Alert archive / Wisconsin / Bayfield County
Weather alerts in Bayfield County, Wisconsin, 2012
125 weather alerts in 2012, 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 2012. Tap one for its archive.
- Alerts
- 125
- Warnings
- 20
- Watches
- 12
- Advisories
- 25
- Busiest month
- May27 alerts
- Busiest day
- May 27, 201210 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, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 11 | 2 | 82% | 4 | 75% | 18 min |
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Duluth, MN: tornado warnings | 7 | 0 | 100% | 2 | 0% | |
| NWS Duluth, MN: severe thunderstorm warnings | 168 | 38 | 77% | 93 | 80% | 24 min |
| NWS Duluth, MN: flash flood warnings | 11 | 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 11, 4:11 AM CST | Lake Effect Snow Advisory | DLH | 54 hr |
| Jan 22, 3:13 PM CST | Winter Weather Advisory | DLH | 33 hr |
| Jan 30, 3:42 PM CST | Winter Weather Advisory | DLH | 18 hr |
| Feb 24, 4:51 AM CST | Winter Weather Advisory | DLH | 30 hr |
| Feb 25, 3:48 AM CST | Winter Weather Advisory | DLH | 47 hr |
| Feb 26, 11:02 AM CST | Winter Weather Advisory | DLH | 25 hr |
| Feb 26, 4:14 PM CST | Winter Storm Watch | DLH | 23 hr |
| Feb 27, 3:15 PM CST | Winter Storm Warning | DLH | 52 hr |
| Feb 28, 8:41 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Mar 2, 10:34 PM CST | Winter Weather Advisory | DLH | 16 hr |
| Mar 23, 8:45 AM CDT | Dense Fog Advisory | DLH | 4 hr |
| Mar 23, 3:52 PM CDT | Dense Fog Advisory | DLH | 20 hr |
| May 15, 7:32 PM CDT | Frost Advisory | DLH | 12 hr |
| May 19, 9:12 PM CDT | Special Weather Statement | DLH | 33 min |
| May 24, 9:41 AM CDT | Special Weather Statement | DLH | 34 min |
| May 24, 2:18 PM CDT | Special Weather Statement | DLH | 27 min |
| May 24, 2:22 PM CDT | Tornado Watch | SPC | 5 hr |
| May 24, 3:36 PM CDT | Special Weather Statement | DLH | 39 min |
| May 24, 4:14 PM CDT | Special Weather Statement | DLH | 31 min |
| May 24, 4:48 PM CDT | Special Weather Statement | DLH | 42 min |
| May 26, 7:56 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 26, 8:04 PM CDT | Special Weather Statement | DLH | 26 min |
| May 26, 8:54 PM CDT | Special Weather Statement | DLH | 36 min |
| May 26, 9:01 PM CDT | Special Weather Statement | DLH | 29 min |
| May 26, 9:39 PM CDT | Special Weather Statement | DLH | 36 min |
| May 27, 2:41 AM CDT | Special Weather Statement | DLH | 34 min |
| May 27, 3:55 AM CDT | Special Weather Statement | DLH | 65 min |
| May 27, 6:10 AM CDT | Special Weather Statement | DLH | 20 min |
| May 27, 7:28 AM CDT | Areal Flood Warning | DLH | 8 hr |
| May 27, 4:46 PM CDT | Areal Flood Warning | DLH | 24 hr |
| May 28, 1:48 PM CDT | Mesoscale Discussion | SPC | 57 min |
| May 28, 2:07 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 28, 3:11 PM CDT | Severe Thunderstorm Warning | DLH | 49 min |
| May 28, 3:49 PM CDT | Severe Thunderstorm Warning | DLH | 41 min |
| May 28, 3:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| May 28, 4:27 PM CDT | Severe Thunderstorm Warning | DLH | 33 min |
| May 28, 6:24 PM CDT | Severe Thunderstorm Warning | DLH | 51 min |
| May 31, 1:07 AM CDT | Frost Advisory | DLH | 7 hr |
| May 31, 3:02 PM CDT | Frost Advisory | DLH | 16 hr |
| Jun 6, 3:12 PM CDT | Special Weather Statement | DLH | 18 min |
| Jun 14, 8:35 AM CDT | Special Weather Statement | DLH | 25 min |
| Jun 14, 11:44 AM CDT | Special Weather Statement | DLH | 31 min |
| Jun 14, 2:48 PM CDT | Special Weather Statement | DLH | 12 min |
| Jun 14, 3:03 PM CDT | Special Weather Statement | DLH | 12 min |
| Jun 16, 11:54 AM CDT | Special Weather Statement | DLH | 21 min |
| Jun 17, 9:05 PM CDT | Special Weather Statement | DLH | 25 min |
| Jun 17, 10:54 PM CDT | Special Weather Statement | DLH | 36 min |
| Jun 19, 11:30 AM CDT | Special Weather Statement | DLH | 30 min |
| Jun 19, 4:14 PM CDT | Severe Thunderstorm Warning | DLH | 61 min |
| Jun 19, 9:13 PM CDT | Special Weather Statement | DLH | 17 min |
| Jun 19, 11:37 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Jun 20, 12:18 AM CDT | Areal Flood Warning | DLH | 12 hr |
| Jun 20, 2:08 AM CDT | Special Weather Statement | DLH | 67 min |
| Jun 20, 3:26 AM CDT | Special Weather Statement | DLH | 64 min |
| Jun 20, 9:40 AM CDT | Mesoscale Discussion | SPC | 95 min |
| Jun 20, 11:16 AM CDT | Special Weather Statement | DLH | 44 min |
| Jun 20, 2:10 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jul 2, 1:59 PM CDT | Heat Advisory | DLH | 7 hr |
