Loudoun County weather alerts
There are no active weather alerts for Loudoun County, VA right now.
Since 2016 the National Weather Service has issued about 1,361 alerts that included Loudoun County, roughly 136 a year. The most common is the severe thunderstorm warning (449 from 2016 to 2025). The last tornado warning was issued on July 18, 2026. 25 tornadoes have touched down in the county since 1950.
Updated from the National Weather Service · lists refresh hourly; the live map loads current alerts directly from the NWS
No warnings, watches or advisories include Loudoun County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Washington County, Montgomery County, Clarke County, Fauquier County.
Loudoun County alert history
Alert events that included Loudoun County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 449 | 63 | September 4, 2026 |
| Flood Watch | 118 | 5 | August 16, 2026 |
| Severe Thunderstorm Watch | 109 | 21 | October 16, 2026 |
| Flood Warning | 106 | 1 | July 7, 2026 |
| Wind Advisory | 95 | 3 | March 16, 2026 |
| Dense Fog Advisory | 78 | 3 | March 6, 2026 |
| Winter Weather Advisory | 76 | 2 | March 2, 2026 |
| Frost Advisory | 48 | 5 | October 26, 2026 |
| Heat Advisory | 42 | 4 | July 16, 2026 |
| Freeze Warning | 37 | 6 | October 25, 2026 |
| Flash Flood Warning | 27 | 0 | July 12, 2025 |
| Freeze Watch | 25 | 4 | October 18, 2026 |
| Winter Storm Warning | 21 | 2 | February 22, 2026 |
| Tornado Watch | 17 | 2 | March 16, 2026 |
| Red Flag Warning | 16 | 0 | November 16, 2025 |
| Tornado Warning | 16 | 3 | July 18, 2026 |
| Winter Storm Watch | 16 | 2 | February 22, 2026 |
| Fire Weather Watch | 14 | 0 | November 16, 2025 |
| Extreme Heat Watch | 13 | 2 | July 4, 2026 |
| Cold Weather Advisory | 13 | 10 | February 9, 2026 |
| High Wind Warning | 7 | 1 | February 7, 2026 |
| Extreme Heat Warning | 6 | 3 | July 4, 2026 |
| High Wind Watch | 6 | 0 | February 16, 2025 |
| Snow Squall Warning | 4 | 2 | January 1, 2026 |
| Blizzard Warning | 1 | 0 | January 22, 2016 |
| Ice Storm Warning | 1 | 0 | February 13, 2021 |
| Extreme Cold Watch | 0 | 1 | February 7, 2026 |
| Extreme Cold Warning | 0 | 1 | February 7, 2026 |
Tornado history in Loudoun County
25 tornadoes have been recorded in Loudoun County since 1950, injuring 3 people. That ranks 2 of 133 counties in Virginia. The most recent was on August 8, 2024 (rated EF1).
Strongest tornadoes in Loudoun County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| June 24, 1996 | F2 | Loudoun County | 20 mi | 200 yd | 0 | 1 |
| June 3, 1980 | F2 | Loudoun County | 2.7 mi | 100 yd | 0 | 0 |
| September 5, 1979 | F2 | Loudoun County | 0.5 mi | 50 yd | 0 | 2 |
| September 5, 1979 | F2 | Loudoun County | 0.5 mi | 30 yd | 0 | 0 |
| September 17, 2004 | F1 | Loudoun County | 12 mi | 200 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| August 8, 2024 | EF1 | Loudoun County | 4.8 mi | 100 yd | 0 | 0 |
| June 5, 2024 | EF0 | Loudoun County | 1.1 mi | 125 yd | 0 | 0 |
| February 7, 2020 | EF0 | Loudoun County | 3.4 mi | 250 yd | 0 | 0 |
| April 6, 2017 | EF0 | Fairfax County | 3.2 mi | 25 yd | 0 | 0 |
| May 16, 2014 | EF0 | Loudoun County | 0.4 mi | 75 yd | 0 | 0 |
About Loudoun County
- Population: 443,380 (2024 estimate)
- State: Virginia
- NOAA Weather Radio SAME code: 051107 (how to use it)