Alert archive / Virginia / Arlington County
Weather alerts in Arlington County, Virginia, 2026
148 weather alerts in 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Arlington County and its neighbors
Each county as a circle sized by its count in 2026. Tap one for its archive.
- Alerts
- 148
- Warnings
- 26
- Watches
- 39
- Advisories
- 30
- Busiest month
- July35 alerts
- Busiest day
- June 12, 20268 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Arlington County, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 14 | 13 | 7% | 13 | 100% | 20 min |
| Flash flood warnings | 3 | 2 | 33% | 0 |
Each office's whole area, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Baltimore/Washington: tornado warnings | 47 | 6 | 87% | 14 | 64% | 13 min |
| NWS Baltimore/Washington: severe thunderstorm warnings | 526 | 366 | 30% | 1,477 | 87% | 20 min |
| NWS Baltimore/Washington: flash flood warnings | 46 | 27 | 41% | 78 | 87% | 57 min |
An office's figures cover every county it serves, including across state lines.
The year is still running; reports filed late and damage surveys can still change these figures.
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 17, 2:13 PM EST | Winter Weather Advisory | LWX | 28 hr |
| Jan 22, 2:16 AM EST | Winter Storm Watch | LWX | 32 hr |
| Jan 22, 12:49 PM EST | Cold Weather Advisory | LWX | 47 hr |
| Jan 23, 10:03 AM EST | Winter Storm Warning | LWX | 67 hr |
| Jan 25, 9:39 AM EST | Mesoscale Discussion | SPC | 3 hr |
| Jan 25, 3:02 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 25, 11:13 PM EST | Cold Weather Advisory | LWX | 4 days |
| Jan 27, 12:01 AM EST | Cold Weather Advisory | LWX | 35 hr |
| Jan 27, 11:39 PM EST | Cold Weather Advisory | LWX | 59 hr |
| Jan 28, 11:08 PM EST | Cold Weather Advisory | LWX | 36 hr |
| Jan 30, 12:35 AM EST | Cold Weather Advisory | LWX | 33 hr |
| Jan 31, 1:12 AM EST | Cold Weather Advisory | LWX | 34 hr |
| Feb 1, 12:05 PM EST | Cold Weather Advisory | LWX | 22 hr |
| Feb 5, 1:07 PM EST | Extreme Cold Watch | LWX | 13 hr |
| Feb 5, 1:07 PM EST | Extreme Cold Warning | LWX | 69 hr |
| Feb 6, 1:55 AM EST | Cold Weather Advisory | LWX | 56 hr |
| Feb 6, 1:55 AM EST | High Wind Warning | LWX | 44 hr |
| Feb 7, 2:14 AM EST | Special Weather Statement | LWX | 46 min |
| Feb 7, 2:51 AM EST | Special Weather Statement | LWX | 24 min |
| Feb 7, 6:25 PM EST | Wind Advisory | LWX | 4 hr |
| Feb 8, 12:55 PM EST | Cold Weather Advisory | LWX | 21 hr |
| Feb 20, 12:04 PM EST | Winter Storm Watch | LWX | 27 hr |
| Feb 21, 2:46 PM EST | Winter Weather Advisory | LWX | 51 hr |
| Mar 4, 8:50 PM EST | Dense Fog Advisory | LWX | 13 hr |
| Mar 11, 6:47 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Mar 12, 2:40 AM EDT | Wind Advisory | LWX | 44 hr |
| Mar 15, 12:43 PM EDT | Wind Advisory | LWX | 43 hr |
| Mar 16, 10:03 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 16, 10:52 AM EDT | Tornado Watch | SPC | 8 hr |
| Mar 16, 12:39 PM EDT | Severe Thunderstorm Warning | LWX | 36 min |
| Mar 16, 8:33 PM EDT | Severe Thunderstorm Warning | LWX | 42 min |
| Mar 16, 9:04 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Apr 1, 3:50 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Apr 7, 2:13 AM EDT | Freeze Warning | LWX | 31 hr |
| Apr 8, 12:57 PM EDT | Frost Advisory | LWX | 20 hr |
| Apr 18, 11:59 PM EDT | Freeze Watch | LWX | 24 hr |
| Apr 19, 11:35 PM EDT | Freeze Warning | LWX | 33 hr |
| Apr 29, 8:55 PM EDT | Coastal Flood Advisory | LWX | 13 hr |
| May 10, 3:10 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| May 19, 5:40 PM EDT | Mesoscale Discussion | SPC | 65 min |
| May 20, 12:23 PM EDT | Mesoscale Discussion | SPC | 97 min |
