Alert archive / Virginia / Amherst County

Weather alerts in Amherst County, Virginia, 2019

233 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Amherst County and its neighbors

Each county as a circle sized by its count in 2019. Tap one for its archive.

Alerts: 233
Warnings: 55
Watches: 29
Advisories: 87
Busiest month: April36 alerts
Busiest day: April 14, 20199 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 Amherst County in 2019 had a tornado report inside them.

Amherst County, 2019

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	2	0	100%	0
Severe thunderstorm warnings	35	24	31%	19	68%	25 min
Flash flood warnings	3	2	33%	0

Each office's whole area, 2019

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Blacksburg, VA: tornado warnings	45	1	98%	4	50%	32 min
NWS Blacksburg, VA: severe thunderstorm warnings	299	219	27%	791	68%	25 min
NWS Blacksburg, VA: flash flood warnings	35	14	60%	52	48%	70 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 4, 3:17 PM EST	Wind Advisory	RNK	24 hr
Jan 5, 12:58 PM EST	Wind Advisory	LWX	5 hr
Jan 8, 3:57 AM EST	Wind Advisory	RNK	51 hr
Jan 8, 2:18 PM EST	Wind Advisory	LWX	22 hr
Jan 10, 2:25 AM EST	Wind Advisory	LWX	11 hr
Jan 11, 3:37 AM EST	Winter Storm Watch	LWX	11 hr
Jan 11, 4:06 AM EST	Winter Storm Watch	RNK	12 hr
Jan 11, 2:17 PM EST	Winter Storm Warning	LWX	56 hr
Jan 11, 3:44 PM EST	Winter Storm Warning	RNK	51 hr
Jan 13, 7:16 PM EST	Winter Weather Advisory	RNK	15 hr
Jan 13, 9:47 PM EST	Winter Weather Advisory	LWX	20 hr
Jan 17, 3:41 AM EST	Winter Weather Advisory	LWX	30 hr
Jan 17, 4:49 AM EST	Winter Weather Advisory	RNK	24 hr
Jan 18, 1:27 PM EST	Winter Weather Advisory	LWX	41 hr
Jan 18, 2:31 PM EST	Winter Weather Advisory	RNK	22 hr
Jan 19, 1:44 PM EST	Wind Advisory	LWX	29 hr
Jan 19, 3:52 PM EST	Winter Weather Advisory	RNK	40 hr
Jan 20, 3:44 AM EST	Wind Chill Advisory	LWX	31 hr
Jan 20, 12:16 PM EST	Wind Chill Advisory	RNK	24 hr
Jan 23, 4:03 AM EST	Flood Watch	LWX	35 hr
Jan 23, 5:22 AM EST	Flood Watch	RNK	29 hr
Jan 23, 12:54 PM EST	Wind Advisory	LWX	21 hr
Jan 23, 2:16 PM EST	High Wind Warning	LWX	14 hr
Jan 29, 3:20 AM EST	Wind Chill Warning	LWX	57 hr
Jan 29, 3:20 AM EST	Wind Chill Advisory	LWX	57 hr
Jan 29, 3:20 PM EST	Wind Chill Advisory	RNK	45 hr
Jan 29, 9:00 PM EST	Wind Advisory	LWX	20 hr
Jan 29, 10:25 PM EST	Wind Advisory	RNK	21 hr
Jan 30, 3:31 AM EST	High Wind Warning	LWX	13 hr
Feb 7, 8:47 PM EST	Dense Fog Advisory	RNK	5 hr
Feb 8, 3:22 AM EST	Wind Advisory	RNK	17 hr
Feb 8, 3:28 AM EST	Wind Advisory	LWX	15 hr
Feb 10, 3:02 AM EST	Winter Weather Advisory	LWX	61 hr
Feb 10, 4:43 AM EST	Winter Weather Advisory	RNK	27 hr
Feb 10, 7:32 PM EST	Winter Storm Watch	LWX	19 hr
Feb 11, 1:55 PM EST	Winter Weather Advisory	RNK	20 hr
Feb 12, 3:32 AM EST	Wind Advisory	RNK	37 hr
