Alert archive / Wisconsin / Manitowoc County
Weather alerts in Manitowoc County, Wisconsin, 2017
109 weather alerts in 2017, 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 2017. Tap one for its archive.
- Alerts
- 109
- Warnings
- 15
- Watches
- 8
- Advisories
- 34
- Busiest month
- June27 alerts
- Busiest day
- July 7, 20176 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 1 tornado warnings covering Manitowoc County in 2017 had a tornado report inside them.
Manitowoc County, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 10 | 8 | 20% | 14 | 79% | 26 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Green Bay, WI: tornado warnings | 6 | 2 | 67% | 15 | 40% | 6 min |
| NWS Green Bay, WI: severe thunderstorm warnings | 140 | 60 | 57% | 178 | 80% | 26 min |
| NWS Green Bay, WI: flash flood warnings | 1 | 0 | 100% | 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 4, 2:44 PM CST | Wind Chill Advisory | GRB | 45 hr |
| Jan 5, 11:59 AM CST | Wind Chill Advisory | GRB | 22 hr |
| Jan 9, 3:44 AM CST | Winter Weather Advisory | GRB | 42 hr |
| Jan 10, 11:40 AM CST | Wind Advisory | GRB | 12 hr |
| Jan 11, 4:44 PM CST | Winter Weather Advisory | GRB | 4 hr |
| Jan 15, 2:56 PM CST | Winter Storm Watch | GRB | 13 hr |
| Jan 16, 4:25 AM CST | Winter Weather Advisory | GRB | 32 hr |
| Jan 18, 2:10 AM CST | Dense Fog Advisory | GRB | 4 hr |
| Jan 19, 7:13 PM CST | Dense Fog Advisory | GRB | 17 hr |
| Jan 20, 3:33 PM CST | Dense Fog Advisory | GRB | 47 hr |
| Jan 24, 3:54 AM CST | Winter Weather Advisory | GRB | 44 hr |
| Jan 29, 2:33 PM CST | Winter Weather Advisory | GRB | 37 hr |
| Feb 6, 2:50 PM CST | Freezing Rain Advisory | GRB | 27 hr |
| Feb 23, 4:36 AM CST | Winter Weather Advisory | GRB | 49 hr |
| Feb 23, 11:54 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Feb 28, 2:39 PM CST | Winter Weather Advisory | GRB | 27 hr |
| Mar 6, 3:28 PM CST | Wind Advisory | GRB | 52 hr |
| Mar 6, 5:55 PM CST | Dense Fog Advisory | GRB | 8 hr |
| Mar 7, 2:11 AM CST | High Wind Warning | GRB | 43 min |
| Mar 11, 2:37 PM CST | Winter Weather Advisory | GRB | 52 hr |
| Mar 16, 9:46 PM CDT | Winter Weather Advisory | GRB | 11 hr |
| Mar 19, 8:51 PM CDT | Special Weather Statement | GRB | 69 min |
| Apr 15, 11:01 PM CDT | Special Weather Statement | GRB | 44 min |
| Apr 15, 11:19 PM CDT | Severe Thunderstorm Warning | GRB | 26 min |
| May 6, 3:35 AM CDT | Frost Advisory | GRB | 28 hr |
| May 7, 3:36 AM CDT | Freeze Warning | GRB | 28 hr |
| May 15, 10:06 PM CDT | Special Weather Statement | GRB | 54 min |
| May 15, 11:18 PM CDT | Special Weather Statement | GRB | 27 min |
| May 17, 3:13 PM CDT | Tornado Watch | SPC | 9 hr |
| May 17, 10:14 PM CDT | Severe Thunderstorm Warning | GRB | 61 min |
| Jun 3, 6:05 AM CDT | Special Weather Statement | GRB | 55 min |
| Jun 3, 5:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jun 3, 8:36 PM CDT | Special Weather Statement | GRB | 39 min |
| Jun 9, 4:25 PM CDT | Beach Hazards Statement | GRB | 30 hr |
| Jun 11, 10:39 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 11, 12:00 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 12, 4:37 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 12, 6:38 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 12, 7:44 PM CDT | Severe Thunderstorm Warning | GRB | 46 min |
| Jun 12, 8:13 PM CDT | Special Weather Statement | GRB | 47 min |
| Jun 12, 8:28 PM CDT | Severe Thunderstorm Warning | GRB | 36 min |
| Jun 14, 12:40 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 14, 3:25 PM CDT | Severe Thunderstorm Warning | GRB | 50 min |
| Jun 14, 3:34 PM CDT | Areal Flood Advisory | GRB | 3 hr |
| Jun 14, 4:00 PM CDT | Severe Thunderstorm Warning | GRB | 60 min |
| Jun 14, 4:59 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jun 16, 2:25 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 17, 6:43 PM CDT | Special Weather Statement | GRB | 32 min |
| Jun 19, 2:27 PM CDT | Special Weather Statement | GRB | 48 min |
| Jun 19, 3:16 PM CDT | Special Weather Statement | GRB | 29 min |
| Jun 19, 4:21 PM CDT | Special Weather Statement | GRB | 54 min |
| Jun 19, 5:08 PM CDT | Special Weather Statement | GRB | 37 min |
| Jun 22, 1:05 AM CDT | Special Weather Statement | GRB | 55 min |
