Alert archive / North Carolina / Henderson County

Weather alerts in Henderson County, North Carolina, 2011

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

Henderson County and its neighbors

Each county as a circle sized by its count in 2011. Tap one for its archive.

Alerts: 255
Warnings: 79
Watches: 36
Advisories: 59
Busiest month: June56 alerts
Busiest day: May 11, 20119 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 4 tornado warnings covering Henderson County in 2011 had a tornado report inside them.

Henderson County, 2011

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	4	0	100%	0
Severe thunderstorm warnings	47	33	30%	24	96%	27 min
Flash flood warnings	7	6	14%	7	100%	133 min

Each office's whole area, 2011

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Greenville-Spartanburg, SC: tornado warnings	42	11	74%	25	96%	21 min
NWS Greenville-Spartanburg, SC: severe thunderstorm warnings	693	551	20%	1,309	89%	26 min
NWS Greenville-Spartanburg, SC: flash flood warnings	31	20	35%	46	85%	105 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, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Lasted
Dec 31, 8:42 PM EST	Lake Wind Advisory	GSP	20 hr
Jan 5, 12:03 PM EST	Winter Weather Advisory	GSP	23 hr
Jan 6, 3:56 AM EST	Winter Weather Advisory	GSP	59 hr
Jan 8, 3:32 AM EST	Lake Wind Advisory	GSP	14 hr
Jan 8, 4:20 AM EST	Winter Storm Watch	GSP	35 hr
Jan 8, 6:24 PM EST	Wind Chill Advisory	GSP	15 hr
Jan 9, 3:53 AM EST	Winter Storm Warning	GSP	53 hr
Jan 11, 3:47 AM EST	Winter Weather Advisory	GSP	56 hr
Jan 12, 2:25 AM EST	Lake Wind Advisory	GSP	23 hr
Jan 17, 2:51 PM EST	Winter Weather Advisory	GSP	18 hr
Jan 20, 3:01 PM EST	Winter Weather Advisory	GSP	13 hr
Feb 1, 4:35 AM EST	Wind Advisory	GSP	43 hr
Feb 3, 3:22 PM EST	Freezing Rain Advisory	GSP	24 hr
Feb 3, 6:54 PM EST	Winter Weather Advisory	GSP	8 hr
Feb 7, 2:57 PM EST	Wind Advisory	GSP	20 hr
Feb 9, 10:58 AM EST	Winter Weather Advisory	GSP	16 hr
Feb 13, 2:42 PM EST	Fire Weather Watch	GSP	12 hr
Feb 14, 2:17 AM EST	Red Flag Warning	GSP	19 hr
Feb 14, 3:40 AM EST	Wind Advisory	GSP	20 hr
Feb 19, 4:24 AM EST	Red Flag Warning	GSP	17 hr
Feb 24, 2:18 PM EST	Lake Wind Advisory	GSP	28 hr
Feb 25, 2:11 AM EST	High Wind Warning	GSP	4 hr
Feb 25, 2:11 AM EST	Lake Wind Advisory	GSP	3 hr
Feb 25, 4:41 AM EST	Wind Advisory	GSP	13 hr
Feb 27, 8:21 PM EST	Lake Wind Advisory	GSP	23 hr
Feb 28, 3:46 AM EST	Wind Advisory	GSP	14 hr
Feb 28, 1:29 PM EST	Tornado Watch	SPC	7 hr
Feb 28, 4:36 PM EST	Mesoscale Discussion	SPC	84 min
Feb 28, 4:38 PM EST	Severe Thunderstorm Warning	GSP	67 min
