Alert archive / Wisconsin / Grant County

Weather alerts in Grant County, Wisconsin, 2008

173 weather alerts in 2008, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Grant County and its neighbors

Each county as a circle sized by its count in 2008. Tap one for its archive.

Alerts: 173
Warnings: 56
Watches: 37
Advisories: 32
Busiest month: June50 alerts
Busiest day: April 25, 200810 alerts

Over time

By month

Warning verification

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

2 of 3 tornado warnings covering Grant County in 2008 had a tornado report inside them; 3 of 3 tornado reports fell inside a warning, on average 11 minutes after it went out.

Grant County, 2008

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	3	2	33%	3	100%	11 min
Severe thunderstorm warnings	18	9	50%	21	67%	17 min
Flash flood warnings	10	5	50%	15	60%	91 min

Each office's whole area, 2008

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS La Crosse, WI: tornado warnings	26	5	81%	15	60%	7 min
NWS La Crosse, WI: severe thunderstorm warnings	168	71	58%	198	70%	25 min
NWS La Crosse, WI: flash flood warnings	34	13	62%	53	57%	133 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 5, 3:30 PM CST	Dense Fog Advisory	ARX	45 hr
Jan 7, 6:35 AM CST	Severe Thunderstorm Warning	ARX	25 min
Jan 7, 7:26 AM CST	Mesoscale Discussion	SPC	2 hr
Jan 7, 2:22 PM CST	Dense Fog Advisory	ARX	19 hr
Jan 8, 11:40 AM CST	Mesoscale Discussion	SPC	5 hr
Jan 15, 2:34 PM CST	Winter Storm Watch	ARX	25 hr
Jan 16, 3:50 PM CST	Snow Advisory	ARX	26 hr
Jan 18, 4:15 AM CST	Wind Chill Advisory	ARX	38 hr
Jan 20, 3:35 PM CST	Snow Advisory	ARX	32 hr
Jan 21, 3:25 PM CST	Heavy Snow Warning	ARX	12 hr
Jan 28, 1:17 PM CST	Winter Storm Watch	ARX	14 hr
Jan 29, 3:26 AM CST	Wind Chill Advisory	ARX	23 hr
Jan 29, 3:26 AM CST	Winter Storm Warning	ARX	17 hr
Jan 29, 12:19 PM CST	Mesoscale Discussion	SPC	4 hr
Jan 29, 3:28 PM CST	Wind Chill Warning	ARX	21 hr
Jan 29, 8:08 PM CST	Blowing Snow Advisory	ARX	4 hr
Feb 3, 3:18 PM CST	Winter Weather Advisory	ARX	27 hr
Feb 4, 4:26 AM CST	Winter Storm Watch	ARX	24 hr
Feb 4, 6:14 AM CST	Mesoscale Discussion	SPC	5 hr
Feb 5, 4:08 AM CST	Winter Storm Warning	ARX	36 hr
Feb 6, 6:07 AM CST	Mesoscale Discussion	SPC	6 hr
Feb 8, 3:26 PM CST	Wind Chill Watch	ARX	11 hr
Feb 8, 3:26 PM CST	Winter Weather Advisory	ARX	33 hr
Feb 9, 2:32 AM CST	Wind Chill Warning	ARX	33 hr
Feb 10, 11:44 AM CST	Wind Chill Advisory	ARX	6 hr
Feb 11, 2:52 AM CST	Snow Advisory	ARX	33 hr
Feb 15, 11:43 AM CST	Winter Storm Watch	ARX	28 hr
Feb 16, 3:39 PM CST	Winter Storm Warning	ARX	25 hr
Feb 16, 11:34 PM CST	Mesoscale Discussion	SPC	5 hr
Feb 17, 5:02 AM CST	Blizzard Warning	ARX	11 hr
