Alert archive / Wisconsin / Shawano County

Weather alerts in Shawano County, Wisconsin, 2011

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

Shawano County and its neighbors

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

Alerts
107
Warnings
24
Watches
21
Advisories
27
Busiest month
July29 alerts
Busiest day
July 18, 201111 alerts

Over time

By month

Warning verification

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

2 of 2 tornado warnings covering Shawano County in 2011 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 0 minutes after it went out.

Shawano County, 2011

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings220%1100%0 min
Severe thunderstorm warnings15847%5100%28 min
Flash flood warnings00

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 16, 3:34 PM CSTWinter Weather AdvisoryGRB29 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 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 Storm WarningGRB39 hr
Feb 21, 4:41 AM CSTWinter Weather AdvisoryGRB18 hr
Mar 7, 2:37 PM CSTWinter Storm WatchGRB25 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 8, 2:09 PM CDTFlood WatchGRB56 hr
Apr 10, 3:13 AM CDTSevere Thunderstorm WarningGRB30 min
Apr 10, 1:28 PM CDTRiver Flood WarningGRB4 days
Apr 10, 1:30 PM CDTMesoscale DiscussionSPC2 hr
Apr 10, 3:19 PM CDTTornado Watch PDSSPC7 hr
Apr 10, 6:02 PM CDTMesoscale DiscussionSPC88 min
Apr 10, 6:14 PM CDTTornado WarningGRB46 min
Apr 14, 3:30 PM CDTWind AdvisoryGRB40 hr
Apr 18, 4:12 AM CDTWinter Storm WatchGRB18 hr
Apr 18, 9:53 PM CDTWinter Storm WarningGRB26 hr
Apr 19, 4:52 PM CDTMesoscale DiscussionSPC4 hr
May 11, 1:16 PM CDTMesoscale DiscussionSPC119 min
May 12, 1:08 PM CDTMesoscale DiscussionSPC67 min
May 12, 1:41 PM CDTSevere Thunderstorm WatchSPC5 hr
May 12, 4:13 PM CDTSevere Thunderstorm WarningGRB62 min
May 12, 6:16 PM CDTMesoscale DiscussionSPC29 min
May 16, 2:49 PM CDTFrost AdvisoryGRB16 hr
May 22, 1:49 PM CDTMesoscale DiscussionSPC56 min
May 22, 2:04 PM CDTTornado WatchSPC9 hr
May 22, 5:47 PM CDTMesoscale DiscussionSPC88 min
May 22, 6:56 PM CDTSevere Thunderstorm WarningGRB34 min
May 22, 7:23 PM CDTSevere Thunderstorm WarningGRB52 min
May 26, 4:00 AM CDTFrost AdvisoryGRB27 hr
May 31, 12:00 PM CDTMesoscale DiscussionSPC3 hr
May 31, 12:56 PM CDTSevere Thunderstorm WatchSPC8 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 6, 10:12 AM CDTMesoscale DiscussionSPC93 min
Jun 7, 1:32 AM CDTMesoscale DiscussionSPC2 hr
Jun 8, 2:02 AM CDTMesoscale DiscussionSPC2 hr
Jun 8, 1:49 PM CDTMesoscale DiscussionSPC86 min
Jun 22, 11:07 AM CDTRiver Flood AdvisoryGRB68 hr
Jun 22, 2:26 PM CDTFlood WatchGRB20 hr
Jun 22, 4:57 PM CDTRiver Flood WarningGRB4 days
Jun 27, 3:44 PM CDTMesoscale DiscussionSPC91 min
