Alert archive / Alabama / Jefferson County

Weather alerts in Jefferson County, Alabama, 2010

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

Jefferson County and its neighbors

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

Alerts: 259
Warnings: 109
Watches: 49
Advisories: 71
Busiest month: October48 alerts
Busiest day: April 24, 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.

0 of 3 tornado warnings covering Jefferson County in 2010 had a tornado report inside them; 0 of 1 tornado reports fell inside a warning.

Jefferson County, 2010

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	3	0	100%	1	0%
Severe thunderstorm warnings	44	27	39%	35	71%	20 min
Flash flood warnings	9	7	22%	15	80%	56 min

Each office's whole area, 2010

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Birmingham, AL: tornado warnings	86	10	88%	24	71%	17 min
NWS Birmingham, AL: severe thunderstorm warnings	349	184	47%	445	67%	21 min
NWS Birmingham, AL: flash flood warnings	61	30	51%	52	79%	62 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 1, 3:37 PM CST	Fire Weather Watch	BMX	21 hr
Jan 2, 6:15 AM CST	Fire Weather Watch	BMX	57 hr
Jan 2, 1:05 PM CST	Red Flag Warning	BMX	29 hr
Jan 2, 2:31 PM CST	Hard Freeze Watch	BMX	24 hr
Jan 3, 2:28 PM CST	Hard Freeze Watch	BMX	19 hr
Jan 3, 2:28 PM CST	Hard Freeze Warning	BMX	19 hr
Jan 4, 9:12 AM CST	Hard Freeze Watch	BMX	25 hr
Jan 4, 9:12 AM CST	Hard Freeze Warning	BMX	25 hr
Jan 5, 9:46 AM CST	Fire Weather Watch	BMX	18 hr
Jan 5, 10:11 AM CST	Hard Freeze Warning	BMX	24 hr
Jan 6, 3:21 AM CST	Red Flag Warning	BMX	14 hr
Jan 6, 3:56 PM CST	Winter Weather Advisory	BMX	26 hr
Jan 7, 3:11 PM CST	Hard Freeze Warning	BMX	18 hr
Jan 8, 4:03 AM CST	Hard Freeze Watch	BMX	6 hr
Jan 8, 9:44 AM CST	Hard Freeze Warning	BMX	23 hr
Jan 9, 4:12 AM CST	Hard Freeze Watch	BMX	24 hr
Jan 9, 4:12 AM CST	Hard Freeze Warning	BMX	29 hr
Jan 10, 3:49 AM CST	Hard Freeze Warning	BMX	29 hr
Jan 10, 4:05 AM CST	Fire Weather Watch	BMX	10 hr
Jan 10, 2:12 PM CST	Red Flag Warning	BMX	28 hr
Jan 15, 2:54 PM CST	Red Flag Warning	BMX	2 hr
Jan 17, 11:04 PM CST	Dense Fog Advisory	BMX	11 hr
Jan 23, 4:17 AM CST	Wind Advisory	BMX	34 hr
Jan 24, 7:53 AM CST	Severe Thunderstorm Warning	BMX	31 min
Jan 25, 4:25 AM CST	Wind Advisory	BMX	13 hr
Jan 26, 4:37 AM CST	Wind Advisory	BMX	11 hr
Jan 28, 2:36 PM CST	Flash Flood Watch	BMX	35 hr
Feb 4, 7:08 PM CST	Wind Advisory	BMX	11 hr
