Alert archive / Wisconsin / Milwaukee County

Weather alerts in Milwaukee County, Wisconsin, 2012

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

Milwaukee County and its neighbors

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

Alerts
81
Warnings
19
Watches
14
Advisories
36
Busiest month
May15 alerts
Busiest day
May 3, 20124 alerts

Over time

By month

Warning verification

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

Milwaukee County, 2012

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings12833%1100%44 min
Flash flood warnings00

Each office's whole area, 2012

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Milwaukee, WI: severe thunderstorm warnings945047%16081%24 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 11, 3:51 AM CSTWinter Storm WatchMKX11 hr
Jan 11, 2:51 PM CSTWinter Weather AdvisoryMKX36 hr
Jan 17, 3:46 AM CSTWinter Weather AdvisoryMKX10 hr
Jan 19, 3:41 AM CSTWinter Storm WatchMKX11 hr
Jan 19, 2:23 PM CSTWinter Weather AdvisoryMKX30 hr
Jan 20, 8:26 PM CSTLake Effect Snow AdvisoryMKX7 hr
Jan 23, 2:31 AM CSTDense Fog AdvisoryMKX6 hr
Feb 2, 2:33 PM CSTDense Fog AdvisoryMKX21 hr
Feb 15, 10:02 PM CSTDense Fog AdvisoryMKX5 hr
Feb 22, 10:57 AM CSTWinter Storm WatchMKX17 hr
Feb 23, 3:41 AM CSTWinter Weather AdvisoryMKX29 hr
Feb 23, 8:45 PM CSTMesoscale DiscussionSPC5 hr
Feb 26, 3:44 AM CSTWind AdvisoryMKX12 hr
Mar 1, 11:06 AM CSTWinter Storm WatchMKX10 hr
Mar 1, 8:51 PM CSTWinter Storm WarningMKX26 hr
Mar 7, 3:50 AM CSTWind AdvisoryMKX12 hr
Mar 12, 11:39 AM CDTSevere Thunderstorm WarningMKX36 min
Mar 23, 10:07 PM CDTDense Fog AdvisoryMKX13 hr
Mar 24, 11:14 AM CDTDense Fog AdvisoryMKX106 min
Apr 4, 3:10 PM CDTFreeze WatchMKX24 hr
Apr 5, 2:57 PM CDTFreeze WarningMKX17 hr
Apr 7, 3:50 PM CDTFire Weather WatchMKX12 hr
Apr 8, 3:54 AM CDTRed Flag WarningMKX16 hr
Apr 16, 3:49 AM CDTWind AdvisoryMKX15 hr
May 2, 3:37 AM CDTDense Fog AdvisoryMKX3 hr
May 3, 10:34 AM CDTMesoscale DiscussionSPC86 min
May 3, 1:07 PM CDTSevere Thunderstorm WatchSPC6 hr
May 3, 2:15 PM CDTSevere Thunderstorm WarningMKX30 min
May 3, 2:53 PM CDTMesoscale DiscussionSPC67 min
May 6, 12:22 PM CDTSevere Thunderstorm WarningMKX23 min
May 6, 7:37 PM CDTAreal Flood AdvisoryMKX3 hr
May 15, 4:58 PM CDTMesoscale DiscussionSPC62 min
May 15, 6:00 PM CDTSevere Thunderstorm WarningMKX45 min
May 15, 6:10 PM CDTSevere Thunderstorm WarningMKX35 min
May 24, 3:29 AM CDTWind AdvisoryMKX18 hr
May 28, 12:54 PM CDTSevere Thunderstorm WatchSPC7 hr
May 28, 3:58 PM CDTMesoscale DiscussionSPC92 min
May 28, 6:27 PM CDTSevere Thunderstorm WarningMKX48 min
May 28, 7:04 PM CDTSevere Thunderstorm WarningMKX26 min
Jun 16, 11:29 PM CDTSevere Thunderstorm WarningMKX16 min
Jun 18, 3:40 AM CDTWind AdvisoryMKX15 hr
Jun 27, 10:04 AM CDTHeat AdvisoryMKX33 hr
Jul 2, 10:05 AM CDTHeat AdvisoryMKX52 hr
Jul 3, 4:17 AM CDTExcessive Heat WarningMKX5 days
Jul 4, 10:54 PM CDTMesoscale DiscussionSPC96 min
Jul 15, 4:08 AM CDTHeat AdvisoryMKX65 hr
Jul 18, 12:58 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 18, 7:43 PM CDTSevere Thunderstorm WatchSPC5 hr
Jul 22, 9:35 PM CDTHeat AdvisoryMKX22 hr
Jul 24, 9:27 AM CDTHeat AdvisoryMKX36 hr
Jul 25, 6:38 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 25, 11:34 PM CDTMesoscale DiscussionSPC86 min
Jul 26, 1:26 AM CDTSevere Thunderstorm WarningMKX64 min
Jul 26, 1:40 AM CDTMesoscale DiscussionSPC65 min
Jul 26, 12:09 PM CDTMesoscale DiscussionSPC2 hr
Jul 31, 12:39 AM CDTMesoscale DiscussionSPC96 min
Jul 31, 12:50 AM CDTSevere Thunderstorm WarningMKX40 min
Aug 4, 1:46 PM CDTSevere Thunderstorm WatchSPC4 hr
Aug 16, 3:57 AM CDTMesoscale DiscussionSPC3 hr
Aug 26, 11:53 PM CDTDense Fog AdvisoryMKX8 hr
Sep 4, 3:27 PM CDTSevere Thunderstorm WatchSPC8 hr
Sep 4, 9:07 PM CDTSevere Thunderstorm WarningMKX83 min
Sep 17, 1:30 PM CDTMesoscale DiscussionSPC60 min
Sep 17, 2:58 PM CDTSevere Thunderstorm WarningMKX62 min
Sep 19, 1:37 PM CDTWind AdvisoryMKX7 hr
Oct 5, 3:52 AM CDTFrost AdvisoryMKX24 hr
Oct 6, 3:47 AM CDTFrost AdvisoryMKX11 hr
Oct 6, 3:47 AM CDTFreeze WarningMKX23 hr
Oct 7, 8:18 PM CDTFreeze WarningMKX11 hr
Oct 11, 4:04 AM CDTFrost AdvisoryMKX27 hr
Oct 22, 8:59 PM CDTDense Fog AdvisoryMKX12 hr
Oct 23, 3:39 PM CDTDense Fog AdvisoryMKX20 hr
Oct 30, 3:17 AM CDTWind AdvisoryMKX12 hr
Nov 11, 3:51 AM CSTWind AdvisoryMKX14 hr
Nov 16, 10:26 PM CSTDense Fog AdvisoryMKX11 hr
Nov 20, 5:34 PM CSTDense Fog AdvisoryMKX18 hr
Dec 2, 8:54 PM CSTDense Fog AdvisoryMKX12 hr
Dec 3, 9:07 AM CSTDense Fog AdvisoryMKX3 hr
Dec 18, 10:41 AM CSTWinter Weather AdvisoryMKX7 hr
Dec 18, 3:47 PM CSTWinter Storm WatchMKX12 hr
Dec 18, 3:47 PM CSTWinter Storm WarningMKX57 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.