Alert archive / Maryland / Frederick County

Weather alerts in Frederick County, Maryland, 2011

260 weather alerts in 2011, 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 2011. Tap one for its archive.

Alerts: 260
Warnings: 94
Watches: 49
Advisories: 30
Busiest month: April61 alerts
Busiest day: April 28, 201122 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.

Issued	Product	Office	Lasted
Jan 7, 6:50 PM EST	Winter Weather Advisory	LWX	35 hr
Jan 10, 9:39 PM EST	Winter Weather Advisory	LWX	55 hr
Jan 17, 2:44 PM EST	Winter Weather Advisory	LWX	20 hr
Jan 17, 10:37 PM EST	Winter Storm Warning	LWX	10 hr
Jan 18, 11:32 PM EST	Freezing Rain Advisory	LWX	6 hr
Jan 20, 8:54 AM EST	Winter Weather Advisory	LWX	24 hr
Jan 25, 10:16 AM EST	Winter Storm Watch	LWX	18 hr
Jan 25, 6:02 PM EST	Winter Storm Warning	LWX	29 hr
Jan 26, 2:19 PM EST	Mesoscale Discussion	SPC	6 hr
Jan 31, 4:07 AM EST	Winter Storm Watch	LWX	32 hr
Jan 31, 2:40 PM EST	Winter Weather Advisory	LWX	21 hr
Feb 1, 11:57 AM EST	Freezing Rain Advisory	LWX	19 hr
Feb 4, 2:44 PM EST	Freezing Rain Advisory	LWX	22 hr
Feb 8, 3:26 AM EST	Wind Advisory	LWX	13 hr
Feb 14, 2:45 AM EST	Wind Advisory	LWX	22 hr
Feb 18, 3:16 AM EST	Fire Weather Watch	LWX	11 hr
Feb 18, 10:30 AM EST	High Wind Watch	LWX	7 hr
Feb 18, 2:03 PM EST	Red Flag Warning	LWX	31 hr
Feb 18, 5:22 PM EST	High Wind Warning	LWX	26 hr
Feb 18, 5:22 PM EST	Wind Advisory	LWX	19 hr
Feb 19, 6:33 PM EST	Wind Advisory	LWX	5 hr
Feb 21, 3:51 AM EST	Winter Storm Watch	LWX	8 hr
Feb 21, 11:57 AM EST	Winter Storm Warning	LWX	18 hr
Feb 21, 5:58 PM EST	Mesoscale Discussion	SPC	4 hr
Feb 21, 6:33 PM EST	Mesoscale Discussion	SPC	5 hr
Feb 24, 4:05 AM EST	High Wind Watch	LWX	10 hr
Feb 24, 1:41 PM EST	Wind Advisory	LWX	24 hr
Feb 24, 8:36 PM EST	High Wind Warning	LWX	22 hr
Feb 28, 8:36 AM EST	Mesoscale Discussion	SPC	24 min
Feb 28, 8:57 AM EST	Tornado Watch	SPC	9 hr
Feb 28, 9:40 AM EST	Severe Thunderstorm Warning	LWX	50 min
Feb 28, 10:17 AM EST	Special Weather Statement	LWX	28 min
Mar 5, 3:16 AM EST	Flood Watch	LWX	43 hr
Mar 6, 2:37 PM EST	Winter Weather Advisory	LWX	12 hr
Mar 6, 10:10 PM EST	River Flood Warning	LWX	23 hr
Mar 8, 3:14 AM EST	Flood Watch	LWX	65 hr
Mar 9, 2:43 PM EST	River Flood Warning	LWX	3 days
Mar 9, 2:57 PM EST	River Flood Warning	LWX	59 hr
Mar 10, 5:34 PM EST	Severe Thunderstorm Warning	LWX	41 min
Mar 10, 6:07 PM EST	Flash Flood Warning	LWX	3 hr
Mar 10, 6:29 PM EST	Flash Flood Warning	LWX	4 hr