Feb 12, 1:57 PM EST	Wind Advisory	LWX	24 hr
Feb 12, 7:12 PM EST	Special Weather Statement	RNK	2 hr
Feb 15, 2:52 PM EST	Winter Weather Advisory	LWX	12 hr
Feb 16, 2:54 PM EST	Winter Weather Advisory	LWX	34 hr
Feb 16, 4:10 PM EST	Winter Weather Advisory	RNK	27 hr
Feb 18, 3:28 AM EST	Winter Storm Watch	RNK	12 hr
Feb 18, 3:38 AM EST	Winter Storm Watch	LWX	23 hr
Feb 18, 3:33 PM EST	Winter Storm Warning	RNK	56 hr
Feb 19, 2:47 AM EST	Winter Storm Warning	LWX	46 hr
Feb 20, 12:26 AM EST	Mesoscale Discussion	SPC	4 hr
Feb 20, 6:28 PM EST	Areal Flood Advisory	RNK	4 hr
Feb 21, 2:44 PM EST	Flood Watch	RNK	67 hr
Feb 22, 1:39 PM EST	High Wind Watch	LWX	25 hr
Feb 22, 2:57 PM EST	Winter Weather Advisory	LWX	37 hr
Feb 22, 2:58 PM EST	Flood Watch	LWX	36 hr
Feb 23, 1:56 AM EST	High Wind Watch	RNK	14 hr
Feb 23, 2:00 PM EST	Areal Flood Advisory	RNK	6 hr
Feb 23, 3:01 PM EST	High Wind Warning	LWX	44 hr
Feb 23, 4:08 PM EST	High Wind Warning	RNK	44 hr
Feb 24, 3:02 AM EST	Wind Advisory	LWX	38 hr
Feb 24, 4:30 AM EST	Areal Flood Warning	RNK	6 hr
Feb 28, 6:32 AM EST	Winter Weather Advisory	RNK	40 hr
Feb 28, 9:28 AM EST	Winter Weather Advisory	LWX	24 hr
Mar 1, 9:43 AM EST	Winter Weather Advisory	LWX	19 hr
Mar 2, 1:55 PM EST	Winter Weather Advisory	LWX	35 hr
Mar 5, 3:24 AM EST	Wind Chill Advisory	RNK	31 hr
Mar 5, 1:54 PM EST	Wind Chill Advisory	LWX	20 hr
Mar 7, 2:28 PM EST	Winter Weather Advisory	LWX	29 hr
Mar 7, 3:05 PM EST	Winter Weather Advisory	RNK	24 hr
Mar 19, 10:00 AM EDT	Special Weather Statement	RNK	15 min
Mar 21, 12:26 PM EDT	Winter Storm Warning	LWX	8 hr
Mar 22, 3:30 AM EDT	Wind Advisory	RNK	24 hr
Mar 22, 4:08 AM EDT	Wind Advisory	LWX	24 hr
Mar 22, 3:59 PM EDT	Special Weather Statement	RNK	61 min
Apr 8, 2:32 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Apr 8, 3:12 PM EDT	Special Weather Statement	RNK	48 min
Apr 8, 3:27 PM EDT	Severe Thunderstorm Warning	RNK	48 min
Apr 8, 4:14 PM EDT	Severe Thunderstorm Warning	RNK	41 min
Apr 8, 4:39 PM EDT	Areal Flood Advisory	RNK	66 min
Apr 8, 4:41 PM EDT	Severe Thunderstorm Warning	RNK	65 min
Apr 14, 2:16 PM EDT	Tornado Watch	SPC	8 hr
Apr 14, 5:33 PM EDT	Severe Thunderstorm Warning	RNK	27 min
Apr 14, 5:37 PM EDT	Tornado Warning	RNK	38 min
Apr 14, 5:40 PM EDT	Tornado Warning	RNK	36 min
Apr 14, 5:49 PM EDT	Mesoscale Discussion	SPC	26 min
Apr 14, 6:15 PM EDT	Special Weather Statement	RNK	30 min
Apr 14, 6:29 PM EDT	Severe Thunderstorm Warning	RNK	61 min
Apr 14, 7:01 PM EDT	Areal Flood Advisory	RNK	87 min
Apr 14, 7:39 PM EDT	Special Weather Statement	RNK	51 min
Apr 14, 9:11 PM EDT	Special Weather Statement	RNK	34 min
Apr 14, 10:09 PM EDT	Mesoscale Discussion	SPC	96 min
Apr 14, 10:14 PM EDT	Tornado Watch	SPC	6 hr
Apr 14, 11:41 PM EDT	Severe Thunderstorm Warning	RNK	49 min
