Alert archive / Wisconsin / Portage County

Weather alerts in Portage County, Wisconsin, 2016

106 weather alerts in 2016, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Portage County and its neighbors

Each county as a circle sized by its count in 2016. Tap one for its archive.

Alerts
106
Warnings
19
Watches
12
Advisories
36
Busiest month
July18 alerts
Busiest day
September 21, 20166 alerts

Over time

By month

Warning verification

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

Portage County, 2016

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings11645%475%19 min
Flash flood warnings00

Each office's whole area, 2016

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Green Bay, WI: tornado warnings3167%617%0 min
NWS Green Bay, WI: severe thunderstorm warnings955839%15073%27 min
NWS Green Bay, WI: flash flood warnings110%1100%101 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 7, 8:42 PM CSTFreezing Rain AdvisoryGRB3 hr
Jan 8, 11:49 AM CSTDense Fog AdvisoryGRB11 hr
Jan 10, 3:19 PM CSTWind Chill AdvisoryGRB18 hr
Jan 11, 3:19 PM CSTWind Chill AdvisoryGRB20 hr
Jan 12, 2:53 PM CSTWind Chill AdvisoryGRB18 hr
Jan 16, 3:40 AM CSTWind Chill AdvisoryGRB56 hr
Jan 25, 3:50 AM CSTWinter Weather AdvisoryGRB29 hr
Jan 31, 4:20 AM CSTWinter Storm WatchGRB35 hr
Feb 1, 5:01 AM CSTWinter Storm WarningGRB54 hr
Feb 2, 11:35 AM CSTMesoscale DiscussionSPC5 hr
Feb 2, 8:37 PM CSTWinter Weather AdvisoryGRB9 hr
Feb 3, 4:15 AM CSTWinter Weather AdvisoryGRB105 min
Feb 12, 3:11 AM CSTWind Chill AdvisoryGRB30 hr
Feb 18, 2:46 PM CSTWind AdvisoryGRB29 hr
Feb 23, 3:29 AM CSTFreezing Fog AdvisoryGRB6 hr
Mar 15, 3:23 PM CDTWind AdvisoryGRB29 hr
Mar 16, 12:42 PM CDTRiver Flood AdvisoryGRB26 hr
Mar 16, 12:42 PM CDTRiver Flood AdvisoryGRB27 hr
Mar 16, 12:42 PM CDTRiver Flood AdvisoryGRB27 hr
Mar 16, 10:51 PM CDTRiver Flood WarningGRB69 hr
Mar 16, 10:51 PM CDTRiver Flood WarningGRB69 hr
Mar 21, 2:59 PM CDTWinter Storm WatchGRB38 hr
Mar 22, 3:22 PM CDTWinter Storm WarningGRB49 hr
Mar 23, 9:39 PM CDTMesoscale DiscussionSPC6 hr
Apr 21, 5:46 PM CDTSpecial Weather StatementGRB89 min
Apr 21, 7:16 PM CDTSpecial Weather StatementGRB44 min
Apr 25, 3:38 PM CDTSpecial Weather StatementGRB22 min
May 3, 7:18 PM CDTSpecial Weather StatementGRB87 min
May 4, 3:45 AM CDTFrost AdvisoryGRB27 hr
May 13, 2:48 PM CDTFreeze WatchGRB13 hr
May 14, 4:17 AM CDTFreeze WarningGRB28 hr
May 17, 2:57 PM CDTFrost AdvisoryGRB16 hr
May 18, 2:22 PM CDTFrost AdvisoryGRB17 hr
May 25, 2:17 PM CDTMesoscale DiscussionSPC118 min
May 25, 3:54 PM CDTSpecial Weather StatementGRB36 min
May 25, 4:30 PM CDTSevere Thunderstorm WarningGRB45 min
Jun 3, 2:31 PM CDTMesoscale DiscussionSPC2 hr
Jun 3, 6:40 PM CDTSevere Thunderstorm WarningGRB65 min
Jun 5, 4:27 PM CDTSevere Thunderstorm WarningGRB48 min
Jun 5, 5:01 PM CDTSevere Thunderstorm WarningGRB59 min
Jun 10, 2:44 PM CDTTornado WatchSPC5 hr
Jun 10, 2:54 PM CDTMesoscale DiscussionSPC96 min
Jun 10, 5:09 PM CDTMesoscale DiscussionSPC2 hr
Jun 10, 6:21 PM CDTSevere Thunderstorm WarningGRB54 min
Jun 15, 12:57 PM CDTMesoscale DiscussionSPC2 hr
Jun 15, 2:13 PM CDTTornado WatchSPC6 hr