Mar 21, 6:07 AM EDT	Special Weather Statement	LWX	23 min
Mar 23, 4:13 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
Mar 23, 6:07 PM EDT	Special Weather Statement	LWX	23 min
Mar 23, 7:34 PM EDT	Special Weather Statement	LWX	56 min
Apr 3, 9:19 PM EDT	Special Weather Statement	LWX	26 min
Apr 3, 9:46 PM EDT	Special Weather Statement	LWX	44 min
Apr 5, 2:18 AM EDT	Tornado Watch	SPC	8 hr
Apr 5, 3:34 AM EDT	Mesoscale Discussion	SPC	116 min
Apr 11, 7:22 PM EDT	Special Weather Statement	LWX	23 min
Apr 15, 4:34 AM EDT	Flash Flood Watch	LWX	41 hr
Apr 15, 11:54 AM EDT	Wind Advisory	LWX	29 hr
Apr 16, 12:52 PM EDT	Mesoscale Discussion	SPC	113 min
Apr 16, 1:29 PM EDT	Tornado Watch	SPC	8 hr
Apr 16, 3:18 PM EDT	Special Weather Statement	LWX	57 min
Apr 16, 3:19 PM EDT	Special Weather Statement	LWX	56 min
Apr 16, 4:13 PM EDT	Special Weather Statement	LWX	92 min
Apr 16, 4:21 PM EDT	Severe Thunderstorm Warning	LWX	39 min
Apr 16, 4:29 PM EDT	Mesoscale Discussion	SPC	31 min
Apr 16, 4:53 PM EDT	Areal Flood Warning	LWX	5 hr
Apr 16, 4:59 PM EDT	Severe Thunderstorm Warning	LWX	46 min
Apr 16, 6:18 PM EDT	River Flood Warning	LWX	59 hr
Apr 16, 6:38 PM EDT	Mesoscale Discussion	SPC	97 min
Apr 16, 7:01 PM EDT	Severe Thunderstorm Warning	LWX	44 min
Apr 16, 7:14 PM EDT	Tornado Warning	LWX	31 min
Apr 16, 7:38 PM EDT	Severe Thunderstorm Warning	LWX	52 min
Apr 16, 7:46 PM EDT	Tornado Warning	LWX	26 min
Apr 16, 8:12 PM EDT	Mesoscale Discussion	SPC	63 min
Apr 16, 9:20 PM EDT	Wind Advisory	LWX	22 hr
Apr 16, 9:48 PM EDT	Areal Flood Warning	LWX	13 hr
Apr 16, 10:17 PM EDT	River Flood Warning	LWX	36 hr
Apr 17, 4:02 AM EDT	Special Weather Statement	LWX	58 min
Apr 19, 9:54 AM EDT	Flood Watch	LWX	8 hr
Apr 21, 2:05 PM EDT	Flood Watch	LWX	44 hr
Apr 23, 4:06 AM EDT	Flash Flood Watch	LWX	18 hr
Apr 24, 2:12 PM EDT	Mesoscale Discussion	SPC	93 min
Apr 24, 3:36 PM EDT	Severe Thunderstorm Warning	LWX	39 min
Apr 24, 3:40 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
Apr 24, 6:10 PM EDT	Mesoscale Discussion	SPC	65 min
Apr 27, 9:51 AM EDT	Flash Flood Watch	LWX	29 hr
Apr 27, 1:23 PM EDT	Tornado Watch	SPC	5 hr
Apr 27, 4:39 PM EDT	Mesoscale Discussion	SPC	66 min
Apr 27, 6:00 PM EDT	Mesoscale Discussion	SPC	60 min
Apr 27, 6:15 PM EDT	Tornado Watch	SPC	6 hr
Apr 27, 8:19 PM EDT	Severe Thunderstorm Warning	LWX	36 min
Apr 27, 8:28 PM EDT	Severe Thunderstorm Warning	LWX	19 min
Apr 27, 8:56 PM EDT	Special Weather Statement	LWX	34 min
Apr 28, 12:27 AM EDT	Mesoscale Discussion	SPC	63 min