Apr 15, 12:05 AM EDT	Severe Thunderstorm Warning	RNK	40 min
Apr 15, 1:08 AM EDT	Severe Thunderstorm Warning	RNK	39 min
Apr 15, 2:58 AM EDT	Wind Advisory	RNK	15 hr
Apr 15, 3:51 AM EDT	Wind Advisory	LWX	16 hr
Apr 15, 1:24 PM EDT	Frost Advisory	LWX	20 hr
Apr 15, 9:28 PM EDT	Frost Advisory	RNK	12 hr
Apr 18, 8:24 AM EDT	Special Weather Statement	RNK	51 min
Apr 18, 2:07 PM EDT	Flash Flood Watch	LWX	32 hr
Apr 19, 10:31 AM EDT	Tornado Watch	SPC	9 hr
Apr 19, 1:40 PM EDT	Mesoscale Discussion	SPC	2 hr
Apr 19, 4:31 PM EDT	Areal Flood Advisory	RNK	3 hr
Apr 19, 4:42 PM EDT	Special Weather Statement	RNK	63 min
Apr 19, 4:43 PM EDT	Flash Flood Warning	RNK	4 hr
Apr 19, 5:04 PM EDT	Severe Thunderstorm Warning	RNK	26 min
Apr 25, 3:31 PM EDT	Wind Advisory	RNK	42 hr
Apr 26, 12:12 PM EDT	Special Weather Statement	RNK	78 min
Apr 26, 5:39 PM EDT	Wind Advisory	LWX	19 hr
May 2, 2:48 PM EDT	Areal Flood Advisory	RNK	3 hr
May 2, 2:59 PM EDT	Special Weather Statement	RNK	61 min
May 2, 5:14 PM EDT	Severe Thunderstorm Warning	RNK	46 min
May 3, 6:29 PM EDT	Special Weather Statement	RNK	61 min
May 8, 11:07 PM EDT	Special Weather Statement	RNK	68 min
May 11, 1:15 PM EDT	Flood Watch	LWX	25 hr
May 12, 3:37 PM EDT	Mesoscale Discussion	SPC	113 min
May 12, 4:15 PM EDT	Severe Thunderstorm Warning	RNK	45 min
May 12, 5:02 PM EDT	Special Weather Statement	RNK	28 min
May 17, 7:37 PM EDT	Mesoscale Discussion	SPC	113 min
May 17, 9:39 PM EDT	Mesoscale Discussion	SPC	66 min
May 25, 3:28 PM EDT	Special Weather Statement	RNK	62 min
May 26, 1:45 PM EDT	Mesoscale Discussion	SPC	2 hr
May 29, 3:41 PM EDT	Severe Thunderstorm Watch	SPC	4 hr
May 29, 4:13 PM EDT	Severe Thunderstorm Warning	RNK	47 min
May 29, 5:52 PM EDT	Severe Thunderstorm Warning	RNK	1 min
May 29, 5:55 PM EDT	Severe Thunderstorm Warning	RNK	50 min
May 31, 1:29 PM EDT	Severe Thunderstorm Watch	SPC	10 hr
May 31, 5:42 PM EDT	Severe Thunderstorm Warning	RNK	63 min
May 31, 7:22 PM EDT	Mesoscale Discussion	SPC	83 min
May 31, 9:55 PM EDT	Mesoscale Discussion	SPC	95 min
Jun 2, 12:24 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 2, 3:33 PM EDT	Mesoscale Discussion	SPC	87 min
Jun 2, 6:53 PM EDT	Mesoscale Discussion	SPC	67 min
Jun 5, 2:38 PM EDT	Special Weather Statement	RNK	52 min
Jun 13, 12:58 AM EDT	Areal Flood Advisory	RNK	6 hr
Jun 13, 6:50 AM EDT	Areal Flood Advisory	RNK	3 hr
Jun 17, 4:03 PM EDT	Special Weather Statement	RNK	57 min
Jun 18, 3:38 AM EDT	Flash Flood Watch	LWX	19 hr
Jun 18, 3:19 PM EDT	Mesoscale Discussion	SPC	116 min
Jun 19, 6:04 PM EDT	Special Weather Statement	RNK	56 min
Jun 24, 3:56 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 24, 6:28 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 24, 7:17 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 24, 9:56 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 27, 3:08 PM EDT	Special Weather Statement	RNK	37 min