Jun 15, 3:44 PM CDTMesoscale DiscussionSPC2 hr
Jun 15, 4:27 PM CDTSevere Thunderstorm WarningGRB33 min
Jun 23, 1:30 AM CDTSpecial Weather StatementGRB60 min
Jun 26, 12:33 AM CDTSpecial Weather StatementGRB87 min
Jun 26, 1:59 AM CDTSpecial Weather StatementGRB91 min
Jun 30, 2:32 PM CDTSpecial Weather StatementGRB28 min
Jun 30, 7:46 PM CDTSpecial Weather StatementGRB44 min
Jun 30, 8:04 PM CDTSpecial Weather StatementGRB41 min
Jul 5, 9:50 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 5, 10:46 PM CDTMesoscale DiscussionSPC89 min
Jul 7, 4:52 PM CDTSpecial Weather StatementGRB53 min
Jul 7, 7:04 PM CDTSpecial Weather StatementGRB41 min
Jul 7, 7:44 PM CDTSpecial Weather StatementGRB46 min
Jul 8, 2:33 AM CDTSpecial Weather StatementGRB87 min
Jul 13, 8:15 PM CDTSevere Thunderstorm WarningGRB24 min
Jul 20, 10:49 AM CDTSpecial Weather StatementGRB41 min
Jul 20, 11:39 AM CDTSpecial Weather StatementGRB51 min
Jul 20, 3:02 PM CDTHeat AdvisoryGRB13 hr
Jul 21, 6:39 AM CDTMesoscale DiscussionSPC2 hr
Jul 21, 7:13 AM CDTSevere Thunderstorm WarningGRB68 min
Jul 21, 3:01 PM CDTSpecial Weather StatementGRB44 min
Jul 21, 3:50 PM CDTSpecial Weather StatementGRB40 min
Jul 21, 4:00 PM CDTSevere Thunderstorm WarningGRB75 min
Jul 27, 5:15 PM CDTMesoscale DiscussionSPC90 min
Aug 4, 12:15 PM CDTMesoscale DiscussionSPC2 hr
Aug 4, 12:30 PM CDTSpecial Weather StatementGRB60 min
Aug 4, 1:31 PM CDTSpecial Weather StatementGRB89 min
Aug 11, 8:50 AM CDTSpecial Weather StatementGRB55 min
Aug 16, 10:29 PM CDTSpecial Weather StatementGRB91 min
Sep 5, 6:19 PM CDTFlood WatchGRB49 hr
Sep 6, 2:22 PM CDTMesoscale DiscussionSPC2 hr
Sep 6, 5:18 PM CDTSevere Thunderstorm WatchSPC4 hr
Sep 20, 1:32 AM CDTDense Fog AdvisoryGRB7 hr
Sep 21, 2:42 AM CDTSevere Thunderstorm WarningGRB48 min
Sep 21, 3:02 AM CDTFlash Flood WatchGRB30 hr
Sep 21, 2:30 PM CDTAreal Flood AdvisoryGRB6 hr
Sep 21, 2:31 PM CDTMesoscale DiscussionSPC89 min
Sep 21, 2:37 PM CDTSpecial Weather StatementGRB23 min
Sep 21, 2:56 PM CDTSevere Thunderstorm WarningGRB22 min
Sep 21, 10:49 PM CDTAreal Flood WarningGRB21 hr
Sep 24, 3:12 PM CDTFlash Flood WatchGRB16 hr
Oct 7, 3:42 AM CDTFrost AdvisoryGRB28 hr
Oct 8, 2:28 PM CDTFrost AdvisoryGRB18 hr
Oct 12, 4:46 AM CDTFreeze WarningGRB28 hr
Oct 17, 2:58 PM CDTMesoscale DiscussionSPC2 hr
Nov 4, 5:48 AM CDTDense Fog AdvisoryGRB6 hr
Nov 18, 4:06 AM CSTWind AdvisoryGRB48 hr
Nov 22, 3:47 AM CSTWinter Weather AdvisoryGRB41 hr
Nov 26, 10:50 PM CSTDense Fog AdvisoryGRB14 hr
Dec 3, 2:36 PM CSTWinter Weather AdvisoryGRB30 hr
Dec 9, 12:11 PM CSTWinter Storm WatchGRB26 hr
Dec 10, 2:26 PM CSTWinter Weather AdvisoryGRB28 hr
Dec 14, 3:37 AM CSTWind Chill AdvisoryGRB31 hr
Dec 14, 1:54 PM CSTWinter Storm WatchGRB22 hr
Dec 15, 11:35 AM CSTWinter Storm WarningGRB58 hr
Dec 17, 3:24 PM CSTWind Chill AdvisoryGRB43 hr
Dec 22, 2:21 PM CSTWinter Weather AdvisoryGRB33 hr
Dec 24, 2:54 PM CSTFreezing Rain AdvisoryGRB13 hr
Dec 25, 3:35 AM CSTFreezing Rain AdvisoryGRB19 hr
Dec 25, 9:25 PM CSTWind AdvisoryGRB25 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 archive20152017

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.