Weather alerts in DeKalb County, Alabama, 2010

225 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

DeKalb County and its neighbors

Each county as a circle sized by its count in 2010. Tap one for its archive.

Alerts: 225
Warnings: 84
Watches: 29
Advisories: 35
Busiest month: October43 alerts
Busiest day: October 25, 201013 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

11 of 21 tornado warnings covering DeKalb County in 2010 had a tornado report inside them; 10 of 10 tornado reports fell inside a warning, on average 23 minutes after it went out.

DeKalb County, 2010

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	21	11	48%	10	100%	23 min
Severe thunderstorm warnings	18	5	72%	33	33%	27 min
Flash flood warnings	4	3	25%	2	100%	40 min

Each office's whole area, 2010

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Huntsville, AL: tornado warnings	67	18	73%	30	73%	20 min
NWS Huntsville, AL: severe thunderstorm warnings	197	79	60%	238	49%	19 min
NWS Huntsville, AL: flash flood warnings	59	28	53%	75	87%	95 min

An office's figures cover every county it serves, including across state lines.

Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.

The alerts

Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Lasted
Jan 6, 3:14 PM CST	Winter Weather Advisory	HUN	29 hr
Jan 7, 3:18 PM CST	Wind Chill Advisory	HUN	18 hr
Jan 8, 4:08 AM CST	Wind Chill Advisory	HUN	23 hr
Jan 8, 2:38 PM CST	Wind Chill Advisory	HUN	12 hr
Jan 15, 1:32 PM CST	Red Flag Warning	HUN	3 hr
Jan 17, 8:00 AM CST	Flash Flood Watch	HUN	2 hr
Jan 17, 10:49 PM CST	Dense Fog Advisory	HUN	12 hr
Jan 20, 5:00 AM CST	Flash Flood Watch	HUN	25 hr
Jan 22, 3:07 PM CST	Wind Advisory	HUN	39 hr
Jan 24, 1:24 PM CST	Areal Flood Warning	HUN	12 hr
Jan 25, 1:19 AM CST	Areal Flood Warning	HUN	2 hr
Jan 25, 4:09 AM CST	Wind Advisory	HUN	15 hr
Jan 28, 3:14 PM CST	Winter Storm Warning	HUN	28 hr
Jan 28, 3:14 PM CST	Winter Weather Advisory	HUN	21 hr
Jan 29, 10:45 AM CST	Mesoscale Discussion	SPC	4 hr
Jan 29, 6:48 PM CST	Winter Weather Advisory	HUN	23 hr
Feb 8, 7:26 AM CST	Winter Weather Advisory	HUN	6 hr
Feb 11, 2:54 PM CST	Winter Weather Advisory	HUN	27 hr
Feb 12, 4:02 AM CST	Winter Storm Warning	HUN	7 hr
Feb 14, 3:45 AM CST	Winter Storm Warning	HUN	27 hr
Feb 14, 8:59 AM CST	Winter Weather Advisory	HUN	3 hr
Feb 14, 9:42 PM CST	Mesoscale Discussion	SPC	5 hr
Feb 15, 4:08 AM CST	Winter Weather Advisory	HUN	16 hr
Feb 20, 12:29 PM CST	Red Flag Warning	HUN	6 hr
Feb 20, 8:34 PM CST	Fire Weather Watch	HUN	14 hr
Feb 21, 11:02 AM CST	Red Flag Warning	HUN	7 hr
Feb 27, 3:23 AM CST	Red Flag Warning	HUN	15 hr
Mar 1, 2:47 PM CST	Winter Storm Warning	HUN	13 hr
Mar 1, 2:47 PM CST	Winter Weather Advisory	HUN	24 hr
