Alert archive / Maryland / Frederick County / 2020
Weather alerts in Frederick County, Maryland, August 2020
27 weather alerts in August 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 27
- Warnings
- 11
- Watches
- 6
- Advisories
- 0
- Busiest day
- August 7, 20206 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 1, 4:00 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 1, 7:05 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Aug 2, 3:28 PM EDT | Flash Flood Watch | LWX | 45 hr |
| Aug 5, 10:51 PM EDT | Flash Flood Watch | LWX | 25 hr |
| Aug 6, 8:56 PM EDT | Severe Thunderstorm Warning | LWX | 49 min |
| Aug 6, 9:07 PM EDT | Severe Thunderstorm Warning | LWX | 38 min |
| Aug 7, 3:46 AM EDT | Flash Flood Watch | LWX | 21 hr |
| Aug 7, 1:30 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 7, 2:08 PM EDT | Severe Thunderstorm Warning | LWX | 52 min |
| Aug 7, 2:48 PM EDT | Severe Thunderstorm Warning | LWX | 36 min |
| Aug 11, 3:19 PM EDT | Flash Flood Watch | LWX | 52 hr |
| Aug 12, 1:15 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 12, 6:50 PM EDT | Areal Flood Warning | LWX | 108 min |
| Aug 23, 3:57 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 23, 5:01 PM EDT | Severe Thunderstorm Warning | LWX | 44 min |
| Aug 23, 5:29 PM EDT | Severe Thunderstorm Warning | LWX | 46 min |
| Aug 24, 12:44 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 24, 2:38 PM EDT | Severe Thunderstorm Warning | LWX | 20 min |
| Aug 25, 3:10 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Aug 25, 3:34 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 25, 7:07 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Aug 27, 6:35 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Aug 28, 9:55 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 28, 1:37 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 28, 3:07 PM EDT | Severe Thunderstorm Warning | LWX | 38 min |
| Aug 28, 3:19 PM EDT | Severe Thunderstorm Warning | LWX | 41 min |
| Aug 28, 4:33 PM EDT | Severe Thunderstorm Warning | LWX | 42 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 | 10 |
| Severe Thunderstorm Watch | 2 |
| Mesoscale Discussion | 10 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Watch | 4 |
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20192021
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.