Feb 17, 7:01 AM CST	Mesoscale Discussion	SPC	5 hr
Feb 17, 12:13 PM CST	Mesoscale Discussion	SPC	4 hr
Feb 17, 4:11 PM CST	Winter Storm Warning	ARX	3 hr
Feb 19, 3:49 AM CST	Wind Chill Advisory	ARX	32 hr
Feb 24, 3:55 AM CST	Winter Storm Watch	ARX	24 hr
Feb 25, 3:43 AM CST	Winter Storm Warning	ARX	11 hr
Feb 25, 2:34 PM CST	Snow Advisory	ARX	7 hr
Feb 29, 12:41 AM CST	Winter Weather Advisory	ARX	5 hr
Mar 2, 3:31 PM CST	Winter Weather Advisory	ARX	12 hr
Mar 2, 5:26 PM CST	Mesoscale Discussion	SPC	2 hr
Mar 18, 7:09 AM CDT	Dense Fog Advisory	ARX	6 hr
Mar 19, 3:23 PM CDT	Winter Storm Watch	ARX	24 hr
Mar 20, 3:34 PM CDT	Winter Storm Warning	ARX	30 hr
Mar 21, 4:37 AM CDT	Mesoscale Discussion	SPC	4 hr
Mar 25, 3:27 PM CDT	Winter Storm Watch	ARX	24 hr
Mar 30, 3:53 AM CDT	Flood Watch	ARX	41 hr
Apr 16, 5:35 AM CDT	Wind Advisory	ARX	9 hr
Apr 24, 12:57 PM CDT	River Flood Statement	ARX	14 hr
Apr 24, 9:00 PM CDT	Flood Watch	ARX	21 hr
Apr 24, 11:53 PM CDT	Flash Flood Warning	ARX	3 hr
Apr 25, 2:55 AM CDT	Areal Flood Warning	ARX	6 hr
Apr 25, 6:53 AM CDT	River Flood Warning	ARX	5 days
Apr 25, 9:00 AM CDT	Areal Flood Warning	ARX	6 hr
Apr 25, 9:55 AM CDT	River Flood Warning	ARX	4 days
Apr 25, 2:10 PM CDT	Mesoscale Discussion	SPC	65 min
Apr 25, 2:34 PM CDT	Severe Thunderstorm Warning	ARX	56 min
Apr 25, 2:41 PM CDT	Tornado Watch	SPC	5 hr
Apr 25, 2:51 PM CDT	Areal Flood Warning	ARX	6 hr
May 2, 11:05 AM CDT	Mesoscale Discussion	SPC	115 min
May 2, 4:31 PM CDT	Tornado Watch	SPC	3 hr
May 2, 5:04 PM CDT	Severe Thunderstorm Warning	ARX	41 min
May 25, 2:04 PM CDT	Tornado Watch PDS	SPC	6 hr
May 25, 7:12 PM CDT	Tornado Watch	SPC	4 hr
May 25, 7:22 PM CDT	Severe Thunderstorm Warning	ARX	68 min
May 25, 9:23 PM CDT	Mesoscale Discussion	SPC	67 min
May 30, 4:58 PM CDT	Severe Thunderstorm Watch	SPC	3 hr
May 31, 6:55 PM CDT	Severe Thunderstorm Warning	ARX	65 min
May 31, 7:35 PM CDT	Tornado Warning	ARX	25 min
Jun 5, 1:38 AM CDT	Mesoscale Discussion	SPC	3 hr
Jun 5, 4:11 AM CDT	Mesoscale Discussion	SPC	94 min
Jun 5, 5:04 AM CDT	Flash Flood Warning	ARX	5 hr
Jun 5, 9:14 PM CDT	Tornado Watch	SPC	8 hr
Jun 6, 3:29 AM CDT	Mesoscale Discussion	SPC	61 min
Jun 7, 4:02 AM CDT	Flash Flood Watch	ARX	44 hr
Jun 7, 10:35 AM CDT	Mesoscale Discussion	SPC	85 min
Jun 7, 12:17 PM CDT	Tornado Watch	SPC	8 hr
Jun 7, 1:35 PM CDT	Mesoscale Discussion	SPC	85 min
Jun 7, 1:43 PM CDT	Tornado Warning	ARX	47 min
Jun 7, 2:32 PM CDT	Severe Thunderstorm Warning	ARX	33 min
Jun 7, 6:34 PM CDT	Mesoscale Discussion	SPC	56 min
Jun 7, 7:40 PM CDT	Tornado Watch	SPC	7 hr
Jun 8, 2:29 AM CDT	Mesoscale Discussion	SPC	31 min
Jun 8, 3:24 AM CDT	Flash Flood Warning	ARX	5 hr
Jun 8, 2:27 PM CDT	Areal Flood Warning	ARX	34 hr
Jun 8, 4:43 PM CDT	Tornado Watch	SPC	6 hr
