Alert archive / Wisconsin / Manitowoc County
Weather alerts in Manitowoc County, Wisconsin, 2015
73 weather alerts in 2015, 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 2015. Tap one for its archive.
- Alerts
- 73
- Warnings
- 11
- Watches
- 9
- Advisories
- 27
- Busiest month
- August17 alerts
- Busiest day
- August 2, 20155 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, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 7 | 3 | 57% | 1 | 100% | 53 min |
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Green Bay, WI: tornado warnings | 5 | 2 | 60% | 10 | 50% | 6 min |
| NWS Green Bay, WI: severe thunderstorm warnings | 66 | 33 | 50% | 101 | 80% | 25 min |
| NWS Green Bay, WI: flash flood warnings | 3 | 0 | 100% | 1 | 0% |
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 |
|---|---|---|---|
| Jan 3, 2:55 PM CST | Winter Weather Advisory | GRB | 24 hr |
| Jan 4, 3:52 AM CST | Wind Chill Advisory | GRB | 56 hr |
| Jan 6, 11:49 AM CST | Wind Chill Advisory | GRB | 48 hr |
| Jan 7, 2:36 PM CST | Winter Weather Advisory | GRB | 39 hr |
| Jan 8, 2:41 PM CST | Wind Chill Advisory | GRB | 43 hr |
| Jan 28, 9:19 PM CST | Freezing Rain Advisory | GRB | 10 hr |
| Feb 1, 4:34 AM CST | Winter Storm Warning | GRB | 17 hr |
| Feb 13, 2:47 PM CST | Wind Chill Advisory | GRB | 43 hr |
| Feb 18, 11:59 AM CST | Wind Chill Advisory | GRB | 24 hr |
| Feb 22, 3:29 AM CST | Wind Chill Advisory | GRB | 31 hr |
| Mar 2, 4:32 AM CST | Winter Weather Advisory | GRB | 34 hr |
| Mar 24, 4:22 AM CDT | Winter Weather Advisory | GRB | 30 hr |
| May 12, 2:23 PM CDT | Frost Advisory | GRB | 17 hr |
| May 15, 11:00 PM CDT | Dense Fog Advisory | GRB | 4 hr |
| May 16, 8:16 PM CDT | Dense Fog Advisory | GRB | 14 hr |
| May 19, 2:48 AM CDT | Frost Advisory | GRB | 29 hr |
| May 24, 3:31 PM CDT | Beach Hazards Statement | GRB | 29 hr |
| May 26, 11:22 AM CDT | Mesoscale Discussion | SPC | 113 min |
| May 26, 6:55 PM CDT | Special Weather Statement | GRB | 50 min |
| Jun 8, 3:02 PM CDT | Special Weather Statement | GRB | 43 min |
| Jun 10, 3:02 PM CDT | Flash Flood Watch | GRB | 22 hr |
| Jun 11, 1:14 PM CDT | Flood Watch | GRB | 7 hr |
| Jun 14, 3:58 AM CDT | Dense Fog Advisory | GRB | 6 hr |
| Jun 14, 9:25 PM CDT | Dense Fog Advisory | GRB | 12 hr |
| Jun 15, 4:10 PM CDT | Areal Flood Advisory | GRB | 3 hr |
| Jun 21, 8:59 PM CDT | Beach Hazards Statement | GRB | 25 hr |
| Jun 22, 11:17 AM CDT | Special Weather Statement | GRB | 28 min |
| Jul 6, 3:27 AM CDT | Beach Hazards Statement | GRB | 19 hr |
| Jul 13, 3:11 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 18, 3:56 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 18, 5:24 AM CDT | Mesoscale Discussion | SPC | 96 min |
| Jul 18, 5:47 AM CDT | Severe Thunderstorm Warning | GRB | 58 min |
| Jul 18, 10:01 AM CDT | Beach Hazards Statement | GRB | 10 hr |
| Jul 20, 3:17 PM CDT | Special Weather Statement | GRB | 58 min |
| Jul 20, 3:48 PM CDT | Severe Thunderstorm Warning | GRB | 27 min |
