Alert archive / Wisconsin / Vernon County

Weather alerts in Vernon County, Wisconsin, 2015

87 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Vernon County and its neighbors

Each county as a circle sized by its count in 2015. Tap one for its archive.

Alerts
87
Warnings
11
Watches
13
Advisories
29
Busiest month
July16 alerts
Busiest day
July 13, 201510 alerts

Over time

By month

Warning verification

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

Vernon County, 2015

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings3233%520%9 min
Flash flood warnings00

Each office's whole area, 2015

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS La Crosse, WI: tornado warnings40100%40%
NWS La Crosse, WI: severe thunderstorm warnings473330%12483%23 min
NWS La Crosse, WI: flash flood warnings9544%2075%74 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 3, 3:10 PM CSTWinter Storm WatchARX37 hr
Jan 4, 3:56 AM CSTWind Chill AdvisoryARX32 hr
Jan 5, 4:00 AM CSTWinter Weather AdvisoryARX19 hr
Jan 6, 3:47 AM CSTWind Chill WarningARX32 hr
Jan 7, 11:46 AM CSTWind Chill AdvisoryARX21 hr
Jan 8, 4:49 AM CSTWinter Weather AdvisoryARX28 hr
Jan 8, 8:00 PM CSTWind Chill AdvisoryARX37 hr
Jan 25, 8:23 PM CSTWinter Weather AdvisoryARX24 hr
Jan 28, 2:59 PM CSTFreezing Rain AdvisoryARX15 hr
Jan 31, 3:45 AM CSTWinter Weather AdvisoryARX41 hr
Feb 3, 3:21 AM CSTWinter Weather AdvisoryARX16 hr
Feb 8, 3:48 AM CSTFreezing Rain AdvisoryARX6 hr
Feb 10, 3:53 AM CSTWinter Weather AdvisoryARX20 hr
Feb 13, 3:07 PM CSTWind Chill AdvisoryARX39 hr
Feb 17, 3:00 AM CSTWind Chill AdvisoryARX33 hr
Feb 18, 11:45 AM CSTWind Chill AdvisoryARX24 hr
Feb 20, 3:06 PM CSTWind Chill AdvisoryARX67 hr
Mar 2, 4:14 AM CSTWinter Weather AdvisoryARX34 hr
Mar 21, 3:33 PM CDTWinter Weather AdvisoryARX39 hr
Mar 22, 2:50 PM CDTWinter Storm WarningARX16 hr
Mar 23, 12:47 AM CDTMesoscale DiscussionSPC4 hr
Mar 24, 4:08 AM CDTWinter Weather AdvisoryARX26 hr
Mar 29, 6:45 AM CDTFreezing Rain AdvisoryARX2 hr
Apr 7, 5:29 PM CDTSpecial Weather StatementARX46 min
Apr 14, 3:27 PM CDTFire Weather WatchARX13 hr
Apr 15, 4:16 AM CDTRed Flag WarningARX16 hr
May 3, 8:40 PM CDTSpecial Weather StatementARX80 min
May 3, 9:41 PM CDTSpecial Weather StatementARX109 min
May 12, 3:29 PM CDTFrost AdvisoryARX16 hr
May 17, 1:25 PM CDTSpecial Weather StatementARX35 min
May 17, 2:20 PM CDTMesoscale DiscussionSPC115 min
May 25, 6:06 PM CDTMesoscale DiscussionSPC114 min
May 29, 4:51 PM CDTSpecial Weather StatementARX54 min
May 29, 5:56 PM CDTSpecial Weather StatementARX2 hr
Jun 7, 3:21 AM CDTSpecial Weather StatementARX114 min
Jun 10, 1:46 PM CDTFlash Flood WatchARX32 hr