Jun 8, 6:17 PM CDT	Severe Thunderstorm Warning	ARX	28 min
Jun 8, 7:24 PM CDT	Severe Thunderstorm Warning	ARX	21 min
Jun 8, 9:29 PM CDT	River Flood Warning	ARX	39 hr
Jun 10, 12:25 AM CDT	Areal Flood Warning	ARX	10 hr
Jun 10, 2:45 PM CDT	Flash Flood Watch	ARX	58 hr
Jun 10, 9:47 PM CDT	Mesoscale Discussion	SPC	88 min
Jun 11, 12:15 PM CDT	River Flood Warning	ARX	5 days
Jun 11, 12:15 PM CDT	River Flood Warning	ARX	8 days
Jun 12, 12:37 PM CDT	Mesoscale Discussion	SPC	113 min
Jun 12, 1:04 PM CDT	Tornado Watch	SPC	7 hr
Jun 12, 1:22 PM CDT	Severe Thunderstorm Warning	ARX	38 min
Jun 12, 1:36 PM CDT	Flash Flood Warning	ARX	3 hr
Jun 12, 2:14 PM CDT	Severe Thunderstorm Warning	ARX	46 min
Jun 12, 2:26 PM CDT	Tornado Warning	ARX	15 min
Jun 12, 3:52 PM CDT	Mesoscale Discussion	SPC	113 min
Jun 12, 4:19 PM CDT	Flash Flood Warning	ARX	5 hr
Jun 12, 7:39 PM CDT	Flash Flood Warning	ARX	3 hr
Jun 12, 9:26 PM CDT	Flash Flood Warning	ARX	3 hr
Jun 13, 12:29 AM CDT	Areal Flood Warning	ARX	36 hr
Jun 13, 9:20 AM CDT	River Flood Warning	ARX	17 hr
Jun 14, 12:35 PM CDT	Mesoscale Discussion	SPC	115 min
Jun 14, 3:14 PM CDT	Severe Thunderstorm Watch	SPC	4 hr
Jun 14, 3:48 PM CDT	Flash Flood Warning	ARX	2 hr
Jun 14, 3:49 PM CDT	Severe Thunderstorm Warning	ARX	56 min
Jun 14, 4:27 PM CDT	Severe Thunderstorm Warning	ARX	48 min
Jun 14, 4:40 PM CDT	Severe Thunderstorm Warning	ARX	35 min
Jun 14, 5:17 PM CDT	Mesoscale Discussion	SPC	88 min
Jun 15, 2:01 AM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 15, 1:08 PM CDT	Mesoscale Discussion	SPC	97 min
Jun 20, 1:54 PM CDT	Mesoscale Discussion	SPC	96 min
Jun 27, 5:46 PM CDT	Severe Thunderstorm Watch	SPC	4 hr
Jun 28, 12:48 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jul 2, 9:42 AM CDT	Mesoscale Discussion	SPC	2 hr
Jul 2, 1:55 PM CDT	Mesoscale Discussion	SPC	95 min
Jul 7, 1:05 PM CDT	Mesoscale Discussion	SPC	115 min
Jul 7, 1:51 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 7, 3:14 PM CDT	Mesoscale Discussion	SPC	91 min
Jul 7, 3:41 PM CDT	Flash Flood Watch	ARX	8 hr
Jul 7, 7:02 PM CDT	Severe Thunderstorm Warning	ARX	58 min
Jul 7, 7:19 PM CDT	Areal Flood Advisory	ARX	3 hr
Jul 10, 9:36 AM CDT	Mesoscale Discussion	SPC	84 min
Jul 10, 12:06 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 10, 12:55 PM CDT	Mesoscale Discussion	SPC	95 min
Jul 10, 3:38 PM CDT	Mesoscale Discussion	SPC	97 min
Jul 10, 6:40 PM CDT	Severe Thunderstorm Warning	ARX	50 min
Jul 10, 6:44 PM CDT	Flash Flood Warning	ARX	3 hr
Jul 12, 1:52 AM CDT	Mesoscale Discussion	SPC	53 min
Jul 12, 3:15 AM CDT	Flash Flood Warning	ARX	3 hr
Jul 16, 3:39 PM CDT	Mesoscale Discussion	SPC	96 min
Jul 17, 10:57 AM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 17, 11:30 AM CDT	Flash Flood Watch	ARX	9 hr
