Alert archive / Michigan / Ontonagon County
Weather alerts in Ontonagon County, Michigan, 2008
87 weather alerts in 2008, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Ontonagon County and its neighbors
Each county as a circle sized by its count in 2008. Tap one for its archive.
- Alerts
- 87
- Warnings
- 21
- Watches
- 16
- Advisories
- 40
- Busiest month
- January19 alerts
- Busiest day
- July 12, 20085 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Ontonagon County, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 7 | 4 | 43% | 3 | 100% | 37 min |
| 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 Marquette, MI: tornado warnings | 2 | 0 | 100% | 1 | 0% | |
| NWS Marquette, MI: severe thunderstorm warnings | 54 | 19 | 65% | 33 | 79% | 23 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, 4:34 AM EST | Wind Advisory | MQT | 14 hr |
| Jan 6, 6:56 AM EST | Dense Fog Advisory | MQT | 21 hr |
| Jan 8, 4:18 AM EST | Dense Fog Advisory | MQT | 8 hr |
| Jan 13, 4:50 AM EST | Lake Effect Snow Warning | MQT | 38 hr |
| Jan 17, 4:33 PM EST | Lake Effect Snow Advisory | MQT | 3 days |
| Jan 17, 5:29 PM EST | Lake Effect Snow Warning | MQT | 23 hr |
| Jan 18, 5:29 AM EST | Wind Chill Advisory | MQT | 56 hr |
| Jan 18, 4:37 PM EST | Lake Effect Snow and Blowing Snow Advisory | MQT | 72 hr |
| Jan 20, 4:20 PM EST | Wind Chill Advisory | MQT | 12 hr |
| Jan 22, 4:54 AM EST | Lake Effect Snow Advisory | MQT | 38 hr |
| Jan 28, 4:39 AM EST | Winter Storm Watch | MQT | 12 hr |
| Jan 28, 4:42 PM EST | Blizzard Watch | MQT | 13 hr |
| Jan 29, 5:43 AM EST | Winter Storm Warning | MQT | 34 hr |
| Jan 29, 5:43 AM EST | Winter Weather Advisory | MQT | 31 hr |
| Jan 29, 11:34 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 29, 7:15 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 30, 4:58 AM EST | Lake Effect Snow and Blowing Snow Advisory | MQT | 30 hr |
| Jan 30, 11:13 AM EST | Wind Chill Advisory | MQT | 5 hr |
| Jan 30, 4:09 PM EST | Wind Chill Warning | MQT | 12 hr |
| Feb 3, 3:48 PM EST | Snow Advisory | MQT | 30 hr |
| Feb 8, 4:49 AM EST | Blizzard Watch | MQT | 24 hr |
| Feb 9, 4:48 AM EST | Blizzard Warning | MQT | 44 hr |
| Feb 10, 4:36 AM EST | Wind Advisory | MQT | 11 hr |
| Feb 10, 5:15 AM EST | Wind Chill Advisory | MQT | 30 hr |
| Feb 10, 10:28 PM EST | Lake Effect Snow and Blowing Snow Advisory | MQT | 6 hr |
| Feb 13, 3:52 PM EST | Snow Advisory | MQT | 24 hr |
| Feb 14, 12:35 PM EST | Lake Effect Snow Advisory | MQT | 10 hr |
| Feb 16, 4:16 PM EST | Winter Storm Watch | MQT | 13 hr |
| Feb 17, 4:47 AM EST | Lake Effect Snow and Blowing Snow Advisory | MQT | 36 hr |
| Feb 18, 4:39 PM EST | Lake Effect Snow Advisory | MQT | 43 hr |
| Mar 18, 8:46 AM EDT | Snow Advisory | MQT | 5 hr |
| Mar 29, 4:19 PM EDT | Winter Storm Watch | MQT | 24 hr |
| Mar 30, 4:41 PM EDT | Winter Storm Warning | MQT | 47 hr |
| Apr 8, 12:00 PM EDT | Snow Advisory | MQT | 20 hr |
| Apr 9, 4:24 PM EDT | Winter Storm Watch | MQT | 13 hr |
| Apr 10, 5:18 AM EDT | Winter Storm Warning | MQT | 54 hr |
| Apr 10, 8:49 PM EDT | Mesoscale Discussion | SPC | 6 hr |
| Apr 11, 9:01 PM EDT | Snow Advisory | MQT | 11 hr |
