Alert archive / Michigan / Ontonagon County
Weather alerts in Ontonagon County, Michigan, 2016
88 weather alerts in 2016, 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 2016. Tap one for its archive.
- Alerts
- 88
- Warnings
- 32
- Watches
- 8
- Advisories
- 29
- Busiest month
- June16 alerts
- Busiest day
- June 25, 20166 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, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 20 | 6 | 70% | 4 | 100% | 25 min |
| Flash flood warnings | 2 | 2 | 0% | 0 |
Each office's whole area, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Marquette, MI: tornado warnings | 4 | 2 | 50% | 7 | 29% | 2 min |
| NWS Marquette, MI: severe thunderstorm warnings | 56 | 17 | 70% | 56 | 68% | 25 min |
| NWS Marquette, MI: flash flood warnings | 3 | 3 | 0% | 8 | 88% | 53 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 11, 4:32 AM EST | Lake Effect Snow Advisory | MQT | 62 hr |
| Jan 15, 3:37 PM EST | Lake Effect Snow Advisory | MQT | 3 days |
| Jan 16, 5:09 AM EST | Lake Effect Snow Warning | MQT | 70 hr |
| Feb 1, 4:52 AM EST | Winter Storm Warning | MQT | 59 hr |
| Feb 1, 4:52 AM EST | Winter Weather Advisory | MQT | 35 hr |
| Feb 7, 4:18 AM EST | Winter Weather Advisory | MQT | 42 hr |
| Feb 8, 9:49 PM EST | Lake Effect Snow Warning | MQT | 18 hr |
| Feb 8, 9:49 PM EST | Lake Effect Snow Advisory | MQT | 69 hr |
| Feb 11, 3:54 PM EST | Lake Effect Snow Advisory | MQT | 50 hr |
| Feb 18, 4:10 PM EST | Winter Weather Advisory | MQT | 15 hr |
| Feb 27, 4:25 AM EST | Winter Weather Advisory | MQT | 39 hr |
| Feb 28, 9:44 PM EST | Winter Weather Advisory | MQT | 17 hr |
| Mar 15, 4:39 PM EDT | Winter Weather Advisory | MQT | 51 hr |
| Apr 1, 3:42 PM EDT | Winter Weather Advisory | MQT | 28 hr |
| Apr 2, 4:18 PM EDT | Winter Weather Advisory | MQT | 28 hr |
| Apr 5, 4:03 AM EDT | Winter Weather Advisory | MQT | 53 hr |
| Apr 7, 3:22 PM EDT | Winter Weather Advisory | MQT | 30 hr |
| Apr 8, 4:24 AM EDT | Winter Storm Warning | MQT | 14 hr |
| Apr 8, 6:52 PM EDT | Lake Effect Snow Advisory | MQT | 16 hr |
| May 6, 5:32 PM EDT | Special Weather Statement | MQT | 58 min |
| May 6, 6:31 PM EDT | Special Weather Statement | MQT | 44 min |
| May 9, 3:33 PM EDT | Fire Weather Watch | MQT | 13 hr |
| May 10, 4:26 AM EDT | Red Flag Warning | MQT | 16 hr |
| May 20, 3:16 PM EDT | Fire Weather Watch | MQT | 47 hr |
| May 22, 2:45 PM EDT | Red Flag Warning | MQT | 29 hr |
| May 24, 12:39 PM EDT | Special Weather Statement | MQT | 36 min |
| May 24, 5:44 PM EDT | Severe Thunderstorm Warning | MQT | 36 min |
| Jun 7, 3:21 PM EDT | Frost Advisory | MQT | 17 hr |
| Jun 10, 3:44 PM EDT | Tornado Watch | SPC | 5 hr |
| Jun 10, 4:30 PM EDT | Severe Thunderstorm Warning | MQT | 45 min |
| Jun 10, 4:51 PM EDT | Severe Thunderstorm Warning | MQT | 39 min |
| Jun 10, 4:59 PM EDT | Severe Thunderstorm Warning | MQT | 46 min |
| Jun 25, 10:30 AM EDT | Special Weather Statement | MQT | 60 min |
| Jun 25, 10:51 AM EDT | Severe Thunderstorm Warning | MQT | 39 min |
| Jun 25, 3:07 PM EDT | Severe Thunderstorm Warning | MQT | 38 min |
| Jun 25, 3:34 PM EDT | Severe Thunderstorm Warning | MQT | 41 min |
| Jun 25, 5:49 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jun 25, 7:55 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 25, 8:18 PM EDT | Severe Thunderstorm Warning | MQT | 57 min |