Jun 15, 1:28 PM CDTSpecial Weather StatementARX92 min
Jun 20, 7:41 AM CDTSpecial Weather StatementARX94 min
Jun 22, 4:53 AM CDTMesoscale DiscussionSPC2 hr
Jun 22, 6:03 AM CDTSevere Thunderstorm WatchSPC4 hr
Jun 22, 7:42 AM CDTMesoscale DiscussionSPC93 min
Jun 29, 1:57 PM CDTSevere Thunderstorm WatchSPC8 hr
Jun 29, 5:20 PM CDTSevere Thunderstorm WarningARX55 min
Jun 29, 7:25 PM CDTMesoscale DiscussionSPC65 min
Jul 12, 9:03 PM CDTMesoscale DiscussionSPC117 min
Jul 12, 9:59 PM CDTSevere Thunderstorm WatchSPC6 hr
Jul 12, 11:55 PM CDTMesoscale DiscussionSPC95 min
Jul 13, 2:00 AM CDTMesoscale DiscussionSPC2 hr
Jul 13, 2:11 AM CDTSpecial Weather StatementARX94 min
Jul 13, 1:51 PM CDTMesoscale DiscussionSPC84 min
Jul 13, 3:11 PM CDTSevere Thunderstorm WatchSPC6 hr
Jul 13, 4:39 PM CDTSevere Thunderstorm WarningARX66 min
Jul 13, 5:13 PM CDTSevere Thunderstorm WarningARX77 min
Jul 13, 6:09 PM CDTMesoscale DiscussionSPC66 min
Jul 18, 12:23 AM CDTMesoscale DiscussionSPC67 min
Jul 18, 12:41 AM CDTSevere Thunderstorm WatchSPC5 hr
Jul 18, 2:05 AM CDTMesoscale DiscussionSPC85 min
Jul 18, 3:06 AM CDTMesoscale DiscussionSPC84 min
Jul 18, 3:09 AM CDTSpecial Weather StatementARX66 min
Jul 18, 12:31 PM CDTMesoscale DiscussionSPC119 min
Aug 2, 2:00 PM CDTMesoscale DiscussionSPC2 hr
Aug 2, 2:59 PM CDTSevere Thunderstorm WatchSPC7 hr
Aug 13, 2:24 PM CDTMesoscale DiscussionSPC2 hr
Aug 18, 1:35 PM CDTTornado WatchSPC8 hr
Aug 22, 6:12 PM CDTMesoscale DiscussionSPC63 min
Sep 6, 5:12 PM CDTMesoscale DiscussionSPC2 hr
Sep 8, 2:43 AM CDTFlash Flood WatchARX7 hr
Sep 8, 7:17 AM CDTAreal Flood AdvisoryARX118 min
Sep 17, 2:30 PM CDTSpecial Weather StatementARX60 min
Sep 17, 3:39 PM CDTSpecial Weather StatementARX36 min
Oct 16, 3:04 AM CDTFreeze WarningARX30 hr
Nov 10, 3:23 PM CSTWind AdvisoryARX51 hr
Nov 18, 3:00 PM CSTWind AdvisoryARX27 hr
Nov 20, 3:48 AM CSTWinter Weather AdvisoryARX23 hr
Nov 29, 2:42 PM CSTWinter Weather AdvisoryARX37 hr
Dec 12, 5:00 AM CSTDense Fog AdvisoryARX7 hr
Dec 13, 3:08 AM CSTAreal Flood AdvisoryARX4 hr
Dec 13, 4:07 AM CSTFlood WatchARX32 hr
Dec 13, 10:23 AM CSTRiver Flood WarningARX3 days
Dec 13, 10:23 AM CSTRiver Flood WarningARX4 days
Dec 14, 9:30 AM CSTRiver Flood WarningARX25 hr
Dec 21, 4:30 AM CSTDense Fog AdvisoryARX6 hr
Dec 21, 8:59 PM CSTDense Fog AdvisoryARX7 hr
Dec 23, 4:24 PM CSTSpecial Weather StatementARX36 min
Dec 26, 3:25 PM CSTWinter Storm WatchARX24 hr
Dec 27, 3:17 PM CSTWinter Storm WarningARX39 hr
Dec 28, 12:13 PM CSTMesoscale DiscussionSPC5 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 archive20142016

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.