Alert archive / Wisconsin / Bayfield County

Weather alerts in Bayfield County, Wisconsin, 2012

125 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Bayfield County and its neighbors

Each county as a circle sized by its count in 2012. Tap one for its archive.

Alerts
125
Warnings
20
Watches
12
Advisories
25
Busiest month
May27 alerts
Busiest day
May 27, 201210 alerts

Over time

By month

Warning verification

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

Bayfield County, 2012

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings11282%475%18 min
Flash flood warnings10100%0

Each office's whole area, 2012

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Duluth, MN: tornado warnings70100%20%
NWS Duluth, MN: severe thunderstorm warnings1683877%9380%24 min
NWS Duluth, MN: flash flood warnings110100%0

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 11, 4:11 AM CSTLake Effect Snow AdvisoryDLH54 hr
Jan 22, 3:13 PM CSTWinter Weather AdvisoryDLH33 hr
Jan 30, 3:42 PM CSTWinter Weather AdvisoryDLH18 hr
Feb 24, 4:51 AM CSTWinter Weather AdvisoryDLH30 hr
Feb 25, 3:48 AM CSTWinter Weather AdvisoryDLH47 hr
Feb 26, 11:02 AM CSTWinter Weather AdvisoryDLH25 hr
Feb 26, 4:14 PM CSTWinter Storm WatchDLH23 hr
Feb 27, 3:15 PM CSTWinter Storm WarningDLH52 hr
Feb 28, 8:41 PM CSTMesoscale DiscussionSPC6 hr
Mar 2, 10:34 PM CSTWinter Weather AdvisoryDLH16 hr
Mar 23, 8:45 AM CDTDense Fog AdvisoryDLH4 hr
Mar 23, 3:52 PM CDTDense Fog AdvisoryDLH20 hr
May 15, 7:32 PM CDTFrost AdvisoryDLH12 hr
May 19, 9:12 PM CDTSpecial Weather StatementDLH33 min
May 24, 9:41 AM CDTSpecial Weather StatementDLH34 min
May 24, 2:18 PM CDTSpecial Weather StatementDLH27 min
May 24, 2:22 PM CDTTornado WatchSPC5 hr
May 24, 3:36 PM CDTSpecial Weather StatementDLH39 min
May 24, 4:14 PM CDTSpecial Weather StatementDLH31 min
May 24, 4:48 PM CDTSpecial Weather StatementDLH42 min
May 26, 7:56 PM CDTMesoscale DiscussionSPC2 hr
May 26, 8:04 PM CDTSpecial Weather StatementDLH26 min
May 26, 8:54 PM CDTSpecial Weather StatementDLH36 min
May 26, 9:01 PM CDTSpecial Weather StatementDLH29 min
May 26, 9:39 PM CDTSpecial Weather StatementDLH36 min
May 27, 2:41 AM CDTSpecial Weather StatementDLH34 min
May 27, 3:55 AM CDTSpecial Weather StatementDLH65 min
May 27, 6:10 AM CDTSpecial Weather StatementDLH20 min
May 27, 7:28 AM CDTAreal Flood WarningDLH8 hr
May 27, 4:46 PM CDTAreal Flood WarningDLH24 hr
May 28, 1:48 PM CDTMesoscale DiscussionSPC57 min
May 28, 2:07 PM CDTSevere Thunderstorm WatchSPC6 hr
May 28, 3:11 PM CDTSevere Thunderstorm WarningDLH49 min
May 28, 3:49 PM CDTSevere Thunderstorm WarningDLH41 min
May 28, 3:58 PM CDTMesoscale DiscussionSPC92 min
May 28, 4:27 PM CDTSevere Thunderstorm WarningDLH33 min
May 28, 6:24 PM CDTSevere Thunderstorm WarningDLH51 min
May 31, 1:07 AM CDTFrost AdvisoryDLH7 hr
May 31, 3:02 PM CDTFrost AdvisoryDLH16 hr
Jun 6, 3:12 PM CDTSpecial Weather StatementDLH18 min
Jun 14, 8:35 AM CDTSpecial Weather StatementDLH25 min
Jun 14, 11:44 AM CDTSpecial Weather StatementDLH31 min
Jun 14, 2:48 PM CDTSpecial Weather StatementDLH12 min
Jun 14, 3:03 PM CDTSpecial Weather StatementDLH12 min
Jun 16, 11:54 AM CDTSpecial Weather StatementDLH21 min
Jun 17, 9:05 PM CDTSpecial Weather StatementDLH25 min
Jun 17, 10:54 PM CDTSpecial Weather StatementDLH36 min
Jun 19, 11:30 AM CDTSpecial Weather StatementDLH30 min
Jun 19, 4:14 PM CDTSevere Thunderstorm WarningDLH61 min
Jun 19, 9:13 PM CDTSpecial Weather StatementDLH17 min
Jun 19, 11:37 PM CDTMesoscale DiscussionSPC83 min
Jun 20, 12:18 AM CDTAreal Flood WarningDLH12 hr
Jun 20, 2:08 AM CDTSpecial Weather StatementDLH67 min
Jun 20, 3:26 AM CDTSpecial Weather StatementDLH64 min
Jun 20, 9:40 AM CDTMesoscale DiscussionSPC95 min
