 16, 9:25 PM EST	Special Weather Statement	RNK	35 min
Nov 16, 9:41 PM EST	Severe Thunderstorm Warning	RNK	64 min
Nov 29, 3:44 AM EST	Flash Flood Watch	RNK	50 hr
Nov 30, 9:29 PM EST	Mesoscale Discussion	SPC	91 min
Nov 30, 9:56 PM EST	Tornado Watch	SPC	6 hr
Dec 1, 12:36 AM EST	Severe Thunderstorm Warning	RNK	39 min
Dec 1, 12:48 AM EST	Mesoscale Discussion	SPC	117 min
Dec 1, 1:07 AM EST	Flash Flood Warning	RNK	6 hr
Dec 1, 1:20 AM EST	Special Weather Statement	RNK	40 min
Dec 1, 1:34 AM EST	Severe Thunderstorm Warning	RNK	57 min
Dec 3, 3:23 PM EST	Winter Weather Advisory	RNK	40 hr
Dec 11, 4:19 AM EST	Winter Weather Advisory	RNK	60 hr
Dec 12, 10:41 PM EST	Wind Advisory	RNK	44 hr
Dec 15, 5:10 AM EST	Winter Storm Watch	RNK	10 hr
Dec 15, 3:31 PM EST	Winter Storm Warning	RNK	26 hr
Dec 15, 3:31 PM EST	Winter Weather Advisory	RNK	37 hr
Dec 16, 4:17 AM EST	Mesoscale Discussion	SPC	6 hr
Dec 22, 3:18 PM EST	Wind Advisory	RNK	27 hr
Dec 25, 4:52 AM EST	Winter Weather Advisory	RNK	32 hr
Dec 25, 2:22 PM EST	Special Weather Statement	RNK	113 min
Dec 25, 3:22 PM EST	Special Weather Statement	RNK	113 min
Dec 25, 6:17 PM EST	Special Weather Statement	RNK	88 min
Dec 26, 4:34 AM EST	High Wind Warning	RNK	40 hr
Dec 26, 4:34 AM EST	Wind Advisory	RNK	39 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	50
Tornado Warning	2
Severe Thunderstorm Watch	10
Tornado Watch	4
Mesoscale Discussion	29
Special Weather Statement	36
Flooding
Areal Flood Warning	1
Flash Flood Warning	6
Flash Flood Watch	8
Flood Watch	4
Winter
Winter Storm Warning	4
Winter Storm Watch	4
Winter Weather Advisory	9
Cold
Freeze Warning	1
Freeze Watch	1
Frost Advisory	5
Wind and dust
High Wind Warning	3
High Wind Watch	1
Wind Advisory	6
Fire
Red Flag Warning	2
Fog and smoke
Dense Fog Advisory	3

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2009 2011

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.