Feb 4, 10:51 PM CST	Areal Flood Advisory	BMX	114 min
Feb 6, 4:38 AM CST	Wind Advisory	BMX	12 hr
Feb 9, 4:33 AM CST	Wind Advisory	BMX	19 hr
Feb 10, 4:46 AM CST	Wind Advisory	BMX	12 hr
Feb 11, 1:51 PM CST	Winter Storm Warning	BMX	28 hr
Feb 11, 1:51 PM CST	Winter Weather Advisory	BMX	28 hr
Feb 12, 11:46 AM CST	Mesoscale Discussion	SPC	5 hr
Feb 14, 3:37 AM CST	Winter Storm Warning	BMX	24 hr
Feb 14, 3:37 AM CST	Winter Weather Advisory	BMX	24 hr
Feb 15, 3:09 PM CST	Winter Weather Advisory	BMX	7 hr
Feb 20, 3:48 AM CST	Red Flag Warning	BMX	14 hr
Feb 21, 11:59 AM CST	Red Flag Warning	BMX	6 hr
Feb 24, 3:18 PM CST	Fire Weather Watch	BMX	14 hr
Feb 25, 5:38 AM CST	Red Flag Warning	BMX	12 hr
Feb 25, 2:50 PM CST	Fire Weather Watch	BMX	15 hr
Feb 26, 5:55 AM CST	Red Flag Warning	BMX	12 hr
Feb 26, 3:10 PM CST	Fire Weather Watch	BMX	15 hr
Feb 27, 5:49 AM CST	Red Flag Warning	BMX	12 hr
Mar 1, 2:37 PM CST	Winter Weather Advisory	BMX	23 hr
Mar 5, 8:53 AM CST	Fire Weather Watch	BMX	2 hr
Mar 5, 8:53 AM CST	Fire Weather Watch	BMX	8 hr
Mar 5, 11:08 AM CST	Red Flag Warning	BMX	6 hr
Mar 5, 4:58 PM CST	Red Flag Warning	BMX	25 hr
Mar 6, 1:31 PM CST	Fire Weather Watch	BMX	3 hr
Mar 6, 4:43 PM CST	Red Flag Warning	BMX	25 hr
Mar 7, 12:51 PM CST	Fire Weather Watch	BMX	15 hr
Mar 8, 3:41 AM CST	Red Flag Warning	BMX	14 hr
Mar 10, 2:28 AM CST	Areal Flood Advisory	BMX	6 hr
Mar 10, 4:06 AM CST	Flash Flood Watch	BMX	26 hr
Mar 10, 8:58 AM CST	Areal Flood Warning	BMX	4 hr
Mar 10, 12:43 PM CST	Areal Flood Warning	BMX	3 hr
Mar 10, 1:11 PM CST	Areal Flood Warning	BMX	3 hr
Mar 10, 1:37 PM CST	River Flood Warning	BMX	36 hr
Mar 10, 5:15 PM CST	Mesoscale Discussion	SPC	60 min
Mar 10, 8:34 PM CST	River Flood Warning	BMX	48 hr
Mar 12, 1:56 AM CST	Mesoscale Discussion	SPC	2 hr
Mar 12, 2:10 AM CST	Severe Thunderstorm Watch	SPC	6 hr
Mar 12, 4:30 AM CST	Severe Thunderstorm Warning	BMX	45 min
Mar 12, 4:49 AM CST	Mesoscale Discussion	SPC	116 min
Mar 12, 5:15 AM CST	Severe Thunderstorm Warning	BMX	45 min
Mar 12, 5:44 AM CST	Flash Flood Warning	BMX	86 min
Mar 25, 1:49 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Mar 25, 4:50 PM CDT	Mesoscale Discussion	SPC	85 min
Mar 29, 3:33 AM CDT	Wind Advisory	BMX	14 hr
Apr 2, 11:16 AM CDT	Red Flag Warning	BMX	7 hr
Apr 9, 3:36 PM CDT	Frost Advisory	BMX	16 hr
Apr 10, 3:34 AM CDT	Red Flag Warning	BMX	15 hr
Apr 11, 3:38 AM CDT	Red Flag Warning	BMX	15 hr
Apr 12, 5:01 AM CDT	Red Flag Warning	BMX	14 hr
