Alert archive / Virginia / Fairfax County

Weather alerts in Fairfax County, Virginia, 2021

222 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Fairfax County and its neighbors

Each county as a circle sized by its count in 2021. Tap one for its archive.

Alerts
222
Warnings
113
Watches
43
Advisories
25
Busiest month
August61 alerts
Busiest day
September 1, 202112 alerts

Over time

By month

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.

IssuedProductOfficeLasted
Jan 25, 1:05 AM ESTWinter Weather AdvisoryLWX36 hr
Jan 29, 3:10 PM ESTWinter Storm WatchLWX23 hr
Jan 30, 9:02 AM ESTWinter Storm WarningLWX69 hr
Jan 31, 6:50 PM ESTWinter Weather AdvisoryLWX42 hr
Feb 5, 3:13 PM ESTWinter Storm WatchLWX12 hr
Feb 6, 3:22 AM ESTWinter Storm WarningLWX33 hr
Feb 6, 3:22 AM ESTWinter Weather AdvisoryLWX33 hr
Feb 10, 3:33 AM ESTWinter Weather AdvisoryLWX30 hr
Feb 11, 6:08 PM ESTWinter Storm WatchLWX21 hr
Feb 12, 3:10 PM ESTIce Storm WarningLWX30 hr
Feb 12, 3:10 PM ESTWinter Weather AdvisoryLWX43 hr
Feb 13, 10:02 AM ESTMesoscale DiscussionSPC6 hr
Feb 16, 12:42 AM ESTAreal Flood WarningLWX2 hr
Feb 16, 4:56 AM ESTWinter Storm WatchLWX29 hr
Feb 17, 3:24 AM ESTWinter Storm WarningLWX57 hr
Feb 18, 10:23 AM ESTMesoscale DiscussionSPC3 hr
Feb 18, 1:05 PM ESTWinter Weather AdvisoryLWX23 hr
Feb 21, 3:17 PM ESTWinter Weather AdvisoryLWX24 hr
Feb 22, 8:22 PM ESTWind AdvisoryLWX22 hr
Feb 28, 9:09 PM ESTDense Fog AdvisoryLWX8 hr
Mar 1, 3:22 AM ESTRiver Flood WatchLWX23 hr
Mar 10, 3:43 PM ESTFire Weather WatchLWX12 hr
Mar 11, 3:28 AM ESTRed Flag WarningLWX15 hr
Mar 13, 1:53 PM ESTFire Weather WatchLWX13 hr
Mar 14, 4:01 AM EDTRed Flag WarningLWX18 hr
Mar 24, 9:09 PM EDTDense Fog AdvisoryLWX14 hr
Mar 25, 2:41 PM EDTWind AdvisoryLWX27 hr
Mar 28, 4:16 AM EDTWind AdvisoryLWX23 hr
Mar 28, 1:24 PM EDTMesoscale DiscussionSPC2 hr
Mar 28, 5:05 PM EDTSevere Thunderstorm WatchSPC4 hr
Apr 11, 4:54 PM EDTMesoscale DiscussionSPC2 hr
Apr 21, 2:47 PM EDTWind AdvisoryLWX5 hr
Apr 22, 12:03 PM EDTFreeze WarningLWX20 hr
Apr 29, 3:59 AM EDTHigh Wind WatchLWX16 hr
Apr 29, 8:18 PM EDTHigh Wind WarningLWX25 hr
Apr 29, 8:18 PM EDTWind AdvisoryLWX30 hr
Apr 30, 4:39 PM EDTSevere Thunderstorm WarningLWX36 min
May 4, 1:04 PM EDTMesoscale DiscussionSPC56 min
May 4, 1:51 PM EDTSevere Thunderstorm WatchSPC6 hr
May 4, 3:50 PM EDTMesoscale DiscussionSPC115 min
May 4, 4:01 PM EDTSevere Thunderstorm WarningLWX44 min
May 4, 4:26 PM EDTSevere Thunderstorm WarningLWX49 min
May 5, 1:03 PM EDTMesoscale DiscussionSPC2 hr
May 26, 1:21 PM EDTMesoscale DiscussionSPC84 min
May 26, 2:48 PM EDTSevere Thunderstorm WatchSPC7 hr
May 26, 4:05 PM EDTSevere Thunderstorm WarningLWX40 min
May 26, 4:35 PM EDTSevere Thunderstorm WarningLWX40 min
May 26, 4:41 PM EDTMesoscale DiscussionSPC64 min
May 26, 5:22 PM EDTSevere Thunderstorm WarningLWX24 min
May 26, 6:34 PM EDTMesoscale DiscussionSPC116 min
May 26, 7:27 PM EDTSevere Thunderstorm WarningLWX48 min
