Alert archive / Wisconsin / Florence County
Weather alerts in Florence County, Wisconsin, 2015
65 weather alerts in 2015, 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 2015. Tap one for its archive.
- Alerts
- 65
- Warnings
- 14
- Watches
- 4
- Advisories
- 24
- Busiest month
- August13 alerts
- Busiest day
- August 2, 20159 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, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 3 | 2 | 33% | 3 | 100% | 13 min |
| Flash flood warnings | 0 | 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 | Wind Chill Watch | GRB | 13 hr |
| Jan 3, 2:55 PM CST | Winter Weather Advisory | GRB | 24 hr |
| Jan 4, 3:52 AM CST | Wind Chill Warning | GRB | 32 hr |
| Jan 4, 3:52 AM CST | Wind Chill Advisory | GRB | 56 hr |
| Jan 6, 11:49 AM CST | Wind Chill Warning | GRB | 23 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 10, 3:31 AM CST | Winter Weather Advisory | GRB | 24 hr |
| Feb 11, 8:39 PM CST | Wind Chill Advisory | GRB | 10 hr |
| Feb 13, 2:47 PM CST | Wind Chill Advisory | GRB | 43 hr |
| Feb 17, 4:31 AM CST | Wind Chill Advisory | GRB | 55 hr |
| Feb 21, 3:53 AM CST | Wind Chill Advisory | GRB | 54 hr |
| Feb 25, 2:14 PM CST | Wind Chill Advisory | GRB | 20 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 |
| Apr 5, 3:27 PM CDT | Winter Weather Advisory | GRB | 19 hr |
| Apr 9, 2:51 PM CDT | Winter Weather Advisory | GRB | 16 hr |
| Apr 9, 9:53 PM CDT | Winter Storm Warning | GRB | 9 hr |
| May 19, 2:48 AM CDT | Freeze Warning | GRB | 29 hr |
| May 21, 3:02 PM CDT | Freeze Warning | GRB | 17 hr |
| May 22, 2:55 PM CDT | Frost Advisory | GRB | 16 hr |
| May 26, 11:22 AM CDT | Mesoscale Discussion | SPC | 113 min |
| May 27, 6:18 PM CDT | Special Weather Statement | GRB | 57 min |
| May 28, 6:21 PM CDT | Special Weather Statement | GRB | 39 min |
| May 30, 4:10 AM CDT | Freeze Warning | GRB | 28 hr |
| May 31, 1:59 PM CDT | Freeze Warning | GRB | 17 hr |
| Jun 1, 2:03 PM CDT | Frost Advisory | GRB | 17 hr |
| Jun 8, 3:02 PM CDT | Special Weather Statement | GRB | 43 min |
| Jun 10, 1:40 AM CDT | Special Weather Statement | GRB | 35 min |
| Jun 22, 9:57 AM CDT | Wind Advisory | GRB | 5 hr |
| Jun 22, 4:48 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 22, 5:27 PM CDT | Special Weather Statement | GRB | 93 min |
| Jun 22, 7:03 PM CDT | Special Weather Statement | GRB | 42 min |
| Jun 29, 4:37 PM CDT | Special Weather Statement | GRB | 38 min |
| Jul 6, 9:31 AM CDT | Special Weather Statement | GRB | 59 min |
| Jul 25, 12:05 AM CDT | Special Weather Statement | GRB | 85 min |
| Aug 2, 4:21 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 2, 6:22 AM CDT | Special Weather Statement | GRB | 38 min |
| Aug 2, 6:31 AM CDT | Special Weather Statement | MQT | 44 min |
| Aug 2, 6:46 AM CDT | Severe Thunderstorm Warning | GRB | 29 min |
| Aug 2, 7:51 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 2, 10:57 AM CDT | Special Weather Statement | GRB | 48 min |
| Aug 2, 12:02 PM CDT | Severe Thunderstorm Warning | GRB | 28 min |
| Aug 2, 12:09 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 2, 12:38 PM CDT | Special Weather Statement | GRB | 37 min |
| Aug 9, 4:18 PM CDT | Special Weather Statement | GRB | 27 min |
| Aug 14, 12:02 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Aug 17, 1:54 AM CDT | Special Weather Statement | GRB | 51 min |
| Aug 17, 9:31 AM CDT | Special Weather Statement | GRB | 29 min |
| Sep 2, 8:58 AM CDT | Special Weather Statement | GRB | 47 min |
| Sep 2, 9:12 AM CDT | Severe Thunderstorm Warning | GRB | 33 min |
| Sep 6, 11:50 PM CDT | Special Weather Statement | GRB | 55 min |
| Sep 11, 2:34 PM CDT | Frost Advisory | GRB | 17 hr |
| Sep 12, 1:53 PM CDT | Frost Advisory | GRB | 18 hr |
| Sep 28, 2:18 PM CDT | Freeze Watch | GRB | 20 hr |
| Sep 29, 10:11 AM CDT | Freeze Warning | GRB | 22 hr |
| Sep 30, 2:48 PM CDT | Freeze Warning | GRB | 17 hr |
| Oct 1, 2:46 PM CDT | Freeze Warning | GRB | 17 hr |
| Oct 2, 3:01 PM CDT | Frost Advisory | GRB | 17 hr |
| Oct 3, 2:52 PM CDT | Frost Advisory | GRB | 17 hr |
| Nov 26, 4:24 AM CST | Winter Weather Advisory | GRB | 22 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 |
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 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.