Alert archive / Wisconsin / Pepin County

Weather alerts in Pepin County, Wisconsin, 2011

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

Pepin County and its neighbors

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

Alerts
126
Warnings
18
Watches
26
Advisories
34
Busiest month
July34 alerts
Busiest day
April 10, 20117 alerts

Over time

By month

Warning verification

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

Pepin County, 2011

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings11736%0
Flash flood warnings20100%0

Each office's whole area, 2011

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Twin Cities, MN: tornado warnings441077%2976%10 min
NWS Twin Cities, MN: severe thunderstorm warnings25812850%45075%29 min
NWS Twin Cities, MN: flash flood warnings16663%2348%68 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 19, 3:46 PM CSTWind Chill AdvisoryMPX44 hr
Jan 28, 2:48 AM CSTWinter Weather AdvisoryMPX21 hr
Jan 30, 4:01 AM CSTWinter Weather AdvisoryMPX65 hr
Feb 5, 8:22 AM CSTDense Fog AdvisoryMPX4 hr
Feb 7, 3:35 AM CSTWind Chill AdvisoryMPX56 hr
Feb 8, 11:58 AM CSTWind Chill AdvisoryMPX24 hr
Feb 13, 3:07 AM CSTWind AdvisoryMPX27 hr
Feb 16, 6:36 PM CSTDense Fog AdvisoryMPX17 hr
Feb 18, 3:01 AM CSTWind AdvisoryMPX8 hr
Feb 18, 4:11 AM CSTWinter Storm WatchMPX24 hr
Feb 19, 4:13 AM CSTWinter Storm WarningMPX54 hr
Feb 21, 4:23 AM CSTWinter Weather AdvisoryMPX14 hr
Mar 7, 3:59 AM CSTWinter Storm WatchMPX24 hr
Mar 8, 3:59 AM CSTWinter Weather AdvisoryMPX33 hr
Mar 11, 12:00 AM CSTDense Fog AdvisoryMPX9 hr
Mar 16, 1:56 AM CDTDense Fog AdvisoryMPX7 hr
Mar 20, 3:32 PM CDTDense Fog AdvisoryMPX9 hr
Mar 21, 3:30 PM CDTFlood WatchMPX31 hr
Mar 22, 12:01 PM CDTRiver Flood WarningARX33 days
Mar 22, 12:33 PM CDTWinter Weather AdvisoryMPX30 hr
Mar 22, 12:51 PM CDTRiver Flood WatchMPX51 hr
Apr 9, 11:38 AM CDTRiver Flood WatchMPX6 days
Apr 9, 7:42 PM CDTSevere Thunderstorm WatchSPC7 hr
Apr 10, 1:26 AM CDTMesoscale DiscussionSPC64 min
Apr 10, 1:30 PM CDTMesoscale DiscussionSPC2 hr
Apr 10, 3:19 PM CDTTornado Watch PDSSPC7 hr
Apr 10, 4:07 PM CDTSpecial Weather StatementMPX23 min
Apr 10, 4:09 PM CDTSevere Thunderstorm WarningMPX51 min
Apr 10, 4:19 PM CDTSevere Thunderstorm WarningMPX41 min
Apr 12, 6:35 AM CDTRiver Flood WarningMPX62 hr
Apr 15, 6:13 AM CDTWind AdvisoryMPX13 hr
Apr 18, 4:09 AM CDTWinter Storm WatchMPX12 hr
Apr 18, 3:41 PM CDTWinter Weather AdvisoryMPX28 hr
May 9, 6:36 AM CDTSpecial Weather StatementMPX114 min
May 9, 2:31 PM CDTSpecial Weather StatementMPX59 min
May 9, 3:47 PM CDTSpecial Weather StatementMPX58 min
May 10, 5:10 PM CDTMesoscale DiscussionSPC95 min
May 10, 8:45 PM CDTMesoscale DiscussionSPC90 min
May 11, 11:01 AM CDTSpecial Weather StatementMPX74 min
May 11, 11:05 AM CDTSevere Thunderstorm WarningMPX40 min
May 15, 2:28 PM CDTFrost AdvisoryMPX17 hr
May 16, 5:53 PM CDTFrost AdvisoryMPX13 hr
May 22, 4:41 AM CDTMesoscale DiscussionSPC2 hr
May 22, 12:07 PM CDTTornado WatchSPC7 hr
May 22, 2:59 PM CDTMesoscale DiscussionSPC2 hr
May 22, 3:44 PM CDTSpecial Weather StatementMPX46 min
May 28, 2:11 PM CDTSevere Thunderstorm WatchSPC6 hr
May 28, 5:16 PM CDTSpecial Weather StatementMPX44 min
May 28, 5:22 PM CDTMesoscale DiscussionSPC53 min
May 28, 5:56 PM CDTSpecial Weather StatementMPX49 min
May 30, 1:25 PM CDTSevere Thunderstorm WarningMPX35 min
May 30, 2:10 PM CDTMesoscale DiscussionSPC95 min
Jun 3, 3:33 PM CDTMesoscale DiscussionSPC87 min
Jun 3, 5:10 PM CDTTornado WatchSPC7 hr
Jun 6, 2:09 AM CDTSevere Thunderstorm WatchSPC8 hr
Jun 6, 3:24 PM CDTHeat AdvisoryMPX29 hr
