Alert archive / Maryland / Frederick County

Weather alerts in Frederick County, Maryland, 2012

255 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Frederick County and its neighbors

Each county as a circle sized by its count in 2012. Tap one for its archive.

Alerts
255
Warnings
82
Watches
37
Advisories
47
Busiest month
June44 alerts
Busiest day
September 18, 201217 alerts

Over time

By month

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
Jan 10, 5:22 AM ESTDense Fog AdvisoryLWX4 hr
Jan 12, 1:51 PM ESTWind AdvisoryLWX28 hr
Jan 20, 1:00 PM ESTWinter Weather AdvisoryLWX24 hr
Jan 22, 1:26 PM ESTFreezing Rain AdvisoryLWX22 hr
Jan 23, 8:06 AM ESTDense Fog AdvisoryLWX4 hr
Jan 23, 11:04 AM ESTFreezing Rain AdvisoryLWX114 min
Jan 24, 1:01 AM ESTDense Fog AdvisoryLWX9 hr
Feb 8, 3:27 AM ESTWinter Weather AdvisoryLWX17 hr
Feb 10, 1:56 PM ESTWinter Weather AdvisoryLWX29 hr
Feb 11, 12:38 PM ESTWind AdvisoryLWX17 hr
Feb 11, 2:39 PM ESTSpecial Weather StatementLWX81 min
Feb 23, 10:05 AM ESTFire Weather WatchLWX18 hr
Feb 23, 1:40 PM ESTHigh Wind WatchLWX14 hr
Feb 24, 3:53 AM ESTHigh Wind WarningLWX14 hr
Feb 24, 3:53 AM ESTWind AdvisoryLWX20 hr
Feb 25, 12:08 AM ESTWind AdvisoryLWX3 hr
Feb 25, 2:52 AM ESTWind AdvisoryLWX15 hr
Feb 29, 7:25 PM ESTAreal Flood WarningLWX3 hr
Mar 1, 2:27 AM ESTDense Fog AdvisoryLWX6 hr
Mar 2, 11:53 AM ESTFlood WatchLWX18 hr
Mar 2, 10:41 PM ESTSpecial Weather StatementLWX79 min
Mar 8, 11:21 PM ESTSpecial Weather StatementLWX24 min
Mar 17, 5:11 AM EDTDense Fog AdvisoryLWX3 hr
Mar 21, 5:51 AM EDTDense Fog AdvisoryLWX4 hr
Mar 22, 3:55 AM EDTDense Fog AdvisoryLWX7 hr
Mar 23, 4:05 AM EDTDense Fog AdvisoryLWX6 hr
Mar 25, 2:52 PM EDTFreeze WatchLWX26 hr
Mar 26, 4:10 AM EDTFreeze WarningLWX29 hr
Mar 28, 10:23 AM EDTMesoscale DiscussionSPC2 hr
Mar 29, 1:58 PM EDTFrost AdvisoryLWX19 hr
Apr 2, 12:01 PM EDTFreeze WarningLWX20 hr
Apr 5, 4:31 AM EDTFreeze WatchLWX23 hr
Apr 5, 11:32 AM EDTFreeze WarningLWX21 hr
Apr 6, 3:54 AM EDTFreeze WarningLWX28 hr
Apr 6, 2:25 PM EDTFire Weather WatchLWX14 hr
Apr 7, 4:14 AM EDTFire Weather WatchLWX17 hr
Apr 7, 4:14 AM EDTRed Flag WarningLWX15 hr
Apr 7, 2:47 PM EDTFreeze WarningLWX16 hr
Apr 7, 9:05 PM EDTRed Flag WarningLWX23 hr
Apr 8, 3:28 AM EDTFire Weather WatchLWX22 hr
Apr 8, 8:19 PM EDTRed Flag WarningLWX23 hr
Apr 9, 10:34 AM EDTFire Weather WatchLWX10 hr
Apr 9, 8:39 PM EDTRed Flag WarningLWX27 hr
Apr 10, 3:54 PM EDTFreeze WatchLWX22 hr
Apr 12, 2:54 PM EDTFrost AdvisoryLWX16 hr
Apr 24, 8:01 PM EDTFrost AdvisoryLWX12 hr
Apr 27, 10:03 AM EDTFreeze WatchLWX4 hr
Apr 27, 1:55 PM EDTFreeze WarningLWX19 hr
Apr 29, 8:21 AM EDTDense Fog AdvisoryLWX2 hr
May 2, 4:56 PM EDTMesoscale DiscussionSPC2 hr
May 2, 6:06 PM EDTSevere Thunderstorm WarningLWX39 min
May 3, 8:21 PM EDTSpecial Weather StatementLWX24 min