Mar 5, 3:31 AM EST	Lake Wind Advisory	GSP	37 hr
Mar 5, 8:23 AM EST	River Flood Advisory	GSP	24 hr
Mar 6, 3:53 AM EST	Areal Flood Advisory	GSP	3 hr
Mar 6, 5:19 AM EST	Flash Flood Warning	GSP	6 hr
Mar 6, 8:12 AM EST	River Flood Warning	GSP	56 hr
Mar 6, 11:13 AM EST	Areal Flood Warning	GSP	3 hr
Mar 6, 1:44 PM EST	Areal Flood Advisory	GSP	4 hr
Mar 6, 5:40 PM EST	Areal Flood Advisory	GSP	3 hr
Mar 8, 2:57 AM EST	Flood Watch	GSP	58 hr
Mar 9, 4:17 AM EST	River Flood Warning	GSP	3 days
Mar 9, 11:02 AM EST	Areal Flood Advisory	GSP	6 hr
Mar 9, 12:23 PM EST	Flash Flood Warning	GSP	6 hr
Mar 9, 6:24 PM EST	Areal Flood Warning	GSP	9 hr
Mar 10, 3:08 AM EST	Areal Flood Warning	GSP	9 hr
Mar 10, 4:07 AM EST	Lake Wind Advisory	GSP	38 hr
Mar 22, 3:51 PM EDT	Fire Weather Watch	GSP	11 hr
Mar 23, 2:45 AM EDT	Lake Wind Advisory	GSP	24 hr
Mar 23, 2:54 AM EDT	Red Flag Warning	GSP	17 hr
Mar 23, 3:45 PM EDT	Tornado Watch	SPC	6 hr
Mar 23, 4:48 PM EDT	Mesoscale Discussion	SPC	57 min
Mar 23, 7:10 PM EDT	Mesoscale Discussion	SPC	65 min
Mar 23, 8:39 PM EDT	Mesoscale Discussion	SPC	66 min
Mar 23, 9:41 PM EDT	Tornado Watch	SPC	2 hr
Mar 24, 3:09 AM EDT	Freeze Warning	GSP	30 hr
Mar 24, 3:09 AM EDT	Lake Wind Advisory	GSP	9 hr
Mar 28, 2:51 PM EDT	Frost Advisory	GSP	18 hr
Mar 31, 4:11 AM EDT	Freeze Warning	GSP	29 hr
Apr 1, 2:51 PM EDT	Wind Advisory	GSP	29 hr
Apr 2, 2:53 PM EDT	Freeze Warning	GSP	18 hr
Apr 3, 2:44 PM EDT	Lake Wind Advisory	GSP	51 hr
Apr 4, 10:41 AM EDT	Wind Advisory	GSP	17 hr
Apr 4, 3:01 PM EDT	Freeze Watch	GSP	13 hr
Apr 4, 9:32 PM EDT	Mesoscale Discussion	SPC	58 min
Apr 4, 9:45 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
Apr 4, 11:06 PM EDT	Severe Thunderstorm Warning	GSP	54 min
Apr 4, 11:43 PM EDT	Severe Thunderstorm Warning	GSP	62 min
Apr 4, 11:52 PM EDT	Tornado Warning	GSP	38 min
Apr 5, 4:08 AM EDT	Freeze Warning	GSP	29 hr
Apr 6, 4:44 AM EDT	Frost Advisory	GSP	28 hr
Apr 9, 12:34 PM EDT	Severe Thunderstorm Watch	SPC	4 hr
Apr 9, 2:00 PM EDT	Tornado Watch	SPC	7 hr
Apr 9, 4:21 PM EDT	Mesoscale Discussion	SPC	84 min
Apr 9, 6:16 PM EDT	Tornado Watch	SPC	6 hr
Apr 9, 7:47 PM EDT	Severe Thunderstorm Warning	GSP	36 min
Apr 9, 7:59 PM EDT	Mesoscale Discussion	SPC	61 min
Apr 9, 8:11 PM EDT	Severe Thunderstorm Warning	GSP	39 min
Apr 9, 10:19 PM EDT	Special Weather Statement	GSP	26 min
Apr 10, 3:29 AM EDT	Dense Fog Advisory	GSP	7 hr
Apr 11, 7:42 PM EDT	Mesoscale Discussion	SPC	33 min
Apr 11, 8:08 PM EDT	Tornado Watch	SPC	7 hr
Apr 11, 9:23 PM EDT	Mesoscale Discussion	SPC	97 min
Apr 12, 1:21 AM EDT	Lake Wind Advisory	GSP	19 hr