May 26, 7:50 PM EDTSevere Thunderstorm WarningLWX40 min
May 26, 7:59 PM EDTSevere Thunderstorm WarningLWX46 min
May 26, 8:21 PM EDTSevere Thunderstorm WarningLWX39 min
May 26, 8:53 PM EDTSevere Thunderstorm WarningLWX52 min
May 28, 6:15 PM EDTSevere Thunderstorm WarningLWX34 min
Jun 3, 1:46 PM EDTMesoscale DiscussionSPC119 min
Jun 3, 2:48 PM EDTSevere Thunderstorm WatchSPC6 hr
Jun 3, 4:47 PM EDTMesoscale DiscussionSPC88 min
Jun 4, 12:33 PM EDTSevere Thunderstorm WarningLWX42 min
Jun 4, 12:36 PM EDTSevere Thunderstorm WarningLWX39 min
Jun 4, 12:46 PM EDTMesoscale DiscussionSPC59 min
Jun 10, 2:53 AM EDTFlash Flood WatchLWX43 hr
Jun 10, 5:05 PM EDTFlash Flood Warning Considerable damage threatLWX114 min
Jun 13, 12:32 PM EDTMesoscale DiscussionSPC118 min
Jun 14, 6:41 PM EDTMesoscale DiscussionSPC2 hr
Jun 14, 7:29 PM EDTSevere Thunderstorm WatchSPC6 hr
Jun 14, 8:26 PM EDTSevere Thunderstorm WarningLWX37 min
Jun 14, 9:55 PM EDTSevere Thunderstorm WarningLWX50 min
Jun 14, 10:09 PM EDTMesoscale DiscussionSPC2 hr
Jun 14, 10:11 PM EDTSevere Thunderstorm WarningLWX49 min
Jun 14, 10:25 PM EDTFlash Flood WatchLWX4 hr
Jun 14, 10:30 PM EDTSevere Thunderstorm WarningLWX45 min
Jun 14, 10:49 PM EDTFlash Flood Warning Considerable damage threatLWX3 hr
Jun 15, 1:43 AM EDTAreal Flood WarningLWX17 min
Jun 15, 1:53 AM EDTAreal Flood WarningLWX4 hr
Jun 15, 2:05 AM EDTAreal Flood WarningLWX4 hr
Jun 15, 6:08 AM EDTAreal Flood WarningLWX46 min
Jun 21, 1:51 PM EDTMesoscale DiscussionSPC114 min
Jun 21, 2:20 PM EDTSevere Thunderstorm WatchSPC6 hr
Jun 21, 5:02 PM EDTSevere Thunderstorm WarningLWX43 min
Jun 30, 2:23 PM EDTFlash Flood WatchLWX42 hr
Jul 1, 11:45 AM EDTMesoscale DiscussionSPC2 hr
Jul 1, 12:46 PM EDTSevere Thunderstorm WatchSPC7 hr
Jul 1, 1:03 PM EDTSevere Thunderstorm WarningLWX42 min
Jul 1, 2:11 PM EDTSevere Thunderstorm WarningLWX49 min
Jul 1, 2:28 PM EDTSevere Thunderstorm WarningLWX47 min
Jul 1, 2:36 PM EDTMesoscale DiscussionSPC84 min
Jul 1, 2:43 PM EDTSevere Thunderstorm WarningLWX47 min
Jul 1, 3:14 PM EDTFlash Flood Warning Considerable damage threatLWX3 hr
Jul 1, 3:31 PM EDTFlash Flood WarningLWX3 hr
Jul 1, 8:26 PM EDTSevere Thunderstorm WarningLWX37 min
Jul 1, 8:30 PM EDTFlash Flood Warning Considerable damage threatLWX2 hr
Jul 1, 8:47 PM EDTSevere Thunderstorm WarningLWX43 min
Jul 1, 8:58 PM EDTTornado WarningLWX32 min
Jul 1, 10:45 PM EDTAreal Flood WarningLWX3 hr
Jul 8, 1:03 PM EDTSevere Thunderstorm WarningLWX42 min
Jul 9, 5:02 PM EDTAreal Flood WarningLWX3 hr
Jul 12, 1:32 PM EDTMesoscale DiscussionSPC88 min
Jul 14, 3:24 PM EDTMesoscale DiscussionSPC2 hr
Jul 14, 3:26 PM EDTSevere Thunderstorm WarningLWX49 min
Jul 14, 4:01 PM EDTSevere Thunderstorm WarningLWX44 min
Jul 16, 10:20 PM EDTFlash Flood WatchLWX24 hr
Jul 17, 12:00 PM EDTMesoscale DiscussionSPC3 hr
Jul 17, 1:13 PM EDTSevere Thunderstorm WatchSPC10 hr
Jul 17, 3:02 PM EDTMesoscale DiscussionSPC88 min
Jul 17, 3:30 PM EDTSevere Thunderstorm WarningLWX45 min