Jun 8, 2:02 AM CDTMesoscale DiscussionSPC2 hr
Jun 18, 11:58 AM CDTFlood WatchMPX20 hr
Jun 18, 5:22 PM CDTSevere Thunderstorm WarningMPX53 min
Jun 18, 6:33 PM CDTFlash Flood WarningMPX6 hr
Jun 18, 7:09 PM CDTAreal Flood AdvisoryMPX5 hr
Jun 21, 4:13 AM CDTAreal Flood AdvisoryMPX119 min
Jun 21, 11:45 AM CDTMesoscale DiscussionSPC3 hr
Jun 21, 2:11 PM CDTTornado WatchSPC7 hr
Jun 30, 4:25 AM CDTHeat AdvisoryMPX40 hr
Jul 1, 2:08 PM CDTSevere Thunderstorm WatchSPC9 hr
Jul 1, 7:35 PM CDTMesoscale DiscussionSPC55 min
Jul 1, 8:27 PM CDTSevere Thunderstorm WarningMPX63 min
Jul 1, 9:30 PM CDTSevere Thunderstorm WarningMPX75 min
Jul 10, 6:16 AM CDTSevere Thunderstorm WarningMPX59 min
Jul 10, 6:39 AM CDTMesoscale DiscussionSPC66 min
Jul 10, 7:51 PM CDTMesoscale DiscussionSPC84 min
Jul 10, 9:53 PM CDTMesoscale DiscussionSPC67 min
Jul 10, 10:10 PM CDTSevere Thunderstorm WatchSPC6 hr
Jul 10, 10:56 PM CDTSpecial Weather StatementMPX49 min
Jul 10, 11:45 PM CDTMesoscale DiscussionSPC90 min
Jul 11, 12:12 AM CDTSevere Thunderstorm WarningMPX52 min
Jul 15, 3:40 AM CDTExcessive Heat WatchMPX36 hr
Jul 15, 11:20 AM CDTMesoscale DiscussionSPC85 min
Jul 15, 12:52 PM CDTFlood WatchMPX13 hr
Jul 15, 3:46 PM CDTExcessive Heat WarningMPX5 days
Jul 16, 8:01 AM CDTAreal Flood AdvisoryMPX3 hr
Jul 17, 1:27 PM CDTFlash Flood WatchMPX13 hr
Jul 18, 6:39 AM CDTAreal Flood AdvisoryMPX3 hr
Jul 19, 9:07 AM CDTSevere Thunderstorm WatchSPC6 hr
Jul 19, 11:57 AM CDTMesoscale DiscussionSPC93 min
Jul 23, 9:37 AM CDTMesoscale DiscussionSPC53 min
Jul 23, 5:26 PM CDTMesoscale DiscussionSPC64 min
Jul 23, 5:42 PM CDTSpecial Weather StatementMPX63 min
Jul 23, 11:46 PM CDTMesoscale DiscussionSPC89 min
Jul 28, 2:47 PM CDTMesoscale DiscussionSPC118 min
Jul 28, 6:55 PM CDTAreal Flood AdvisoryMPX3 hr
Jul 30, 11:28 AM CDTMesoscale DiscussionSPC3 hr
Jul 30, 1:04 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 30, 7:38 PM CDTMesoscale DiscussionSPC97 min
Jul 30, 11:07 PM CDTMesoscale DiscussionSPC53 min
Jul 30, 11:55 PM CDTSevere Thunderstorm WarningMPX35 min
Jul 31, 2:23 PM CDTMesoscale DiscussionSPC2 hr
Jul 31, 4:00 PM CDTHeat AdvisoryMPX28 hr
Aug 1, 11:29 AM CDTMesoscale DiscussionSPC31 min
Aug 1, 11:52 AM CDTSevere Thunderstorm WatchSPC7 hr
Aug 1, 1:50 PM CDTMesoscale DiscussionSPC25 min
Aug 1, 3:04 PM CDTSevere Thunderstorm WarningMPX37 min
Aug 1, 3:53 PM CDTMesoscale DiscussionSPC67 min
Aug 2, 1:24 AM CDTMesoscale DiscussionSPC96 min
Aug 2, 3:32 AM CDTMesoscale DiscussionSPC88 min
Aug 2, 5:23 AM CDTSevere Thunderstorm WatchSPC7 hr
Aug 2, 9:02 AM CDTMesoscale DiscussionSPC58 min
Aug 2, 11:51 AM CDTMesoscale DiscussionSPC24 min
Aug 13, 2:02 PM CDTSpecial Weather StatementMPX88 min
Aug 13, 3:46 PM CDTSpecial Weather StatementMPX89 min
Aug 16, 8:50 PM CDTFlash Flood WarningMPX4 hr
Aug 20, 9:49 PM CDTSpecial Weather StatementMPX11 min
Aug 23, 4:55 AM CDTMesoscale DiscussionSPC2 hr
Sep 13, 2:29 PM CDTFreeze WatchMPX14 hr
Sep 13, 2:29 PM CDTFreeze WarningMPX42 hr
Sep 14, 4:21 AM CDTFrost AdvisoryMPX9 hr
Sep 20, 3:45 PM CDTMesoscale DiscussionSPC2 hr
Sep 28, 2:52 PM CDTWind AdvisoryMPX28 hr
Sep 30, 4:07 AM CDTFrost AdvisoryMPX28 hr
Oct 5, 4:22 PM CDTWind AdvisoryMPX54 hr
Nov 7, 2:24 PM CSTWinter Storm WatchMPX21 hr
Nov 18, 2:50 PM CSTWinter Weather AdvisoryMPX30 hr
Dec 2, 12:13 PM CSTWinter Storm WatchMPX15 hr
Dec 3, 3:04 AM CSTWinter Weather AdvisoryMPX24 hr
Dec 11, 2:51 PM CSTFreezing Rain AdvisoryMPX18 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 archive20102012

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.