Apr 12, 2:39 AM EDT	Mesoscale Discussion	SPC	36 min
Apr 13, 2:43 PM EDT	Frost Advisory	GSP	18 hr
Apr 15, 4:10 AM EDT	Lake Wind Advisory	GSP	36 hr
Apr 16, 4:20 AM EDT	Flash Flood Warning	GSP	6 hr
Apr 16, 5:57 AM EDT	Tornado Watch	SPC	8 hr
Apr 16, 7:23 AM EDT	River Flood Warning	GSP	60 hr
Apr 16, 9:48 AM EDT	Areal Flood Warning	GSP	6 hr
Apr 16, 3:31 PM EDT	Areal Flood Advisory	GSP	119 min
Apr 16, 3:52 PM EDT	Lake Wind Advisory	GSP	14 hr
Apr 16, 3:52 PM EDT	Wind Advisory	GSP	4 hr
Apr 20, 7:55 AM EDT	Severe Thunderstorm Watch	SPC	3 hr
Apr 26, 11:31 AM EDT	Flash Flood Watch	GSP	11 hr
Apr 27, 1:33 AM EDT	Severe Thunderstorm Warning	GSP	22 min
Apr 27, 3:27 AM EDT	Lake Wind Advisory	GSP	28 hr
Apr 27, 5:31 PM EDT	Special Weather Statement	GSP	44 min
Apr 27, 6:41 PM EDT	Mesoscale Discussion	SPC	34 min
Apr 27, 6:52 PM EDT	Tornado Watch PDS	SPC	9 hr
Apr 28, 12:09 AM EDT	Mesoscale Discussion	SPC	36 min
Apr 28, 12:56 AM EDT	Tornado Watch	SPC	4 hr
Apr 28, 1:31 AM EDT	Tornado Warning	GSP	44 min
Apr 28, 2:03 AM EDT	Tornado Warning	GSP	42 min
Apr 28, 2:26 AM EDT	Tornado Warning	GSP	49 min
May 3, 4:57 PM EDT	Mesoscale Discussion	SPC	93 min
May 3, 5:14 PM EDT	Special Weather Statement	GSP	46 min
May 3, 5:55 PM EDT	Special Weather Statement	GSP	50 min
May 3, 6:05 PM EDT	Severe Thunderstorm Warning	GSP	55 min
May 3, 6:35 PM EDT	Severe Thunderstorm Warning	GSP	38 min
May 4, 4:17 AM EDT	Frost Advisory	GSP	29 hr
May 10, 3:20 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
May 10, 6:02 PM EDT	Mesoscale Discussion	SPC	58 min
May 10, 9:01 PM EDT	Mesoscale Discussion	SPC	59 min
May 10, 10:18 PM EDT	Mesoscale Discussion	SPC	27 min
May 10, 10:42 PM EDT	Severe Thunderstorm Watch	SPC	4 hr
May 10, 11:22 PM EDT	Severe Thunderstorm Warning	GSP	53 min
May 10, 11:45 PM EDT	Severe Thunderstorm Warning	GSP	60 min
May 11, 12:04 AM EDT	Severe Thunderstorm Warning	GSP	56 min
May 11, 12:14 AM EDT	Mesoscale Discussion	SPC	61 min
May 11, 2:37 AM EDT	Mesoscale Discussion	SPC	23 min
May 11, 6:06 PM EDT	Mesoscale Discussion	SPC	54 min
May 12, 2:15 PM EDT	Special Weather Statement	GSP	45 min
May 12, 3:26 PM EDT	Severe Thunderstorm Warning	GSP	64 min
May 12, 4:04 PM EDT	Severe Thunderstorm Warning	GSP	56 min
May 12, 4:28 PM EDT	Mesoscale Discussion	SPC	2 hr
May 13, 4:30 AM EDT	Dense Fog Advisory	GSP	5 hr
May 13, 3:47 PM EDT	Mesoscale Discussion	SPC	58 min
May 13, 4:44 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
May 22, 5:40 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
May 22, 7:26 PM EDT	Mesoscale Discussion	SPC	2 hr