Jun 27, 3:44 PM EDT	Special Weather Statement	RNK	46 min
Jul 4, 11:23 AM EDT	Flash Flood Watch	LWX	12 hr
Jul 4, 3:35 PM EDT	Special Weather Statement	RNK	25 min
Jul 4, 4:22 PM EDT	Areal Flood Advisory	RNK	113 min
Jul 4, 4:34 PM EDT	Special Weather Statement	RNK	26 min
Jul 5, 5:47 AM EDT	Flash Flood Watch	LWX	16 hr
Jul 6, 9:47 PM EDT	Severe Thunderstorm Warning	RNK	58 min
Jul 6, 10:26 PM EDT	Special Weather Statement	RNK	64 min
Jul 6, 11:51 PM EDT	Areal Flood Advisory	RNK	73 min
Jul 7, 4:06 AM EDT	Flash Flood Watch	LWX	34 hr
Jul 7, 4:26 AM EDT	Flash Flood Watch	RNK	18 hr
Jul 7, 4:56 PM EDT	Flash Flood Warning	RNK	2 hr
Jul 11, 4:13 PM EDT	Special Weather Statement	RNK	47 min
Jul 11, 4:27 PM EDT	Severe Thunderstorm Warning	RNK	33 min
Jul 11, 4:57 PM EDT	Special Weather Statement	RNK	48 min
Jul 11, 5:52 PM EDT	Areal Flood Advisory	RNK	111 min
Jul 15, 4:37 PM EDT	Special Weather Statement	RNK	53 min
Jul 15, 4:48 PM EDT	Severe Thunderstorm Warning	RNK	57 min
Jul 15, 5:34 PM EDT	Special Weather Statement	RNK	56 min
Jul 15, 5:45 PM EDT	Severe Thunderstorm Warning	RNK	60 min
Jul 16, 3:28 PM EDT	Mesoscale Discussion	SPC	3 hr
Jul 17, 1:29 PM EDT	Mesoscale Discussion	SPC	3 hr
Jul 18, 1:49 PM EDT	Mesoscale Discussion	SPC	2 hr
Jul 18, 2:58 PM EDT	Heat Advisory	RNK	29 hr
Jul 19, 3:01 PM EDT	Heat Advisory	RNK	52 hr
Jul 21, 2:35 PM EDT	Severe Thunderstorm Warning	RNK	55 min
Jul 21, 2:48 PM EDT	Flash Flood Watch	LWX	37 hr
Jul 21, 2:50 PM EDT	Areal Flood Advisory	RNK	3 hr
Jul 21, 3:29 PM EDT	Severe Thunderstorm Warning	RNK	57 min
Jul 22, 5:22 PM EDT	Areal Flood Advisory	RNK	3 hr
Jul 22, 5:39 PM EDT	Severe Thunderstorm Warning	RNK	66 min
Jul 31, 4:52 PM EDT	Severe Thunderstorm Warning	RNK	53 min
Jul 31, 5:57 PM EDT	Special Weather Statement	RNK	33 min
Aug 1, 7:44 PM EDT	Severe Thunderstorm Warning	RNK	61 min
Aug 1, 9:02 PM EDT	Flash Flood Warning	RNK	4 hr
Aug 2, 1:17 AM EDT	Areal Flood Warning	RNK	118 min
Aug 9, 2:25 PM EDT	Mesoscale Discussion	SPC	95 min
Aug 15, 4:58 PM EDT	Special Weather Statement	RNK	47 min
Aug 15, 5:11 PM EDT	Severe Thunderstorm Warning	RNK	26 min
Aug 15, 5:28 PM EDT	Areal Flood Advisory	RNK	57 min
Aug 16, 12:15 AM EDT	Areal Flood Advisory	RNK	75 min
Aug 20, 3:34 PM EDT	Severe Thunderstorm Warning	RNK	56 min
Aug 20, 4:06 PM EDT	Special Weather Statement	RNK	54 min
Aug 22, 2:02 PM EDT	Mesoscale Discussion	SPC	118 min
Aug 22, 2:32 PM EDT	Severe Thunderstorm Warning	RNK	58 min
Aug 22, 3:31 PM EDT	Severe Thunderstorm Warning	RNK	74 min
Aug 23, 2:14 PM EDT	Mesoscale Discussion	SPC	2 hr
Aug 23, 2:28 PM EDT	Special Weather Statement	RNK	62 min
Aug 23, 3:37 PM EDT	Severe Thunderstorm Warning	RNK	53 min