| Jun 22, 4:41 AM CDT | Special Weather Statement | GRB | 34 min |
| Jun 22, 9:14 PM CDT | Areal Flood Advisory | GRB | 2 hr |
| Jun 22, 9:21 PM CDT | Special Weather Statement | GRB | 24 min |
| Jun 27, 5:06 PM CDT | Beach Hazards Statement | GRB | 47 hr |
| Jul 1, 7:00 PM CDT | Special Weather Statement | GRB | 30 min |
| Jul 6, 5:04 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Jul 6, 5:54 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 6, 9:43 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jul 6, 11:52 PM CDT | Special Weather Statement | GRB | 38 min |
| Jul 7, 4:44 PM CDT | Severe Thunderstorm Warning | GRB | 46 min |
| Jul 7, 5:22 PM CDT | Severe Thunderstorm Warning | GRB | 34 min |
| Jul 7, 5:29 PM CDT | Tornado Warning | GRB | 31 min |
| Jul 7, 6:08 PM CDT | Special Weather Statement | GRB | 82 min |
| Jul 12, 6:33 AM CDT | Special Weather Statement | GRB | 87 min |
| Jul 12, 9:36 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jul 15, 4:01 PM CDT | Beach Hazards Statement | GRB | 28 hr |
| Jul 15, 5:53 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 15, 8:34 PM CDT | Severe Thunderstorm Warning | GRB | 56 min |
| Jul 18, 7:32 PM CDT | Special Weather Statement | GRB | 58 min |
| Jul 19, 8:24 PM CDT | Wind Advisory | GRB | 2 hr |
| Jul 23, 12:01 AM CDT | Special Weather Statement | GRB | 59 min |
| Jul 23, 1:48 AM CDT | Special Weather Statement | GRB | 42 min |
| Jul 23, 1:28 PM CDT | Special Weather Statement | GRB | 47 min |
| Jul 24, 3:39 AM CDT | Beach Hazards Statement | GRB | 15 hr |
| Jul 26, 3:48 AM CDT | Beach Hazards Statement | GRB | 15 hr |
| Jul 26, 9:33 AM CDT | Special Weather Statement | GRB | 42 min |
| Jul 28, 3:19 AM CDT | Beach Hazards Statement | GRB | 19 hr |
| Aug 3, 10:02 AM CDT | Special Weather Statement | GRB | 58 min |
| Aug 3, 10:58 AM CDT | Special Weather Statement | GRB | 62 min |
| Aug 3, 12:13 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 6, 4:20 PM CDT | Special Weather Statement | GRB | 40 min |
| Aug 10, 4:19 AM CDT | Beach Hazards Statement | GRB | 18 hr |
| Aug 10, 2:47 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 10, 2:52 PM CDT | Special Weather Statement | GRB | 53 min |
| Aug 10, 5:31 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Aug 17, 3:17 AM CDT | Beach Hazards Statement | GRB | 18 hr |
| Aug 26, 2:59 PM CDT | Beach Hazards Statement | GRB | 37 hr |
| Aug 30, 10:48 AM CDT | Beach Hazards Statement | GRB | 35 hr |
| Aug 30, 3:11 PM CDT | Severe Thunderstorm Warning | GRB | 49 min |
| Sep 15, 4:35 AM CDT | Beach Hazards Statement | GRB | 42 hr |
| Sep 20, 4:09 AM CDT | Beach Hazards Statement | GRB | 18 hr |
| Sep 20, 8:01 PM CDT | Areal Flood Advisory | GRB | 3 hr |
| Sep 20, 9:03 PM CDT | Areal Flood Advisory | GRB | 3 hr |
| Sep 21, 8:48 PM CDT | Dense Fog Advisory | GRB | 14 hr |
| Oct 22, 11:12 PM CDT | Dense Fog Advisory | GRB | 11 hr |
| Oct 23, 2:33 PM CDT | Wind Advisory | GRB | 24 hr |
| Oct 25, 3:42 AM CDT | Frost Advisory | GRB | 28 hr |
| Oct 27, 2:59 PM CDT | Freeze Warning | GRB | 42 hr |
| Nov 10, 11:48 AM CST | Special Weather Statement | GRB | 57 min |
| Nov 11, 6:20 PM CST | Winter Weather Advisory | GRB | 3 hr |
| Dec 4, 3:53 AM CST | Wind Advisory | GRB | 38 hr |
| Dec 8, 10:51 AM CST | Winter Weather Advisory | GRB | 17 hr |
| Dec 12, 1:45 PM CST | Winter Weather Advisory | GRB | 31 hr |
| Dec 13, 10:45 AM CST | Winter Storm Warning | GRB | 10 hr |
| Dec 24, 2:09 PM CST | Wind Chill Advisory | GRB | 70 hr |
| Dec 29, 1:26 PM CST | Wind Chill Advisory | GRB | 4 days |
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 | 10 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 6 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 11 |
| Special Weather Statement | 29 |
| Flooding | |
| Areal Flood Advisory | 4 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Freezing Rain Advisory | 1 |
| Winter Weather Advisory | 12 |
| Cold | |
| Freeze Warning | 2 |
| Frost Advisory | 2 |
| Wind Chill Advisory | 4 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 5 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
| Coast and beach | |
| Beach Hazards Statement | 12 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20162018
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.