| May 20, 12:39 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 20, 3:09 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jun 1, 8:36 AM EDT | Coastal Flood Advisory | LWX | 3 hr |
| Jun 6, 1:42 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 6, 6:36 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jun 11, 2:24 AM EDT | Heat Advisory | LWX | 18 hr |
| Jun 11, 2:58 PM EDT | Heat Advisory | LWX | 26 hr |
| Jun 11, 3:02 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jun 11, 4:12 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 11, 7:54 PM EDT | Severe Thunderstorm Warning | LWX | 36 min |
| Jun 11, 8:29 PM EDT | Severe Thunderstorm Warning | LWX | 61 min |
| Jun 12, 2:36 PM EDT | Mesoscale Discussion | SPC | 24 min |
| Jun 12, 2:45 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 12, 3:50 PM EDT | Special Weather Statement | LWX | 85 min |
| Jun 12, 4:48 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Jun 12, 6:48 PM EDT | Severe Thunderstorm Warning | LWX | 42 min |
| Jun 12, 7:09 PM EDT | Severe Thunderstorm Warning | LWX | 36 min |
| Jun 12, 7:19 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jun 14, 3:17 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jun 14, 4:18 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 14, 6:22 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jun 17, 3:10 PM EDT | Coastal Flood Advisory | LWX | 24 hr |
| Jun 22, 1:25 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 22, 2:08 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 22, 4:14 PM EDT | Special Weather Statement | LWX | 31 min |
| Jun 22, 4:34 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jun 22, 4:48 PM EDT | Special Weather Statement | LWX | 42 min |
| Jun 22, 5:05 PM EDT | Severe Thunderstorm Warning | LWX | 40 min |
| Jun 22, 6:09 PM EDT | Severe Thunderstorm Warning | LWX | 51 min |
| Jun 26, 3:37 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jun 27, 4:14 PM EDT | Flood Watch | LWX | 4 hr |
| Jun 28, 10:24 AM EDT | Flood Watch | LWX | 4 hr |
| Jun 30, 3:03 AM EDT | Heat Advisory | LWX | 41 hr |
| Jun 30, 3:03 AM EDT | Extreme Heat Watch | LWX | 34 hr |
| Jul 1, 1:32 PM EDT | Extreme Heat Warning | LWX | 30 hr |
| Jul 1, 1:32 PM EDT | Extreme Heat Warning | LWX | 55 hr |
| Jul 2, 8:36 AM EDT | Extreme Heat Watch | LWX | 5 hr |
| Jul 2, 1:32 PM EDT | Extreme Heat Warning | LWX | 54 hr |
| Jul 4, 12:49 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 4, 2:16 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 4, 6:16 PM EDT | Special Weather Statement | LWX | 44 min |
| Jul 4, 6:47 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jul 4, 9:06 PM EDT | Special Weather Statement | LWX | 24 min |
| Jul 5, 1:57 AM EDT | Heat Advisory | LWX | 18 hr |
| Jul 5, 2:08 PM EDT | Flood Watch | LWX | 11 hr |
| Jul 5, 6:00 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 5, 6:44 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 6, 4:09 AM EDT | Flood Watch | LWX | 22 hr |
| Jul 9, 4:10 AM EDT | Flood Watch | LWX | 16 hr |
| Jul 9, 2:05 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Jul 9, 2:30 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 12, 2:45 PM EDT | Coastal Flood Advisory | LWX | 19 hr |
| Jul 14, 12:04 PM EDT | Heat Advisory | LWX | 32 hr |
| Jul 16, 9:55 AM EDT | Heat Advisory | LWX | 10 hr |
| Jul 18, 2:16 AM EDT | Heat Advisory | LWX | 16 hr |
| Jul 18, 9:23 AM EDT | Flood Watch | LWX | 14 hr |
| Jul 18, 12:50 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Jul 18, 2:14 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 18, 3:20 PM EDT | Severe Thunderstorm Warning | LWX | 25 min |
| Jul 21, 1:53 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jul 21, 2:46 PM EDT | Severe Thunderstorm Watch | SPC | 11 hr |