Sep 9, 4:41 PM EDT	Special Weather Statement	RNK	64 min
Sep 9, 5:39 PM EDT	Special Weather Statement	RNK	66 min
Sep 9, 5:48 PM EDT	Severe Thunderstorm Warning	RNK	57 min
Sep 11, 3:08 PM EDT	Mesoscale Discussion	SPC	2 hr
Sep 11, 4:08 PM EDT	Special Weather Statement	RNK	52 min
Sep 11, 4:53 PM EDT	Severe Thunderstorm Warning	RNK	67 min
Sep 28, 2:30 PM EDT	Severe Thunderstorm Warning	RNK	60 min
Sep 28, 3:29 PM EDT	Severe Thunderstorm Warning	RNK	18 min
Sep 29, 6:15 PM EDT	Special Weather Statement	RNK	45 min
Sep 29, 6:32 PM EDT	Severe Thunderstorm Warning	RNK	58 min
Oct 16, 3:51 AM EDT	Wind Advisory	LWX	34 hr
Oct 18, 2:54 AM EDT	Frost Advisory	RNK	30 hr
Oct 22, 11:53 PM EDT	Dense Fog Advisory	RNK	4 hr
Oct 23, 4:38 AM EDT	Frost Advisory	RNK	28 hr
Oct 27, 7:31 AM EDT	Special Weather Statement	RNK	74 min
Oct 31, 3:48 AM EDT	Wind Advisory	LWX	24 hr
Oct 31, 4:48 AM EDT	Wind Advisory	RNK	28 hr
Oct 31, 1:11 PM EDT	Mesoscale Discussion	SPC	3 hr
Oct 31, 3:16 PM EDT	Tornado Watch	SPC	8 hr
Oct 31, 4:01 PM EDT	Mesoscale Discussion	SPC	119 min
Oct 31, 5:25 PM EDT	Severe Thunderstorm Warning	RNK	65 min
Nov 1, 4:40 AM EDT	Frost Advisory	RNK	8 hr
Nov 1, 12:54 PM EDT	Freeze Warning	RNK	20 hr
Nov 17, 6:46 AM EST	Winter Weather Advisory	LWX	7 hr
Nov 17, 8:00 PM EST	Winter Weather Advisory	LWX	13 hr
Nov 18, 9:12 PM EST	Dense Fog Advisory	RNK	12 hr
Nov 23, 1:22 PM EST	Winter Weather Advisory	LWX	10 hr
Nov 26, 2:44 PM EST	High Wind Watch	RNK	14 hr
Nov 26, 2:47 PM EST	High Wind Watch	LWX	13 hr
Nov 26, 2:47 PM EST	Wind Advisory	LWX	45 hr
Nov 27, 3:49 AM EST	High Wind Warning	LWX	30 hr
Nov 27, 4:38 AM EST	High Wind Warning	RNK	30 hr
Nov 28, 9:29 AM EST	Wind Advisory	LWX	2 hr
Dec 1, 3:50 AM EST	Wind Advisory	RNK	51 hr
Dec 3, 2:46 PM EST	Wind Advisory	RNK	39 hr
Dec 10, 2:28 PM EST	Winter Weather Advisory	LWX	15 hr
Dec 12, 4:30 AM EST	Winter Weather Advisory	RNK	33 hr
Dec 12, 1:51 PM EST	Winter Weather Advisory	LWX	28 hr
Dec 13, 4:59 PM EST	Dense Fog Advisory	LWX	6 hr
Dec 15, 2:51 PM EST	Winter Weather Advisory	LWX	37 hr
Dec 24, 1:38 AM EST	Freezing Fog Advisory	RNK	7 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	35
Tornado Warning	2
Severe Thunderstorm Watch	4
Tornado Watch	4
Mesoscale Discussion	26
Special Weather Statement	36
Flooding
Areal Flood Warning	2
Flash Flood Warning	3
Flash Flood Watch	7
Flood Watch	5
Areal Flood Advisory	15
Winter
Winter Storm Warning	5
Winter Storm Watch	5
Winter Weather Advisory	27
Heat
Heat Advisory	2
Cold
Freeze Warning	1
Wind Chill Warning	1
Frost Advisory	5
Wind Chill Advisory	6
Wind and dust
High Wind Warning	6
High Wind Watch	4
Wind Advisory	27
Fog and smoke
Dense Fog Advisory	4
Freezing Fog Advisory	1

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2018 2020

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.