Alert archive / Wisconsin / Iron County

Weather alerts in Iron County, Wisconsin, 2012

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

Iron County and its neighbors

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

Alerts
115
Warnings
20
Watches
10
Advisories
28
Busiest month
May31 alerts
Busiest day
May 20, 20129 alerts

Over time

By month

Warning verification

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

Iron County, 2012

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings13562%1100%9 min
Flash flood warnings00

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 11, 3:19 PM CSTWinter Storm WarningDLH47 hr
Jan 16, 3:44 AM CSTLake Effect Snow AdvisoryDLH30 hr
Jan 17, 9:40 AM CSTLake Effect Snow WarningDLH6 hr
Jan 18, 3:46 PM CSTLake Effect Snow AdvisoryDLH20 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, 3:52 PM CDTDense Fog AdvisoryDLH20 hr
Mar 26, 4:03 AM CDTFreezing Rain AdvisoryDLH27 hr
Apr 3, 2:30 AM CDTSpecial Weather StatementDLH45 min
May 3, 5:15 AM CDTSevere Thunderstorm WarningDLH45 min
May 3, 5:54 AM CDTSevere Thunderstorm WarningDLH36 min
May 8, 12:28 PM CDTSevere Thunderstorm WarningDLH24 min
May 15, 7:32 PM CDTFrost AdvisoryDLH12 hr
May 20, 9:14 AM CDTSpecial Weather StatementDLH31 min
May 20, 10:15 AM CDTSpecial Weather StatementDLH30 min
May 20, 11:08 AM CDTSevere Thunderstorm WarningDLH37 min
May 20, 12:13 PM CDTSevere Thunderstorm WarningDLH47 min
May 20, 12:24 PM CDTSevere Thunderstorm WatchSPC7 hr
May 20, 1:13 PM CDTSevere Thunderstorm WarningDLH31 min
May 20, 1:15 PM CDTSpecial Weather StatementDLH15 min
May 20, 1:52 PM CDTSpecial Weather StatementDLH38 min
May 20, 2:04 PM CDTSevere Thunderstorm WarningDLH56 min
May 24, 3:39 AM CDTWind AdvisoryDLH14 hr
May 24, 1:34 PM CDTMesoscale DiscussionSPC116 min
May 24, 2:22 PM CDTTornado WatchSPC5 hr
May 24, 2:37 PM CDTSpecial Weather StatementDLH23 min
May 24, 2:59 PM CDTSpecial Weather StatementDLH31 min
May 24, 5:39 PM CDTAreal Flood AdvisoryDLH5 hr
May 24, 5:41 PM CDTMesoscale DiscussionSPC2 hr
May 26, 7:56 PM CDTMesoscale DiscussionSPC2 hr
May 27, 12:50 AM CDTSpecial Weather StatementDLH25 min
May 27, 2:41 AM CDTSpecial Weather StatementDLH34 min
May 27, 3:55 AM CDTSpecial Weather StatementDLH65 min
May 28, 2:07 PM CDTSevere Thunderstorm WatchSPC6 hr
May 28, 3:58 PM CDTMesoscale DiscussionSPC92 min
May 28, 7:08 PM CDTSpecial Weather StatementDLH37 min
May 28, 7:50 PM CDTSpecial Weather StatementDLH25 min
May 28, 8:19 PM CDTSpecial Weather StatementDLH26 min
May 31, 1:07 AM CDTFrost AdvisoryDLH7 hr
May 31, 3:02 PM CDTFrost AdvisoryDLH16 hr
Jun 6, 12:48 PM CDTSpecial Weather StatementDLH27 min
Jun 17, 11:49 PM CDTSpecial Weather StatementDLH41 min
Jun 20, 2:10 PM CDTMesoscale DiscussionSPC95 min
Jun 20, 3:17 PM CDTSpecial Weather StatementDLH43 min
