Alert archive / Michigan / Cheboygan County
Weather alerts in Cheboygan County, Michigan, 2008
91 weather alerts in 2008, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Cheboygan County and its neighbors
Each county as a circle sized by its count in 2008. Tap one for its archive.
- Alerts
- 91
- Warnings
- 28
- Watches
- 16
- Advisories
- 28
- Busiest month
- December20 alerts
- Busiest day
- April 26, 20084 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Cheboygan County, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 10 | 2 | 80% | 0 | ||
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Gaylord, MI: tornado warnings | 17 | 2 | 88% | 6 | 83% | 19 min |
| NWS Gaylord, MI: severe thunderstorm warnings | 141 | 36 | 74% | 102 | 82% | 19 min |
| NWS Gaylord, MI: flash flood warnings | 13 | 2 | 85% | 6 | 50% | 248 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 3, 4:39 AM EST | Wind Advisory | APX | 20 hr |
| Jan 5, 6:51 PM EST | Dense Fog Advisory | APX | 45 hr |
| Jan 10, 4:23 PM EST | Winter Storm Warning | APX | 18 hr |
| Jan 10, 7:57 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 12, 4:04 PM EST | Snow Advisory | APX | 37 hr |
| Jan 17, 11:50 PM EST | Snow and Blowing Snow Advisory | APX | 10 hr |
| Jan 18, 4:17 AM EST | Winter Weather Advisory | APX | 67 hr |
| Jan 21, 5:05 AM EST | Snow Advisory | APX | 31 hr |
| Jan 22, 4:56 AM EST | Lake Effect Snow Warning | APX | 24 hr |
| Jan 28, 4:21 PM EST | Winter Storm Watch | APX | 19 hr |
| Jan 29, 4:47 AM EST | Winter Storm Warning | APX | 35 hr |
| Jan 30, 4:14 PM EST | Snow and Blowing Snow Advisory | APX | 12 hr |
| Feb 4, 5:00 AM EST | Winter Weather Advisory | APX | 28 hr |
| Feb 4, 12:34 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 8, 4:18 AM EST | Winter Storm Watch | APX | 24 hr |
| Feb 9, 4:08 AM EST | Winter Storm Warning | APX | 48 hr |
| Feb 13, 4:36 AM EST | Winter Storm Watch | APX | 24 hr |
| Feb 15, 4:01 PM EST | Winter Storm Watch | APX | 24 hr |
| Feb 16, 3:55 PM EST | Winter Storm Warning | APX | 37 hr |
| Feb 28, 4:07 PM EST | Snow Advisory | APX | 31 hr |
| Mar 2, 8:09 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Mar 24, 4:00 PM EDT | Winter Weather Advisory | APX | 20 hr |
| Apr 1, 4:41 AM EDT | Wind Advisory | APX | 11 hr |
| Apr 7, 11:06 AM EDT | Mesoscale Discussion | SPC | 84 min |
| Apr 7, 3:20 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 16, 12:03 PM EDT | Red Flag Warning | APX | 10 hr |
| Apr 23, 5:23 AM EDT | Fire Weather Watch | APX | 11 hr |
| Apr 23, 4:02 PM EDT | Red Flag Warning | APX | 28 hr |
| Apr 25, 7:43 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Apr 25, 8:17 PM EDT | Severe Thunderstorm Warning | APX | 35 min |
| Apr 25, 8:38 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 25, 9:37 PM EDT | Severe Thunderstorm Warning | APX | 33 min |
| Apr 25, 10:22 PM EDT | Severe Thunderstorm Warning | APX | 53 min |
| May 14, 3:42 PM EDT | Frost Advisory | APX | 16 hr |
| May 17, 2:28 PM EDT | Mesoscale Discussion | SPC | 92 min |
| May 18, 4:29 PM EDT | Frost Advisory | APX | 12 hr |
| May 24, 5:32 AM EDT | Fire Weather Watch | APX | 23 hr |
| May 25, 4:06 AM EDT | Red Flag Warning | APX | 17 hr |
| May 25, 11:22 PM EDT | Mesoscale Discussion | SPC | 83 min |
| May 26, 3:56 PM EDT | Freeze Watch | APX | 24 hr |
| May 27, 3:53 PM EDT | Freeze Warning | APX | 16 hr |
| May 29, 12:45 PM EDT | Red Flag Warning | APX | 7 hr |
| May 30, 10:48 PM EDT | Severe Thunderstorm Warning | APX | 57 min |
| May 30, 11:09 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jun 6, 2:18 PM EDT | Tornado Watch | SPC | 10 hr |
| Jun 6, 7:27 PM EDT | Severe Thunderstorm Warning | APX | 33 min |