Apr 28, 12:41 AM EDT	Tornado Watch	SPC	7 hr
Apr 28, 2:59 AM EDT	Severe Thunderstorm Warning	LWX	62 min
Apr 28, 4:24 AM EDT	Tornado Warning	LWX	51 min
Apr 28, 5:09 AM EDT	Special Weather Statement	LWX	51 min
Apr 28, 5:35 AM EDT	Tornado Warning	LWX	26 min
Apr 28, 5:43 AM EDT	Tornado Warning	LWX	18 min
Apr 28, 6:37 AM EDT	Tornado Warning	LWX	38 min
Apr 28, 7:05 AM EDT	Tornado Warning	LWX	25 min
Apr 28, 7:17 AM EDT	Tornado Warning	LWX	28 min
Apr 28, 7:27 AM EDT	Flash Flood Warning	LWX	5 hr
Apr 28, 7:38 AM EDT	Tornado Watch	SPC	7 hr
Apr 28, 7:55 AM EDT	Tornado Warning	LWX	27 min
Apr 28, 8:01 AM EDT	Flash Flood Warning	LWX	119 min
Apr 28, 8:12 AM EDT	Tornado Warning	LWX	33 min
Apr 28, 9:14 AM EDT	Tornado Warning	LWX	31 min
Apr 28, 9:58 AM EDT	Areal Flood Warning	LWX	3 hr
Apr 28, 10:44 AM EDT	Mesoscale Discussion	SPC	61 min
Apr 28, 12:15 PM EDT	Areal Flood Warning	LWX	3 hr
May 3, 2:27 PM EDT	Mesoscale Discussion	SPC	2 hr
May 6, 6:06 PM EDT	Special Weather Statement	LWX	24 min
May 15, 3:44 PM EDT	Special Weather Statement	LWX	31 min
May 15, 4:08 PM EDT	Special Weather Statement	LWX	52 min
May 17, 3:45 AM EDT	Flash Flood Watch	LWX	44 hr
May 17, 6:27 PM EDT	Mesoscale Discussion	SPC	2 hr
May 18, 6:31 AM EDT	River Flood Warning	LWX	62 hr
May 18, 11:55 AM EDT	Mesoscale Discussion	SPC	65 min
May 18, 12:55 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
May 18, 3:08 PM EDT	Mesoscale Discussion	SPC	67 min
May 18, 3:12 PM EDT	Severe Thunderstorm Warning	LWX	33 min
May 18, 3:44 PM EDT	Severe Thunderstorm Warning	LWX	19 min
May 18, 6:01 PM EDT	Mesoscale Discussion	SPC	89 min
May 18, 10:42 PM EDT	Special Weather Statement	LWX	18 min
May 19, 4:36 AM EDT	Flash Flood Watch	LWX	14 hr
May 19, 6:55 PM EDT	Special Weather Statement	LWX	35 min
May 19, 7:22 PM EDT	Severe Thunderstorm Warning	LWX	38 min
May 23, 10:33 AM EDT	Mesoscale Discussion	SPC	87 min
May 23, 10:48 AM EDT	Severe Thunderstorm Watch	SPC	9 hr
May 23, 2:33 PM EDT	Mesoscale Discussion	SPC	87 min
May 23, 4:40 PM EDT	Mesoscale Discussion	SPC	95 min
May 23, 5:12 PM EDT	Severe Thunderstorm Warning	LWX	48 min
May 26, 6:40 PM EDT	Special Weather Statement	LWX	65 min
May 26, 6:46 PM EDT	Severe Thunderstorm Warning	LWX	59 min
May 27, 12:24 PM EDT	Mesoscale Discussion	SPC	96 min
May 27, 12:57 PM EDT	Severe Thunderstorm Watch	SPC	9 hr
May 27, 6:14 PM EDT	Mesoscale Discussion	SPC	2 hr
May 27, 7:29 PM EDT	Severe Thunderstorm Warning	LWX	46 min
May 27, 7:55 PM EDT	Severe Thunderstorm Warning	LWX	50 min
