Alert archive / Wisconsin / Clark County

Weather alerts in Clark County, Wisconsin, 2022

87 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Clark County and its neighbors

Each county as a circle sized by its count in 2022. Tap one for its archive.

Alerts
87
Warnings
14
Watches
11
Advisories
31
Busiest month
May18 alerts
Busiest day
May 10, 20226 alerts

Over time

By month

Warning verification

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

Clark County, 2022

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings5260%1100%27 min
Flash flood warnings220%3100%49 min

Each office's whole area, 2022

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS La Crosse, WI: tornado warnings21767%1953%11 min
NWS La Crosse, WI: severe thunderstorm warnings1296649%21870%22 min
NWS La Crosse, WI: flash flood warnings9544%1060%65 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.

IssuedProductOfficeLasted
Jan 4, 3:18 AM CSTWinter Weather AdvisoryARX39 hr
Jan 6, 2:39 AM CSTWind Chill AdvisoryARX30 hr
Jan 9, 2:52 PM CSTWind Chill AdvisoryARX21 hr
Jan 19, 2:29 AM CSTWind Chill AdvisoryARX34 hr
Jan 20, 11:55 AM CSTWind Chill AdvisoryARX24 hr
Jan 24, 3:14 AM CSTWind Chill AdvisoryARX57 hr
Feb 2, 3:59 AM CSTWind Chill AdvisoryARX29 hr
Feb 18, 2:54 AM CSTWind AdvisoryARX24 hr
Feb 18, 2:55 AM CSTWinter Weather AdvisoryARX24 hr
Feb 18, 3:34 PM CSTSnow Squall WarningARX26 min
Feb 19, 2:48 AM CSTWind Chill AdvisoryARX6 hr
Feb 20, 3:12 PM CSTWinter Weather AdvisoryARX51 hr
Feb 22, 11:12 AM CSTMesoscale DiscussionSPC4 hr
Mar 4, 3:45 AM CSTWinter Weather AdvisoryARX29 hr
Mar 4, 4:01 PM CSTIce Storm WarningARX20 hr
Mar 5, 2:09 AM CSTMesoscale DiscussionSPC6 hr
Mar 5, 8:04 PM CSTSpecial Weather StatementARX41 min
Mar 5, 9:34 PM CSTAreal Flood AdvisoryARX3 hr
Mar 11, 2:37 PM CSTWind Chill AdvisoryARX18 hr
Mar 14, 11:17 PM CDTDense Fog AdvisoryARX12 hr
Mar 29, 3:47 AM CDTWinter Weather AdvisoryARX30 hr
Mar 29, 9:28 PM CDTMesoscale DiscussionSPC4 hr
Apr 13, 2:30 PM CDTWind AdvisoryARX29 hr
May 9, 7:48 PM CDTMesoscale DiscussionSPC87 min
May 9, 8:17 PM CDTSevere Thunderstorm WatchSPC5 hr
May 9, 8:18 PM CDTSevere Thunderstorm WarningARX57 min
May 9, 9:15 PM CDTSevere Thunderstorm WarningARX45 min
May 10, 2:19 PM CDTTornado WatchSPC7 hr
May 10, 6:45 PM CDTMesoscale DiscussionSPC90 min
May 11, 5:27 PM CDTTornado WatchSPC7 hr
May 11, 9:44 PM CDTMesoscale DiscussionSPC91 min
May 11, 11:22 PM CDTSpecial Weather StatementARX83 min
May 18, 5:50 PM CDTMesoscale DiscussionSPC55 min
May 18, 8:42 PM CDTSevere Thunderstorm WarningARX33 min
May 18, 9:03 PM CDTSpecial Weather StatementARX72 min
