Alert archive / Wisconsin / Vilas County

Weather alerts in Vilas County, Wisconsin, 2011

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

Vilas County and its neighbors

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

Alerts
82
Warnings
16
Watches
15
Advisories
32
Busiest month
July16 alerts
Busiest day
July 18, 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.

0 of 1 tornado warnings covering Vilas County in 2011 had a tornado report inside them.

Vilas County, 2011

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%0
Severe thunderstorm warnings11464%3100%30 min
Flash flood warnings110%1100%25 min

Each office's whole area, 2011

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Green Bay, WI: tornado warnings251348%2090%17 min
NWS Green Bay, WI: severe thunderstorm warnings1277144%22771%25 min
NWS Green Bay, WI: flash flood warnings3233%7100%65 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 5, 3:15 PM CSTLake Effect Snow AdvisoryGRB28 hr
Jan 20, 3:35 AM CSTWind Chill AdvisoryGRB31 hr
Jan 28, 4:01 AM CSTWinter Weather AdvisoryGRB23 hr
Feb 2, 2:45 PM CSTWind Chill AdvisoryGRB19 hr
Feb 7, 3:18 PM CSTWind Chill AdvisoryGRB19 hr
Feb 8, 3:30 PM CSTWind Chill AdvisoryGRB20 hr
Feb 9, 2:48 PM CSTWind Chill AdvisoryGRB19 hr
Feb 16, 2:36 PM CSTDense Fog AdvisoryGRB24 hr
Feb 17, 3:08 PM CSTWind AdvisoryGRB39 hr
Feb 18, 3:08 PM CSTWinter Storm WatchGRB23 hr
Feb 19, 2:08 PM CSTWinter Weather AdvisoryGRB39 hr
Mar 8, 3:26 PM CSTWinter Weather AdvisoryGRB27 hr
Mar 20, 3:01 PM CDTWinter Storm WatchGRB37 hr
Mar 22, 4:16 AM CDTWinter Storm WarningGRB39 hr
Mar 22, 3:49 PM CDTMesoscale DiscussionSPC5 hr
Apr 3, 4:11 AM CDTWinter Weather AdvisoryGRB9 hr
Apr 9, 11:36 PM CDTSevere Thunderstorm WarningGRB39 min
Apr 10, 3:19 PM CDTTornado Watch PDSSPC7 hr
Apr 10, 6:02 PM CDTMesoscale DiscussionSPC88 min
Apr 15, 4:42 AM CDTWinter Weather AdvisoryGRB35 hr
Apr 18, 4:12 AM CDTWinter Storm WatchGRB18 hr
Apr 18, 9:53 PM CDTWinter Weather AdvisoryGRB26 hr
May 11, 1:43 AM CDTSevere Thunderstorm WarningGRB47 min
May 11, 2:10 AM CDTSevere Thunderstorm WarningGRB50 min
May 22, 2:04 PM CDTTornado WatchSPC9 hr
May 22, 6:35 PM CDTTornado WarningGRB55 min
May 22, 7:42 PM CDTMesoscale DiscussionSPC63 min
May 26, 4:00 AM CDTFrost AdvisoryGRB27 hr
May 26, 2:28 PM CDTFreeze WarningGRB16 hr
May 30, 2:10 PM CDTMesoscale DiscussionSPC95 min
May 31, 12:00 PM CDTMesoscale DiscussionSPC3 hr
Jun 1, 3:09 AM CDTWind AdvisoryGRB13 hr
Jun 3, 3:33 PM CDTMesoscale DiscussionSPC87 min
Jun 3, 5:10 PM CDTTornado WatchSPC7 hr
Jun 3, 10:49 PM CDTSevere Thunderstorm WatchSPC5 hr
Jun 6, 2:02 PM CDTMesoscale DiscussionSPC118 min
Jun 7, 1:32 AM CDTMesoscale DiscussionSPC2 hr
Jun 27, 3:44 PM CDTMesoscale DiscussionSPC91 min
Jul 1, 8:07 PM CDTSevere Thunderstorm WatchSPC5 hr
Jul 1, 10:04 PM CDTMesoscale DiscussionSPC116 min
Jul 1, 11:38 PM CDTMesoscale DiscussionSPC97 min
Jul 16, 3:13 PM CDTHeat AdvisoryGRB52 hr
Jul 17, 6:11 PM CDTSevere Thunderstorm WarningGRB64 min
Jul 17, 6:11 PM CDTMesoscale DiscussionSPC64 min
Jul 17, 7:05 PM CDTFlash Flood WarningGRB3 hr
Jul 17, 7:15 PM CDTSevere Thunderstorm WarningGRB54 min
Jul 17, 7:22 PM CDTSevere Thunderstorm WatchSPC4 hr
Jul 17, 9:24 PM CDTMesoscale DiscussionSPC66 min
Jul 18, 2:06 PM CDTMesoscale DiscussionSPC84 min
Jul 18, 2:26 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 18, 2:27 PM CDTSevere Thunderstorm WarningGRB32 min
Jul 19, 3:02 PM CDTHeat AdvisoryGRB29 hr
Jul 30, 11:28 AM CDTMesoscale DiscussionSPC3 hr
Jul 30, 1:04 PM CDTSevere Thunderstorm WatchSPC7 hr
Aug 2, 2:20 AM CDTSevere Thunderstorm WatchSPC10 hr
Aug 2, 4:17 AM CDTSevere Thunderstorm WarningGRB58 min
Aug 2, 11:09 AM CDTSevere Thunderstorm WarningGRB51 min
Aug 19, 1:35 PM CDTSevere Thunderstorm WarningGRB40 min
Aug 19, 1:51 PM CDTMesoscale DiscussionSPC54 min
Aug 19, 2:07 PM CDTSevere Thunderstorm WarningGRB38 min
Aug 19, 2:43 PM CDTSevere Thunderstorm WarningGRB27 min
Sep 5, 3:21 AM CDTFrost AdvisoryGRB29 hr
Sep 6, 2:15 PM CDTFrost AdvisoryGRB17 hr
Sep 12, 1:15 PM CDTMesoscale DiscussionSPC2 hr
Sep 12, 5:31 PM CDTMesoscale DiscussionSPC119 min
Sep 12, 7:09 PM CDTSevere Thunderstorm WatchSPC4 hr
Sep 14, 4:43 AM CDTFrost AdvisoryGRB27 hr
Sep 15, 11:33 AM CDTFreeze WarningGRB20 hr
Sep 16, 2:35 PM CDTFrost AdvisoryGRB17 hr
Sep 27, 10:17 PM CDTDense Fog AdvisoryGRB9 hr
Sep 28, 2:27 PM CDTWind AdvisoryGRB34 hr
Oct 12, 1:50 AM CDTDense Fog AdvisoryGRB8 hr
Nov 7, 3:01 PM CSTWinter Storm WatchGRB25 hr
Nov 8, 3:31 PM CSTWinter Weather AdvisoryGRB27 hr
Nov 18, 3:00 PM CSTWinter Weather AdvisoryGRB33 hr
Nov 19, 1:05 PM CSTMesoscale DiscussionSPC4 hr
Dec 2, 3:10 PM CSTWinter Storm WatchGRB13 hr
Dec 3, 3:58 AM CSTWinter Weather AdvisoryGRB24 hr
Dec 11, 2:54 PM CSTFreezing Rain AdvisoryGRB19 hr
Dec 12, 8:23 PM CSTFreezing Rain AdvisoryGRB7 hr
Dec 13, 3:48 AM CSTDense Fog AdvisoryGRB5 hr
Dec 14, 3:07 PM CSTDense Fog AdvisoryGRB8 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.