May 27, 7:59 PM EDT	Special Weather Statement	LWX	46 min
May 27, 8:08 PM EDT	Severe Thunderstorm Warning	LWX	22 min
May 29, 1:46 PM EDT	Heat Advisory	LWX	31 hr
May 30, 8:37 PM EDT	Heat Advisory	LWX	23 hr
May 31, 1:26 PM EDT	Heat Advisory	LWX	31 hr
Jun 1, 1:37 PM EDT	Mesoscale Discussion	SPC	83 min
Jun 1, 2:24 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 7, 1:33 PM EDT	Heat Advisory	LWX	30 hr
Jun 8, 1:28 PM EDT	Heat Advisory	LWX	31 hr
Jun 9, 12:53 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 9, 5:13 PM EDT	Special Weather Statement	LWX	32 min
Jun 9, 6:17 PM EDT	Mesoscale Discussion	SPC	58 min
Jun 9, 6:46 PM EDT	Special Weather Statement	LWX	29 min
Jun 9, 7:10 PM EDT	Special Weather Statement	LWX	35 min
Jun 9, 7:31 PM EDT	Severe Thunderstorm Warning	LWX	44 min
Jun 10, 5:28 PM EDT	Mesoscale Discussion	SPC	92 min
Jun 11, 12:44 PM EDT	Mesoscale Discussion	SPC	91 min
Jun 12, 12:03 PM EDT	Mesoscale Discussion	SPC	87 min
Jun 12, 1:48 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 12, 2:10 PM EDT	Severe Thunderstorm Warning	LWX	50 min
Jun 12, 2:56 PM EDT	Severe Thunderstorm Warning	LWX	34 min
Jun 12, 3:16 PM EDT	Severe Thunderstorm Warning	LWX	44 min
Jun 16, 6:01 PM EDT	Mesoscale Discussion	SPC	89 min
Jun 17, 4:29 PM EDT	Severe Thunderstorm Warning	LWX	33 min
Jun 22, 2:03 PM EDT	Mesoscale Discussion	SPC	117 min
Jun 24, 1:05 PM EDT	Mesoscale Discussion	SPC	2 hr
Jul 2, 7:11 PM EDT	Special Weather Statement	LWX	49 min
Jul 3, 2:41 AM EDT	Special Weather Statement	LWX	34 min
Jul 3, 3:14 AM EDT	Flash Flood Warning	LWX	3 hr
Jul 3, 3:22 PM EDT	Mesoscale Discussion	SPC	53 min
Jul 3, 4:21 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 3, 5:27 PM EDT	Severe Thunderstorm Warning	LWX	48 min
Jul 7, 3:14 PM EDT	Flash Flood Watch	LWX	29 hr
Jul 7, 7:15 PM EDT	Special Weather Statement	LWX	30 min
Jul 8, 11:44 AM EDT	Mesoscale Discussion	SPC	61 min
Jul 8, 1:51 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 8, 3:01 PM EDT	Special Weather Statement	LWX	89 min
Jul 8, 3:24 PM EDT	Flash Flood Warning	LWX	3 hr
Jul 8, 3:33 PM EDT	Flash Flood Warning	LWX	3 hr
Jul 8, 5:52 PM EDT	Mesoscale Discussion	SPC	83 min
Jul 11, 5:47 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
Jul 11, 6:58 PM EDT	Special Weather Statement	LWX	32 min
Jul 11, 7:05 PM EDT	Severe Thunderstorm Warning	LWX	40 min
Jul 11, 7:10 PM EDT	Severe Thunderstorm Warning	LWX	35 min
Jul 11, 7:34 PM EDT	Severe Thunderstorm Warning	LWX	41 min