Mar 5, 4:34 AM CST	Red Flag Warning	HUN	13 hr
Mar 5, 1:32 PM CST	Fire Weather Watch	HUN	16 hr
Mar 6, 5:12 AM CST	Red Flag Warning	HUN	13 hr
Mar 6, 2:56 PM CST	Fire Weather Watch	HUN	15 hr
Mar 7, 5:38 AM CST	Red Flag Warning	HUN	12 hr
Mar 7, 1:52 PM CST	Fire Weather Watch	HUN	15 hr
Mar 8, 5:01 AM CST	Red Flag Warning	HUN	13 hr
Mar 10, 12:49 PM CST	Special Weather Statement	HUN	56 min
Mar 12, 2:10 AM CST	Severe Thunderstorm Watch	SPC	6 hr
Mar 12, 4:49 AM CST	Mesoscale Discussion	SPC	116 min
Mar 12, 6:11 AM CST	Mesoscale Discussion	SPC	64 min
Mar 12, 9:30 AM CST	Special Weather Statement	HUN	60 min
Mar 12, 9:33 AM CST	Severe Thunderstorm Warning	HUN	57 min
Mar 12, 10:13 AM CST	Severe Thunderstorm Warning	HUN	39 min
Mar 25, 7:15 PM CDT	Special Weather Statement	HUN	30 min
Mar 25, 7:45 PM CDT	Special Weather Statement	HUN	30 min
Mar 25, 8:21 PM CDT	Special Weather Statement	HUN	24 min
Mar 28, 10:07 AM CDT	Special Weather Statement	HUN	38 min
Mar 28, 12:30 PM CDT	Special Weather Statement	HUN	30 min
Mar 31, 5:07 AM CDT	Red Flag Warning	HUN	14 hr
Apr 2, 3:59 AM CDT	Red Flag Warning	HUN	15 hr
Apr 3, 8:14 AM CDT	Special Weather Statement	HUN	61 min
Apr 8, 5:30 AM CDT	Special Weather Statement	HUN	30 min
Apr 9, 2:47 PM CDT	Fire Weather Watch	HUN	14 hr
Apr 10, 4:52 AM CDT	Red Flag Warning	HUN	14 hr
Apr 10, 1:46 PM CDT	Fire Weather Watch	HUN	15 hr
Apr 11, 5:10 AM CDT	Red Flag Warning	HUN	14 hr
Apr 11, 3:03 PM CDT	Fire Weather Watch	HUN	14 hr
Apr 12, 5:11 AM CDT	Red Flag Warning	HUN	14 hr
Apr 13, 3:35 AM CDT	Red Flag Warning	HUN	15 hr
Apr 13, 2:26 PM CDT	Fire Weather Watch	HUN	29 hr
Apr 14, 11:18 AM CDT	Red Flag Warning	HUN	8 hr
Apr 17, 4:23 AM CDT	Fire Weather Watch	HUN	24 hr
Apr 18, 4:38 AM CDT	Red Flag Warning	HUN	14 hr
Apr 24, 8:01 AM CDT	Tornado Watch PDS	SPC	5 hr
Apr 24, 9:44 AM CDT	Special Weather Statement	HUN	31 min
Apr 24, 11:08 AM CDT	Special Weather Statement	HUN	37 min
Apr 24, 11:40 AM CDT	Mesoscale Discussion	SPC	95 min
Apr 24, 1:17 PM CDT	Tornado Watch PDS	SPC	8 hr
Apr 24, 5:48 PM CDT	Mesoscale Discussion	SPC	57 min
Apr 24, 7:11 PM CDT	Tornado Watch	SPC	7 hr
Apr 24, 8:11 PM CDT	Tornado Warning	HUN	34 min
Apr 24, 10:15 PM CDT	Tornado Warning	HUN	30 min
Apr 24, 10:40 PM CDT	Tornado Warning	HUN	35 min
Apr 24, 11:12 PM CDT	Tornado Warning	HUN	27 min
Apr 24, 11:21 PM CDT	Tornado Warning	HUN	17 min
Apr 24, 11:27 PM CDT	Mesoscale Discussion	SPC	63 min
Apr 24, 11:42 PM CDT	Tornado Warning	HUN	33 min
Apr 24, 11:44 PM CDT	Flash Flood Warning	HUN	3 hr
Apr 25, 12:09 AM CDT	Tornado Warning	HUN	36 min
Apr 25, 10:32 AM CDT	Areal Flood Warning	HUN	8 hr
Apr 27, 3:56 PM CDT	Special Weather Statement	HUN	34 min
Apr 30, 3:10 PM CDT	Flash Flood Watch	HUN	60 hr