| Jun 7, 3:27 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jun 12, 9:21 PM EDT | Mesoscale Discussion | SPC | 24 min |
| Jun 15, 1:38 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 22, 3:52 PM EDT | Severe Thunderstorm Warning | APX | 38 min |
| Jun 22, 5:19 PM EDT | Severe Thunderstorm Warning | APX | 30 min |
| Jun 27, 5:30 PM EDT | Severe Thunderstorm Warning | APX | 34 min |
| Jun 27, 7:12 PM EDT | Severe Thunderstorm Warning | APX | 41 min |
| Jun 28, 11:44 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 2, 1:18 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 2, 6:42 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Jul 25, 6:16 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Aug 9, 3:48 AM EDT | Lakeshore Flood Statement | APX | 43 hr |
| Aug 16, 7:16 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 23, 12:39 PM EDT | Severe Thunderstorm Warning | APX | 66 min |
| Sep 4, 5:09 AM EDT | Lakeshore Flood Statement | APX | 36 hr |
| Sep 7, 3:51 PM EDT | Coastal Flood Warning | APX | 5 hr |
| Sep 7, 9:08 PM EDT | Lakeshore Flood Statement | APX | 14 hr |
| Sep 9, 3:50 PM EDT | Frost Advisory | APX | 16 hr |
| Sep 25, 11:11 PM EDT | Dense Fog Advisory | APX | 11 hr |
| Nov 9, 11:51 AM EST | Winter Weather Advisory | APX | 23 hr |
| Nov 16, 11:56 AM EST | Lake Effect Snow Advisory | APX | 22 hr |
| Nov 19, 11:47 AM EST | Winter Weather Advisory | APX | 7 hr |
| Nov 29, 4:31 PM EST | Winter Storm Watch | APX | 21 hr |
| Nov 30, 1:19 PM EST | Winter Storm Warning | APX | 34 hr |
| Nov 30, 1:19 PM EST | Winter Weather Advisory | APX | 9 hr |
| Dec 1, 1:37 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 1, 4:18 PM EST | Winter Storm Warning | APX | 7 hr |
| Dec 3, 4:38 AM EST | Winter Storm Warning | APX | 54 hr |
| Dec 3, 4:38 AM EST | Winter Weather Advisory | APX | 47 hr |
| Dec 6, 11:31 AM EST | Winter Weather Advisory | APX | 16 hr |
| Dec 7, 3:53 PM EST | Winter Storm Watch | APX | 24 hr |
| Dec 8, 3:41 PM EST | Winter Storm Warning | APX | 30 hr |
| Dec 15, 4:37 AM EST | Winter Weather Advisory | APX | 17 hr |
| Dec 19, 4:47 PM EST | Winter Storm Watch | APX | 24 hr |
| Dec 20, 4:33 PM EST | Winter Storm Warning | APX | 37 hr |
| Dec 22, 4:17 AM EST | Winter Storm Watch | APX | 36 hr |
| Dec 23, 4:38 AM EST | Winter Weather Advisory | APX | 25 hr |
| Dec 23, 4:23 PM EST | Winter Storm Warning | APX | 30 hr |
| Dec 24, 5:08 AM EST | Winter Weather Advisory | APX | 23 hr |
| Dec 26, 4:04 AM EST | Winter Weather Advisory | APX | 8 hr |
| Dec 26, 4:30 PM EST | Dense Fog Advisory | APX | 35 hr |
| Dec 26, 4:55 PM EST | Winter Storm Watch | APX | 26 hr |
| Dec 27, 4:35 PM EST | Winter Storm Warning | APX | 22 hr |
| Dec 29, 10:03 AM EST | Wind Advisory | APX | 12 hr |
| Dec 29, 10:20 AM EST | Winter Weather Advisory | APX | 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 | |
| Severe Thunderstorm Warning | 10 |
| Severe Thunderstorm Watch | 3 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 16 |
| Winter | |
| Lake Effect Snow Warning | 1 |
| Winter Storm Warning | 11 |
| Winter Storm Watch | 9 |
| Lake Effect Snow Advisory | 1 |
| Snow Advisory | 3 |
| Snow and Blowing Snow Advisory | 2 |
| Winter Weather Advisory | 13 |
| Cold | |
| Freeze Warning | 1 |
| Freeze Watch | 1 |
| Frost Advisory | 3 |
| Wind and dust | |
| Wind Advisory | 3 |
| Fire | |
| Red Flag Warning | 4 |
| Fire Weather Watch | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
| Coast and beach | |
| Coastal Flood Warning | 1 |
| Lakeshore Flood Statement | 3 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20072009
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.