Jul 11, 7:42 PM EDT	Severe Thunderstorm Warning	LWX	48 min
Jul 11, 7:44 PM EDT	Mesoscale Discussion	SPC	61 min
Jul 13, 1:43 PM EDT	Special Weather Statement	LWX	32 min
Jul 19, 12:12 PM EDT	Excessive Heat Watch	LWX	27 hr
Jul 19, 6:00 PM EDT	Severe Thunderstorm Warning	LWX	45 min
Jul 20, 3:19 PM EDT	Excessive Heat Warning	LWX	31 hr
Jul 20, 3:19 PM EDT	Excessive Heat Warning	LWX	54 hr
Jul 21, 3:38 PM EDT	Excessive Heat Warning	LWX	52 hr
Jul 22, 2:07 PM EDT	Severe Thunderstorm Warning	LWX	38 min
Jul 22, 3:07 PM EDT	Severe Thunderstorm Warning	LWX	45 min
Jul 22, 3:17 PM EDT	Mesoscale Discussion	SPC	58 min
Jul 22, 3:28 PM EDT	Special Weather Statement	LWX	32 min
Jul 23, 3:29 PM EDT	Heat Advisory	LWX	29 hr
Jul 25, 1:12 PM EDT	Mesoscale Discussion	SPC	2 hr
Jul 28, 12:53 PM EDT	Heat Advisory	LWX	31 hr
Jul 29, 6:17 PM EDT	Mesoscale Discussion	SPC	88 min
Aug 1, 3:22 PM EDT	Mesoscale Discussion	SPC	83 min
Aug 1, 6:13 PM EDT	Severe Thunderstorm Warning	LWX	47 min
Aug 13, 2:07 PM EDT	Mesoscale Discussion	SPC	113 min
Aug 14, 3:23 AM EDT	Flash Flood Watch	LWX	20 hr
Aug 14, 3:47 PM EDT	Mesoscale Discussion	SPC	58 min
Aug 14, 7:44 PM EDT	Severe Thunderstorm Warning	LWX	42 min
Aug 14, 9:54 PM EDT	Flash Flood Warning	LWX	3 hr
Aug 18, 5:20 PM EDT	Severe Thunderstorm Warning	LWX	40 min
Aug 18, 6:01 PM EDT	Flash Flood Warning	LWX	81 min
Aug 18, 10:11 PM EDT	Severe Thunderstorm Warning	LWX	49 min
Aug 18, 10:36 PM EDT	Severe Thunderstorm Warning	LWX	39 min
Aug 19, 2:46 PM EDT	Special Weather Statement	LWX	14 min
Aug 21, 11:54 AM EDT	Mesoscale Discussion	SPC	2 hr
Aug 21, 12:52 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Aug 21, 1:40 PM EDT	Severe Thunderstorm Warning	LWX	50 min
Aug 21, 7:12 PM EDT	Mesoscale Discussion	SPC	63 min
Aug 21, 7:53 PM EDT	Special Weather Statement	LWX	7 min
Aug 25, 8:18 AM EDT	Flash Flood Watch	LWX	12 hr
Sep 3, 9:21 AM EDT	Special Weather Statement	LWX	24 min
Sep 4, 11:54 PM EDT	Special Weather Statement	LWX	66 min
Sep 5, 4:06 AM EDT	Flash Flood Watch	LWX	5 days
Sep 6, 12:26 PM EDT	River Flood Watch	LWX	29 hr
Sep 6, 5:24 PM EDT	River Flood Watch	LWX	24 hr
Sep 7, 11:37 PM EDT	Flash Flood Warning	LWX	3 hr
Sep 8, 8:47 AM EDT	River Flood Watch	LWX	5 hr
Sep 8, 10:28 AM EDT	Flash Flood Warning	LWX	9 hr
Sep 8, 1:55 PM EDT	River Flood Warning	LWX	22 hr
Sep 8, 3:23 PM EDT	Special Weather Statement	LWX	97 min
Sep 8, 6:25 PM EDT	Flash Flood Warning	LWX	74 min
Sep 8, 7:01 PM EDT	Flash Flood Warning	LWX	4 hr
Sep 8, 9:50 PM EDT	Areal Flood Warning	LWX	4 hr