May 2, 10:36 PM CDT	Flash Flood Warning	HUN	5 hr
May 2, 11:22 PM CDT	Special Weather Statement	HUN	38 min
May 3, 2:14 AM CDT	Areal Flood Warning	HUN	12 hr
May 16, 11:33 AM CDT	Special Weather Statement	HUN	42 min
May 16, 12:00 PM CDT	Special Weather Statement	HUN	45 min
May 20, 8:01 PM CDT	Special Weather Statement	HUN	29 min
May 20, 8:13 PM CDT	Mesoscale Discussion	SPC	62 min
May 26, 3:06 PM CDT	Special Weather Statement	HUN	39 min
May 28, 12:52 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
May 28, 1:01 PM CDT	Special Weather Statement	HUN	44 min
May 28, 1:49 PM CDT	Severe Thunderstorm Warning	HUN	26 min
May 28, 2:01 PM CDT	Severe Thunderstorm Warning	HUN	29 min
May 28, 2:29 PM CDT	Flash Flood Warning	HUN	99 min
May 28, 3:22 PM CDT	Mesoscale Discussion	SPC	53 min
May 28, 4:40 PM CDT	Special Weather Statement	HUN	35 min
May 30, 4:52 PM CDT	Special Weather Statement	HUN	38 min
Jun 2, 4:33 AM CDT	Dense Fog Advisory	HUN	4 hr
Jun 5, 7:09 PM CDT	Special Weather Statement	HUN	51 min
Jun 5, 7:56 PM CDT	Special Weather Statement	HUN	49 min
Jun 9, 10:51 AM CDT	Special Weather Statement	HUN	39 min
Jun 9, 11:08 AM CDT	Severe Thunderstorm Warning	HUN	24 min
Jun 9, 12:01 PM CDT	Special Weather Statement	HUN	59 min
Jun 10, 10:19 AM CDT	Special Weather Statement	HUN	41 min
Jun 15, 12:11 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 15, 2:33 PM CDT	Severe Thunderstorm Warning	HUN	33 min
Jun 17, 2:42 PM CDT	Special Weather Statement	HUN	48 min
Jun 19, 10:30 AM CDT	Mesoscale Discussion	SPC	60 min
Jun 19, 12:28 PM CDT	Special Weather Statement	HUN	32 min
Jun 19, 12:37 PM CDT	Severe Thunderstorm Warning	HUN	13 min
Jun 20, 6:00 AM CDT	Dense Fog Advisory	HUN	2 hr
Jun 25, 11:57 AM CDT	Mesoscale Discussion	SPC	3 hr
Jun 25, 3:10 PM CDT	Special Weather Statement	HUN	50 min
Jun 25, 3:12 PM CDT	Severe Thunderstorm Warning	HUN	48 min
Jun 29, 5:11 PM CDT	Special Weather Statement	HUN	34 min
Jul 7, 9:13 PM CDT	Heat Advisory	HUN	31 hr
Jul 9, 6:36 PM CDT	Special Weather Statement	HUN	54 min
Jul 9, 7:06 PM CDT	Special Weather Statement	HUN	39 min
Jul 13, 9:30 AM CDT	Mesoscale Discussion	SPC	90 min
Jul 13, 11:05 AM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 13, 11:38 AM CDT	Severe Thunderstorm Warning	HUN	22 min
Jul 13, 1:08 PM CDT	Special Weather Statement	HUN	22 min
Jul 13, 1:51 PM CDT	Special Weather Statement	HUN	39 min
Jul 13, 2:03 PM CDT	Mesoscale Discussion	SPC	87 min
Jul 16, 5:40 PM CDT	Special Weather Statement	HUN	65 min
Jul 19, 2:44 PM CDT	Heat Advisory	HUN	21 hr
Jul 20, 3:17 AM CDT	Excessive Heat Watch	HUN	34 hr
Jul 21, 12:58 PM CDT	Heat Advisory	HUN	31 hr
Jul 21, 2:13 PM CDT	Heat Advisory	HUN	54 hr
Jul 23, 3:55 AM CDT	Heat Advisory	HUN	64 hr