Jul 17, 4:12 PM EDTSevere Thunderstorm WarningLWX36 min
Jul 17, 4:38 PM EDTMesoscale DiscussionSPC97 min
Jul 17, 6:54 PM EDTMesoscale DiscussionSPC2 hr
Jul 21, 10:32 AM EDTMesoscale DiscussionSPC58 min
Jul 21, 11:56 AM EDTSevere Thunderstorm WatchSPC7 hr
Jul 21, 1:14 PM EDTSevere Thunderstorm WarningLWX46 min
Jul 26, 7:36 PM EDTSevere Thunderstorm WarningLWX24 min
Jul 28, 9:48 PM EDTSevere Thunderstorm WarningLWX42 min
Jul 28, 10:11 PM EDTSevere Thunderstorm WarningLWX49 min
Jul 28, 10:30 PM EDTSevere Thunderstorm WarningLWX45 min
Jul 29, 3:00 PM EDTSevere Thunderstorm WatchSPC6 hr
Aug 10, 1:33 PM EDTExcessive Heat WatchLWX37 hr
Aug 10, 1:33 PM EDTHeat AdvisoryLWX29 hr
Aug 10, 2:30 PM EDTMesoscale DiscussionSPC3 hr
Aug 10, 4:15 PM EDTSevere Thunderstorm WarningLWX31 min
Aug 10, 4:34 PM EDTSevere Thunderstorm WarningLWX41 min
Aug 10, 5:08 PM EDTSevere Thunderstorm WarningLWX18 min
Aug 10, 5:12 PM EDTSevere Thunderstorm WarningLWX48 min
Aug 10, 5:41 PM EDTSevere Thunderstorm Warning Considerable damage threatLWX35 min
Aug 10, 5:53 PM EDTSevere Thunderstorm WarningLWX29 min
Aug 11, 1:01 PM EDTMesoscale DiscussionSPC89 min
Aug 11, 2:02 PM EDTSevere Thunderstorm WatchSPC6 hr
Aug 11, 3:47 PM EDTMesoscale DiscussionSPC88 min
Aug 11, 4:20 PM EDTSevere Thunderstorm WarningLWX40 min
Aug 12, 2:15 AM EDTHeat AdvisoryLWX18 hr
Aug 12, 6:04 PM EDTHeat AdvisoryLWX25 hr
Aug 13, 12:33 PM EDTMesoscale DiscussionSPC87 min
Aug 13, 1:11 PM EDTSevere Thunderstorm WatchSPC7 hr
Aug 13, 4:05 PM EDTSevere Thunderstorm WarningLWX40 min
Aug 13, 4:46 PM EDTSevere Thunderstorm WarningLWX29 min
Aug 13, 4:48 PM EDTMesoscale DiscussionSPC87 min
Aug 13, 5:11 PM EDTSevere Thunderstorm WarningLWX49 min
Aug 13, 5:56 PM EDTSevere Thunderstorm WarningLWX49 min
Aug 14, 1:10 PM EDTMesoscale DiscussionSPC2 hr
Aug 14, 6:14 PM EDTFlash Flood WatchLWX10 hr
Aug 15, 12:13 AM EDTFlash Flood Warning Considerable damage threatLWX3 hr
Aug 15, 12:42 AM EDTFlash Flood Warning Considerable damage threatLWX2 hr
Aug 15, 3:09 AM EDTAreal Flood WarningLWX2 hr
Aug 15, 3:23 AM EDTAreal Flood WarningLWX2 hr
Aug 15, 5:47 PM EDTFlash Flood WatchLWX18 hr
Aug 16, 5:24 PM EDTFlash Flood Warning Considerable damage threatLWX2 hr
Aug 16, 11:32 PM EDTFlash Flood Warning Considerable damage threatLWX3 hr
Aug 17, 2:17 AM EDTAreal Flood WarningLWX4 hr
Aug 17, 1:54 PM EDTFlash Flood WatchLWX27 hr
Aug 18, 10:58 AM EDTMesoscale DiscussionSPC92 min
Aug 18, 11:37 AM EDTTornado WatchSPC11 hr
Aug 18, 3:29 PM EDTMesoscale DiscussionSPC91 min
Aug 18, 4:57 PM EDTMesoscale DiscussionSPC93 min
Aug 19, 2:11 PM EDTFlash Flood WatchLWX28 hr
Aug 20, 7:18 AM EDTAreal Flood WarningLWX9 hr
Aug 20, 7:35 AM EDTAreal Flood WarningLWX9 hr
Aug 20, 7:52 AM EDTFlash Flood Warning Considerable damage threatLWX2 hr
Aug 20, 8:16 AM EDTFlash Flood Warning Considerable damage threatLWX111 min
Aug 21, 1:38 PM EDTAreal Flood WarningLWX2 hr
Aug 22, 4:41 PM EDTSevere Thunderstorm WarningLWX49 min
