Alert archive / Wisconsin / Florence County
Weather alerts in Florence County, Wisconsin, 2018
82 weather alerts in 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Florence County and its neighbors
Each county as a circle sized by its count in 2018. Tap one for its archive.
- Alerts
- 82
- Warnings
- 8
- Watches
- 12
- Advisories
- 27
- Busiest month
- June13 alerts
- Busiest day
- October 3, 20186 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Florence County, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 2 | 2 | 0% | 0 | ||
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Green Bay, WI: tornado warnings | 9 | 2 | 78% | 4 | 50% | 4 min |
| NWS Green Bay, WI: severe thunderstorm warnings | 73 | 42 | 42% | 130 | 68% | 22 min |
| NWS Green Bay, WI: flash flood warnings | 3 | 2 | 33% | 3 | 67% | 41 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 |
|---|---|---|---|
| Jan 3, 2:37 PM CST | Wind Chill Advisory | GRB | 19 hr |
| Jan 10, 2:43 PM CST | Winter Weather Advisory | GRB | 31 hr |
| Jan 12, 2:25 PM CST | Wind Chill Advisory | GRB | 19 hr |
| Jan 14, 4:24 AM CST | Winter Weather Advisory | GRB | 44 hr |
| Jan 20, 3:11 PM CST | Winter Storm Watch | GRB | 23 hr |
| Jan 21, 2:35 PM CST | Winter Storm Warning | GRB | 33 hr |
| Jan 22, 3:15 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Jan 31, 2:38 PM CST | Wind Chill Advisory | GRB | 21 hr |
| Feb 1, 1:56 PM CST | Wind Chill Advisory | GRB | 20 hr |
| Feb 2, 2:03 PM CST | Winter Weather Advisory | GRB | 44 hr |
| Feb 4, 12:24 PM CST | Wind Chill Advisory | GRB | 22 hr |
| Feb 18, 2:50 PM CST | Winter Weather Advisory | GRB | 47 hr |
| Feb 22, 3:20 AM CST | Winter Weather Advisory | GRB | 30 hr |
| Feb 24, 4:07 AM CST | Winter Weather Advisory | GRB | 23 hr |
| Mar 4, 2:52 PM CST | Winter Weather Advisory | GRB | 54 hr |
| Mar 29, 2:32 PM CDT | Winter Storm Watch | GRB | 14 hr |
| Mar 30, 4:20 AM CDT | Winter Storm Warning | GRB | 33 hr |
| Mar 31, 5:25 AM CDT | Mesoscale Discussion | SPC | 6 hr |
| Apr 1, 2:58 PM CDT | Winter Storm Watch | GRB | 24 hr |
| Apr 2, 2:48 PM CDT | Winter Storm Warning | GRB | 12 hr |
| Apr 3, 3:11 AM CDT | Winter Storm Warning | GRB | 28 hr |
| Apr 12, 3:15 PM CDT | Winter Storm Watch | GRB | 37 hr |
| Apr 14, 4:25 AM CDT | Winter Storm Warning | GRB | 37 hr |
| Apr 15, 5:53 PM CDT | Winter Weather Advisory | GRB | 18 hr |
| Apr 27, 8:15 AM CDT | River Flood Advisory | GRB | 36 hr |
| Apr 27, 8:15 AM CDT | River Flood Advisory | GRB | 36 hr |
| Apr 27, 8:24 AM CDT | River Flood Advisory | GRB | 36 hr |
| Apr 28, 9:06 PM CDT | River Flood Advisory | GRB | 39 hr |
| Apr 28, 9:12 PM CDT | River Flood Advisory | GRB | 4 days |
| Apr 28, 9:12 PM CDT | River Flood Advisory | GRB | 4 days |
| May 16, 6:32 PM CDT | Special Weather Statement | GRB | 43 min |
| May 24, 8:35 PM CDT | Special Weather Statement | GRB | 40 min |
| May 25, 6:44 PM CDT | Severe Thunderstorm Warning | GRB | 61 min |
| May 26, 11:43 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| May 28, 12:57 AM CDT | Special Weather Statement | GRB | 93 min |
| May 28, 2:32 AM CDT | Special Weather Statement | GRB | 118 min |
| Jun 12, 6:56 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 15, 4:33 PM CDT | Special Weather Statement | GRB | 57 min |
| Jun 16, 3:30 AM CDT | Flash Flood Watch | GRB | 53 hr |