Sep 9, 1:47 AM EDT	Areal Flood Warning	LWX	8 hr
Sep 11, 4:13 AM EDT	Flash Flood Watch	LWX	20 hr
Sep 11, 6:38 PM EDT	Mesoscale Discussion	SPC	97 min
Sep 14, 3:22 PM EDT	Mesoscale Discussion	SPC	53 min
Sep 14, 5:34 PM EDT	Severe Thunderstorm Warning	LWX	41 min
Sep 14, 6:17 PM EDT	Special Weather Statement	LWX	43 min
Sep 14, 6:32 PM EDT	Severe Thunderstorm Warning	LWX	43 min
Sep 14, 6:37 PM EDT	Severe Thunderstorm Warning	LWX	38 min
Sep 22, 12:27 AM EDT	Special Weather Statement	LWX	63 min
Sep 22, 11:44 AM EDT	Flash Flood Watch	LWX	32 hr
Sep 23, 5:10 AM EDT	Dense Fog Advisory	LWX	4 hr
Sep 23, 11:13 AM EDT	Flash Flood Warning	LWX	4 hr
Sep 23, 2:57 PM EDT	Areal Flood Warning	LWX	99 min
Sep 23, 9:31 PM EDT	Dense Fog Advisory	LWX	11 hr
Sep 27, 2:15 PM EDT	Flash Flood Watch	LWX	6 hr
Sep 28, 8:56 PM EDT	Special Weather Statement	LWX	34 min
Sep 29, 5:04 AM EDT	Dense Fog Advisory	LWX	4 hr
Oct 26, 4:24 PM EDT	Freeze Watch	LWX	23 hr
Oct 27, 3:08 PM EDT	Frost Advisory	LWX	17 hr
Oct 28, 3:36 AM EDT	Winter Storm Watch	LWX	15 hr
Oct 28, 2:31 PM EDT	Winter Storm Warning	LWX	27 hr
Oct 29, 12:34 AM EDT	Mesoscale Discussion	SPC	6 hr
Oct 29, 5:30 AM EDT	Winter Storm Warning	LWX	13 hr
Oct 29, 7:36 AM EDT	Mesoscale Discussion	SPC	5 hr
Oct 29, 10:32 AM EDT	Freeze Warning	LWX	22 hr
Nov 7, 6:15 AM EST	Dense Fog Advisory	LWX	3 hr
Nov 23, 12:41 AM EST	Areal Flood Warning	LWX	3 hr
Nov 23, 2:44 AM EST	River Flood Warning	LWX	35 hr
Nov 23, 3:12 AM EST	Wind Advisory	LWX	16 hr
Nov 23, 5:47 AM EST	Areal Flood Warning	LWX	3 hr
Dec 6, 8:24 PM EST	Flood Watch	LWX	29 hr
Dec 7, 4:30 AM EST	Winter Weather Advisory	LWX	20 hr
Dec 8, 2:39 AM EST	River Flood Watch	LWX	24 hr

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	40
Tornado Warning	11
Severe Thunderstorm Watch	12
Tornado Watch	7
Mesoscale Discussion	49
Special Weather Statement	38
Flooding
Areal Flood Warning	9
Flash Flood Warning	14
River Flood Warning	8
Flash Flood Watch	12
Flood Watch	5
River Flood Watch	4
Winter
Winter Storm Warning	5
Winter Storm Watch	4
Freezing Rain Advisory	3
Winter Weather Advisory	7
Heat
Excessive Heat Warning	3
Excessive Heat Watch	1
Heat Advisory	7
Cold
Freeze Warning	1
Freeze Watch	1
Frost Advisory	1
Wind and dust
High Wind Warning	2
High Wind Watch	2
Wind Advisory	8
Fire
Red Flag Warning	1
Fire Weather Watch	1
Fog and smoke
Dense Fog Advisory	4

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2010 2012

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.