Alert archive / Wisconsin / Manitowoc County
Weather alerts in Manitowoc County, Wisconsin, 2023
72 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Manitowoc County and its neighbors
Each county as a circle sized by its count in 2023. Tap one for its archive.
- Alerts
- 72
- Warnings
- 6
- Watches
- 4
- Advisories
- 24
- Busiest month
- August17 alerts
- Busiest day
- August 3, 20236 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Manitowoc County, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 2 | 1 | 50% | 8 | 13% | 8 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Green Bay, WI: severe thunderstorm warnings | 52 | 29 | 44% | 90 | 63% | 20 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Dec 31, 10:49 PM CST | Winter Weather Advisory | GRB | 5 hr |
| Jan 2, 3:38 AM CST | Winter Weather Advisory | GRB | 62 hr |
| Jan 11, 5:07 AM CST | Winter Weather Advisory | GRB | 6 hr |
| Jan 17, 1:55 PM CST | Winter Storm Watch | GRB | 24 hr |
| Jan 18, 1:52 PM CST | Winter Weather Advisory | GRB | 21 hr |
| Jan 28, 4:01 AM CST | Winter Weather Advisory | GRB | 26 hr |
| Jan 30, 1:59 PM CST | Wind Chill Advisory | GRB | 20 hr |
| Feb 2, 3:25 AM CST | Wind Chill Advisory | GRB | 32 hr |
| Feb 8, 3:11 AM CST | Winter Weather Advisory | GRB | 39 hr |
| Feb 16, 2:26 AM CST | Winter Weather Advisory | GRB | 19 hr |
| Feb 20, 1:46 PM CST | Winter Storm Watch | GRB | 24 hr |
| Feb 20, 1:46 PM CST | Winter Weather Advisory | GRB | 43 hr |
| Feb 21, 2:09 PM CST | Winter Storm Warning | GRB | 48 hr |
| Feb 22, 3:27 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Feb 26, 1:36 PM CST | Winter Weather Advisory | GRB | 28 hr |
| Mar 5, 4:12 AM CST | Winter Weather Advisory | GRB | 38 hr |
| Mar 8, 2:03 PM CST | Winter Weather Advisory | GRB | 46 hr |
| Mar 9, 3:23 AM CST | Winter Storm Warning | GRB | 33 hr |
| Mar 11, 3:57 AM CST | Winter Weather Advisory | GRB | 52 hr |
| Mar 12, 3:38 AM CDT | Winter Storm Warning | GRB | 29 hr |
| Mar 24, 3:01 AM CDT | Winter Weather Advisory | GRB | 29 hr |
| Mar 25, 3:47 AM CDT | Mesoscale Discussion | SPC | 4 hr |
| Mar 25, 7:45 AM CDT | Winter Storm Warning | GRB | 8 hr |
| Mar 25, 8:54 AM CDT | Mesoscale Discussion | SPC | 4 hr |
| Apr 4, 9:15 PM CDT | Special Weather Statement | GRB | 45 min |
| Apr 4, 10:06 PM CDT | Special Weather Statement | GRB | 39 min |
| Apr 4, 10:52 PM CDT | Special Weather Statement | GRB | 83 min |
| Apr 5, 12:17 AM CDT | Special Weather Statement | GRB | 88 min |
| Apr 20, 4:34 AM CDT | Special Weather Statement | GRB | 41 min |
| Apr 20, 5:18 AM CDT | Special Weather Statement | GRB | 87 min |
| Apr 20, 7:11 PM CDT | Special Weather Statement | GRB | 64 min |
| Apr 30, 2:31 PM CDT | Winter Weather Advisory | GRB | 46 hr |
| May 8, 8:19 PM CDT | Dense Fog Advisory | GRB | 13 hr |
| Jun 10, 3:56 PM CDT | Beach Hazards Statement | GRB | 27 hr |
| Jul 5, 2:29 PM CDT | Special Weather Statement | GRB | 46 min |
| Jul 14, 10:09 PM CDT | Special Weather Statement | GRB | 51 min |
| Jul 16, 8:10 PM CDT | Special Weather Statement | GRB | 50 min |
| Jul 16, 8:45 PM CDT | Special Weather Statement | GRB | 60 min |
| Jul 22, 1:18 PM CDT | Special Weather Statement | GRB | 42 min |
| Jul 22, 1:56 PM CDT | Special Weather Statement | GRB | 34 min |
| Jul 26, 6:40 AM CDT | Special Weather Statement | GRB | 80 min |
| Jul 27, 4:51 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 27, 11:30 PM CDT | Special Weather Statement | GRB | 60 min |
| Aug 2, 7:43 PM CDT | Special Weather Statement | GRB | 47 min |
| Aug 2, 8:30 PM CDT | Special Weather Statement | GRB | 60 min |
| Aug 3, 3:27 PM CDT | Special Weather Statement | GRB | 48 min |
| Aug 3, 5:53 PM CDT | Special Weather Statement | GRB | 37 min |
| Aug 3, 6:13 PM CDT | Severe Thunderstorm Warning | GRB | 17 min |
| Aug 3, 6:28 PM CDT | Severe Thunderstorm Warning | GRB | 32 min |
| Aug 9, 4:56 PM CDT | Special Weather Statement | GRB | 34 min |
| Aug 9, 8:19 PM CDT | Special Weather Statement | GRB | 41 min |
| Aug 11, 7:08 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 13, 4:42 PM CDT | Beach Hazards Statement | GRB | 35 hr |
| Aug 16, 3:48 AM CDT | Beach Hazards Statement | GRB | 32 hr |
| Aug 18, 2:30 PM CDT | Beach Hazards Statement | GRB | 34 hr |
| Aug 22, 2:42 AM CDT | Heat Advisory | GRB | 40 hr |
| Aug 22, 3:14 PM CDT | Beach Hazards Statement | GRB | 24 hr |
| Aug 25, 2:51 PM CDT | Beach Hazards Statement | GRB | 31 hr |
| Aug 29, 3:42 AM CDT | Beach Hazards Statement | GRB | 27 hr |
| Aug 31, 2:14 PM CDT | Beach Hazards Statement | GRB | 38 hr |
| Sep 3, 4:02 AM CDT | Beach Hazards Statement | GRB | 21 hr |
| Sep 4, 2:06 PM CDT | Beach Hazards Statement | GRB | 37 hr |
| Sep 15, 3:29 PM CDT | Beach Hazards Statement | GRB | 10 hr |
| Sep 19, 3:00 PM CDT | Beach Hazards Statement | GRB | 21 hr |
| Sep 26, 3:31 AM CDT | Beach Hazards Statement | GRB | 39 hr |
| Oct 8, 1:47 PM CDT | Frost Advisory | GRB | 19 hr |
| Oct 21, 2:44 PM CDT | Frost Advisory | GRB | 18 hr |
| Oct 24, 7:31 AM CDT | Special Weather Statement | GRB | 59 min |
| Dec 3, 2:26 AM CST | Winter Weather Advisory | GRB | 14 hr |
| Dec 22, 2:15 PM CST | Dense Fog Advisory | GRB | 23 hr |
| Dec 23, 2:47 PM CST | Dense Fog Advisory | GRB | 20 hr |
| Dec 30, 5:52 PM CST | Winter Weather Advisory | GRB | 18 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 2 |
| Severe Thunderstorm Watch | 2 |
| Mesoscale Discussion | 3 |
| Special Weather Statement | 22 |
| Winter | |
| Winter Storm Warning | 4 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 16 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Frost Advisory | 2 |
| Wind Chill Advisory | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
| Coast and beach | |
| Beach Hazards Statement | 13 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20222024
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.