Alert archive / Wisconsin / Bayfield County
Weather alerts in Bayfield County, Wisconsin, 2024
94 weather alerts in 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Bayfield County and its neighbors
Each county as a circle sized by its count in 2024. Tap one for its archive.
- Alerts
- 94
- Warnings
- 24
- Watches
- 13
- Advisories
- 37
- Busiest month
- June19 alerts
- Busiest day
- June 25, 20247 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Bayfield County, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 9 | 4 | 56% | 4 | 25% | 15 min |
| Flash flood warnings | 3 | 1 | 67% | 3 | 67% | 88 min |
Each office's whole area, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Duluth, MN: tornado warnings | 24 | 5 | 79% | 25 | 96% | 12 min |
| NWS Duluth, MN: severe thunderstorm warnings | 94 | 52 | 45% | 198 | 73% | 26 min |
| NWS Duluth, MN: flash flood warnings | 12 | 7 | 42% | 54 | 83% | 145 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 11, 3:46 AM CST | Winter Storm Watch | DLH | 12 hr |
| Jan 11, 3:34 PM CST | Blizzard Warning | DLH | 35 hr |
| Jan 11, 3:34 PM CST | Winter Storm Warning | DLH | 56 hr |
| Jan 13, 2:25 AM CST | Winter Weather Advisory | DLH | 10 hr |
| Jan 13, 2:30 PM CST | Wind Chill Advisory | DLH | 70 hr |
| Jan 14, 1:32 PM CST | Wind Chill Advisory | DLH | 46 hr |
| Jan 15, 2:46 AM CST | Winter Weather Advisory | DLH | 51 hr |
| Jan 25, 6:43 PM CST | Dense Fog Advisory | DLH | 17 hr |
| Jan 26, 3:18 PM CST | Dense Fog Advisory | DLH | 19 hr |
| Mar 3, 5:12 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 3, 6:10 PM CST | Special Weather Statement | DLH | 35 min |
| Mar 3, 6:26 PM CST | Special Weather Statement | DLH | 34 min |
| Mar 3, 6:58 PM CST | Special Weather Statement | DLH | 17 min |
| Mar 22, 3:46 AM CDT | Winter Storm Watch | DLH | 33 hr |
| Mar 23, 3:35 AM CDT | Winter Storm Warning | DLH | 4 days |
| Mar 25, 12:51 PM CDT | Winter Weather Advisory | DLH | 57 hr |
| Mar 27, 11:23 AM CDT | Snow Squall Warning | DLH | 22 min |
| Mar 27, 11:56 AM CDT | Snow Squall Warning | DLH | 49 min |
| Mar 27, 12:12 PM CDT | Snow Squall Warning | DLH | 48 min |
| Mar 29, 4:08 AM CDT | Winter Weather Advisory | DLH | 30 hr |
| Apr 2, 3:47 AM CDT | Winter Storm Warning | DLH | 45 hr |
| Apr 4, 12:56 AM CDT | Winter Weather Advisory | DLH | 9 hr |
| May 9, 2:24 AM CDT | Freeze Watch | DLH | 11 hr |
| May 9, 1:46 PM CDT | Freeze Warning | DLH | 18 hr |
| May 13, 2:10 PM CDT | Frost Advisory | DLH | 18 hr |
| May 14, 1:59 PM CDT | Frost Advisory | DLH | 17 hr |
| May 18, 3:15 PM CDT | Special Weather Statement | DLH | 30 min |
| May 18, 3:26 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 20, 3:04 PM CDT | Flood Watch | DLH | 40 hr |
| May 22, 1:36 PM CDT | Wind Advisory | DLH | 5 hr |
| May 25, 6:29 PM CDT | Special Weather Statement | DLH | 31 min |
| May 26, 1:20 PM CDT | Dense Fog Advisory | DLH | 18 hr |
| May 29, 10:51 AM CDT | Frost Advisory | DLH | 20 hr |
| Jun 3, 3:59 PM CDT | Flood Watch | DLH | 38 hr |
| Jun 5, 2:40 PM CDT | Special Weather Statement | DLH | 35 min |
| Jun 5, 5:00 PM CDT | Severe Thunderstorm Warning | DLH | 18 min |
| Jun 5, 5:17 PM CDT | Special Weather Statement | DLH | 28 min |
| Jun 5, 5:37 PM CDT | Special Weather Statement | DLH | 38 min |
| Jun 5, 5:48 PM CDT | Severe Thunderstorm Warning | DLH | 42 min |