May 22, 7:41 PM EDT	Severe Thunderstorm Warning	GSP	43 min
May 26, 10:15 AM EDT	Severe Thunderstorm Watch	SPC	9 hr
May 26, 3:32 PM EDT	Mesoscale Discussion	SPC	58 min
May 26, 4:36 PM EDT	Mesoscale Discussion	SPC	84 min
May 26, 5:10 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
May 26, 6:55 PM EDT	Severe Thunderstorm Warning	GSP	65 min
May 26, 7:50 PM EDT	Severe Thunderstorm Warning	GSP	70 min
May 26, 8:05 PM EDT	Severe Thunderstorm Warning	GSP	55 min
Jun 1, 4:35 PM EDT	Mesoscale Discussion	SPC	85 min
Jun 2, 2:44 PM EDT	Severe Thunderstorm Warning	GSP	61 min
Jun 2, 2:50 PM EDT	Mesoscale Discussion	SPC	115 min
Jun 2, 3:15 PM EDT	Severe Thunderstorm Warning	GSP	60 min
Jun 2, 3:53 PM EDT	Severe Thunderstorm Warning	GSP	67 min
Jun 2, 4:13 PM EDT	Severe Thunderstorm Warning	GSP	62 min
Jun 2, 4:16 PM EDT	Severe Thunderstorm Warning	GSP	59 min
Jun 2, 4:34 PM EDT	Severe Thunderstorm Warning	GSP	56 min
Jun 3, 5:54 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 6, 3:37 PM EDT	Special Weather Statement	GSP	23 min
Jun 6, 4:03 PM EDT	Special Weather Statement	GSP	42 min
Jun 7, 6:04 PM EDT	Mesoscale Discussion	SPC	116 min
Jun 8, 3:49 PM EDT	Severe Thunderstorm Warning	GSP	56 min
Jun 9, 1:10 PM EDT	Mesoscale Discussion	SPC	95 min
Jun 9, 1:51 PM EDT	Severe Thunderstorm Warning	GSP	69 min
Jun 10, 5:03 PM EDT	Severe Thunderstorm Warning	GSP	45 min
Jun 11, 1:48 PM EDT	Mesoscale Discussion	SPC	87 min
Jun 11, 3:38 PM EDT	Severe Thunderstorm Warning	GSP	67 min
Jun 11, 3:44 PM EDT	Severe Thunderstorm Warning	GSP	61 min
Jun 12, 2:09 PM EDT	Severe Thunderstorm Warning	GSP	39 min
Jun 12, 3:21 PM EDT	Severe Thunderstorm Warning	GSP	54 min
Jun 12, 3:49 PM EDT	Severe Thunderstorm Warning	GSP	56 min
Jun 15, 12:52 PM EDT	Severe Thunderstorm Watch	SPC	9 hr
Jun 15, 5:46 PM EDT	Severe Thunderstorm Warning	GSP	29 min
Jun 15, 6:18 PM EDT	Severe Thunderstorm Warning	GSP	27 min
Jun 15, 6:53 PM EDT	Mesoscale Discussion	SPC	97 min
Jun 18, 9:38 AM EDT	Mesoscale Discussion	SPC	97 min
Jun 18, 11:05 AM EDT	Severe Thunderstorm Watch	SPC	9 hr
Jun 18, 1:56 PM EDT	Severe Thunderstorm Warning	GSP	64 min
Jun 18, 2:21 PM EDT	Mesoscale Discussion	SPC	84 min
Jun 18, 3:11 PM EDT	Severe Thunderstorm Warning	GSP	25 min
Jun 19, 9:59 AM EDT	Special Weather Statement	GSP	46 min
Jun 19, 10:45 AM EDT	Special Weather Statement	GSP	30 min
Jun 19, 1:29 PM EDT	Mesoscale Discussion	SPC	61 min
Jun 19, 1:45 PM EDT	Special Weather Statement	GSP	30 min
Jun 19, 2:18 PM EDT	Special Weather Statement	GSP	27 min