| Apr 15, 4:44 AM EDT | Wind Advisory | MQT | 14 hr |
| Apr 25, 8:26 PM EDT | Severe Thunderstorm Warning | MQT | 64 min |
| May 2, 6:46 PM EDT | Areal Flood Advisory | MQT | 11 hr |
| May 18, 3:54 AM EDT | Frost Advisory | MQT | 27 hr |
| May 25, 3:51 PM EDT | Freeze Watch | MQT | 24 hr |
| May 26, 3:26 PM EDT | Freeze Watch | MQT | 25 hr |
| May 26, 3:26 PM EDT | Freeze Warning | MQT | 16 hr |
| May 27, 4:01 PM EDT | Freeze Warning | MQT | 16 hr |
| May 28, 6:01 AM EDT | Red Flag Warning | MQT | 15 hr |
| Jun 6, 4:19 AM EDT | Wind Advisory | MQT | 16 hr |
| Jun 6, 1:42 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Jun 20, 3:26 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jun 25, 4:49 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Jul 2, 12:04 AM EDT | Mesoscale Discussion | SPC | 86 min |
| Jul 11, 10:15 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 11, 10:25 PM EDT | Severe Thunderstorm Warning | MQT | 65 min |
| Jul 11, 11:28 PM EDT | Severe Thunderstorm Warning | MQT | 62 min |
| Jul 12, 12:29 AM EDT | Severe Thunderstorm Warning | MQT | 61 min |
| Jul 12, 12:51 AM EDT | Mesoscale Discussion | SPC | 84 min |
| Jul 17, 1:14 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 17, 4:54 PM EDT | Areal Flood Advisory | MQT | 3 hr |
| Jul 25, 12:56 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 25, 1:58 PM EDT | Severe Thunderstorm Warning | MQT | 47 min |
| Jul 25, 2:19 PM EDT | Severe Thunderstorm Warning | MQT | 41 min |
| Jul 25, 2:19 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 25, 4:38 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jul 29, 4:24 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 24, 1:19 PM EDT | Frost Advisory | MQT | 19 hr |
| Sep 2, 2:36 PM EDT | Severe Thunderstorm Warning | MQT | 39 min |
| Sep 20, 4:42 AM EDT | Frost Advisory | MQT | 28 hr |
| Oct 24, 4:29 PM EDT | Winter Storm Watch | MQT | 37 hr |
| Oct 26, 4:59 AM EDT | Winter Weather Advisory | MQT | 36 hr |
| Nov 3, 4:03 AM EST | Dense Fog Advisory | MQT | 7 hr |
| Nov 8, 5:04 AM EST | Winter Weather Advisory | MQT | 41 hr |
| Nov 9, 7:08 PM EST | Winter Weather Advisory | MQT | 6 hr |
| Nov 15, 4:33 PM EST | Lake Effect Snow Advisory | MQT | 65 hr |
| Nov 18, 4:20 PM EST | Lake Effect Snow Watch | MQT | 19 hr |
| Nov 18, 4:20 PM EST | Lake Effect Snow Advisory | MQT | 63 hr |
| Nov 28, 8:30 AM EST | Lake Effect Snow Advisory | MQT | 7 hr |
| Dec 3, 11:52 AM EST | Lake Effect Snow Warning | MQT | 49 hr |
| Dec 4, 4:04 PM EST | Winter Storm Watch | MQT | 25 hr |
| Dec 5, 4:36 PM EST | Winter Storm Warning | MQT | 40 hr |
| Dec 11, 4:54 AM EST | Lake Effect Snow Advisory | MQT | 30 hr |
| Dec 11, 10:20 PM EST | Lake Effect Snow Warning | MQT | 9 hr |
| Dec 13, 6:42 AM EST | Winter Weather Advisory | MQT | 66 hr |
| Dec 14, 6:54 AM EST | Wind Chill Advisory | MQT | 53 hr |
| Dec 19, 4:32 PM EST | Winter Storm Watch | MQT | 13 hr |
| Dec 20, 5:47 AM EST | Winter Storm Warning | MQT | 49 hr |
| Dec 25, 4:58 AM EST | Winter Weather Advisory | MQT | 28 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
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.