| Jun 12, 3:32 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 18, 7:00 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 18, 11:25 PM CDT | Severe Thunderstorm Warning | DLH | 65 min |
| Jun 18, 11:29 PM CDT | Areal Flood Warning | DLH | 3 min |
| Jun 18, 11:32 PM CDT | Flash Flood Warning | DLH | 6 hr |
| Jun 19, 5:23 AM CDT | Areal Flood Warning | DLH | 11 hr |
| Jun 24, 9:09 PM CDT | Severe Thunderstorm Warning | DLH | 51 min |
| Jun 24, 9:36 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 24, 9:53 PM CDT | Severe Thunderstorm Warning | DLH | 37 min |
| Jun 24, 10:10 PM CDT | Severe Thunderstorm Warning | DLH | 35 min |
| Jun 24, 10:41 PM CDT | Severe Thunderstorm Warning | DLH | 22 min |
| Jun 24, 11:18 PM CDT | Areal Flood Advisory | DLH | 97 min |
| Jun 25, 12:55 AM CDT | Flash Flood Warning | DLH | 4 hr |
| Jul 15, 3:06 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Jul 30, 1:44 PM CDT | Special Weather Statement | DLH | 16 min |
| Jul 30, 9:55 PM CDT | Dense Fog Advisory | DLH | 11 hr |
| Jul 31, 4:44 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 31, 5:49 PM CDT | Special Weather Statement | DLH | 26 min |
| Jul 31, 6:17 PM CDT | Special Weather Statement | DLH | 28 min |
| Aug 16, 3:11 PM CDT | Areal Flood Advisory | DLH | 3 hr |
| Aug 24, 2:21 AM CDT | Excessive Heat Watch | DLH | 24 hr |
| Aug 25, 2:15 AM CDT | Heat Advisory | DLH | 42 hr |
| Aug 26, 7:17 PM CDT | Special Weather Statement | DLH | 28 min |
| Aug 26, 7:51 PM CDT | Special Weather Statement | DLH | 24 min |
| Aug 26, 8:41 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 26, 9:25 PM CDT | Severe Thunderstorm Warning | DLH | 50 min |
| Aug 26, 10:06 PM CDT | Severe Thunderstorm Warning | DLH | 39 min |
| Aug 27, 2:13 AM CDT | Special Weather Statement | DLH | 32 min |
| Sep 6, 2:33 AM CDT | Frost Advisory | DLH | 29 hr |
| Sep 16, 2:21 PM CDT | Areal Flood Advisory | DLH | 3 hr |
| Sep 16, 2:38 PM CDT | Areal Flood Advisory | DLH | 56 min |
| Sep 16, 3:34 PM CDT | Flash Flood Warning | DLH | 2 hr |
| Sep 19, 5:08 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Sep 19, 5:10 PM CDT | Tornado Watch | SPC | 4 hr |
| Sep 19, 8:08 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Sep 22, 2:44 AM CDT | Frost Advisory | DLH | 29 hr |
| Sep 25, 4:06 AM CDT | Dense Fog Advisory | DLH | 5 hr |
| Sep 29, 2:02 AM CDT | Dense Fog Advisory | DLH | 7 hr |
| Oct 3, 1:39 PM CDT | Freeze Warning | DLH | 19 hr |
| Oct 6, 1:54 PM CDT | Frost Advisory | DLH | 18 hr |
| Oct 7, 2:41 PM CDT | Frost Advisory | DLH | 17 hr |
| Oct 30, 3:29 AM CDT | Winter Storm Watch | DLH | 17 hr |
| Oct 30, 2:42 PM CDT | Winter Weather Advisory | DLH | 31 hr |
| Nov 10, 2:24 AM CST | Wind Advisory | DLH | 32 hr |
| Nov 24, 2:29 AM CST | Winter Weather Advisory | DLH | 40 hr |
| Nov 27, 1:43 AM CST | Winter Weather Advisory | DLH | 3 days |
| Dec 3, 1:20 PM CST | Wind Advisory | DLH | 38 hr |
| Dec 4, 2:53 AM CST | Winter Weather Advisory | DLH | 27 hr |
| Dec 10, 2:41 AM CST | Winter Weather Advisory | DLH | 51 hr |
| Dec 11, 2:24 AM CST | Cold Weather Advisory | DLH | 32 hr |
| Dec 18, 3:36 AM CST | Winter Storm Watch | DLH | 10 hr |
| Dec 18, 1:15 PM CST | Winter Storm Warning | DLH | 24 hr |
| Dec 18, 1:15 PM CST | Winter Weather Advisory | DLH | 42 hr |
| Dec 26, 1:09 PM CST | Dense Fog Advisory | DLH | 45 hr |
| Dec 28, 7:55 PM CST | Dense Fog Advisory | DLH | 49 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 archive20232025
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.