Alert archive / Maryland / Frederick County / 2020
Weather alerts in Frederick County, Maryland, June 2020
25 weather alerts in June 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 25
- Warnings
- 15
- Watches
- 3
- Advisories
- 1
- Busiest day
- June 22, 20208 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 |
|---|---|---|---|
| Jun 3, 3:10 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 4, 2:02 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jun 4, 2:29 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 4, 4:41 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jun 4, 10:10 PM EDT | Severe Thunderstorm Warning | LWX | 25 min |
| Jun 5, 3:40 AM EDT | Flash Flood Watch | LWX | 17 hr |
| Jun 5, 4:28 PM EDT | Areal Flood Warning | LWX | 4 hr |
| Jun 10, 7:23 PM EDT | Severe Thunderstorm Warning | LWX | 37 min |
| Jun 10, 10:06 PM EDT | Severe Thunderstorm Warning | LWX | 24 min |
| Jun 10, 10:24 PM EDT | Severe Thunderstorm Warning | LWX | 26 min |
| Jun 22, 1:58 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 22, 2:39 PM EDT | Severe Thunderstorm Warning | LWX | 35 min |
| Jun 22, 3:41 PM EDT | Severe Thunderstorm Warning | LWX | 49 min |
| Jun 22, 3:45 PM EDT | Severe Thunderstorm Warning | LWX | 24 min |
| Jun 22, 4:12 PM EDT | Severe Thunderstorm Warning | LWX | 48 min |
| Jun 22, 4:14 PM EDT | Severe Thunderstorm Warning | LWX | 46 min |
| Jun 22, 4:54 PM EDT | Severe Thunderstorm Warning | LWX | 51 min |
| Jun 22, 5:58 PM EDT | Severe Thunderstorm Warning | LWX | 47 min |
| Jun 23, 3:08 AM EDT | Dense Fog Advisory | LWX | 6 hr |
| Jun 23, 1:58 PM EDT | Flash Flood Watch | LWX | 10 hr |
| Jun 23, 9:50 PM EDT | Flash Flood Warning | LWX | 2 hr |
| Jun 25, 1:48 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Jun 25, 5:26 PM EDT | Severe Thunderstorm Warning | LWX | 29 min |
| Jun 25, 6:08 PM EDT | Severe Thunderstorm Warning | LWX | 52 min |
| Jun 25, 6:09 PM EDT | Mesoscale Discussion | SPC | 96 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 | 13 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 6 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
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.