Apr 12, 7:07 PM CDT	Fire Weather Watch	BMX	10 hr
Apr 13, 5:01 AM CDT	Red Flag Warning	BMX	14 hr
Apr 17, 10:56 PM CDT	Red Flag Warning	BMX	20 hr
Apr 24, 4:15 AM CDT	Wind Advisory	BMX	20 hr
Apr 24, 7:43 AM CDT	Mesoscale Discussion	SPC	2 hr
Apr 24, 8:01 AM CDT	Tornado Watch PDS	SPC	5 hr
Apr 24, 8:13 AM CDT	Severe Thunderstorm Warning	BMX	47 min
Apr 24, 8:37 AM CDT	Severe Thunderstorm Warning	BMX	38 min
Apr 24, 8:56 AM CDT	Severe Thunderstorm Warning	BMX	19 min
Apr 24, 10:28 AM CDT	Mesoscale Discussion	SPC	92 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, 2:01 PM CDT	Mesoscale Discussion	SPC	89 min
Apr 24, 2:19 PM CDT	Areal Flood Advisory	BMX	116 min
Apr 24, 2:55 PM CDT	Flash Flood Warning	BMX	3 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, 10:22 PM CDT	Tornado Warning Emergency	BMX	38 min
Apr 24, 11:27 PM CDT	Mesoscale Discussion	SPC	63 min
Apr 24, 11:41 PM CDT	Severe Thunderstorm Warning	BMX	38 min
Apr 25, 4:02 AM CDT	Wind Advisory	BMX	13 hr
Apr 26, 6:37 AM CDT	Wind Advisory	BMX	11 hr
Apr 27, 4:06 AM CDT	Wind Advisory	BMX	15 hr
May 1, 6:18 AM CDT	Wind Advisory	BMX	16 hr
May 1, 3:23 PM CDT	Flash Flood Watch	BMX	52 hr
May 2, 3:32 AM CDT	Wind Advisory	BMX	21 hr
May 4, 3:33 AM CDT	Dense Fog Advisory	BMX	4 hr
May 20, 12:44 PM CDT	Severe Thunderstorm Watch	SPC	9 hr
May 20, 6:04 PM CDT	Severe Thunderstorm Warning	BMX	41 min
May 20, 6:37 PM CDT	Severe Thunderstorm Warning	BMX	38 min
May 20, 7:13 PM CDT	Severe Thunderstorm Warning	BMX	32 min
May 20, 7:43 PM CDT	Severe Thunderstorm Warning	BMX	47 min
May 21, 8:29 AM CDT	Severe Thunderstorm Warning	BMX	46 min
May 21, 8:35 AM CDT	Mesoscale Discussion	SPC	85 min
May 21, 9:07 AM CDT	Severe Thunderstorm Warning	BMX	53 min
May 21, 9:49 AM CDT	Flash Flood Warning	BMX	4 hr
May 24, 10:19 PM CDT	Areal Flood Advisory	BMX	3 hr
May 28, 4:10 PM CDT	Severe Thunderstorm Warning	BMX	35 min
May 28, 4:31 PM CDT	Areal Flood Advisory	BMX	119 min
May 30, 11:40 AM CDT	Areal Flood Advisory	BMX	2 hr
Jun 1, 3:27 PM CDT	Areal Flood Advisory	BMX	2 hr
Jun 2, 6:01 PM CDT	Areal Flood Advisory	BMX	119 min
Jun 2, 8:10 PM CDT	Areal Flood Advisory	BMX	2 hr
Jun 2, 8:34 PM CDT	Flash Flood Warning	BMX	116 min
Jun 4, 12:44 PM CDT	Areal Flood Advisory	BMX	2 hr
Jun 4, 1:11 PM CDT	Flash Flood Warning	BMX	3 hr
Jun 14, 4:30 PM CDT	Severe Thunderstorm Warning	BMX	15 min
Jun 14, 4:37 PM CDT	Areal Flood Advisory	BMX	3 hr
Jun 15, 12:11 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 15, 12:26 PM CDT	Severe Thunderstorm Warning	BMX	34 min