Jun 30, 4:26 AM CDTHeat AdvisoryGRB40 hr
Jul 1, 8:07 PM CDTSevere Thunderstorm WatchSPC5 hr
Jul 1, 11:38 PM CDTMesoscale DiscussionSPC97 min
Jul 1, 11:43 PM CDTSevere Thunderstorm WarningGRB42 min
Jul 5, 12:29 PM CDTMesoscale DiscussionSPC91 min
Jul 10, 6:39 AM CDTMesoscale DiscussionSPC66 min
Jul 11, 2:07 AM CDTMesoscale DiscussionSPC83 min
Jul 15, 3:42 PM CDTExcessive Heat WatchGRB24 hr
Jul 16, 3:13 PM CDTExcessive Heat WarningGRB4 days
Jul 17, 7:22 PM CDTSevere Thunderstorm WatchSPC4 hr
Jul 17, 8:40 PM CDTSevere Thunderstorm WarningGRB50 min
Jul 17, 9:08 PM CDTSevere Thunderstorm WarningGRB52 min
Jul 17, 9:24 PM CDTMesoscale DiscussionSPC66 min
Jul 17, 9:26 PM CDTSevere Thunderstorm WarningGRB64 min
Jul 18, 8:05 AM CDTSevere Thunderstorm WatchSPC4 hr
Jul 18, 9:03 AM CDTSevere Thunderstorm WarningGRB39 min
Jul 18, 2:06 PM CDTMesoscale DiscussionSPC84 min
Jul 18, 2:26 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 18, 5:20 PM CDTSevere Thunderstorm WarningGRB40 min
Jul 18, 5:42 PM CDTMesoscale DiscussionSPC63 min
Jul 19, 5:28 PM CDTMesoscale DiscussionSPC62 min
Jul 19, 5:43 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 19, 10:16 PM CDTMesoscale DiscussionSPC119 min
Jul 23, 9:37 AM CDTMesoscale DiscussionSPC53 min
Jul 23, 11:46 PM CDTMesoscale DiscussionSPC89 min
Jul 28, 7:43 PM CDTAreal Flood AdvisoryGRB117 min
Jul 30, 1:04 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 30, 2:53 PM CDTSevere Thunderstorm WarningGRB58 min
Jul 30, 2:56 PM CDTMesoscale DiscussionSPC2 hr
Jul 31, 2:23 PM CDTMesoscale DiscussionSPC2 hr
Aug 2, 2:20 AM CDTSevere Thunderstorm WatchSPC10 hr
Aug 2, 6:19 AM CDTMesoscale DiscussionSPC86 min
Aug 6, 5:56 PM CDTSevere Thunderstorm WarningGRB64 min
Aug 6, 6:58 PM CDTSevere Thunderstorm WarningGRB42 min
Aug 6, 10:51 PM CDTAreal Flood AdvisoryGRB2 hr
Aug 19, 1:51 PM CDTMesoscale DiscussionSPC54 min
Aug 23, 4:56 PM CDTMesoscale DiscussionSPC94 min
Aug 23, 5:19 PM CDTTornado WatchSPC6 hr
Aug 23, 5:44 PM CDTSevere Thunderstorm WarningGRB61 min
Aug 23, 6:56 PM CDTTornado WarningGRB19 min
Aug 23, 8:45 PM CDTMesoscale DiscussionSPC60 min
Sep 1, 3:40 AM CDTDense Fog AdvisoryGRB3 hr
Sep 2, 7:50 AM CDTSevere Thunderstorm WatchSPC3 hr
Sep 2, 10:03 AM CDTSevere Thunderstorm WarningGRB27 min
Sep 15, 11:33 AM CDTFrost AdvisoryGRB20 hr
Sep 27, 10:17 PM CDTDense Fog AdvisoryGRB9 hr
Sep 28, 2:27 PM CDTWind AdvisoryGRB34 hr
Sep 30, 2:36 PM CDTFrost AdvisoryGRB17 hr
Oct 1, 11:59 AM CDTFrost AdvisoryGRB21 hr
Oct 12, 1:50 AM CDTDense Fog AdvisoryGRB8 hr
Nov 8, 3:31 PM CSTWinter Storm WarningGRB27 hr
Nov 8, 3:31 PM CSTWinter Weather AdvisoryGRB27 hr
Nov 9, 4:41 AM CSTMesoscale DiscussionSPC4 hr
Nov 9, 10:50 AM CSTMesoscale DiscussionSPC4 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.