May 3, 8:49 PM EDTSpecial Weather StatementLWX26 min
May 3, 9:16 PM EDTSpecial Weather StatementLWX29 min
May 3, 9:57 PM EDTSevere Thunderstorm WarningLWX48 min
May 4, 1:26 PM EDTMesoscale DiscussionSPC2 hr
May 22, 11:49 PM EDTSpecial Weather StatementLWX26 min
May 27, 6:34 PM EDTMesoscale DiscussionSPC56 min
May 27, 7:25 PM EDTSevere Thunderstorm WarningLWX50 min
May 27, 8:02 PM EDTSpecial Weather StatementLWX28 min
May 27, 8:08 PM EDTSevere Thunderstorm WarningLWX37 min
May 28, 4:16 AM EDTHeat AdvisoryLWX17 hr
May 29, 4:22 PM EDTMesoscale DiscussionSPC53 min
May 29, 4:33 PM EDTSevere Thunderstorm WatchSPC4 hr
May 29, 4:37 PM EDTSpecial Weather StatementLWX38 min
May 29, 5:20 PM EDTSpecial Weather StatementLWX40 min
May 29, 5:26 PM EDTSevere Thunderstorm WarningLWX49 min
May 29, 5:45 PM EDTFlash Flood WarningLWX5 hr
May 29, 5:50 PM EDTSevere Thunderstorm WarningLWX40 min
May 29, 6:06 PM EDTSpecial Weather StatementLWX39 min
Jun 1, 12:29 PM EDTMesoscale DiscussionSPC61 min
Jun 1, 1:03 PM EDTMesoscale DiscussionSPC87 min
Jun 1, 1:28 PM EDTTornado WatchSPC8 hr
Jun 1, 1:49 PM EDTSevere Thunderstorm WarningLWX41 min
Jun 1, 2:05 PM EDTSevere Thunderstorm WarningLWX40 min
Jun 1, 2:16 PM EDTTornado WarningLWX29 min
Jun 1, 2:35 PM EDTTornado WarningLWX25 min
Jun 1, 2:38 PM EDTSevere Thunderstorm WarningLWX52 min
Jun 1, 2:54 PM EDTSevere Thunderstorm WarningLWX66 min
Jun 1, 3:18 PM EDTFlash Flood WarningLWX6 hr
Jun 1, 3:35 PM EDTMesoscale DiscussionSPC55 min
Jun 1, 3:40 PM EDTFlash Flood WatchLWX8 hr
Jun 1, 5:28 PM EDTTornado WarningLWX32 min
Jun 1, 8:01 PM EDTTornado WatchSPC4 hr
Jun 1, 8:46 PM EDTSevere Thunderstorm WarningLWX44 min
Jun 1, 8:50 PM EDTTornado WarningLWX12 min
Jun 1, 8:55 PM EDTTornado WarningLWX35 min
Jun 1, 9:10 PM EDTAreal Flood WarningLWX6 hr
Jun 2, 3:14 AM EDTAreal Flood WarningLWX4 hr
Jun 3, 1:37 PM EDTMesoscale DiscussionSPC2 hr
Jun 3, 6:20 PM EDTSpecial Weather StatementLWX25 min
Jun 7, 3:39 PM EDTSpecial Weather StatementLWX51 min
Jun 7, 5:50 PM EDTSpecial Weather StatementLWX40 min
Jun 12, 9:28 PM EDTSpecial Weather StatementLWX32 min
Jun 19, 1:57 PM EDTHeat AdvisoryLWX51 hr
Jun 20, 3:21 AM EDTHeat AdvisoryLWX38 hr
Jun 22, 12:18 PM EDTMesoscale DiscussionSPC2 hr
Jun 22, 2:12 PM EDTSevere Thunderstorm WatchSPC7 hr
Jun 22, 4:39 PM EDTSevere Thunderstorm WarningLWX51 min
Jun 22, 5:16 PM EDTSpecial Weather StatementLWX44 min
Jun 22, 5:20 PM EDTSevere Thunderstorm WarningLWX40 min
Jun 22, 5:47 PM EDTSevere Thunderstorm WarningLWX43 min
Jun 22, 6:42 PM EDTMesoscale DiscussionSPC63 min
Jun 28, 2:46 PM EDTHeat AdvisoryLWX30 hr
Jun 29, 4:20 AM EDTSevere Thunderstorm WarningLWX40 min
Jun 29, 6:03 PM EDTMesoscale DiscussionSPC87 min
Jun 29, 6:34 PM EDTSevere Thunderstorm WatchSPC6 hr
Jun 29, 7:51 PM EDTMesoscale DiscussionSPC114 min
Jun 29, 8:53 PM EDTSevere Thunderstorm WarningLWX35 min
