Alert archive / Wisconsin / Door County
Weather alerts in Door County, Wisconsin, 2009
55 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Door County and its neighbors
Each county as a circle sized by its count in 2009. Tap one for its archive.
- Alerts
- 55
- Warnings
- 11
- Watches
- 7
- Advisories
- 31
- Busiest month
- December12 alerts
- Busiest day
- February 27, 20092 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Door County, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 0 | 2 | 0% | |||
| Flash flood warnings | 1 | 1 | 0% | 1 | 100% | 25 min |
Each office's whole area, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Green Bay, WI: severe thunderstorm warnings | 14 | 4 | 71% | 12 | 42% | 21 min |
| NWS Green Bay, WI: flash flood warnings | 2 | 1 | 50% | 1 | 100% | 25 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 1, 1:50 PM CST | Winter Weather Advisory | GRB | 4 hr |
| Jan 3, 5:14 AM CST | Winter Weather Advisory | GRB | 25 hr |
| Jan 4, 12:08 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Jan 12, 7:51 PM CST | Winter Weather Advisory | GRB | 7 hr |
| Jan 14, 5:09 AM CST | Wind Chill Warning | GRB | 53 hr |
| Jan 16, 3:40 PM CST | Winter Weather Advisory | GRB | 26 hr |
| Jan 17, 5:35 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Jan 23, 3:50 AM CST | Wind Chill Advisory | GRB | 3 days |
| Feb 10, 6:55 AM CST | Dense Fog Advisory | GRB | 4 hr |
| Feb 16, 3:27 PM CST | Winter Storm Watch | GRB | 13 hr |
| Feb 17, 4:31 AM CST | Winter Weather Advisory | GRB | 35 hr |
| Feb 20, 3:53 PM CST | Winter Weather Advisory | GRB | 26 hr |
| Feb 21, 5:11 PM CST | Winter Storm Warning | GRB | 4 hr |
| Feb 24, 3:34 PM CST | Winter Storm Watch | GRB | 24 hr |
| Feb 25, 3:52 PM CST | Winter Storm Warning | GRB | 31 hr |
| Feb 26, 6:31 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Feb 26, 11:05 PM CST | Winter Weather Advisory | GRB | 4 hr |
| Mar 6, 3:12 PM CST | Winter Storm Watch | GRB | 25 hr |
| Mar 7, 4:13 PM CST | Winter Storm Warning | GRB | 29 hr |
| Mar 8, 12:58 PM CDT | Mesoscale Discussion | SPC | 4 hr |
| Mar 9, 4:17 PM CDT | Winter Weather Advisory | GRB | 19 hr |
| Mar 10, 4:04 AM CDT | Wind Advisory | GRB | 31 hr |
| Mar 10, 4:17 PM CDT | Dense Fog Advisory | GRB | 6 hr |
| Mar 24, 11:49 AM CDT | Areal Flood Advisory | GRB | 8 hr |
| Mar 24, 4:14 PM CDT | Areal Flood Advisory | GRB | 8 hr |
| Mar 24, 11:32 PM CDT | Areal Flood Advisory | GRB | 3 hr |
| Mar 27, 4:03 PM CDT | Winter Storm Watch | GRB | 12 hr |
| Mar 28, 4:07 AM CDT | Winter Weather Advisory | GRB | 24 hr |
| May 10, 3:19 PM CDT | Frost Advisory | GRB | 16 hr |
| May 16, 2:54 PM CDT | Frost Advisory | GRB | 16 hr |
| Aug 14, 6:23 PM CDT | Areal Flood Advisory | GRB | 3 hr |
| Aug 14, 6:52 PM CDT | Flash Flood Warning | GRB | 71 min |
| Sep 26, 3:23 PM CDT | Wind Advisory | GRB | 52 hr |
| Sep 27, 4:07 AM CDT | High Wind Watch | GRB | 12 hr |
| Sep 28, 5:06 PM CDT | High Wind Warning | GRB | 14 hr |
| Sep 29, 6:55 AM CDT | Wind Advisory | GRB | 9 hr |
| Sep 30, 1:24 PM CDT | Frost Advisory | GRB | 19 hr |
| Oct 6, 4:07 AM CDT | Wind Advisory | GRB | 20 hr |
| Oct 7, 12:11 AM CDT | High Wind Warning | GRB | 7 hr |
| Oct 9, 3:27 AM CDT | Frost Advisory | GRB | 28 hr |
| Oct 9, 3:27 AM CDT | Freeze Watch | GRB | 28 hr |
| Oct 10, 7:03 AM CDT | Freeze Warning | GRB | 25 hr |
| Nov 22, 3:44 AM CST | Dense Fog Advisory | GRB | 5 hr |
| Dec 5, 2:59 PM CST | Winter Weather Advisory | GRB | 44 hr |
| Dec 6, 3:41 PM CST | Winter Storm Watch | GRB | 24 hr |
| Dec 7, 3:27 PM CST | Winter Storm Warning | GRB | 57 hr |
| Dec 8, 3:40 PM CST | Blizzard Warning | GRB | 24 hr |
| Dec 9, 6:28 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 9, 3:27 PM CST | Winter Weather Advisory | GRB | 4 hr |
| Dec 13, 3:01 PM CST | Winter Weather Advisory | GRB | 21 hr |
| Dec 23, 4:59 AM CST | Winter Weather Advisory | GRB | 47 hr |
| Dec 24, 6:28 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 26, 4:51 AM CST | Winter Weather Advisory | GRB | 7 hr |
| Dec 26, 12:03 PM CST | Winter Storm Warning | GRB | 15 hr |
| Dec 28, 8:58 AM CST | Winter Weather Advisory | GRB | 12 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 | |
| Mesoscale Discussion | 6 |
| Flooding | |
| Flash Flood Warning | 1 |
| Areal Flood Advisory | 4 |
| Winter | |
| Blizzard Warning | 1 |
| Winter Storm Warning | 5 |
| Winter Storm Watch | 5 |
| Winter Weather Advisory | 15 |
| Cold | |
| Freeze Warning | 1 |
| Wind Chill Warning | 1 |
| Freeze Watch | 1 |
| Frost Advisory | 4 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 2 |
| High Wind Watch | 1 |
| Wind Advisory | 4 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20082010
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.