Jun 20, 4:35 PM CDTSpecial Weather StatementDLH55 min
Jun 20, 5:12 PM CDTSpecial Weather StatementDLH63 min
Jun 20, 5:30 PM CDTAreal Flood AdvisoryDLH3 hr
Jun 22, 11:28 AM CDTMesoscale DiscussionSPC92 min
Jun 22, 12:23 PM CDTSpecial Weather StatementDLH37 min
Jun 22, 12:44 PM CDTSpecial Weather StatementDLH31 min
Jul 2, 1:59 PM CDTHeat AdvisoryDLH7 hr
Jul 2, 6:54 PM CDTSevere Thunderstorm WatchSPC6 hr
Jul 2, 9:17 PM CDTMesoscale DiscussionSPC118 min
Jul 2, 10:27 PM CDTSevere Thunderstorm WarningDLH63 min
Jul 2, 11:17 PM CDTMesoscale DiscussionSPC88 min
Jul 2, 11:26 PM CDTSevere Thunderstorm WarningDLH49 min
Jul 4, 3:57 PM CDTMesoscale DiscussionSPC93 min
Jul 4, 6:34 PM CDTSpecial Weather StatementDLH26 min
Jul 4, 7:31 PM CDTSevere Thunderstorm WatchSPC5 hr
Jul 6, 6:49 PM CDTSpecial Weather StatementDLH41 min
Jul 6, 7:30 PM CDTSpecial Weather StatementDLH45 min
Jul 6, 8:15 PM CDTSpecial Weather StatementDLH15 min
Jul 6, 8:32 PM CDTSpecial Weather StatementDLH58 min
Jul 6, 9:33 PM CDTMesoscale DiscussionSPC57 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, 4:13 AM CDTSpecial Weather StatementDLH17 min
Jul 25, 4:41 AM CDTSpecial Weather StatementDLH19 min
Jul 25, 5:24 AM CDTMesoscale DiscussionSPC66 min
Jul 25, 7:08 AM CDTSpecial Weather StatementDLH67 min
Jul 29, 8:06 PM CDTSpecial Weather StatementDLH24 min
Jul 29, 8:50 PM CDTSpecial Weather StatementDLH25 min
Aug 1, 11:49 AM CDTSevere Thunderstorm WarningDLH26 min
Aug 1, 12:16 PM CDTSevere Thunderstorm WarningDLH44 min
Aug 1, 1:07 PM CDTMesoscale DiscussionSPC23 min
Aug 1, 4:13 PM CDTSevere Thunderstorm WarningDLH48 min
Aug 1, 5:20 PM CDTSevere Thunderstorm WarningDLH14 min
Aug 4, 1:41 AM CDTMesoscale DiscussionSPC64 min
Aug 4, 2:05 AM CDTSpecial Weather StatementDLH25 min
Aug 6, 10:37 PM CDTSpecial Weather StatementDLH38 min
Aug 15, 8:20 PM CDTMesoscale DiscussionSPC85 min
Aug 16, 1:01 AM CDTSpecial Weather StatementDLH44 min
Sep 3, 6:11 AM CDTSpecial Weather StatementDLH34 min
Sep 4, 1:33 PM CDTMesoscale DiscussionSPC117 min
Sep 4, 3:27 PM CDTSevere Thunderstorm WatchSPC8 hr
Sep 4, 6:39 PM CDTMesoscale DiscussionSPC66 min
Sep 4, 6:42 PM CDTSpecial Weather StatementDLH33 min
Sep 4, 8:30 PM CDTMesoscale DiscussionSPC60 min
Sep 14, 3:19 PM CDTFrost AdvisoryDLH17 hr
Sep 21, 3:20 PM CDTFreeze WatchDLH12 hr
Sep 22, 3:15 AM CDTFreeze WarningDLH28 hr
Oct 5, 3:19 PM CDTWinter Weather AdvisoryDLH21 hr
Oct 23, 3:50 PM CDTDense Fog AdvisoryDLH18 hr
Oct 24, 6:38 PM CDTMesoscale DiscussionSPC2 hr
Oct 25, 12:37 AM CDTSpecial Weather StatementDLH38 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
Nov 26, 3:36 AM CSTLake Effect Snow AdvisoryDLH10 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 19, 1:01 PM CSTWinter Weather AdvisoryDLH39 hr
Dec 20, 3:49 PM CSTWinter Storm WarningDLH14 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.