Alert archive / Wisconsin / Oconto County

Weather alerts in Oconto County, Wisconsin, 2020

102 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Oconto County and its neighbors

Each county as a circle sized by its count in 2020. Tap one for its archive.

Alerts
102
Warnings
23
Watches
8
Advisories
40
Busiest month
May25 alerts
Busiest day
July 19, 20205 alerts

Over time

By month

Warning verification

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

Oconto County, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings8538%580%26 min
Flash flood warnings00

Each office's whole area, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Green Bay, WI: tornado warnings10100%30%
NWS Green Bay, WI: severe thunderstorm warnings803853%11072%23 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 8, 3:04 PM CSTWinter Weather AdvisoryGRB30 hr
Jan 9, 3:20 PM CSTWinter Storm WatchGRB24 hr
Jan 10, 3:16 PM CSTWinter Weather AdvisoryGRB11 hr
Jan 10, 3:26 PM CSTLakeshore Flood AdvisoryGRB29 hr
Jan 16, 2:28 PM CSTWinter Weather AdvisoryGRB67 hr
Jan 18, 9:57 AM CSTRiver Flood WarningGRB11 hr
Feb 8, 3:14 AM CSTWinter Weather AdvisoryGRB40 hr
Feb 8, 2:34 PM CSTWinter Storm WarningGRB28 hr
Feb 13, 2:30 PM CSTWind Chill AdvisoryGRB20 hr
Feb 16, 2:58 PM CSTWinter Weather AdvisoryGRB41 hr
Feb 20, 3:02 PM CSTRiver Flood WarningGRB43 hr
Feb 22, 1:40 PM CSTRiver Flood WarningGRB29 hr
Mar 13, 8:21 AM CDTRiver Flood WarningGRB21 days
Mar 26, 10:36 AM CDTRiver Flood WarningGRB7 days
Mar 28, 3:45 AM CDTLakeshore Flood AdvisoryGRB24 hr
Mar 28, 11:26 PM CDTSpecial Weather StatementGRB64 min
Apr 7, 2:17 PM CDTSpecial Weather StatementGRB28 min
Apr 7, 2:34 PM CDTSevere Thunderstorm WarningGRB26 min
Apr 7, 2:58 PM CDTSpecial Weather StatementGRB47 min
Apr 8, 12:46 AM CDTDense Fog AdvisoryGRB9 hr
Apr 11, 2:40 PM CDTWinter Storm WarningGRB46 hr
Apr 11, 2:40 PM CDTWinter Weather AdvisoryGRB42 hr
Apr 11, 2:49 PM CDTLakeshore Flood AdvisoryGRB52 hr
Apr 28, 12:52 AM CDTDense Fog AdvisoryGRB10 hr
Apr 28, 4:46 AM CDTLakeshore Flood AdvisoryGRB56 hr
Apr 29, 1:05 AM CDTLakeshore Flood WarningGRB18 hr
May 6, 2:40 PM CDTFrost AdvisoryGRB15 hr
May 7, 9:15 AM CDTFreeze WarningGRB24 hr
May 7, 9:36 AM CDTFreeze WatchGRB18 hr
May 8, 3:31 AM CDTFreeze WarningGRB28 hr
May 10, 2:50 PM CDTFreeze WarningGRB17 hr
May 11, 2:52 PM CDTFreeze WarningGRB17 hr
May 12, 2:36 PM CDTFrost AdvisoryGRB17 hr
May 15, 4:02 AM CDTDense Fog AdvisoryGRB5 hr
May 16, 3:22 AM CDTLakeshore Flood WatchGRB12 hr
May 16, 3:08 PM CDTLakeshore Flood WarningGRB64 hr
May 17, 2:21 AM CDTFlood WatchGRB30 hr
May 17, 8:00 PM CDTWind AdvisoryGRB8 hr
May 18, 9:12 PM CDTRiver Flood WarningGRB24 hr
May 19, 6:54 AM CDTAreal Flood AdvisoryGRB6 hr
May 20, 9:44 AM CDTRiver Flood WarningGRB25 hr
May 25, 10:59 AM CDTMesoscale DiscussionSPC61 min
May 25, 1:09 PM CDTSpecial Weather StatementGRB51 min
May 26, 4:29 PM CDTSpecial Weather StatementGRB91 min
May 26, 5:36 PM CDTSpecial Weather StatementGRB54 min
