Alert archive / Maryland / Frederick County / 2017
Weather alerts in Frederick County, Maryland, August 2017
23 weather alerts in August 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 23
- Warnings
- 11
- Watches
- 3
- Advisories
- 1
- Busiest day
- August 12, 20175 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 |
|---|---|---|---|
| Aug 2, 1:30 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 3, 4:17 PM EDT | Severe Thunderstorm Warning | LWX | 21 min |
| Aug 3, 6:28 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Aug 3, 8:11 PM EDT | Severe Thunderstorm Warning | LWX | 26 min |
| Aug 4, 9:22 PM EDT | Severe Thunderstorm Warning | LWX | 23 min |
| Aug 4, 9:49 PM EDT | Severe Thunderstorm Warning | LWX | 41 min |
| Aug 4, 10:26 PM EDT | Severe Thunderstorm Warning | LWX | 49 min |
| Aug 11, 3:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Aug 12, 4:11 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 12, 5:00 PM EDT | Severe Thunderstorm Warning | LWX | 45 min |
| Aug 12, 5:17 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Aug 12, 5:56 PM EDT | Severe Thunderstorm Warning | LWX | 49 min |
| Aug 12, 5:58 PM EDT | Severe Thunderstorm Warning | LWX | 47 min |
| Aug 15, 10:31 PM EDT | Dense Fog Advisory | LWX | 11 hr |
| Aug 18, 12:35 PM EDT | Flash Flood Watch | LWX | 8 hr |
| Aug 18, 1:54 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 18, 2:27 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Aug 18, 4:34 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Aug 19, 8:16 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Aug 19, 8:35 PM EDT | Severe Thunderstorm Warning | LWX | 40 min |
| Aug 21, 2:53 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 21, 7:56 PM EDT | Severe Thunderstorm Warning | LWX | 49 min |
| Aug 21, 8:41 PM EDT | Severe Thunderstorm Warning | LWX | 27 min |
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 | 11 |
| Severe Thunderstorm Watch | 2 |
| Mesoscale Discussion | 8 |
| Flooding | |
| Flash Flood Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20162018
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.