| Aug 2, 7:51 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 2, 2:00 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 2, 2:59 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 2, 4:18 PM CDT | Severe Thunderstorm Warning | GRB | 42 min |
| Aug 2, 5:19 PM CDT | Severe Thunderstorm Warning | GRB | 26 min |
| Aug 10, 12:41 PM CDT | Special Weather Statement | GRB | 49 min |
| Aug 13, 2:24 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 14, 3:09 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Aug 14, 4:51 PM CDT | Severe Thunderstorm Warning | GRB | 24 min |
| Aug 14, 5:12 PM CDT | Severe Thunderstorm Warning | GRB | 48 min |
| Aug 14, 5:32 PM CDT | Severe Thunderstorm Warning | GRB | 31 min |
| Aug 16, 9:03 AM CDT | Beach Hazards Statement | GRB | 11 hr |
| Aug 17, 2:51 PM CDT | Special Weather Statement | GRB | 54 min |
| Aug 18, 4:11 PM CDT | Beach Hazards Statement | GRB | 28 hr |
| Aug 18, 10:38 PM CDT | Special Weather Statement | GRB | 67 min |
| Aug 22, 3:53 AM CDT | Beach Hazards Statement | GRB | 16 hr |
| Aug 30, 3:33 AM CDT | Dense Fog Advisory | GRB | 5 hr |
| Sep 8, 4:00 AM CDT | Flash Flood Watch | GRB | 8 hr |
| Sep 8, 8:40 AM CDT | Areal Flood Advisory | GRB | 20 min |
| Sep 8, 8:56 AM CDT | Flash Flood Warning | GRB | 3 hr |
| Sep 17, 4:05 PM CDT | Special Weather Statement | GRB | 25 min |
| Sep 26, 9:17 PM CDT | Dense Fog Advisory | GRB | 12 hr |
| Oct 15, 2:51 PM CDT | Freeze Watch | GRB | 13 hr |
| Oct 15, 3:54 PM CDT | Special Weather Statement | GRB | 66 min |
| Oct 15, 4:37 PM CDT | Special Weather Statement | GRB | 38 min |
| Oct 16, 3:36 AM CDT | Freeze Warning | GRB | 29 hr |
| Nov 11, 8:02 PM CST | Special Weather Statement | GRB | 88 min |
| Nov 12, 3:23 AM CST | Wind Advisory | GRB | 15 hr |
| Nov 18, 7:43 AM CST | Wind Advisory | GRB | 4 hr |
| Nov 19, 8:43 AM CST | Wind Advisory | GRB | 10 hr |
| Nov 20, 2:48 PM CST | Winter Weather Advisory | GRB | 7 hr |
| Nov 30, 5:14 AM CST | Winter Weather Advisory | GRB | 4 hr |
| Dec 13, 3:35 AM CST | Flood Watch | GRB | 35 hr |
| Dec 23, 3:56 AM CST | Wind Advisory | GRB | 29 hr |
| Dec 27, 3:31 AM CST | Winter Storm Watch | GRB | 12 hr |
| Dec 27, 3:10 PM CST | Winter Storm Warning | GRB | 39 hr |
| Dec 28, 12:13 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Dec 28, 6:00 PM CST | Mesoscale Discussion | SPC | 5 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 | 7 |
| Severe Thunderstorm Watch | 3 |
| Mesoscale Discussion | 8 |
| Special Weather Statement | 11 |
| Flooding | |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 2 |
| Flood Watch | 2 |
| Areal Flood Advisory | 2 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 1 |
| Freezing Rain Advisory | 1 |
| Winter Weather Advisory | 6 |
| Cold | |
| Freeze Warning | 1 |
| Freeze Watch | 1 |
| Frost Advisory | 2 |
| Wind Chill Advisory | 6 |
| Wind and dust | |
| Wind Advisory | 4 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
| Coast and beach | |
| Beach Hazards Statement | 7 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20142016
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.