May 27, 4:12 PM CDTSpecial Weather StatementGRB33 min
May 27, 6:10 PM CDTSpecial Weather StatementGRB50 min
May 27, 7:09 PM CDTSpecial Weather StatementGRB51 min
May 27, 7:52 PM CDTSpecial Weather StatementGRB53 min
May 28, 1:36 PM CDTAreal Flood AdvisoryGRB3 hr
May 30, 1:44 PM CDTFrost AdvisoryGRB18 hr
Jun 1, 2:04 PM CDTSpecial Weather StatementGRB41 min
Jun 1, 2:49 PM CDTSpecial Weather StatementGRB41 min
Jun 9, 3:37 PM CDTWind AdvisoryGRB14 hr
Jun 29, 10:14 AM CDTSpecial Weather StatementGRB91 min
Jun 29, 11:44 AM CDTSpecial Weather StatementGRB91 min
Jul 2, 5:43 PM CDTSpecial Weather StatementGRB17 min
Jul 6, 1:41 PM CDTSpecial Weather StatementGRB49 min
Jul 6, 7:48 PM CDTSpecial Weather StatementGRB27 min
Jul 9, 12:11 PM CDTFlood WatchGRB16 hr
Jul 10, 4:20 AM CDTFlood WatchGRB3 hr
Jul 14, 12:55 PM CDTSpecial Weather StatementGRB50 min
Jul 14, 1:36 PM CDTSpecial Weather StatementGRB39 min
Jul 17, 2:30 PM CDTHeat AdvisoryGRB30 hr
Jul 18, 4:02 AM CDTMesoscale DiscussionSPC88 min
Jul 18, 5:53 AM CDTSevere Thunderstorm WarningGRB52 min
Jul 18, 6:11 AM CDTSevere Thunderstorm WarningGRB64 min
Jul 18, 9:44 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 19, 1:13 AM CDTMesoscale DiscussionSPC92 min
Jul 19, 1:40 AM CDTSevere Thunderstorm WarningGRB80 min
Jul 19, 2:22 AM CDTSevere Thunderstorm WarningGRB38 min
Jul 19, 2:58 AM CDTSpecial Weather StatementGRB47 min
Jul 26, 9:55 AM CDTAreal Flood AdvisoryGRB3 hr
Jul 26, 10:12 AM CDTSpecial Weather StatementGRB78 min
Aug 2, 3:09 PM CDTLakeshore Flood AdvisoryGRB30 hr
Aug 8, 6:49 AM CDTSpecial Weather StatementGRB56 min
Aug 10, 12:44 PM CDTMesoscale DiscussionSPC61 min
Aug 10, 12:58 PM CDTSevere Thunderstorm WatchSPC6 hr
Aug 16, 5:05 PM CDTSpecial Weather StatementGRB40 min
Aug 16, 5:47 PM CDTSpecial Weather StatementGRB28 min
Aug 22, 3:30 PM CDTSpecial Weather StatementGRB60 min
Sep 5, 2:53 PM CDTLakeshore Flood AdvisoryGRB30 hr
Sep 7, 3:08 PM CDTLakeshore Flood AdvisoryGRB48 hr
Sep 10, 2:29 PM CDTFrost AdvisoryGRB18 hr
Sep 17, 11:38 AM CDTFrost AdvisoryGRB20 hr
Sep 18, 1:43 PM CDTFrost AdvisoryGRB18 hr
Sep 26, 3:00 PM CDTSevere Thunderstorm WarningGRB45 min
Sep 26, 3:07 PM CDTMesoscale DiscussionSPC83 min
Sep 26, 3:45 PM CDTSpecial Weather StatementGRB45 min
Sep 26, 4:09 PM CDTSevere Thunderstorm WarningGRB21 min
Sep 26, 4:13 PM CDTSevere Thunderstorm WarningGRB32 min
Oct 1, 3:33 AM CDTFrost AdvisoryGRB29 hr
Oct 2, 2:22 PM CDTFrost AdvisoryGRB18 hr
Oct 4, 2:36 PM CDTFrost AdvisoryGRB17 hr
Oct 11, 3:34 AM CDTLakeshore Flood AdvisoryGRB35 hr
Oct 22, 4:52 AM CDTLakeshore Flood AdvisoryGRB26 hr
Oct 31, 9:00 PM CDTWind AdvisoryGRB22 hr
Nov 10, 3:50 AM CSTWind AdvisoryGRB26 hr
Nov 14, 2:30 PM CSTWind AdvisoryGRB31 hr
Dec 11, 3:42 AM CSTLakeshore Flood AdvisoryGRB34 hr
Dec 27, 3:38 AM CSTWinter Weather AdvisoryGRB19 hr
Dec 28, 2:03 PM CSTWinter Weather AdvisoryGRB43 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 archive20192021

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.