Jul 25, 4:35 PM CDT	Special Weather Statement	HUN	25 min
Jul 26, 12:26 PM CDT	Heat Advisory	HUN	6 hr
Jul 26, 2:49 PM CDT	Special Weather Statement	HUN	26 min
Jul 26, 3:07 PM CDT	Special Weather Statement	HUN	23 min
Jul 26, 3:14 PM CDT	Severe Thunderstorm Warning	HUN	46 min
Jul 26, 3:21 PM CDT	Severe Thunderstorm Warning	HUN	39 min
Jul 26, 4:11 PM CDT	Flash Flood Warning	HUN	118 min
Jul 26, 4:16 PM CDT	Severe Thunderstorm Warning	HUN	36 min
Jul 30, 11:18 AM CDT	Heat Advisory	HUN	6 days
Aug 1, 2:13 PM CDT	Mesoscale Discussion	SPC	62 min
Aug 5, 1:01 PM CDT	Special Weather Statement	HUN	44 min
Aug 5, 2:12 PM CDT	Special Weather Statement	HUN	33 min
Aug 5, 3:01 PM CDT	Special Weather Statement	HUN	29 min
Aug 5, 3:34 PM CDT	Special Weather Statement	HUN	41 min
Aug 5, 4:25 PM CDT	Severe Thunderstorm Warning	HUN	23 min
Aug 6, 2:27 PM CDT	Severe Thunderstorm Warning	HUN	48 min
Aug 8, 3:35 PM CDT	Heat Advisory	HUN	8 days
Aug 9, 2:14 PM CDT	Special Weather Statement	HUN	31 min
Aug 16, 6:16 PM CDT	Special Weather Statement	HUN	44 min
Aug 18, 10:30 AM CDT	Flash Flood Watch	HUN	11 hr
Aug 21, 3:57 AM CDT	Heat Advisory	HUN	38 hr
Sep 12, 4:06 AM CDT	Dense Fog Advisory	HUN	4 hr
Sep 22, 5:50 AM CDT	Red Flag Warning	HUN	12 hr
Sep 22, 4:27 PM CDT	Special Weather Statement	HUN	33 min
Sep 23, 4:12 AM CDT	Red Flag Warning	HUN	14 hr
Sep 27, 10:56 PM CDT	Dense Fog Advisory	HUN	12 hr
Oct 1, 2:19 AM CDT	Red Flag Warning	HUN	16 hr
Oct 5, 2:44 PM CDT	Fire Weather Watch	HUN	12 hr
Oct 6, 2:45 AM CDT	Red Flag Warning	HUN	16 hr
Oct 13, 2:42 PM CDT	Fire Weather Watch	HUN	24 hr
Oct 13, 2:42 PM CDT	Red Flag Warning	HUN	28 hr
Oct 14, 2:25 PM CDT	Red Flag Warning	HUN	27 hr
Oct 21, 11:16 AM CDT	Red Flag Warning	HUN	7 hr
Oct 22, 3:51 AM CDT	Fire Weather Watch	HUN	18 hr
Oct 22, 1:11 PM CDT	Red Flag Warning	HUN	5 hr
Oct 22, 9:42 PM CDT	Red Flag Warning	HUN	20 hr
Oct 24, 8:23 PM CDT	Mesoscale Discussion	SPC	67 min
Oct 24, 8:46 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Oct 24, 11:35 PM CDT	Mesoscale Discussion	SPC	55 min
Oct 24, 11:55 PM CDT	Severe Thunderstorm Warning	HUN	35 min
Oct 25, 1:33 AM CDT	Tornado Watch	SPC	8 hr
Oct 25, 3:37 AM CDT	Tornado Warning	HUN	23 min
Oct 25, 3:54 AM CDT	Tornado Warning	HUN	21 min
Oct 25, 4:07 AM CDT	Mesoscale Discussion	SPC	113 min
Oct 25, 4:08 AM CDT	Tornado Warning	HUN	22 min
Oct 25, 4:08 AM CDT	Tornado Warning	HUN	19 min
Oct 25, 4:26 AM CDT	Tornado Warning	HUN	7 min
Oct 25, 10:10 AM CDT	Special Weather Statement	HUN	20 min
Oct 25, 3:30 PM CDT	Wind Advisory	HUN	28 hr
Oct 26, 9:27 AM CDT	Tornado Watch PDS	SPC	11 hr
Oct 26, 11:57 AM CDT	Mesoscale Discussion	SPC	93 min
Oct 26, 3:04 PM CDT	Special Weather Statement	HUN	41 min
Oct 26, 3:44 PM CDT	Mesoscale Discussion	SPC	61 min