Jun 19, 2:22 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 19, 4:13 PM EDT	Mesoscale Discussion	SPC	62 min
Jun 19, 9:41 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 20, 5:05 AM EDT	Severe Thunderstorm Warning	GSP	55 min
Jun 21, 2:01 PM EDT	Severe Thunderstorm Warning	GSP	59 min
Jun 21, 2:11 PM EDT	Mesoscale Discussion	SPC	64 min
Jun 21, 3:09 PM EDT	Severe Thunderstorm Warning	GSP	66 min
Jun 22, 2:11 PM EDT	Special Weather Statement	GSP	34 min
Jun 22, 5:38 PM EDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 22, 7:20 PM EDT	Severe Thunderstorm Warning	GSP	55 min
Jun 23, 8:28 AM EDT	Special Weather Statement	GSP	47 min
Jun 24, 1:05 PM EDT	Mesoscale Discussion	SPC	2 hr
Jun 26, 11:34 AM EDT	Mesoscale Discussion	SPC	56 min
Jun 26, 6:29 PM EDT	Mesoscale Discussion	SPC	46 min
Jun 27, 2:07 PM EDT	Special Weather Statement	GSP	38 min
Jun 27, 2:31 PM EDT	Special Weather Statement	GSP	44 min
Jun 27, 2:59 PM EDT	Severe Thunderstorm Warning	GSP	66 min
Jun 27, 4:07 PM EDT	Mesoscale Discussion	SPC	83 min
Jun 28, 2:44 PM EDT	Mesoscale Discussion	SPC	91 min
Jun 28, 3:37 PM EDT	Special Weather Statement	GSP	38 min
Jul 4, 12:50 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 4, 1:40 PM EDT	Severe Thunderstorm Warning	GSP	65 min
Jul 4, 3:17 PM EDT	Special Weather Statement	GSP	28 min
Jul 5, 2:42 PM EDT	Special Weather Statement	GSP	48 min
Jul 6, 7:50 PM EDT	Special Weather Statement	GSP	25 min
Jul 6, 8:27 PM EDT	Special Weather Statement	GSP	33 min
Jul 8, 6:16 PM EDT	Special Weather Statement	GSP	29 min
Jul 8, 6:44 PM EDT	Special Weather Statement	GSP	31 min
Jul 13, 7:02 PM EDT	Special Weather Statement	GSP	43 min
Jul 24, 1:21 PM EDT	Special Weather Statement	GSP	24 min
Aug 8, 4:00 PM EDT	Special Weather Statement	GSP	45 min
Aug 8, 4:44 PM EDT	Special Weather Statement	GSP	46 min
Aug 11, 2:25 PM EDT	Mesoscale Discussion	SPC	65 min
Aug 12, 1:46 PM EDT	Mesoscale Discussion	SPC	2 hr
Aug 12, 6:32 PM EDT	Special Weather Statement	GSP	43 min
Aug 13, 2:04 PM EDT	Severe Thunderstorm Warning	GSP	56 min
Aug 13, 2:35 PM EDT	Severe Thunderstorm Warning	GSP	55 min
Aug 13, 3:23 PM EDT	Severe Thunderstorm Warning	GSP	67 min
Aug 13, 3:35 PM EDT	Special Weather Statement	GSP	40 min
Aug 13, 4:20 PM EDT	Mesoscale Discussion	SPC	115 min
Aug 14, 1:50 PM EDT	Mesoscale Discussion	SPC	55 min
Aug 14, 2:06 PM EDT	Severe Thunderstorm Warning	GSP	54 min
Aug 14, 2:07 PM EDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 18, 2:59 PM EDT	Mesoscale Discussion	SPC	2 hr
Aug 21, 2:35 PM EDT	Severe Thunderstorm Warning	GSP	26 min
Aug 22, 4:20 AM EDT	Special Weather Statement	GSP	40 min