Jun 15, 12:28 PM CDT	Areal Flood Advisory	BMX	2 hr
Jun 15, 12:49 PM CDT	Severe Thunderstorm Warning	BMX	26 min
Jun 15, 12:52 PM CDT	Flash Flood Warning	BMX	3 hr
Jun 15, 1:24 PM CDT	Severe Thunderstorm Warning	BMX	36 min
Jun 15, 1:49 PM CDT	Areal Flood Advisory	BMX	116 min
Jun 15, 1:57 PM CDT	Severe Thunderstorm Warning	BMX	33 min
Jun 15, 2:10 PM CDT	Flash Flood Warning	BMX	3 hr
Jun 15, 2:12 PM CDT	Severe Thunderstorm Warning	BMX	33 min
Jun 15, 2:46 PM CDT	Areal Flood Advisory	BMX	3 hr
Jun 15, 6:50 PM CDT	Areal Flood Advisory	BMX	115 min
Jun 17, 4:53 PM CDT	Severe Thunderstorm Warning	BMX	52 min
Jun 17, 7:52 PM CDT	Areal Flood Advisory	BMX	113 min
Jun 18, 8:02 PM CDT	Areal Flood Advisory	BMX	118 min
Jun 18, 8:17 PM CDT	Flash Flood Warning	BMX	98 min
Jun 19, 10:30 AM CDT	Mesoscale Discussion	SPC	60 min
Jun 19, 12:13 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 19, 12:22 PM CDT	Severe Thunderstorm Warning	BMX	23 min
Jun 19, 12:26 PM CDT	Severe Thunderstorm Warning	BMX	34 min
Jun 19, 12:39 PM CDT	Severe Thunderstorm Warning	BMX	36 min
Jun 19, 1:10 PM CDT	Areal Flood Advisory	BMX	2 hr
Jun 25, 11:57 AM CDT	Mesoscale Discussion	SPC	3 hr
Jun 25, 2:06 PM CDT	Severe Thunderstorm Warning	BMX	54 min
Jun 26, 1:38 PM CDT	Severe Thunderstorm Warning	BMX	52 min
Jun 27, 5:51 PM CDT	Areal Flood Advisory	BMX	54 min
Jun 29, 6:35 PM CDT	Areal Flood Advisory	BMX	115 min
Jul 8, 10:17 PM CDT	Areal Flood Advisory	BMX	118 min
Jul 8, 10:50 PM CDT	Flash Flood Warning	BMX	115 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, 2:03 PM CDT	Mesoscale Discussion	SPC	87 min
Jul 15, 7:08 PM CDT	Areal Flood Advisory	BMX	2 hr
Jul 16, 3:44 PM CDT	Severe Thunderstorm Warning	BMX	46 min
Jul 16, 4:35 PM CDT	Areal Flood Advisory	BMX	115 min
Jul 21, 3:26 PM CDT	Heat Advisory	BMX	4 days
Jul 30, 4:27 AM CDT	Heat Advisory	BMX	3 days
Aug 2, 2:31 PM CDT	Excessive Heat Warning	BMX	3 days
Aug 2, 2:31 PM CDT	Heat Advisory	BMX	13 hr
Aug 2, 3:19 PM CDT	Severe Thunderstorm Warning	BMX	41 min
Aug 3, 3:26 AM CDT	Heat Advisory	BMX	24 hr
Aug 4, 3:33 AM CDT	Heat Advisory	BMX	63 hr
Aug 5, 6:38 PM CDT	Areal Flood Advisory	BMX	67 min
Aug 13, 4:26 AM CDT	Heat Advisory	BMX	33 hr
Aug 14, 8:22 AM CDT	Areal Flood Advisory	BMX	3 hr
Aug 15, 5:01 PM CDT	Severe Thunderstorm Warning	BMX	17 min
Aug 21, 11:34 AM CDT	Heat Advisory	BMX	34 hr
Sep 29, 3:45 PM CDT	Red Flag Warning	BMX	26 hr
