Alert archive / Michigan / Iosco County
Weather alerts in Iosco County, Michigan, 2013
63 weather alerts in 2013, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Iosco County and its neighbors
Each county as a circle sized by its count in 2013. Tap one for its archive.
- Alerts
- 63
- Warnings
- 10
- Watches
- 10
- Advisories
- 30
- Busiest month
- May12 alerts
- Busiest day
- November 17, 20135 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Iosco County, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 5 | 2 | 60% | 6 | 50% | 22 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Gaylord, MI: tornado warnings | 1 | 0 | 100% | 1 | 0% | |
| NWS Gaylord, MI: severe thunderstorm warnings | 52 | 29 | 44% | 77 | 73% | 23 min |
| NWS Gaylord, MI: flash flood warnings | 3 | 2 | 33% | 11 | 55% | 111 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 10, 8:09 PM EST | Freezing Rain Advisory | APX | 8 hr |
| Jan 12, 3:51 PM EST | Winter Weather Advisory | APX | 15 hr |
| Jan 12, 10:13 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 19, 11:58 PM EST | Wind Advisory | APX | 8 hr |
| Jan 21, 4:24 PM EST | Wind Chill Advisory | APX | 19 hr |
| Jan 27, 3:33 AM EST | Winter Weather Advisory | APX | 34 hr |
| Jan 28, 4:35 PM EST | Freezing Rain Advisory | APX | 19 hr |
| Jan 29, 12:35 PM EST | Flood Watch | APX | 21 hr |
| Jan 29, 3:42 PM EST | Dense Fog Advisory | APX | 8 hr |
| Feb 6, 4:15 AM EST | Winter Storm Watch | APX | 12 hr |
| Feb 6, 4:21 PM EST | Winter Storm Warning | APX | 41 hr |
| Feb 10, 3:19 AM EST | Winter Weather Advisory | APX | 23 hr |
| Feb 18, 4:09 PM EST | Winter Weather Advisory | APX | 18 hr |
| Feb 26, 1:44 PM EST | Winter Weather Advisory | APX | 21 hr |
| Apr 10, 3:58 AM EDT | Mesoscale Discussion | SPC | 4 hr |
| Apr 10, 4:37 PM EDT | Flood Watch | APX | 29 hr |
| Apr 10, 4:37 PM EDT | Winter Weather Advisory | APX | 12 hr |
| Apr 11, 3:50 PM EDT | Winter Weather Advisory | APX | 5 hr |
| Apr 11, 8:42 PM EDT | Winter Storm Warning | APX | 14 hr |
| Apr 16, 3:49 PM EDT | Flood Watch | APX | 61 hr |
| Apr 19, 4:31 AM EDT | Wind Advisory | APX | 19 hr |
| Apr 29, 5:52 AM EDT | Dense Fog Advisory | APX | 4 hr |
| May 11, 4:42 PM EDT | Freeze Watch | APX | 11 hr |
| May 12, 3:12 AM EDT | Freeze Warning | APX | 29 hr |
| May 16, 4:03 PM EDT | Frost Advisory | APX | 16 hr |
| May 20, 12:34 PM EDT | Mesoscale Discussion | SPC | 56 min |
| May 20, 12:58 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 20, 4:37 PM EDT | Severe Thunderstorm Warning | APX | 53 min |
| May 20, 5:59 PM EDT | Mesoscale Discussion | SPC | 61 min |
| May 23, 4:15 AM EDT | Frost Advisory | APX | 28 hr |
| May 24, 11:09 AM EDT | Frost Advisory | APX | 21 hr |
| May 25, 3:52 PM EDT | Frost Advisory | APX | 14 hr |
| May 26, 3:54 PM EDT | Frost Advisory | APX | 14 hr |
| May 30, 4:17 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Jun 2, 11:58 AM EDT | Frost Advisory | APX | 19 hr |
| Jun 11, 6:03 PM EDT | Severe Thunderstorm Warning | APX | 42 min |
| Jul 15, 4:38 PM EDT | Heat Advisory | APX | 4 days |
| Jul 18, 1:04 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Jul 19, 11:53 AM EDT | Mesoscale Discussion | SPC | 97 min |
| Jul 19, 2:08 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jul 19, 2:40 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 19, 5:48 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Jul 19, 9:20 PM EDT | Severe Thunderstorm Warning | APX | 40 min |
| Jul 19, 9:30 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 2, 1:29 PM EDT | Severe Thunderstorm Warning | APX | 61 min |
| Aug 2, 2:01 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Aug 7, 2:29 AM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Sep 13, 3:23 AM EDT | Frost Advisory | APX | 29 hr |
| Sep 16, 4:01 PM EDT | Freeze Warning | APX | 14 hr |
| Sep 22, 3:06 AM EDT | Frost Advisory | APX | 29 hr |
| Sep 23, 3:58 PM EDT | Frost Advisory | APX | 16 hr |
| Sep 24, 3:11 PM EDT | Frost Advisory | APX | 17 hr |
| Oct 31, 3:48 PM EDT | Wind Advisory | APX | 17 hr |
| Nov 17, 3:43 AM EST | High Wind Warning | APX | 30 hr |
| Nov 17, 12:32 PM EST | Mesoscale Discussion | SPC | 118 min |
| Nov 17, 1:13 PM EST | Tornado Watch | SPC | 6 hr |
| Nov 17, 3:51 PM EST | Mesoscale Discussion | SPC | 84 min |
| Nov 17, 4:56 PM EST | Severe Thunderstorm Warning | APX | 64 min |
| Dec 3, 4:55 PM EST | Winter Weather Advisory | APX | 11 hr |
| Dec 14, 10:34 AM EST | Winter Weather Advisory | APX | 12 hr |
| Dec 19, 10:26 PM EST | Winter Weather Advisory | APX | 17 hr |
| Dec 20, 4:06 PM EST | Winter Storm Watch | APX | 13 hr |
| Dec 21, 5:09 AM EST | Winter Weather Advisory | APX | 34 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 |
| Severe Thunderstorm Watch | 3 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 13 |
| Flooding | |
| Flood Watch | 3 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 2 |
| Freezing Rain Advisory | 2 |
| Winter Weather Advisory | 11 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 1 |
| Frost Advisory | 10 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20122014
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.