Alert archive / Michigan / Presque Isle County
Weather alerts in Presque Isle County, Michigan, 2011
55 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Presque Isle County and its neighbors
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Alerts
- 55
- Warnings
- 15
- Watches
- 6
- Advisories
- 27
- Busiest month
- May13 alerts
- Busiest day
- May 31, 20116 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Presque Isle County, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 14 | 8 | 43% | 8 | 100% | 33 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Gaylord, MI: tornado warnings | 3 | 0 | 100% | 2 | 0% | |
| NWS Gaylord, MI: severe thunderstorm warnings | 85 | 25 | 71% | 86 | 62% | 22 min |
| NWS Gaylord, MI: flash flood warnings | 8 | 2 | 75% | 4 | 75% | 141 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, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 6, 2:17 PM EST | Lake Effect Snow Advisory | APX | 38 hr |
| Jan 17, 11:45 AM EST | Winter Weather Advisory | APX | 23 hr |
| Feb 2, 3:33 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 15, 4:18 PM EST | Freezing Rain Advisory | APX | 6 hr |
| Feb 18, 4:09 AM EST | Winter Weather Advisory | APX | 24 hr |
| Feb 18, 4:16 AM EST | Wind Advisory | APX | 23 hr |
| Mar 1, 10:22 AM EST | Wind Advisory | APX | 9 hr |
| Mar 8, 3:51 PM EST | Winter Weather Advisory | APX | 31 hr |
| Mar 22, 9:52 AM EDT | Winter Weather Advisory | APX | 26 hr |
| Apr 10, 6:20 PM EDT | Tornado Watch | SPC | 7 hr |
| Apr 16, 4:34 PM EDT | Wind Advisory | APX | 29 hr |
| Apr 18, 3:34 PM EDT | Winter Storm Watch | APX | 13 hr |
| Apr 19, 4:13 AM EDT | Winter Storm Warning | APX | 24 hr |
| Apr 19, 5:52 PM EDT | Mesoscale Discussion | SPC | 4 hr |
| May 15, 3:48 AM EDT | Freeze Warning | APX | 28 hr |
| May 22, 2:15 PM EDT | Severe Thunderstorm Warning | APX | 60 min |
| May 22, 3:15 PM EDT | Severe Thunderstorm Warning | APX | 19 min |
| May 22, 3:15 PM EDT | Mesoscale Discussion | SPC | 60 min |
| May 22, 3:25 PM EDT | Severe Thunderstorm Warning | APX | 35 min |
| May 24, 3:42 AM EDT | Frost Advisory | APX | 27 hr |
| May 26, 3:54 PM EDT | Frost Advisory | APX | 15 hr |
| May 31, 1:00 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| May 31, 1:56 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 31, 3:54 PM EDT | Wind Advisory | APX | 29 hr |
| May 31, 6:05 PM EDT | Severe Thunderstorm Warning | APX | 55 min |
| May 31, 7:26 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 31, 7:40 PM EDT | Severe Thunderstorm Warning | APX | 35 min |
| Jun 7, 6:01 PM EDT | Severe Thunderstorm Warning | APX | 46 min |
| Jun 7, 6:34 PM EDT | Severe Thunderstorm Warning | APX | 56 min |
| Jun 7, 7:27 PM EDT | Severe Thunderstorm Warning | APX | 63 min |
| Jun 8, 12:08 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jun 8, 1:54 PM EDT | Severe Thunderstorm Watch | SPC | 119 min |
| Jun 8, 2:40 PM EDT | Severe Thunderstorm Warning | APX | 65 min |
| Jun 21, 8:12 PM EDT | Flash Flood Watch | APX | 14 hr |
| Jun 22, 8:32 PM EDT | Dense Fog Advisory | APX | 7 hr |
| Jul 18, 12:29 AM EDT | Severe Thunderstorm Warning | APX | 61 min |
| Jul 18, 1:03 AM EDT | Severe Thunderstorm Warning | APX | 47 min |
| Jul 19, 4:21 AM EDT | Dense Fog Advisory | APX | 7 hr |
| Jul 19, 4:21 AM EDT | Heat Advisory | APX | 55 hr |
| Aug 18, 6:26 AM EDT | Dense Fog Advisory | APX | 3 hr |
| Aug 21, 4:10 PM EDT | Severe Thunderstorm Warning | APX | 38 min |
| Aug 24, 8:25 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Sep 1, 6:54 AM EDT | Dense Fog Advisory | APX | 3 hr |
| Sep 5, 3:38 AM EDT | Frost Advisory | APX | 28 hr |
| Sep 6, 3:30 PM EDT | Frost Advisory | APX | 17 hr |
| Sep 15, 4:07 AM EDT | Freeze Warning | APX | 28 hr |
| Sep 16, 3:52 PM EDT | Frost Advisory | APX | 15 hr |
| Sep 27, 10:19 PM EDT | Dense Fog Advisory | APX | 12 hr |
| Sep 29, 6:17 AM EDT | Dense Fog Advisory | APX | 5 hr |
| Oct 18, 4:20 PM EDT | High Wind Watch | APX | 19 hr |
| Oct 19, 11:49 AM EDT | Wind Advisory | APX | 24 hr |
| Nov 9, 11:16 AM EST | Wind Advisory | APX | 18 hr |
| Dec 8, 10:41 PM EST | Lake Effect Snow Advisory | APX | 6 hr |
| Dec 14, 4:15 AM EST | Dense Fog Advisory | APX | 6 hr |
| Dec 15, 4:55 PM EST | Winter Weather Advisory | APX | 16 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 | |
| Severe Thunderstorm Warning | 12 |
| Severe Thunderstorm Watch | 2 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 7 |
| Flooding | |
| Flash Flood Watch | 1 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Freezing Rain Advisory | 1 |
| Lake Effect Snow Advisory | 2 |
| Winter Weather Advisory | 5 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 2 |
| Frost Advisory | 5 |
| Wind and dust | |
| High Wind Watch | 1 |
| Wind Advisory | 6 |
| Fog and smoke | |
| Dense Fog Advisory | 7 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20102012
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.