Sep 30, 3:30 PM CDT	Fire Weather Watch	BMX	14 hr
Oct 1, 5:21 AM CDT	Red Flag Warning	BMX	13 hr
Oct 2, 3:02 PM CDT	Fire Weather Watch	BMX	13 hr
Oct 3, 3:39 AM CDT	Red Flag Warning	BMX	14 hr
Oct 3, 2:18 PM CDT	Red Flag Warning	BMX	28 hr
Oct 6, 4:19 AM CDT	Red Flag Warning	BMX	14 hr
Oct 13, 3:48 AM CDT	Dense Fog Advisory	BMX	7 hr
Oct 13, 4:01 AM CDT	Fire Weather Watch	BMX	11 hr
Oct 13, 3:03 PM CDT	Fire Weather Watch	BMX	24 hr
Oct 13, 3:03 PM CDT	Red Flag Warning	BMX	27 hr
Oct 14, 2:48 PM CDT	Red Flag Warning	BMX	28 hr
Oct 16, 3:17 PM CDT	Frost Advisory	BMX	17 hr
Oct 22, 3:31 PM CDT	Fire Weather Watch	BMX	14 hr
Oct 23, 5:05 AM CDT	Red Flag Warning	BMX	13 hr
Oct 24, 7:19 PM CDT	Severe Thunderstorm Warning	BMX	41 min
Oct 24, 7:53 PM CDT	Severe Thunderstorm Warning	BMX	52 min
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, 8:47 PM CDT	Severe Thunderstorm Warning	BMX	43 min
Oct 24, 10:23 PM CDT	Severe Thunderstorm Warning	BMX	52 min
Oct 24, 10:55 PM CDT	Severe Thunderstorm Warning	BMX	29 min
Oct 24, 10:59 PM CDT	Severe Thunderstorm Warning	BMX	46 min
Oct 24, 11:35 PM CDT	Mesoscale Discussion	SPC	55 min
Oct 25, 1:33 AM CDT	Tornado Watch	SPC	8 hr
Oct 25, 3:00 AM CDT	Severe Thunderstorm Warning	BMX	45 min
Oct 25, 3:42 AM CDT	Severe Thunderstorm Warning	BMX	48 min
Oct 25, 4:07 AM CDT	Mesoscale Discussion	SPC	113 min
Oct 25, 8:01 PM CDT	Wind Advisory	BMX	22 hr
Oct 26, 9:27 AM CDT	Tornado Watch PDS	SPC	11 hr
Oct 26, 2:59 PM CDT	Tornado Watch	SPC	5 hr
Oct 26, 6:32 PM CDT	Mesoscale Discussion	SPC	58 min
Oct 26, 6:49 PM CDT	Tornado Warning	BMX	41 min
Oct 26, 7:41 PM CDT	Tornado Warning	BMX	17 min
Oct 26, 8:03 PM CDT	Tornado Watch	SPC	8 hr
Oct 26, 8:35 PM CDT	Severe Thunderstorm Warning	BMX	40 min
Oct 26, 9:14 PM CDT	Severe Thunderstorm Warning	BMX	46 min
Oct 26, 9:17 PM CDT	Areal Flood Advisory	BMX	118 min
Oct 26, 9:36 PM CDT	Severe Thunderstorm Warning	BMX	24 min
Oct 26, 9:59 PM CDT	Severe Thunderstorm Warning	BMX	61 min
Oct 26, 10:51 PM CDT	Mesoscale Discussion	SPC	54 min
Oct 27, 5:29 AM CDT	Mesoscale Discussion	SPC	61 min
Oct 27, 5:48 AM CDT	Tornado Watch	SPC	6 hr
Oct 27, 7:54 AM CDT	Mesoscale Discussion	SPC	96 min
Oct 27, 11:18 AM CDT	Areal Flood Advisory	BMX	117 min
Oct 27, 2:41 PM CDT	Mesoscale Discussion	SPC	64 min
Oct 28, 5:29 AM CDT	Red Flag Warning	BMX	14 hr
Oct 28, 3:13 PM CDT	Fire Weather Watch	BMX	12 hr
Oct 29, 3:29 AM CDT	Frost Advisory	BMX	30 hr
Oct 29, 3:29 AM CDT	Red Flag Warning	BMX	16 hr