Aug 22, 5:36 AM EDT	Special Weather Statement	GSP	54 min
Sep 2, 2:07 PM EDT	Special Weather Statement	GSP	53 min
Sep 2, 2:22 PM EDT	Severe Thunderstorm Warning	GSP	31 min
Sep 2, 2:31 PM EDT	Mesoscale Discussion	SPC	59 min
Sep 4, 12:33 PM EDT	Flash Flood Watch	GSP	51 hr
Sep 5, 11:19 AM EDT	River Flood Warning	GSP	21 hr
Sep 5, 3:42 PM EDT	Tornado Watch	SPC	7 hr
Sep 5, 7:37 PM EDT	Mesoscale Discussion	SPC	113 min
Sep 6, 8:57 AM EDT	Special Weather Statement	GSP	48 min
Sep 6, 9:50 AM EDT	Special Weather Statement	GSP	25 min
Sep 23, 4:33 AM EDT	Flash Flood Warning	GSP	4 hr
Sep 30, 3:22 PM EDT	Lake Wind Advisory	GSP	36 hr
Oct 3, 3:45 AM EDT	Frost Advisory	GSP	29 hr
Oct 13, 2:47 PM EDT	Lake Wind Advisory	GSP	28 hr
Oct 19, 3:40 AM EDT	Lake Wind Advisory	GSP	39 hr
Oct 20, 2:49 PM EDT	Freeze Watch	GSP	24 hr
Oct 21, 2:30 PM EDT	Freeze Warning	GSP	20 hr
Oct 29, 11:06 AM EDT	Lake Wind Advisory	GSP	8 hr
Nov 4, 4:21 AM EDT	Lake Wind Advisory	GSP	15 hr
Nov 17, 3:53 AM EST	Lake Wind Advisory	GSP	17 hr
Nov 23, 3:33 AM EST	High Wind Warning	GSP	11 hr
Nov 23, 2:52 PM EST	Wind Advisory	GSP	7 hr
Nov 27, 2:50 PM EST	Flood Watch	GSP	20 hr
Nov 27, 7:46 PM EST	River Flood Warning	GSP	4 days
Nov 27, 10:23 PM EST	Lake Wind Advisory	GSP	24 hr
Nov 28, 10:45 AM EST	Flash Flood Warning	GSP	6 hr
Nov 28, 10:55 AM EST	Flood Watch	GSP	16 hr
Nov 28, 4:30 PM EST	Flash Flood Warning	GSP	6 hr
Nov 28, 10:43 PM EST	Areal Flood Warning	GSP	6 hr
Dec 6, 9:47 PM EST	Winter Weather Advisory	GSP	28 hr
Dec 7, 7:49 PM EST	Wind Advisory	GSP	6 hr
Dec 21, 9:24 PM EST	Dense Fog Advisory	GSP	13 hr
Dec 22, 9:57 PM EST	Flash Flood Warning	GSP	6 hr
Dec 22, 10:07 PM EST	River Flood Advisory	GSP	12 hr
Dec 23, 11:21 AM EST	River Flood Advisory	GSP	12 hr
Dec 27, 3:29 AM EST	Wind Advisory	GSP	27 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	47
Tornado Warning	4
Severe Thunderstorm Watch	16
Tornado Watch	10
Mesoscale Discussion	48
Special Weather Statement	33
Flooding
Areal Flood Warning	5
Flash Flood Warning	7
River Flood Warning	5
Flash Flood Watch	2
Flood Watch	3
Areal Flood Advisory	5
River Flood Advisory	3
Winter
Winter Storm Warning	1
Winter Storm Watch	1
Freezing Rain Advisory	1
Winter Weather Advisory	8
Cold
Freeze Warning	5
Freeze Watch	2
Frost Advisory	5
Wind Chill Advisory	1
Wind and dust
High Wind Warning	2
Lake Wind Advisory	22
Wind Advisory	11
Fire
Red Flag Warning	3
Fire Weather Watch	2
Fog and smoke
Dense Fog Advisory	3

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. Warning verification from the Mesonet's Cow. Rebuilt daily.