| Jun 17, 12:12 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Jun 17, 3:08 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Jun 17, 3:46 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 17, 6:29 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 17, 6:34 PM CDT | Severe Thunderstorm Warning | GRB | 34 min |
| Jun 28, 3:14 PM CDT | Heat Advisory | GRB | 52 hr |
| Jun 30, 3:21 AM CDT | Mesoscale Discussion | SPC | 114 min |
| Jun 30, 4:23 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Jun 30, 4:41 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 30, 6:32 PM CDT | Special Weather Statement | GRB | 43 min |
| Jun 30, 8:05 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jun 30, 8:45 PM CDT | Special Weather Statement | GRB | 15 min |
| Jul 1, 11:37 AM CDT | Mesoscale Discussion | SPC | 83 min |
| Jul 1, 12:04 PM CDT | Tornado Watch | SPC | 6 hr |
| Jul 1, 1:37 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Jul 12, 5:51 AM CDT | Special Weather Statement | GRB | 84 min |
| Jul 12, 7:11 AM CDT | Special Weather Statement | GRB | 94 min |
| Jul 12, 10:28 PM CDT | Special Weather Statement | GRB | 62 min |
| Jul 12, 11:13 PM CDT | Special Weather Statement | GRB | 62 min |
| Aug 1, 11:33 AM CDT | Special Weather Statement | GRB | 42 min |
| Aug 5, 3:57 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Aug 5, 4:19 PM CDT | Special Weather Statement | GRB | 41 min |
| Aug 27, 5:27 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 27, 6:01 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 4, 8:41 AM CDT | Flash Flood Watch | GRB | 23 hr |
| Sep 4, 10:43 PM CDT | Special Weather Statement | GRB | 32 min |
| Sep 5, 12:20 AM CDT | Areal Flood Advisory | GRB | 6 hr |
| Sep 21, 2:34 PM CDT | Frost Advisory | GRB | 17 hr |
| Sep 28, 2:55 AM CDT | Freeze Warning | GRB | 30 hr |
| Oct 3, 2:31 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Oct 3, 3:31 PM CDT | Tornado Watch | SPC | 7 hr |
| Oct 3, 5:03 PM CDT | Special Weather Statement | GRB | 27 min |
| Oct 3, 5:15 PM CDT | Special Weather Statement | GRB | 30 min |
| Oct 3, 5:52 PM CDT | Special Weather Statement | GRB | 23 min |
| Oct 3, 6:51 PM CDT | Special Weather Statement | GRB | 69 min |
| Oct 3, 8:44 PM CDT | Special Weather Statement | GRB | 61 min |
| Oct 8, 3:04 PM CDT | Flood Watch | GRB | 48 hr |
| Nov 3, 2:32 PM CDT | Winter Weather Advisory | GRB | 28 hr |
| Nov 4, 11:21 AM CST | Special Weather Statement | GRB | 84 min |
| Nov 8, 2:51 PM CST | Winter Weather Advisory | GRB | 33 hr |
| Dec 1, 3:41 AM CST | Winter Weather Advisory | GRB | 39 hr |
| Dec 12, 9:16 PM CST | Dense Fog Advisory | GRB | 13 hr |
| Dec 26, 4:16 AM CST | Winter Weather Advisory | GRB | 30 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 | 3 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 15 |
| Special Weather Statement | 20 |
| Flooding | |
| Flash Flood Watch | 2 |
| Flood Watch | 1 |
| Areal Flood Advisory | 1 |
| River Flood Advisory | 6 |
| Winter | |
| Winter Storm Warning | 5 |
| Winter Storm Watch | 4 |
| Winter Weather Advisory | 12 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 1 |
| Frost Advisory | 1 |
| Wind Chill Advisory | 5 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20172019
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.