May 18, 9:13 PM CDTMesoscale DiscussionSPC62 min
May 19, 3:20 PM CDTSevere Thunderstorm WatchSPC7 hr
May 19, 4:54 PM CDTMesoscale DiscussionSPC2 hr
May 19, 7:38 PM CDTMesoscale DiscussionSPC2 hr
May 22, 2:52 PM CDTFrost AdvisoryARX17 hr
May 29, 10:02 AM CDTMesoscale DiscussionSPC88 min
Jun 13, 3:36 AM CDTHeat AdvisoryARX40 hr
Jun 15, 2:43 AM CDTSevere Thunderstorm WarningARX32 min
Jun 15, 2:28 PM CDTTornado WatchSPC10 hr
Jun 19, 2:53 PM CDTHeat AdvisoryARX30 hr
Jun 28, 12:49 PM CDTMesoscale DiscussionSPC86 min
Jun 28, 1:41 PM CDTSevere Thunderstorm WatchSPC7 hr
Jun 28, 5:09 PM CDTMesoscale DiscussionSPC96 min
Jul 11, 1:05 PM CDTMesoscale DiscussionSPC115 min
Jul 11, 2:43 PM CDTSpecial Weather StatementARX62 min
Jul 11, 3:35 PM CDTSpecial Weather StatementARX55 min
Jul 11, 4:37 PM CDTSpecial Weather StatementARX53 min
Jul 15, 1:27 AM CDTMesoscale DiscussionSPC2 hr
Jul 15, 4:10 AM CDTFlash Flood WarningARX5 hr
Jul 15, 5:07 AM CDTFlash Flood WarningARX4 hr
Jul 15, 9:07 AM CDTAreal Flood WarningARX3 hr
Jul 16, 3:40 AM CDTDense Fog AdvisoryARX5 hr
Jul 23, 11:34 AM CDTSevere Thunderstorm WatchSPC6 hr
Aug 2, 6:12 PM CDTMesoscale DiscussionSPC2 hr
Aug 2, 8:03 PM CDTSevere Thunderstorm WatchSPC7 hr
Aug 2, 10:01 PM CDTMesoscale DiscussionSPC89 min
Aug 3, 2:03 AM CDTSevere Thunderstorm WarningARX57 min
Aug 15, 4:22 AM CDTDense Fog AdvisoryARX6 hr
Sep 2, 4:58 PM CDTMesoscale DiscussionSPC2 hr
Sep 10, 10:53 PM CDTDense Fog AdvisoryARX8 hr
Sep 18, 9:23 PM CDTDense Fog AdvisoryARX12 hr
Sep 20, 12:19 AM CDTMesoscale DiscussionSPC86 min
Sep 20, 5:04 AM CDTAreal Flood AdvisoryARX116 min
Sep 20, 8:31 PM CDTSevere Thunderstorm WatchSPC4 hr
Sep 20, 9:48 PM CDTMesoscale DiscussionSPC87 min
Sep 20, 10:51 PM CDTSpecial Weather StatementARX54 min
Sep 22, 2:37 PM CDTFrost AdvisoryARX17 hr
Sep 25, 2:20 PM CDTMesoscale DiscussionSPC2 hr
Sep 25, 2:30 PM CDTSpecial Weather StatementARX45 min
Sep 26, 2:22 PM CDTFrost AdvisoryARX19 hr
Sep 27, 1:51 PM CDTFreeze WarningARX18 hr
Nov 10, 11:47 AM CSTMesoscale DiscussionSPC88 min
Dec 12, 3:18 AM CSTWinter Storm WatchARX35 hr
Dec 13, 2:49 AM CSTWinter Weather AdvisoryARX39 hr
Dec 14, 3:18 AM CSTWinter Storm WarningARX30 hr
Dec 14, 9:30 PM CSTMesoscale DiscussionSPC6 hr
Dec 19, 2:34 PM CSTWinter Storm WatchARX24 hr
Dec 20, 2:48 PM CSTWinter Storm WarningARX4 days
Dec 21, 11:13 AM CSTBlizzard WarningARX67 hr
Dec 23, 1:19 PM CSTWinter Weather AdvisoryARX23 hr
Dec 24, 3:27 AM CSTWind Chill AdvisoryARX31 hr
Dec 29, 6:47 PM CSTDense Fog AdvisoryARX8 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20212023

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.