Aug 25, 7:23 PM EDTSevere Thunderstorm WarningLWX21 min
Aug 26, 3:31 PM EDTSevere Thunderstorm WarningLWX44 min
Aug 26, 4:03 PM EDTSevere Thunderstorm WarningLWX42 min
Aug 27, 2:56 AM EDTFlash Flood WatchLWX17 hr
Aug 27, 1:41 PM EDTMesoscale DiscussionSPC3 hr
Aug 27, 3:05 PM EDTSevere Thunderstorm WarningLWX40 min
Aug 27, 3:36 PM EDTSevere Thunderstorm Warning Considerable damage threatLWX19 min
Aug 27, 4:11 PM EDTAreal Flood WarningLWX3 hr
Aug 27, 4:44 PM EDTAreal Flood WarningLWX3 hr
Aug 27, 4:46 PM EDTSevere Thunderstorm WarningLWX44 min
Aug 27, 5:21 PM EDTSevere Thunderstorm WarningLWX39 min
Aug 27, 5:44 PM EDTAreal Flood WarningLWX2 hr
Aug 28, 6:55 PM EDTSevere Thunderstorm WarningLWX33 min
Aug 28, 7:18 PM EDTSevere Thunderstorm WarningLWX42 min
Aug 30, 4:54 AM EDTFlash Flood WatchLWX62 hr
Aug 30, 11:48 AM EDTFlash Flood WatchLWX6 hr
Aug 30, 4:51 PM EDTMesoscale DiscussionSPC84 min
Aug 31, 9:44 PM EDTRiver Flood WatchLWX25 hr
Sep 1, 12:19 AM EDTMesoscale DiscussionSPC86 min
Sep 1, 12:56 AM EDTTornado WatchSPC6 hr
Sep 1, 2:25 AM EDTAreal Flood WarningLWX11 hr
Sep 1, 2:34 AM EDTSevere Thunderstorm WarningLWX41 min
Sep 1, 2:52 AM EDTAreal Flood WarningLWX9 hr
Sep 1, 2:59 AM EDTSevere Thunderstorm WarningLWX46 min
Sep 1, 3:01 AM EDTFlash Flood Warning Considerable damage threatLWX2 hr
Sep 1, 3:23 AM EDTAreal Flood WarningLWX8 hr
Sep 1, 4:34 AM EDTAreal Flood WarningLWX6 hr
Sep 1, 11:03 AM EDTMesoscale DiscussionSPC2 hr
Sep 1, 11:46 AM EDTTornado WatchSPC9 hr
Sep 8, 6:11 PM EDTFlash Flood WatchLWX10 hr
Sep 8, 8:29 PM EDTSevere Thunderstorm WatchSPC4 hr
Sep 16, 2:44 PM EDTFlash Flood WatchLWX6 hr
Sep 16, 3:21 PM EDTAreal Flood WarningLWX6 hr
Sep 16, 3:50 PM EDTFlash Flood Warning Considerable damage threatLWX3 hr
Sep 16, 4:31 PM EDTAreal Flood WarningLWX3 hr
Sep 16, 5:31 PM EDTFlash Flood Warning Considerable damage threatLWX67 min
Sep 21, 3:04 AM EDTFlash Flood WatchLWX57 hr
Sep 22, 4:22 PM EDTSevere Thunderstorm WarningLWX38 min
Sep 23, 3:13 AM EDTMesoscale DiscussionSPC5 hr
Sep 23, 3:47 AM EDTAreal Flood WarningLWX12 hr
Sep 23, 4:41 AM EDTAreal Flood WarningLWX9 hr
Oct 4, 4:44 PM EDTMesoscale DiscussionSPC2 hr
Oct 14, 2:36 AM EDTDense Fog AdvisoryLWX7 hr
Oct 25, 5:25 PM EDTSevere Thunderstorm WarningLWX35 min
Oct 25, 5:44 PM EDTSevere Thunderstorm WarningLWX46 min
Oct 25, 5:50 PM EDTFlash Flood WatchLWX5 hr
Oct 25, 7:11 PM EDTAreal Flood WarningLWX10 hr
Oct 25, 8:32 PM EDTAreal Flood WarningLWX7 hr
Oct 26, 2:55 AM EDTWind AdvisoryLWX21 hr
Oct 27, 10:50 AM EDTCoastal Flood WatchLWX29 hr
Oct 28, 4:29 AM EDTCoastal Flood WarningLWX72 hr
Oct 28, 2:07 PM EDTFlood WatchLWX28 hr
Oct 29, 12:34 PM EDTAreal Flood WarningLWX9 hr
Oct 30, 4:22 AM EDTCoastal Flood AdvisoryLWX49 hr
Nov 2, 3:22 AM EDTFrost AdvisoryLWX30 hr
Nov 3, 3:38 PM EDTFrost AdvisoryLWX17 hr
Nov 4, 4:06 AM EDTFreeze WarningLWX29 hr
Nov 26, 1:48 PM ESTWind AdvisoryLWX3 hr
Dec 6, 11:09 AM ESTWind AdvisoryLWX14 hr
Dec 10, 10:48 AM ESTWind AdvisoryLWX38 hr

