Alert archive / Maryland / Frederick County / 2018
Weather alerts in Frederick County, Maryland, July 2018
22 weather alerts in July 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 22
- Warnings
- 10
- Watches
- 6
- Advisories
- 3
- Busiest day
- July 27, 20186 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 |
|---|---|---|---|
| Jul 1, 2:10 PM EDT | Heat Advisory | LWX | 30 hr |
| Jul 2, 1:40 PM EDT | Heat Advisory | LWX | 30 hr |
| Jul 5, 9:56 AM EDT | Flash Flood Watch | LWX | 17 hr |
| Jul 17, 8:08 PM EDT | Severe Thunderstorm Warning | LWX | 37 min |
| Jul 17, 8:42 PM EDT | Severe Thunderstorm Warning | LWX | 33 min |
| Jul 21, 5:05 AM EDT | Flash Flood Watch | LWX | 21 hr |
| Jul 21, 6:30 PM EDT | Areal Flood Warning | LWX | 38 hr |
| Jul 21, 10:57 PM EDT | Areal Flood Warning | LWX | 33 hr |
| Jul 21, 11:12 PM EDT | Flash Flood Warning | LWX | 3 hr |
| Jul 22, 2:56 AM EDT | River Flood Warning | LWX | 3 days |
| Jul 22, 11:35 AM EDT | Flash Flood Watch | LWX | 17 hr |
| Jul 23, 4:59 AM EDT | Flash Flood Watch | LWX | 68 hr |
| Jul 23, 2:40 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 25, 5:29 PM EDT | Areal Flood Warning | LWX | 18 hr |
| Jul 26, 1:47 AM EDT | Dense Fog Advisory | LWX | 7 hr |
| Jul 26, 7:18 AM EDT | Areal Flood Warning | LWX | 6 hr |
| Jul 27, 4:06 AM EDT | Flash Flood Watch | LWX | 17 hr |
| Jul 27, 1:28 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Jul 27, 1:52 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 27, 4:31 PM EDT | Severe Thunderstorm Warning | LWX | 59 min |
| Jul 27, 4:50 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Jul 27, 5:01 PM EDT | Severe Thunderstorm Warning | LWX | 44 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 | 4 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 3 |
| Flooding | |
| Areal Flood Warning | 4 |
| Flash Flood Warning | 1 |
| River Flood Warning | 1 |
| Flash Flood Watch | 5 |
| Heat | |
| Heat Advisory | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20172019
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.