Jun 29, 9:34 PM EDTSevere Thunderstorm WarningLWX56 min
Jun 29, 10:10 PM EDTSevere Thunderstorm WarningLWX65 min
Jun 29, 10:16 PM EDTFlash Flood WarningLWX3 hr
Jun 29, 10:17 PM EDTSevere Thunderstorm WarningLWX58 min
Jun 30, 4:19 AM EDTHeat AdvisoryLWX14 hr
Jul 3, 5:58 PM EDTMesoscale DiscussionSPC3 hr
Jul 3, 6:07 PM EDTSevere Thunderstorm WarningLWX38 min
Jul 3, 6:43 PM EDTSevere Thunderstorm WarningLWX18 min
Jul 4, 3:12 PM EDTSpecial Weather StatementLWX3 hr
Jul 4, 4:53 PM EDTSpecial Weather StatementLWX27 min
Jul 5, 4:37 PM EDTMesoscale DiscussionSPC113 min
Jul 5, 9:20 PM EDTExcessive Heat WatchLWX16 hr
Jul 6, 1:49 PM EDTExcessive Heat WarningLWX32 hr
Jul 6, 1:49 PM EDTHeat AdvisoryLWX32 hr
Jul 7, 5:43 PM EDTMesoscale DiscussionSPC62 min
Jul 7, 6:14 PM EDTSevere Thunderstorm WatchSPC3 hr
Jul 8, 12:47 PM EDTMesoscale DiscussionSPC88 min
Jul 8, 1:44 PM EDTSevere Thunderstorm WatchSPC8 hr
Jul 8, 2:17 PM EDTSevere Thunderstorm WarningLWX43 min
Jul 9, 2:22 AM EDTSpecial Weather StatementLWX53 min
Jul 9, 2:48 AM EDTFlash Flood WarningLWX3 hr
Jul 17, 1:40 PM EDTHeat AdvisoryLWX31 hr
Jul 18, 12:41 PM EDTSevere Thunderstorm WatchSPC8 hr
Jul 18, 2:43 PM EDTSpecial Weather StatementLWX32 min
Jul 18, 2:57 PM EDTSevere Thunderstorm WarningLWX48 min
Jul 18, 3:15 PM EDTSevere Thunderstorm WarningLWX45 min
Jul 18, 3:24 PM EDTSevere Thunderstorm WarningLWX30 min
Jul 18, 3:44 PM EDTMesoscale DiscussionSPC91 min
Jul 19, 6:53 PM EDTMesoscale DiscussionSPC97 min
Jul 19, 7:29 PM EDTSpecial Weather StatementLWX46 min
Jul 19, 7:56 PM EDTSpecial Weather StatementLWX49 min
Jul 19, 8:43 PM EDTSpecial Weather StatementLWX47 min
Jul 19, 9:20 PM EDTSevere Thunderstorm WarningLWX40 min
Jul 20, 4:26 AM EDTFlash Flood WatchLWX17 hr
Jul 24, 11:48 AM EDTMesoscale DiscussionSPC87 min
Jul 24, 1:08 PM EDTSevere Thunderstorm WatchSPC6 hr
Jul 24, 3:58 PM EDTSpecial Weather StatementLWX32 min
Jul 24, 4:23 PM EDTSevere Thunderstorm WarningLWX37 min
Jul 25, 2:08 PM EDTHeat AdvisoryLWX30 hr
Jul 26, 3:08 PM EDTMesoscale DiscussionSPC2 hr
Jul 26, 5:54 PM EDTSevere Thunderstorm WatchSPC6 hr
Jul 26, 8:31 PM EDTSevere Thunderstorm WarningLWX44 min
Jul 26, 9:06 PM EDTMesoscale DiscussionSPC84 min
Jul 28, 12:26 PM EDTMesoscale DiscussionSPC2 hr
Jul 28, 1:36 PM EDTSevere Thunderstorm WatchSPC8 hr
Jul 28, 4:18 PM EDTMesoscale DiscussionSPC87 min
Jul 28, 4:28 PM EDTSpecial Weather StatementLWX47 min
Jul 31, 5:04 PM EDTSevere Thunderstorm WarningLWX20 min
Jul 31, 5:25 PM EDTSpecial Weather StatementLWX35 min
Jul 31, 9:48 PM EDTSpecial Weather StatementLWX27 min
Aug 1, 5:35 PM EDTSpecial Weather StatementLWX25 min
Aug 1, 6:04 PM EDTSpecial Weather StatementLWX26 min
Aug 3, 4:15 PM EDTSpecial Weather StatementLWX30 min
Aug 5, 2:49 PM EDTMesoscale DiscussionSPC86 min
Aug 5, 2:56 PM EDTSpecial Weather StatementLWX34 min