Nov 4, 5:07 AM CDT	Freeze Watch	BMX	23 hr
Nov 4, 5:07 AM CDT	Wind Advisory	BMX	14 hr
Nov 5, 4:25 AM CDT	Freeze Watch	BMX	22 hr
Nov 5, 4:25 AM CDT	Freeze Warning	BMX	29 hr
Nov 5, 3:09 PM CDT	Freeze Watch	BMX	37 hr
Nov 6, 2:50 AM CDT	Freeze Warning	BMX	30 hr
Nov 7, 3:00 AM CST	Freeze Warning	BMX	29 hr
Nov 8, 3:13 AM CST	Frost Advisory	BMX	29 hr
Nov 13, 5:08 AM CST	Red Flag Warning	BMX	12 hr
Nov 16, 5:47 AM CST	Wind Advisory	BMX	12 hr
Nov 16, 7:49 AM CST	Special Weather Statement	BMX	41 min
Nov 23, 6:07 PM CST	Dense Fog Advisory	BMX	15 hr
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, 3:39 AM CST	Mesoscale Discussion	SPC	96 min
Nov 30, 3:49 AM CST	Tornado Watch	SPC	8 hr
Nov 30, 6:18 AM CST	Severe Thunderstorm Warning	BMX	42 min
Nov 30, 6:30 AM CST	Mesoscale Discussion	SPC	90 min
Nov 30, 6:55 AM CST	Severe Thunderstorm Warning	BMX	50 min
Nov 30, 7:41 AM CST	Severe Thunderstorm Warning	BMX	49 min
Dec 4, 9:08 PM CST	Wind Advisory	BMX	20 hr
Dec 8, 8:43 PM CST	Red Flag Warning	BMX	20 hr
Dec 8, 8:50 PM CST	Hard Freeze Warning	BMX	11 hr
Dec 11, 3:48 PM CST	Hard Freeze Watch	BMX	12 hr
Dec 11, 3:48 PM CST	Wind Advisory	BMX	50 hr
Dec 12, 3:35 AM CST	Hard Freeze Watch	BMX	26 hr
Dec 12, 3:35 AM CST	Hard Freeze Warning	BMX	28 hr
Dec 12, 3:52 AM CST	Wind Chill Advisory	BMX	28 hr
Dec 13, 5:35 AM CST	Hard Freeze Warning	BMX	26 hr
Dec 15, 6:19 AM CST	Freezing Rain Advisory	BMX	12 hr
Dec 24, 9:36 PM CST	Winter Weather Advisory	BMX	24 hr
Dec 25, 10:32 PM CST	Wind Advisory	BMX	19 hr
Dec 26, 4:03 AM CST	Hard Freeze Watch	BMX	27 hr
Dec 26, 9:00 AM CST	Winter Weather Advisory	BMX	6 hr
Dec 27, 6:57 AM CST	Hard Freeze Warning	BMX	25 hr
Dec 27, 8:55 PM CST	Fire Weather Watch	BMX	18 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	44
Tornado Warning	3
Severe Thunderstorm Watch	6
Tornado Watch	10
Mesoscale Discussion	29
Special Weather Statement	1
Flooding
Areal Flood Warning	3
Flash Flood Warning	9
River Flood Warning	2
Flash Flood Watch	3
Areal Flood Advisory	27
Winter
Winter Storm Warning	2
Freezing Rain Advisory	1
Winter Weather Advisory	7
Heat
Excessive Heat Warning	1
Heat Advisory	7
Cold
Freeze Warning	3
Hard Freeze Warning	11
Freeze Watch	3
Hard Freeze Watch	8
Frost Advisory	4
Wind Chill Advisory	1
Wind and dust
Wind Advisory	20
Fire
Red Flag Warning	31
Fire Weather Watch	19
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 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.