Alert archive / Wisconsin / Florence County
Weather alerts in Florence County, Wisconsin, 2019
116 weather alerts in 2019, 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 2019. Tap one for its archive.
- Alerts
- 116
- Warnings
- 22
- Watches
- 14
- Advisories
- 42
- Busiest month
- February21 alerts
- Busiest day
- July 12, 20195 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, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 1 | 1 | 0% | 2 | 100% | 34 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Green Bay, WI: tornado warnings | 6 | 3 | 50% | 11 | 45% | 15 min |
| NWS Green Bay, WI: severe thunderstorm warnings | 71 | 42 | 41% | 166 | 81% | 29 min |
| NWS Green Bay, WI: flash flood warnings | 4 | 1 | 75% | 7 | 86% | 100 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 6, 2:43 AM CST | Winter Weather Advisory | GRB | 32 hr |
| Jan 6, 2:52 PM CST | Winter Storm Warning | GRB | 21 hr |
| Jan 12, 8:15 AM CST | Winter Weather Advisory | GRB | 6 hr |
| Jan 14, 12:30 PM CST | Winter Weather Advisory | GRB | 16 hr |
| Jan 15, 4:06 PM CST | Winter Weather Advisory | GRB | 7 hr |
| Jan 19, 3:13 PM CST | Wind Chill Advisory | GRB | 19 hr |
| Jan 21, 3:17 PM CST | Winter Weather Advisory | GRB | 48 hr |
| Jan 24, 3:55 AM CST | Wind Chill Advisory | GRB | 32 hr |
| Jan 25, 1:44 PM CST | Wind Chill Advisory | GRB | 20 hr |
| Jan 26, 3:14 PM CST | Wind Chill Advisory | GRB | 21 hr |
| Jan 26, 3:14 PM CST | Winter Weather Advisory | GRB | 48 hr |
| Jan 28, 3:03 PM CST | Wind Chill Warning | GRB | 69 hr |
| Jan 28, 3:03 PM CST | Winter Weather Advisory | GRB | 27 hr |
| Jan 31, 11:56 AM CST | Wind Chill Advisory | GRB | 6 hr |
| Feb 2, 3:41 AM CST | Winter Weather Advisory | GRB | 32 hr |
| Feb 3, 4:15 AM CST | Winter Storm Watch | GRB | 10 hr |
| Feb 3, 11:41 AM CST | Dense Fog Advisory | GRB | 24 hr |
| Feb 3, 2:26 PM CST | Ice Storm Warning | GRB | 24 hr |
| Feb 4, 7:06 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Feb 5, 3:13 AM CST | Winter Weather Advisory | GRB | 24 hr |
| Feb 5, 10:58 AM CST | Winter Storm Warning | GRB | 16 hr |
| Feb 5, 6:24 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Feb 6, 3:47 AM CST | Winter Storm Watch | GRB | 11 hr |
| Feb 6, 2:35 PM CST | Winter Storm Warning | GRB | 33 hr |
| Feb 7, 2:56 PM CST | Wind Chill Advisory | GRB | 42 hr |
| Feb 10, 3:20 PM CST | Winter Storm Watch | GRB | 12 hr |
| Feb 11, 3:46 AM CST | Winter Storm Warning | GRB | 47 hr |
| Feb 19, 10:47 AM CST | Winter Weather Advisory | GRB | 34 hr |
| Feb 22, 3:27 AM CST | Winter Storm Watch | GRB | 25 hr |
| Feb 22, 2:29 PM CST | Winter Weather Advisory | GRB | 22 hr |
| Feb 23, 4:19 AM CST | Winter Storm Warning | GRB | 41 hr |
| Feb 23, 8:52 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Feb 24, 3:58 AM CST | Blizzard Warning | GRB | 17 hr |
| Feb 24, 8:56 PM CST | Winter Weather Advisory | GRB | 13 hr |
| Feb 26, 3:00 AM CST | Winter Weather Advisory | GRB | 33 hr |
| Mar 1, 11:18 AM CST | Winter Weather Advisory | GRB | 16 hr |
| Mar 2, 3:17 AM CST | Wind Chill Advisory | GRB | 30 hr |
| Mar 3, 9:08 AM CST | Wind Chill Advisory | GRB | 27 hr |
| Mar 4, 2:35 PM CST | Wind Chill Advisory | GRB | 18 hr |
| Mar 8, 2:33 PM CST | Winter Weather Advisory | GRB | 45 hr |
| Mar 12, 2:43 PM CDT | Flood Watch | GRB | 61 hr |
| Mar 13, 8:53 AM CDT | Dense Fog Advisory | GRB | 4 hr |
| Mar 14, 8:08 AM CDT | Dense Fog Advisory | GRB | 11 hr |
| Apr 2, 5:41 PM CDT | Special Weather Statement | GRB | 49 min |
| Apr 6, 7:56 PM CDT | Dense Fog Advisory | GRB | 12 hr |
| Apr 7, 9:08 PM CDT | Dense Fog Advisory | GRB | 10 hr |
| Apr 9, 4:15 AM CDT | Winter Storm Watch | GRB | 25 hr |
| Apr 10, 4:55 AM CDT | Winter Weather Advisory | GRB | 53 hr |
| Apr 10, 3:27 PM CDT | Winter Storm Warning | GRB | 34 hr |
| Apr 21, 3:23 AM CDT | Flood Watch | GRB | 48 hr |
| Apr 22, 4:16 PM CDT | River Flood Warning | GRB | 21 days |
| Apr 22, 6:34 PM CDT | River Flood Warning | GRB | 21 days |
| Apr 22, 6:34 PM CDT | River Flood Warning | GRB | 21 days |
| Apr 23, 9:08 AM CDT | River Flood Warning | GRB | 47 hr |
