Alert archive / Maryland / Frederick County / 2025
Weather alerts in Frederick County, Maryland, May 2025
34 weather alerts in May 2025, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 34
- Warnings
- 18
- Watches
- 7
- Advisories
- 1
- Busiest day
- May 16, 202510 alerts
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|
| May 3, 2:50 PM EDT | Mesoscale Discussion | SPC | 115 min |
| May 3, 3:27 PM EDT | Severe Thunderstorm Warning | LWX | 48 min |
| May 3, 4:36 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 3, 4:54 PM EDT | Severe Thunderstorm Warning | LWX | 51 min |
| May 3, 5:39 PM EDT | Severe Thunderstorm Warning | LWX | 66 min |
| May 5, 2:16 PM EDT | Mesoscale Discussion | SPC | 119 min |
| May 5, 5:29 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 5, 5:52 PM EDT | Severe Thunderstorm Warning | LWX | 23 min |
| May 5, 6:01 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 5, 6:20 PM EDT | Severe Thunderstorm Warning | LWX | 25 min |
| May 5, 7:19 PM EDT | Severe Thunderstorm Warning | LWX | 26 min |
| May 5, 7:38 PM EDT | Flash Flood Warning | LWX | 3 hr |
| May 5, 8:11 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 5, 10:34 PM EDT | Areal Flood Warning | LWX | 3 hr |
| May 12, 3:10 AM EDT | Flood Watch | LWX | 47 hr |
| May 13, 4:09 PM EDT | River Flood Watch | LWX | 21 days |
| May 14, 4:35 AM EDT | River Flood Warning | LWX | 56 hr |
| May 16, 1:41 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| May 16, 2:32 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 16, 3:24 PM EDT | Severe Thunderstorm Warning | LWX | 36 min |
| May 16, 4:00 PM EDT | Severe Thunderstorm Warning | LWX | 32 min |
| May 16, 4:14 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 16, 4:21 PM EDT | Severe Thunderstorm Warning | LWX | 24 min |
| May 16, 4:30 PM EDT | Severe Thunderstorm Warning | LWX | 45 min |
| May 16, 4:34 PM EDT | Severe Thunderstorm Warning | LWX | 41 min |
| May 16, 5:12 PM EDT | Severe Thunderstorm Warning | LWX | 63 min |
| May 16, 5:14 PM EDT | Severe Thunderstorm Warning | LWX | 63 min |
| May 29, 8:31 PM EDT | Flood Watch | LWX | 27 hr |
| May 30, 3:49 PM EDT | Mesoscale Discussion | SPC | 116 min |
| May 30, 5:01 PM EDT | Tornado Watch | SPC | 7 hr |
| May 30, 7:28 PM EDT | Severe Thunderstorm Warning | LWX | 47 min |
| May 30, 8:01 PM EDT | Severe Thunderstorm Warning | LWX | 29 min |
| May 30, 8:37 PM EDT | Mesoscale Discussion | SPC | 113 min |
| May 30, 8:40 PM EDT | Wind Advisory | LWX | 9 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 | 15 |
| Severe Thunderstorm Watch | 3 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 8 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 1 |
| River Flood Warning | 1 |
| Flood Watch | 2 |
| River Flood Watch | 1 |
| Wind and dust | |
| Wind Advisory | 1 |
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20242026
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.