Alert archive / Michigan / Arenac County
Weather alerts in Arenac County, Michigan, 2012
71 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Arenac County and its neighbors
Each county as a circle sized by its count in 2012. Tap one for its archive.
- Alerts
- 71
- Warnings
- 22
- Watches
- 14
- Advisories
- 22
- Busiest month
- March15 alerts
- Busiest day
- May 3, 20127 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 2 tornado warnings covering Arenac County in 2012 had a tornado report inside them.
Arenac County, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 5 | 0 | 100% | 2 | 0% | |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Gaylord, MI: tornado warnings | 5 | 0 | 100% | 1 | 0% | |
| NWS Gaylord, MI: severe thunderstorm warnings | 37 | 13 | 65% | 49 | 53% | 15 min |
| NWS Gaylord, MI: flash flood warnings | 7 | 2 | 71% | 4 | 75% | 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, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 16, 4:07 PM EST | Winter Weather Advisory | APX | 36 hr |
| Jan 22, 11:43 AM EST | Freezing Rain Advisory | APX | 20 hr |
| Feb 23, 4:16 PM EST | Winter Weather Advisory | APX | 41 hr |
| Feb 24, 9:03 AM EST | Winter Storm Warning | APX | 7 hr |
| Feb 27, 4:52 PM EST | Winter Storm Watch | APX | 22 hr |
| Feb 28, 3:11 PM EST | Winter Weather Advisory | APX | 23 hr |
| Feb 29, 12:28 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Mar 1, 4:32 PM EST | Winter Storm Watch | APX | 12 hr |
| Mar 2, 4:18 AM EST | Winter Storm Warning | APX | 36 hr |
| Mar 2, 4:34 PM EST | Winter Weather Advisory | APX | 14 hr |
| Mar 8, 10:53 AM EST | River Flood Warning | APX | 53 hr |
| Mar 12, 10:55 AM EDT | River Flood Warning | APX | 4 days |
| Mar 12, 4:22 PM EDT | Tornado Watch | SPC | 7 hr |
| Mar 12, 5:29 PM EDT | Tornado Warning | APX | 19 min |
| Mar 12, 6:29 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Mar 17, 5:53 AM EDT | Dense Fog Advisory | APX | 7 hr |
| Mar 25, 3:36 AM EDT | Freeze Watch | APX | 12 hr |
| Mar 25, 4:00 PM EDT | Freeze Warning | APX | 19 hr |
| Mar 26, 4:18 PM EDT | Freeze Warning | APX | 18 hr |
| Mar 28, 3:58 AM EDT | Freeze Watch | APX | 12 hr |
| Mar 28, 3:59 PM EDT | Freeze Warning | APX | 12 hr |
| Mar 30, 3:33 PM EDT | Freeze Warning | APX | 12 hr |
| Apr 4, 4:10 PM EDT | Freeze Warning | APX | 18 hr |
| Apr 5, 11:55 AM EDT | Freeze Warning | APX | 22 hr |
| Apr 6, 4:12 PM EDT | Freeze Warning | APX | 18 hr |
| Apr 16, 4:05 AM EDT | Wind Advisory | APX | 18 hr |
| May 3, 6:52 AM EDT | Severe Thunderstorm Warning | APX | 68 min |
| May 3, 11:34 AM EDT | Mesoscale Discussion | SPC | 86 min |
| May 3, 11:47 AM EDT | River Flood Watch | APX | 11 hr |
| May 3, 12:41 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 3, 2:39 PM EDT | Mesoscale Discussion | SPC | 66 min |
| May 3, 3:56 PM EDT | Tornado Warning | APX | 49 min |
| May 3, 5:09 PM EDT | River Flood Warning | APX | 40 hr |
| May 11, 11:53 AM EDT | Fire Weather Watch | APX | 4 hr |
| May 11, 4:22 PM EDT | Red Flag Warning | APX | 4 hr |
| May 13, 3:31 AM EDT | Fire Weather Watch | APX | 40 hr |
| May 15, 3:56 AM EDT | Red Flag Warning | APX | 17 hr |
| May 16, 4:11 PM EDT | Frost Advisory | APX | 16 hr |
| May 17, 4:21 PM EDT | Fire Weather Watch | APX | 24 hr |
| May 30, 12:03 PM EDT | Frost Advisory | APX | 16 hr |
| Jun 18, 5:46 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 22, 12:28 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jun 28, 4:34 AM EDT | Fire Weather Watch | APX | 24 hr |
| Jun 29, 4:19 AM EDT | Red Flag Warning | APX | 16 hr |
| Jul 4, 3:59 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jul 5, 4:00 AM EDT | Heat Advisory | APX | 12 hr |
| Jul 17, 2:50 AM EDT | Heat Advisory | APX | 17 hr |
| Jul 17, 5:55 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Jul 25, 7:25 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jul 25, 7:38 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 25, 9:28 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jul 25, 10:34 PM EDT | Severe Thunderstorm Warning | APX | 29 min |
| Jul 26, 12:09 AM EDT | Mesoscale Discussion | SPC | 96 min |
| Jul 30, 11:55 PM EDT | Severe Thunderstorm Warning | APX | 65 min |
| Aug 16, 6:28 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Sep 5, 1:51 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Sep 5, 4:45 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Sep 5, 6:31 PM EDT | Severe Thunderstorm Warning | APX | 59 min |
| Sep 5, 7:30 PM EDT | Severe Thunderstorm Warning | APX | 60 min |
| Sep 18, 4:40 PM EDT | Frost Advisory | APX | 9 hr |
| Sep 23, 4:16 PM EDT | Frost Advisory | APX | 16 hr |
| Sep 26, 3:37 PM EDT | Frost Advisory | APX | 17 hr |
| Sep 27, 4:12 PM EDT | Frost Advisory | APX | 17 hr |
| Oct 13, 4:27 PM EDT | Flood Watch | APX | 31 hr |
| Oct 29, 3:32 AM EDT | Wind Advisory | APX | 34 hr |
| Nov 17, 5:32 AM EST | Dense Fog Advisory | APX | 6 hr |
| Nov 18, 10:00 PM EST | Dense Fog Advisory | APX | 12 hr |
| Nov 19, 10:04 AM EST | Dense Fog Advisory | APX | 3 hr |
| Nov 21, 4:18 AM EST | Dense Fog Advisory | APX | 7 hr |
| Dec 9, 3:26 AM EST | Winter Weather Advisory | APX | 26 hr |
| Dec 19, 4:06 PM EST | Winter Weather Advisory | APX | 45 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 | 5 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 3 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 13 |
| Flooding | |
| River Flood Warning | 3 |
| Flood Watch | 1 |
| River Flood Watch | 1 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 2 |
| Freezing Rain Advisory | 1 |
| Winter Weather Advisory | 6 |
| Heat | |
| Heat Advisory | 2 |
| Cold | |
| Freeze Warning | 7 |
| Freeze Watch | 2 |
| Frost Advisory | 6 |
| Wind and dust | |
| Wind Advisory | 2 |
| Fire | |
| Red Flag Warning | 3 |
| Fire Weather Watch | 4 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
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.