| Apr 24, 7:33 AM CDT | River Flood Warning | GRB | 27 hr |
| May 20, 9:34 AM CDT | River Flood Warning | GRB | 52 hr |
| May 20, 7:28 PM CDT | River Flood Warning | GRB | 3 days |
| May 22, 7:27 PM CDT | Special Weather Statement | GRB | 33 min |
| Jun 2, 2:18 AM CDT | Frost Advisory | GRB | 28 hr |
| Jun 11, 4:09 PM CDT | Special Weather Statement | GRB | 66 min |
| Jun 11, 5:09 PM CDT | Special Weather Statement | GRB | 66 min |
| Jun 25, 7:14 PM CDT | Special Weather Statement | GRB | 61 min |
| Jul 10, 3:56 PM CDT | Special Weather Statement | GRB | 34 min |
| Jul 12, 12:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jul 12, 2:32 PM CDT | Special Weather Statement | GRB | 43 min |
| Jul 12, 2:55 PM CDT | Special Weather Statement | GRB | 50 min |
| Jul 12, 3:58 PM CDT | Special Weather Statement | GRB | 47 min |
| Jul 12, 4:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jul 15, 3:48 PM CDT | Special Weather Statement | GRB | 42 min |
| Jul 15, 5:19 PM CDT | Special Weather Statement | GRB | 56 min |
| Jul 15, 8:09 PM CDT | Special Weather Statement | GRB | 81 min |
| Jul 15, 9:24 PM CDT | Special Weather Statement | GRB | 66 min |
| Jul 18, 12:28 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 19, 5:55 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 19, 8:26 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jul 28, 6:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jul 28, 10:21 PM CDT | Special Weather Statement | GRB | 39 min |
| Jul 28, 11:04 PM CDT | Special Weather Statement | GRB | 41 min |
| Aug 2, 4:09 PM CDT | Special Weather Statement | GRB | 36 min |
| Aug 2, 4:50 PM CDT | Special Weather Statement | GRB | 40 min |
| Aug 5, 9:34 AM CDT | Mesoscale Discussion | SPC | 116 min |
| Aug 5, 1:40 PM CDT | Severe Thunderstorm Warning | GRB | 65 min |
| Aug 5, 1:45 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 6, 12:40 AM CDT | Dense Fog Advisory | GRB | 8 hr |
| Aug 7, 12:30 PM CDT | Special Weather Statement | GRB | 75 min |
| Aug 7, 1:09 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 27, 12:31 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Aug 27, 1:37 PM CDT | Special Weather Statement | GRB | 38 min |
| Aug 27, 2:18 PM CDT | Special Weather Statement | GRB | 42 min |
| Sep 5, 6:17 PM CDT | Special Weather Statement | GRB | 58 min |
| Sep 15, 8:49 PM CDT | Dense Fog Advisory | GRB | 13 hr |
| Sep 16, 7:20 PM CDT | Dense Fog Advisory | GRB | 16 hr |
| Sep 20, 12:39 AM CDT | Dense Fog Advisory | GRB | 9 hr |
| Sep 24, 6:52 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Sep 24, 7:17 PM CDT | Tornado Watch | SPC | 4 hr |
| Sep 24, 9:01 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Sep 24, 10:48 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Sep 24, 11:52 PM CDT | Special Weather Statement | GRB | 53 min |
| Sep 30, 11:49 AM CDT | Special Weather Statement | GRB | 56 min |
| Oct 10, 2:31 PM CDT | Freeze Watch | GRB | 13 hr |
| Oct 11, 3:32 AM CDT | Freeze Warning | GRB | 29 hr |
| Oct 28, 3:06 PM CDT | Winter Weather Advisory | GRB | 15 hr |
| Nov 24, 2:22 PM CST | Winter Storm Watch | GRB | 24 hr |
| Nov 25, 2:17 PM CST | Winter Storm Warning | GRB | 52 hr |
| Nov 27, 1:43 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Nov 29, 3:51 AM CST | Winter Storm Watch | GRB | 18 hr |
| Nov 29, 2:48 PM CST | Winter Storm Warning | GRB | 54 hr |
| Dec 8, 2:55 AM CST | Winter Weather Advisory | GRB | 41 hr |
| Dec 10, 3:19 AM CST | Wind Chill Advisory | GRB | 33 hr |
| Dec 11, 3:12 AM CST | Winter Weather Advisory | GRB | 39 hr |
| Dec 11, 2:07 PM CST | Winter Storm Warning | GRB | 28 hr |
| Dec 24, 2:29 PM CST | Dense Fog Advisory | GRB | 45 hr |
| Dec 28, 2:30 AM CST | Winter Weather Advisory | GRB | 31 hr |
| Dec 29, 2:54 AM CST | Winter Storm Watch | GRB | 12 hr |
| Dec 29, 2:52 PM CST | Winter Storm Warning | GRB | 33 hr |
| Dec 29, 6:03 PM CST | Dense Fog Advisory | GRB | 9 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 archive20182020
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.