By product

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

ProductAlerts
Severe storms
Severe Thunderstorm Warning61
Tornado Warning1
Severe Thunderstorm Watch13
Tornado Watch3
Mesoscale Discussion41
Flooding
Areal Flood Warning27
Flash Flood Warning14
Flash Flood Watch15
Flood Watch1
River Flood Watch2
Winter
Ice Storm Warning1
Winter Storm Warning3
Winter Storm Watch4
Winter Weather Advisory7
Heat
Excessive Heat Watch1
Heat Advisory3
Cold
Freeze Warning2
Frost Advisory2
Wind and dust
High Wind Warning1
High Wind Watch1
Wind Advisory9
Fire
Red Flag Warning2
Fire Weather Watch2
Fog and smoke
Dense Fog Advisory3
Coast and beach
Coastal Flood Warning1
Coastal Flood Watch1
Coastal Flood Advisory1

The busiest days

Days with the most alerts issued, by UTC date.

  1. September 1, 202112alerts
  2. June 15, 202111alerts
  3. May 26, 202110alerts
  4. July 1, 20219alerts
  5. August 10, 20219alerts
  6. August 27, 20219alerts
  7. July 17, 20218alerts
  8. August 13, 20217alerts
  9. May 4, 20215alerts
  10. July 2, 20215alerts

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20202022

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. Rebuilt daily.