Jul 17, 2:19 PM CDT	Mesoscale Discussion	SPC	86 min
Jul 19, 6:56 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 25, 4:45 PM CDT	Severe Thunderstorm Watch	SPC	4 hr
Jul 25, 8:32 PM CDT	Mesoscale Discussion	SPC	88 min
Jul 31, 6:50 AM CDT	Mesoscale Discussion	SPC	85 min
Jul 31, 7:18 AM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 31, 8:03 AM CDT	Mesoscale Discussion	SPC	87 min
Jul 31, 10:28 AM CDT	Mesoscale Discussion	SPC	92 min
Jul 31, 11:15 AM CDT	Severe Thunderstorm Warning	ARX	30 min
Jul 31, 11:46 AM CDT	Severe Thunderstorm Warning	ARX	14 min
Aug 4, 3:51 PM CDT	Mesoscale Discussion	SPC	84 min
Aug 4, 5:11 PM CDT	Severe Thunderstorm Warning	ARX	28 min
Sep 12, 2:02 PM CDT	Flood Watch	ARX	19 hr
Oct 3, 3:48 AM CDT	Frost Advisory	ARX	29 hr
Oct 18, 2:30 AM CDT	Dense Fog Advisory	ARX	8 hr
Oct 25, 2:08 PM CDT	Wind Advisory	ARX	30 hr
Nov 12, 7:29 PM CST	Dense Fog Advisory	ARX	4 hr
Nov 30, 3:40 AM CST	Winter Weather Advisory	ARX	20 hr
Dec 2, 3:15 PM CST	Winter Weather Advisory	ARX	22 hr
Dec 7, 4:13 AM CST	Winter Storm Watch	ARX	25 hr
Dec 8, 4:55 AM CST	Winter Storm Warning	ARX	33 hr
Dec 8, 7:12 PM CST	Mesoscale Discussion	SPC	2 hr
Dec 8, 11:43 PM CST	Mesoscale Discussion	SPC	2 hr
Dec 14, 3:12 AM CST	Wind Chill Advisory	ARX	48 hr
Dec 15, 3:07 PM CST	Winter Weather Advisory	ARX	32 hr
Dec 17, 3:34 AM CST	Winter Storm Watch	ARX	25 hr
Dec 17, 3:48 PM CST	Winter Storm Warning	ARX	44 hr
Dec 18, 11:38 PM CST	Mesoscale Discussion	SPC	4 hr
Dec 19, 12:09 PM CST	Winter Storm Watch	ARX	15 hr
Dec 20, 3:19 AM CST	Winter Storm Warning	ARX	39 hr
Dec 21, 3:46 PM CST	Wind Chill Advisory	ARX	19 hr
Dec 22, 3:45 AM CST	Winter Weather Advisory	ARX	32 hr
Dec 23, 3:04 PM CST	Winter Weather Advisory	ARX	24 hr
Dec 25, 3:55 AM CST	Winter Weather Advisory	ARX	35 hr
Dec 26, 11:20 AM CST	Dense Fog Advisory	ARX	15 hr
Dec 27, 3:51 AM CST	Winter Weather Advisory	ARX	23 hr
Dec 27, 9:41 AM CST	Mesoscale Discussion	SPC	3 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	3
Severe Thunderstorm Watch	10
Tornado Watch	9
Mesoscale Discussion	47
Flooding
Areal Flood Warning	6
Flash Flood Warning	10
River Flood Warning	6
Flash Flood Watch	4
Flood Watch	3
Areal Flood Advisory	1
River Flood Statement	1
Winter
Blizzard Warning	1
Heavy Snow Warning	1
Winter Storm Warning	9
Winter Storm Watch	10
Blowing Snow Advisory	1
Snow Advisory	4
Winter Weather Advisory	11
Cold
Wind Chill Warning	2
Wind Chill Watch	1
Frost Advisory	1
Wind Chill Advisory	6
Wind and dust
Wind Advisory	2
Fog and smoke
Dense Fog Advisory	6

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2007 2009

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.