Jun 20, 11:16 AM CDTSpecial Weather StatementDLH44 min
Jun 20, 2:10 PM CDTMesoscale DiscussionSPC95 min
Jul 2, 1:59 PM CDTHeat AdvisoryDLH7 hr
Jul 2, 6:40 PM CDTMesoscale DiscussionSPC65 min
Jul 2, 6:54 PM CDTSevere Thunderstorm WatchSPC6 hr
Jul 2, 9:12 PM CDTSevere Thunderstorm WarningDLH48 min
Jul 2, 9:17 PM CDTMesoscale DiscussionSPC118 min
Jul 2, 9:54 PM CDTSevere Thunderstorm WarningDLH36 min
Jul 2, 10:27 PM CDTSevere Thunderstorm WarningDLH63 min
Jul 2, 11:17 PM CDTMesoscale DiscussionSPC88 min
Jul 4, 12:34 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 4, 7:31 PM CDTSevere Thunderstorm WatchSPC5 hr
Jul 4, 9:50 PM CDTSpecial Weather StatementDLH40 min
Jul 6, 9:44 AM CDTSpecial Weather StatementDLH16 min
Jul 6, 6:02 PM CDTMesoscale DiscussionSPC28 min
Jul 15, 3:57 PM CDTHeat AdvisoryDLH29 hr
Jul 25, 2:05 AM CDTMesoscale DiscussionSPC55 min
Jul 25, 2:24 AM CDTSevere Thunderstorm WatchSPC5 hr
Jul 25, 2:51 AM CDTSpecial Weather StatementDLH24 min
Jul 25, 3:18 AM CDTSpecial Weather StatementDLH12 min
Jul 25, 3:33 AM CDTSpecial Weather StatementDLH27 min
Jul 25, 4:13 AM CDTSpecial Weather StatementDLH17 min
Jul 25, 4:41 AM CDTSpecial Weather StatementDLH19 min
Jul 25, 5:24 AM CDTMesoscale DiscussionSPC66 min
Aug 3, 7:33 PM CDTSevere Thunderstorm WatchSPC6 hr
Aug 3, 10:33 PM CDTMesoscale DiscussionSPC87 min
Aug 4, 12:47 AM CDTSpecial Weather StatementDLH43 min
Aug 4, 1:31 AM CDTSpecial Weather StatementDLH44 min
Aug 6, 10:37 PM CDTSpecial Weather StatementDLH38 min
Aug 15, 3:25 PM CDTSevere Thunderstorm WatchSPC8 hr
Aug 15, 8:20 PM CDTMesoscale DiscussionSPC85 min
Aug 23, 11:28 PM CDTSpecial Weather StatementDLH47 min
Aug 24, 12:20 AM CDTSpecial Weather StatementDLH55 min
Aug 24, 12:46 AM CDTSevere Thunderstorm WarningDLH44 min
Aug 24, 1:31 AM CDTSpecial Weather StatementDLH59 min
Aug 24, 1:41 AM CDTAreal Flood AdvisoryDLH4 hr
Aug 24, 2:50 AM CDTFlash Flood WarningDLH5 hr
Aug 24, 3:08 AM CDTSpecial Weather StatementDLH52 min
Sep 3, 3:04 AM CDTSpecial Weather StatementDLH26 min
Sep 4, 1:33 PM CDTMesoscale DiscussionSPC117 min
Sep 4, 3:27 PM CDTSevere Thunderstorm WatchSPC8 hr
Sep 4, 4:39 PM CDTSevere Thunderstorm WarningDLH36 min
Sep 4, 6:39 PM CDTMesoscale DiscussionSPC66 min
Sep 4, 8:30 PM CDTMesoscale DiscussionSPC60 min
Sep 13, 4:16 AM CDTFrost AdvisoryDLH28 hr
Sep 14, 3:19 PM CDTFrost AdvisoryDLH17 hr
Sep 19, 2:15 PM CDTSpecial Weather StatementDLH45 min
Sep 19, 2:33 PM CDTSpecial Weather StatementDLH42 min
Sep 19, 3:03 PM CDTSpecial Weather StatementDLH42 min
Sep 19, 3:38 PM CDTSpecial Weather StatementDLH52 min
Sep 19, 3:39 PM CDTSevere Thunderstorm WarningDLH35 min
Sep 21, 3:20 PM CDTFreeze WatchDLH12 hr
Sep 21, 7:47 PM CDTSpecial Weather StatementDLH13 min
Sep 22, 3:15 AM CDTFreeze WarningDLH28 hr
Sep 30, 12:23 AM CDTDense Fog AdvisoryDLH9 hr
Oct 23, 9:26 AM CDTSpecial Weather StatementDLH19 min
Oct 23, 9:52 AM CDTSpecial Weather StatementDLH38 min
Oct 23, 3:50 PM CDTDense Fog AdvisoryDLH18 hr
Oct 25, 11:51 AM CDTSpecial Weather StatementDLH39 min
Nov 10, 10:45 AM CSTSpecial Weather StatementDLH30 min
Nov 20, 8:02 PM CSTDense Fog AdvisoryDLH12 hr
Nov 22, 3:38 PM CSTWinter Weather AdvisoryDLH24 hr
Nov 23, 2:47 AM CSTWinter Storm WarningDLH13 hr
Dec 1, 3:38 PM CSTFreezing Fog AdvisoryDLH16 hr
Dec 1, 8:16 PM CSTDense Fog AdvisoryDLH3 hr
Dec 7, 4:12 AM CSTWinter Storm WatchDLH12 hr
Dec 7, 3:45 PM CSTWinter Storm WarningDLH68 hr
Dec 10, 12:04 PM CSTWinter Storm WarningDLH2 hr
Dec 19, 1:01 PM CSTWinter Weather AdvisoryDLH39 hr
Dec 27, 10:41 AM CSTWinter Weather AdvisoryDLH47 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 archive20112013

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.