Oct 26, 4:13 PM CDT	Tornado Warning	HUN	47 min
Oct 26, 4:57 PM CDT	Tornado Warning	HUN	18 min
Oct 26, 5:06 PM CDT	Tornado Warning	HUN	24 min
Oct 26, 5:39 PM CDT	Tornado Warning	HUN	51 min
Oct 26, 6:13 PM CDT	Tornado Warning	HUN	32 min
Oct 26, 6:29 PM CDT	Tornado Warning	HUN	31 min
Oct 26, 6:32 PM CDT	Mesoscale Discussion	SPC	58 min
Oct 26, 6:40 PM CDT	Tornado Warning	HUN	23 min
Oct 26, 6:43 PM CDT	Tornado Warning	HUN	32 min
Oct 26, 7:15 PM CDT	Special Weather Statement	HUN	30 min
Oct 26, 7:30 PM CDT	Severe Thunderstorm Warning	HUN	29 min
Oct 27, 2:12 AM CDT	Special Weather Statement	HUN	33 min
Oct 28, 3:46 AM CDT	Red Flag Warning	HUN	14 hr
Oct 29, 3:03 AM CDT	Red Flag Warning	HUN	15 hr
Oct 29, 2:08 PM CDT	Fire Weather Watch	HUN	14 hr
Oct 30, 4:09 AM CDT	Red Flag Warning	HUN	14 hr
Nov 4, 2:36 PM CDT	Freeze Warning	HUN	41 hr
Nov 6, 4:00 AM CDT	Freeze Warning	HUN	29 hr
Nov 9, 12:20 PM CST	Red Flag Warning	HUN	6 hr
Nov 9, 2:39 PM CST	Red Flag Warning	HUN	13 hr
Nov 14, 10:08 PM CST	Dense Fog Advisory	HUN	9 hr
Nov 23, 10:23 AM CST	Special Weather Statement	HUN	37 min
Nov 23, 7:43 PM CST	Dense Fog Advisory	HUN	11 hr
Nov 25, 10:32 PM CST	Special Weather Statement	HUN	43 min
Nov 25, 10:37 PM CST	Tornado Warning	HUN	23 min
Nov 25, 11:34 PM CST	Special Weather Statement	HUN	26 min
Nov 29, 10:57 PM CST	Mesoscale Discussion	SPC	93 min
Nov 29, 11:41 PM CST	Tornado Watch	SPC	4 hr
Nov 30, 3:17 AM CST	Mesoscale Discussion	SPC	58 min
Nov 30, 3:49 AM CST	Tornado Watch	SPC	8 hr
Nov 30, 6:30 AM CST	Mesoscale Discussion	SPC	90 min
Nov 30, 7:54 AM CST	Special Weather Statement	HUN	66 min
Nov 30, 8:33 AM CST	Severe Thunderstorm Warning	HUN	27 min
Nov 30, 9:00 AM CST	Severe Thunderstorm Warning	HUN	15 min
Nov 30, 9:38 AM CST	Mesoscale Discussion	SPC	97 min
Dec 11, 3:15 PM CST	Wind Chill Advisory	HUN	42 hr
Dec 11, 3:15 PM CST	Winter Weather Advisory	HUN	42 hr
Dec 14, 4:39 AM CST	Winter Weather Advisory	HUN	45 hr
Dec 24, 1:19 PM CST	Winter Weather Advisory	HUN	25 hr
Dec 25, 7:54 AM CST	Winter Storm Warning	HUN	7 hr
Dec 26, 8:11 AM CST	Winter Weather Advisory	HUN	10 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	18
Tornado Warning	21
Severe Thunderstorm Watch	4
Tornado Watch	7
Mesoscale Discussion	25
Special Weather Statement	52
Flooding
Areal Flood Warning	4
Flash Flood Warning	4
Flash Flood Watch	4
Winter
Winter Storm Warning	5
Winter Weather Advisory	12
Heat
Excessive Heat Watch	1
Heat Advisory	9
Cold
Freeze Warning	2
Wind Chill Advisory	4
Wind and dust
Wind Advisory	3
Fire
Red Flag Warning	30
Fire Weather Watch	13
Fog and smoke
Dense Fog Advisory	7

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2009 2011

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.