Aug 5, 3:21 PM EDTSpecial Weather StatementLWX24 min
Aug 5, 3:33 PM EDTSevere Thunderstorm WarningLWX42 min
Aug 5, 3:36 PM EDTSevere Thunderstorm WatchSPC5 hr
Aug 9, 6:06 PM EDTSpecial Weather StatementLWX39 min
Aug 9, 6:33 PM EDTSpecial Weather StatementLWX42 min
Aug 9, 7:19 PM EDTSevere Thunderstorm WarningLWX41 min
Aug 9, 7:22 PM EDTSpecial Weather StatementLWX53 min
Aug 9, 7:44 PM EDTSevere Thunderstorm WarningLWX46 min
Aug 10, 3:31 PM EDTMesoscale DiscussionSPC89 min
Aug 10, 5:25 PM EDTSevere Thunderstorm WarningLWX50 min
Aug 10, 7:31 PM EDTMesoscale DiscussionSPC119 min
Aug 10, 7:50 PM EDTSpecial Weather StatementLWX25 min
Aug 14, 2:07 PM EDTMesoscale DiscussionSPC113 min
Aug 14, 9:57 PM EDTMesoscale DiscussionSPC2 hr
Aug 14, 10:14 PM EDTSevere Thunderstorm WarningLWX46 min
Aug 19, 1:38 PM EDTSpecial Weather StatementLWX112 min
Aug 26, 12:52 PM EDTMesoscale DiscussionSPC83 min
Aug 26, 2:31 PM EDTSevere Thunderstorm WarningLWX30 min
Aug 26, 2:42 PM EDTFlash Flood WatchLWX7 hr
Aug 26, 3:02 PM EDTSpecial Weather StatementLWX28 min
Aug 26, 3:28 PM EDTSpecial Weather StatementLWX47 min
Aug 26, 5:03 PM EDTSpecial Weather StatementLWX42 min
Sep 1, 5:21 PM EDTSevere Thunderstorm WarningLWX39 min
Sep 1, 5:53 PM EDTSpecial Weather StatementLWX52 min
Sep 8, 11:38 AM EDTMesoscale DiscussionSPC97 min
Sep 8, 12:15 PM EDTSevere Thunderstorm WatchSPC9 hr
Sep 8, 12:35 PM EDTSevere Thunderstorm WarningLWX40 min
Sep 8, 1:09 PM EDTSevere Thunderstorm WarningLWX66 min
Sep 8, 2:10 PM EDTSevere Thunderstorm WarningLWX80 min
Sep 18, 8:49 AM EDTMesoscale DiscussionSPC116 min
Sep 18, 10:54 AM EDTTornado WatchSPC9 hr
Sep 18, 11:07 AM EDTSpecial Weather StatementLWX38 min
Sep 18, 11:13 AM EDTSevere Thunderstorm WarningLWX47 min
Sep 18, 11:19 AM EDTMesoscale DiscussionSPC86 min
Sep 18, 11:39 AM EDTSpecial Weather StatementLWX66 min
Sep 18, 12:19 PM EDTSevere Thunderstorm WarningLWX41 min
Sep 18, 12:29 PM EDTSevere Thunderstorm WarningLWX61 min
Sep 18, 12:39 PM EDTFlash Flood WarningLWX4 hr
Sep 18, 12:59 PM EDTFlash Flood WarningLWX3 hr
Sep 18, 1:10 PM EDTSevere Thunderstorm WarningLWX54 min
Sep 18, 1:27 PM EDTMesoscale DiscussionSPC63 min
Sep 18, 1:37 PM EDTSpecial Weather StatementLWX8 min
Sep 18, 1:54 PM EDTSevere Thunderstorm WarningLWX66 min
Sep 18, 1:56 PM EDTFlash Flood WatchLWX4 hr
Sep 18, 2:38 PM EDTSevere Thunderstorm WarningLWX52 min
Sep 18, 3:53 PM EDTAreal Flood WarningLWX20 hr
Sep 22, 3:09 PM EDTSpecial Weather StatementLWX36 min
Sep 22, 3:09 PM EDTMesoscale DiscussionSPC2 hr
Sep 22, 4:29 PM EDTSpecial Weather StatementLWX31 min
Sep 27, 3:18 PM EDTMesoscale DiscussionSPC117 min
Sep 27, 6:16 PM EDTMesoscale DiscussionSPC29 min
Sep 30, 4:07 PM EDTSpecial Weather StatementLWX23 min
Oct 1, 1:55 AM EDTDense Fog AdvisoryLWX8 hr
Oct 3, 2:41 AM EDTDense Fog AdvisoryLWX7 hr