| Jul 2, 6:40 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Jul 2, 6:54 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 2, 9:12 PM CDT | Severe Thunderstorm Warning | DLH | 48 min |
| Jul 2, 9:17 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Jul 2, 9:54 PM CDT | Severe Thunderstorm Warning | DLH | 36 min |
| Jul 2, 10:27 PM CDT | Severe Thunderstorm Warning | DLH | 63 min |
| Jul 2, 11:17 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jul 4, 12:34 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 4, 7:31 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 4, 9:50 PM CDT | Special Weather Statement | DLH | 40 min |
| Jul 6, 9:44 AM CDT | Special Weather Statement | DLH | 16 min |
| Jul 6, 6:02 PM CDT | Mesoscale Discussion | SPC | 28 min |
| Jul 15, 3:57 PM CDT | Heat Advisory | DLH | 29 hr |
| Jul 25, 2:05 AM CDT | Mesoscale Discussion | SPC | 55 min |
| Jul 25, 2:24 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 25, 2:51 AM CDT | Special Weather Statement | DLH | 24 min |
| Jul 25, 3:18 AM CDT | Special Weather Statement | DLH | 12 min |
| Jul 25, 3:33 AM CDT | Special Weather Statement | DLH | 27 min |
| Jul 25, 4:13 AM CDT | Special Weather Statement | DLH | 17 min |
| Jul 25, 4:41 AM CDT | Special Weather Statement | DLH | 19 min |
| Jul 25, 5:24 AM CDT | Mesoscale Discussion | SPC | 66 min |
| Aug 3, 7:33 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 3, 10:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Aug 4, 12:47 AM CDT | Special Weather Statement | DLH | 43 min |
| Aug 4, 1:31 AM CDT | Special Weather Statement | DLH | 44 min |
| Aug 6, 10:37 PM CDT | Special Weather Statement | DLH | 38 min |
| Aug 15, 3:25 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 15, 8:20 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Aug 23, 11:28 PM CDT | Special Weather Statement | DLH | 47 min |
| Aug 24, 12:20 AM CDT | Special Weather Statement | DLH | 55 min |
| Aug 24, 12:46 AM CDT | Severe Thunderstorm Warning | DLH | 44 min |
| Aug 24, 1:31 AM CDT | Special Weather Statement | DLH | 59 min |
| Aug 24, 1:41 AM CDT | Areal Flood Advisory | DLH | 4 hr |
| Aug 24, 2:50 AM CDT | Flash Flood Warning | DLH | 5 hr |
| Aug 24, 3:08 AM CDT | Special Weather Statement | DLH | 52 min |
| Sep 3, 3:04 AM CDT | Special Weather Statement | DLH | 26 min |
| Sep 4, 1:33 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Sep 4, 3:27 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Sep 4, 4:39 PM CDT | Severe Thunderstorm Warning | DLH | 36 min |
| Sep 4, 6:39 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Sep 4, 8:30 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Sep 13, 4:16 AM CDT | Frost Advisory | DLH | 28 hr |
| Sep 14, 3:19 PM CDT | Frost Advisory | DLH | 17 hr |
| Sep 19, 2:15 PM CDT | Special Weather Statement | DLH | 45 min |
| Sep 19, 2:33 PM CDT | Special Weather Statement | DLH | 42 min |
| Sep 19, 3:03 PM CDT | Special Weather Statement | DLH | 42 min |
| Sep 19, 3:38 PM CDT | Special Weather Statement | DLH | 52 min |
| Sep 19, 3:39 PM CDT | Severe Thunderstorm Warning | DLH | 35 min |
| Sep 21, 3:20 PM CDT | Freeze Watch | DLH | 12 hr |
| Sep 21, 7:47 PM CDT | Special Weather Statement | DLH | 13 min |
| Sep 22, 3:15 AM CDT | Freeze Warning | DLH | 28 hr |
| Sep 30, 12:23 AM CDT | Dense Fog Advisory | DLH | 9 hr |
| Oct 23, 9:26 AM CDT | Special Weather Statement | DLH | 19 min |
| Oct 23, 9:52 AM CDT | Special Weather Statement | DLH | 38 min |
| Oct 23, 3:50 PM CDT | Dense Fog Advisory | DLH | 18 hr |
| Oct 25, 11:51 AM CDT | Special Weather Statement | DLH | 39 min |
| Nov 10, 10:45 AM CST | Special Weather Statement | DLH | 30 min |
| Nov 20, 8:02 PM CST | Dense Fog Advisory | DLH | 12 hr |
| Nov 22, 3:38 PM CST | Winter Weather Advisory | DLH | 24 hr |
| Nov 23, 2:47 AM CST | Winter Storm Warning | DLH | 13 hr |
| Dec 1, 3:38 PM CST | Freezing Fog Advisory | DLH | 16 hr |
| Dec 1, 8:16 PM CST | Dense Fog Advisory | DLH | 3 hr |
| Dec 7, 4:12 AM CST | Winter Storm Watch | DLH | 12 hr |
| Dec 7, 3:45 PM CST | Winter Storm Warning | DLH | 68 hr |
| Dec 10, 12:04 PM CST | Winter Storm Warning | DLH | 2 hr |
| Dec 19, 1:01 PM CST | Winter Weather Advisory | DLH | 39 hr |
| Dec 27, 10:41 AM CST | Winter Weather Advisory | DLH | 47 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 archive20112013
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.