| Jul 21, 7:57 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 26, 9:04 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jul 28, 2:04 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jul 28, 2:48 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 28, 4:20 PM EDT | Tornado Watch | SPC | 5 hr |
| Jul 28, 4:53 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 28, 6:17 PM EDT | Severe Thunderstorm Warning | LWX | 28 min |
| Jul 28, 6:24 PM EDT | Flash Flood Warning | LWX | 79 min |
| Aug 2, 2:43 AM EDT | Flood Watch | LWX | 21 hr |
| Aug 2, 4:34 PM EDT | Flash Flood Warning | LWX | 3 hr |
| Aug 4, 4:09 PM EDT | Flood Watch | LWX | 23 hr |
| Aug 6, 1:39 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 6, 7:08 PM EDT | Special Weather Statement | LWX | 37 min |
| Aug 7, 12:50 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 7, 1:22 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 8, 3:08 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Aug 10, 12:59 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 10, 1:13 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 10, 3:39 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 10, 3:57 PM EDT | Severe Thunderstorm Warning | LWX | 48 min |
| Aug 10, 5:05 PM EDT | Severe Thunderstorm Warning | LWX | 25 min |
| Aug 15, 12:52 PM EDT | Flood Watch | LWX | 35 hr |
| Aug 16, 4:36 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 16, 7:00 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Aug 20, 1:53 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 20, 2:31 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 20, 2:58 PM EDT | Tornado Watch | SPC | 7 hr |
| Aug 27, 1:52 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Aug 27, 3:17 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 27, 7:26 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Aug 30, 7:41 PM EDT | Special Weather Statement | LWX | 49 min |
| Sep 2, 11:09 AM EDT | Mesoscale Discussion | SPC | 66 min |
| Sep 2, 11:46 AM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Sep 2, 1:21 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Sep 3, 6:19 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Sep 3, 8:38 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Sep 3, 11:13 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Sep 3, 11:20 PM EDT | Severe Thunderstorm Warning | LWX | 25 min |
| Sep 3, 11:37 PM EDT | Severe Thunderstorm Warning | LWX | 38 min |
| Sep 3, 11:56 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Sep 4, 12:04 AM EDT | Flash Flood Warning | LWX | 3 hr |
| Sep 4, 2:04 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 12, 7:54 PM EDT | Coastal Flood Advisory | LWX | 6 hr |
| Sep 22, 7:50 AM EDT | Coastal Flood Advisory | LWX | 6 days |
| Sep 22, 2:53 PM EDT | Coastal Flood Watch | LWX | 36 hr |
| Sep 23, 8:42 AM EDT | Coastal Flood Warning | LWX | 42 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 | 14 |
| Severe Thunderstorm Watch | 20 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 44 |
| Special Weather Statement | 9 |
| Flooding | |
| Flash Flood Warning | 3 |
| Flood Watch | 9 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 2 |
| Heat | |
| Extreme Heat Warning | 3 |
| Extreme Heat Watch | 2 |
| Heat Advisory | 7 |
| Cold | |
| Extreme Cold Warning | 1 |
| Freeze Warning | 2 |
| Extreme Cold Watch | 1 |
| Freeze Watch | 1 |
| Cold Weather Advisory | 10 |
| Frost Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
| Coast and beach | |
| Coastal Flood Warning | 1 |
| Coastal Flood Watch | 1 |
| Coastal Flood Advisory | 6 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive2025
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.