Oct 11, 2:26 PM EDTFreeze WatchLWX24 hr
Oct 12, 2:00 PM EDTFreeze WarningLWX19 hr
Oct 18, 9:23 PM EDTSpecial Weather StatementLWX37 min
Oct 18, 9:51 PM EDTSpecial Weather StatementLWX24 min
Oct 18, 9:55 PM EDTSevere Thunderstorm WarningLWX30 min
Oct 18, 10:27 PM EDTSevere Thunderstorm WarningLWX37 min
Oct 19, 4:48 PM EDTMesoscale DiscussionSPC87 min
Oct 27, 4:39 AM EDTFlood WatchLWX61 hr
Oct 27, 5:02 PM EDTHigh Wind WatchLWX12 hr
Oct 28, 4:34 AM EDTHigh Wind WarningLWX48 hr
Oct 28, 4:43 PM EDTRiver Flood WarningLWX3 days
Oct 29, 12:00 PM EDTRiver Flood WatchLWX6 hr
Oct 29, 12:54 PM EDTAreal Flood WarningLWX26 hr
Oct 29, 5:06 PM EDTRiver Flood WarningLWX53 hr
Oct 30, 4:13 AM EDTWind AdvisoryLWX6 hr
Nov 4, 3:30 AM ESTFreeze WatchLWX11 hr
Nov 4, 2:43 PM ESTFreeze WarningLWX17 hr
Nov 5, 2:18 PM ESTFreeze WarningLWX19 hr
Nov 12, 10:47 PM ESTSpecial Weather StatementLWX43 min
Nov 21, 7:24 AM ESTDense Fog AdvisoryLWX3 hr
Nov 26, 9:33 PM ESTWinter Weather AdvisoryLWX12 hr
Dec 1, 9:57 PM ESTDense Fog AdvisoryLWX12 hr
Dec 8, 4:13 AM ESTDense Fog AdvisoryLWX5 hr
Dec 9, 7:10 PM ESTDense Fog AdvisoryLWX14 hr
Dec 16, 8:42 PM ESTDense Fog AdvisoryLWX13 hr
Dec 17, 2:16 PM ESTDense Fog AdvisoryLWX13 hr
Dec 20, 2:11 PM ESTHigh Wind WatchLWX23 hr
Dec 20, 2:11 PM ESTWind AdvisoryLWX50 hr
Dec 22, 2:42 AM ESTHigh Wind WarningLWX14 hr
Dec 23, 8:50 PM ESTWinter Weather AdvisoryLWX31 hr
Dec 24, 3:50 PM ESTWinter Storm WatchLWX23 hr
Dec 25, 1:13 AM ESTDense Fog AdvisoryLWX11 hr
Dec 25, 2:29 PM ESTWinter Weather AdvisoryLWX35 hr
Dec 26, 12:48 PM ESTMesoscale DiscussionSPC6 hr
Dec 26, 1:40 PM ESTWind AdvisoryLWX27 hr
Dec 28, 4:30 AM ESTWinter Weather AdvisoryLWX51 hr
Dec 30, 9:31 AM ESTWind AdvisoryLWX5 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 Warning47
Tornado Warning5
Severe Thunderstorm Watch11
Tornado Watch3
Mesoscale Discussion39
Special Weather Statement50
Flooding
Areal Flood Warning5
Flash Flood Warning6
River Flood Warning2
Flash Flood Watch4
Flood Watch2
River Flood Watch1
Winter
Winter Storm Watch1
Freezing Rain Advisory2
Winter Weather Advisory7
Heat
Excessive Heat Warning1
Excessive Heat Watch1
Heat Advisory8
Cold
Freeze Warning9
Freeze Watch6
Frost Advisory3
Wind and dust
High Wind Warning3
High Wind Watch3
Wind Advisory9
Fire
Red Flag Warning4
Fire Weather Watch5
Fog and smoke
Dense Fog Advisory18

The busiest days

Days with the most alerts issued, by UTC date.

  1. September 18, 201217alerts
  2. June 1, 201213alerts
  3. May 29, 20128alerts
  4. June 22, 20127alerts
  5. June 2, 20126alerts
  6. June 30, 20126alerts
  7. July 18, 20126alerts
  8. August 26, 20126alerts
  9. May 4, 20125alerts
  10. August 5, 20125alerts

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20112013

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.