| Jun 25, 8:52 PM EDT | Severe Thunderstorm Warning | MQT | 83 min |
| Jun 25, 9:27 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jun 25, 10:10 PM EDT | Severe Thunderstorm Warning | MQT | 27 min |
| Jun 25, 11:43 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jul 5, 9:43 PM EDT | Severe Thunderstorm Warning | MQT | 47 min |
| Jul 5, 10:41 PM EDT | Special Weather Statement | MQT | 49 min |
| Jul 5, 11:45 PM EDT | Severe Thunderstorm Warning | MQT | 45 min |
| Jul 11, 6:48 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Jul 11, 7:03 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 11, 8:37 PM EDT | Severe Thunderstorm Warning | MQT | 53 min |
| Jul 11, 10:55 PM EDT | Flash Flood Warning | MQT | 6 hr |
| Jul 12, 12:59 AM EDT | Severe Thunderstorm Warning | MQT | 46 min |
| Jul 12, 1:30 AM EDT | Severe Thunderstorm Warning | MQT | 45 min |
| Jul 17, 3:35 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Jul 17, 6:15 PM EDT | Special Weather Statement | MQT | 30 min |
| Jul 21, 4:54 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 21, 5:31 AM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 21, 5:38 AM EDT | Severe Thunderstorm Warning | MQT | 52 min |
| Jul 21, 6:22 AM EDT | Severe Thunderstorm Warning | MQT | 38 min |
| Aug 10, 9:05 PM EDT | Areal Flood Advisory | MQT | 4 hr |
| Aug 10, 10:11 PM EDT | Flash Flood Warning | MQT | 4 hr |
| Aug 19, 8:49 AM EDT | Special Weather Statement | MQT | 41 min |
| Aug 22, 6:20 PM EDT | Special Weather Statement | MQT | 40 min |
| Aug 22, 6:30 PM EDT | Severe Thunderstorm Warning | MQT | 22 min |
| Sep 6, 1:23 AM EDT | Areal Flood Advisory | MQT | 3 hr |
| Sep 6, 4:05 AM EDT | Special Weather Statement | MQT | 55 min |
| Sep 14, 2:52 PM EDT | Frost Advisory | MQT | 18 hr |
| Sep 19, 2:58 AM EDT | Special Weather Statement | MQT | 47 min |
| Oct 17, 2:23 AM EDT | Special Weather Statement | MQT | 67 min |
| Oct 17, 2:49 AM EDT | Severe Thunderstorm Warning | MQT | 41 min |
| Oct 17, 3:26 AM EDT | Severe Thunderstorm Warning | MQT | 35 min |
| Oct 17, 4:15 AM EDT | Special Weather Statement | MQT | 45 min |
| Nov 17, 4:09 PM EST | Winter Storm Watch | MQT | 14 hr |
| Nov 18, 5:46 AM EST | Winter Storm Warning | MQT | 43 hr |
| Nov 23, 3:31 AM EST | Winter Weather Advisory | MQT | 26 hr |
| Nov 27, 12:02 AM EST | Dense Fog Advisory | MQT | 11 hr |
| Dec 6, 4:41 AM EST | Lake Effect Snow Watch | MQT | 24 hr |
| Dec 7, 4:12 AM EST | Lake Effect Snow Warning | MQT | 4 days |
| Dec 10, 3:42 PM EST | Winter Weather Advisory | MQT | 38 hr |
| Dec 12, 4:11 PM EST | Winter Weather Advisory | MQT | 68 hr |
| Dec 14, 5:39 AM EST | Wind Chill Advisory | MQT | 29 hr |
| Dec 16, 4:32 AM EST | Winter Weather Advisory | MQT | 62 hr |
| Dec 16, 3:53 PM EST | Winter Storm Warning | MQT | 37 hr |
| Dec 18, 2:46 PM EST | Wind Chill Advisory | MQT | 19 hr |
| Dec 24, 3:50 PM EST | Winter Weather Advisory | MQT | 42 hr |
| Dec 25, 6:13 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Dec 26, 3:51 PM EST | Lake Effect Snow Advisory | MQT | 36 hr |
| Dec 28, 4:18 PM EST | Lake Effect Snow Warning | MQT | 45 hr |
| Dec 30, 3:44 PM EST | Winter Weather Advisory | MQT | 20 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 archive20152017
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.