Alert archive / Maryland / Frederick County / 2011

Weather alerts in Frederick County, Maryland, April 2011

61 weather alerts in April 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Alerts
61
Warnings
27
Watches
12
Advisories
2
Busiest day
April 28, 201122 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.

IssuedProductOfficeLasted
Apr 3, 9:19 PM EDTSpecial Weather StatementLWX26 min
Apr 3, 9:46 PM EDTSpecial Weather StatementLWX44 min
Apr 5, 2:18 AM EDTTornado WatchSPC8 hr
Apr 5, 3:34 AM EDTMesoscale DiscussionSPC116 min
Apr 11, 7:22 PM EDTSpecial Weather StatementLWX23 min
Apr 15, 4:34 AM EDTFlash Flood WatchLWX41 hr
Apr 15, 11:54 AM EDTWind AdvisoryLWX29 hr
Apr 16, 12:52 PM EDTMesoscale DiscussionSPC113 min
Apr 16, 1:29 PM EDTTornado WatchSPC8 hr
Apr 16, 3:18 PM EDTSpecial Weather StatementLWX57 min
Apr 16, 3:19 PM EDTSpecial Weather StatementLWX56 min
Apr 16, 4:13 PM EDTSpecial Weather StatementLWX92 min
Apr 16, 4:21 PM EDTSevere Thunderstorm WarningLWX39 min
Apr 16, 4:29 PM EDTMesoscale DiscussionSPC31 min
Apr 16, 4:53 PM EDTAreal Flood WarningLWX5 hr
Apr 16, 4:59 PM EDTSevere Thunderstorm WarningLWX46 min
Apr 16, 6:18 PM EDTRiver Flood WarningLWX59 hr
Apr 16, 6:38 PM EDTMesoscale DiscussionSPC97 min
Apr 16, 7:01 PM EDTSevere Thunderstorm WarningLWX44 min
Apr 16, 7:14 PM EDTTornado WarningLWX31 min
Apr 16, 7:38 PM EDTSevere Thunderstorm WarningLWX52 min
Apr 16, 7:46 PM EDTTornado WarningLWX26 min
Apr 16, 8:12 PM EDTMesoscale DiscussionSPC63 min
Apr 16, 9:20 PM EDTWind AdvisoryLWX22 hr
Apr 16, 9:48 PM EDTAreal Flood WarningLWX13 hr
Apr 16, 10:17 PM EDTRiver Flood WarningLWX36 hr
Apr 17, 4:02 AM EDTSpecial Weather StatementLWX58 min
Apr 19, 9:54 AM EDTFlood WatchLWX8 hr
Apr 21, 2:05 PM EDTFlood WatchLWX44 hr
Apr 23, 4:06 AM EDTFlash Flood WatchLWX18 hr
Apr 24, 2:12 PM EDTMesoscale DiscussionSPC93 min
Apr 24, 3:36 PM EDTSevere Thunderstorm WarningLWX39 min
Apr 24, 3:40 PM EDTSevere Thunderstorm WatchSPC5 hr
Apr 24, 6:10 PM EDTMesoscale DiscussionSPC65 min
Apr 27, 9:51 AM EDTFlash Flood WatchLWX29 hr
Apr 27, 1:23 PM EDTTornado WatchSPC5 hr
Apr 27, 4:39 PM EDTMesoscale DiscussionSPC66 min
Apr 27, 6:00 PM EDTMesoscale DiscussionSPC60 min
Apr 27, 6:15 PM EDTTornado WatchSPC6 hr
Apr 27, 8:19 PM EDTSevere Thunderstorm WarningLWX36 min
Apr 27, 8:28 PM EDTSevere Thunderstorm WarningLWX19 min
Apr 27, 8:56 PM EDTSpecial Weather StatementLWX34 min
Apr 28, 12:27 AM EDTMesoscale DiscussionSPC63 min
Apr 28, 12:41 AM EDTTornado WatchSPC7 hr
Apr 28, 2:59 AM EDTSevere Thunderstorm WarningLWX62 min
Apr 28, 4:24 AM EDTTornado WarningLWX51 min
Apr 28, 5:09 AM EDTSpecial Weather StatementLWX51 min
Apr 28, 5:35 AM EDTTornado WarningLWX26 min
Apr 28, 5:43 AM EDTTornado WarningLWX18 min
Apr 28, 6:37 AM EDTTornado WarningLWX38 min
Apr 28, 7:05 AM EDTTornado WarningLWX25 min
Apr 28, 7:17 AM EDTTornado WarningLWX28 min
Apr 28, 7:27 AM EDTFlash Flood WarningLWX5 hr
Apr 28, 7:38 AM EDTTornado WatchSPC7 hr
Apr 28, 7:55 AM EDTTornado WarningLWX27 min
Apr 28, 8:01 AM EDTFlash Flood WarningLWX119 min
Apr 28, 8:12 AM EDTTornado WarningLWX33 min
Apr 28, 9:14 AM EDTTornado WarningLWX31 min
Apr 28, 9:58 AM EDTAreal Flood WarningLWX3 hr
Apr 28, 10:44 AM EDTMesoscale DiscussionSPC61 min
Apr 28, 12:15 PM EDTAreal Flood WarningLWX3 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

ProductAlerts
Severe storms
Severe Thunderstorm Warning8
Tornado Warning11
Severe Thunderstorm Watch1
Tornado Watch6
Mesoscale Discussion11
Special Weather Statement9
Flooding
Areal Flood Warning4
Flash Flood Warning2
River Flood Warning2
Flash Flood Watch3
Flood Watch2
Wind and dust
Wind Advisory2

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20102012

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.