Alert archive / Michigan / Ontonagon County
Weather alerts in Ontonagon County, Michigan, 2019
97 weather alerts in 2019, 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 2019. Tap one for its archive.
- Alerts
- 97
- Warnings
- 21
- Watches
- 10
- Advisories
- 39
- Busiest month
- February19 alerts
- Busiest day
- September 25, 20196 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 1 tornado warnings covering Ontonagon County in 2019 had a tornado report inside them.
Ontonagon County, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 4 | 1 | 75% | 1 | 100% | 29 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Marquette, MI: tornado warnings | 2 | 0 | 100% | 0 | ||
| NWS Marquette, MI: severe thunderstorm warnings | 27 | 11 | 59% | 50 | 64% | 19 min |
| NWS Marquette, MI: flash flood warnings | 1 | 0 | 100% | 4 | 0% |
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 6, 4:17 AM EST | Winter Weather Advisory | MQT | 34 hr |
| Jan 8, 4:10 AM EST | Winter Weather Advisory | MQT | 51 hr |
| Jan 21, 3:39 PM EST | Winter Weather Advisory | MQT | 30 hr |
| Jan 23, 3:18 PM EST | Winter Storm Warning | MQT | 4 days |
| Jan 24, 4:37 AM EST | Wind Chill Advisory | MQT | 54 hr |
| Jan 26, 4:55 AM EST | Winter Weather Advisory | MQT | 31 hr |
| Jan 27, 10:07 AM EST | Winter Weather Advisory | MQT | 2 hr |
| Jan 28, 2:54 PM EST | Winter Storm Warning | MQT | 62 hr |
| Jan 30, 4:02 AM EST | Wind Chill Warning | MQT | 32 hr |
| Feb 2, 4:05 AM EST | Winter Weather Advisory | MQT | 33 hr |
| Feb 3, 5:08 AM EST | Winter Storm Watch | MQT | 10 hr |
| Feb 3, 3:25 PM EST | Winter Storm Warning | MQT | 24 hr |
| Feb 5, 4:45 AM EST | Winter Weather Advisory | MQT | 25 hr |
| Feb 6, 5:44 AM EST | Winter Storm Watch | MQT | 11 hr |
| Feb 6, 4:32 PM EST | Winter Storm Warning | MQT | 45 hr |
| Feb 8, 1:41 PM EST | Wind Chill Advisory | MQT | 20 hr |
| Feb 8, 1:41 PM EST | Winter Weather Advisory | MQT | 11 hr |
| Feb 11, 4:27 AM EST | Winter Storm Warning | MQT | 57 hr |
| Feb 14, 4:04 AM EST | Winter Weather Advisory | MQT | 49 hr |
| Feb 19, 3:25 PM EST | Winter Storm Warning | MQT | 31 hr |
| Feb 19, 3:25 PM EST | Winter Weather Advisory | MQT | 13 hr |
| Feb 20, 10:09 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 22, 4:10 AM EST | Winter Storm Watch | MQT | 25 hr |
| Feb 22, 3:29 PM EST | Winter Weather Advisory | MQT | 24 hr |
| Feb 23, 5:20 AM EST | Winter Storm Warning | MQT | 38 hr |
| Feb 23, 9:52 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 24, 7:47 AM EST | Blizzard Warning | MQT | 23 hr |
| Feb 24, 7:40 PM EST | Winter Weather Advisory | MQT | 16 hr |
| Mar 2, 3:22 AM EST | Wind Chill Advisory | MQT | 31 hr |
| Mar 4, 3:46 AM EST | Wind Chill Advisory | MQT | 6 hr |
| Mar 9, 3:35 AM EST | Winter Weather Advisory | MQT | 43 hr |
| Mar 12, 4:16 PM EDT | Flood Watch | MQT | 60 hr |
| Mar 14, 4:13 PM EDT | Winter Weather Advisory | MQT | 28 hr |
| Mar 27, 11:42 AM EDT | Special Weather Statement | MQT | 78 min |
| Apr 9, 4:14 AM EDT | Winter Storm Watch | MQT | 36 hr |
| Apr 10, 4:32 PM EDT | Winter Storm Warning | MQT | 33 hr |
| Apr 10, 4:32 PM EDT | Winter Weather Advisory | MQT | 42 hr |
| Apr 21, 4:11 AM EDT | Flood Watch | MQT | 49 hr |
| Apr 22, 3:52 AM EDT | Areal Flood Advisory | MQT | 10 hr |
| Apr 22, 11:16 PM EDT | River Flood Advisory | MQT | 4 days |
| Apr 23, 1:14 PM EDT | River Flood Warning | MQT | 21 hr |
| Apr 26, 11:20 PM EDT | River Flood Advisory | MQT | 57 hr |
| May 1, 8:14 AM EDT | Winter Weather Advisory | MQT | 8 hr |
| Jun 2, 3:15 AM EDT | Frost Advisory | MQT | 29 hr |
| Jun 11, 7:02 PM EDT | Special Weather Statement | MQT | 43 min |
| Jun 11, 9:00 PM EDT | Special Weather Statement | MQT | 45 min |
| Jul 4, 3:49 PM EDT | Severe Thunderstorm Warning | MQT | 26 min |
| Jul 12, 11:41 AM EDT | Special Weather Statement | MQT | 49 min |
| Jul 12, 12:28 PM EDT | Severe Thunderstorm Warning | MQT | 47 min |
| Jul 15, 7:10 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jul 15, 7:40 PM EDT | Severe Thunderstorm Warning | MQT | 50 min |
| Jul 15, 7:44 PM EDT | Special Weather Statement | MQT | 46 min |
| Jul 18, 10:04 AM EDT | Special Weather Statement | MQT | 71 min |
| Jul 18, 1:28 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 26, 7:08 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 26, 10:09 PM EDT | Special Weather Statement | MQT | 81 min |
| Jul 26, 11:05 PM EDT | Special Weather Statement | MQT | 40 min |
| Jul 27, 12:09 AM EDT | Special Weather Statement | MQT | 51 min |
| Aug 5, 10:34 AM EDT | Mesoscale Discussion | SPC | 116 min |
| Aug 5, 12:49 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Aug 7, 2:09 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 27, 1:31 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Aug 27, 1:42 PM EDT | Special Weather Statement | MQT | 48 min |
| Aug 27, 5:53 PM EDT | Special Weather Statement | MQT | 52 min |
| Sep 12, 8:58 PM EDT | Special Weather Statement | MQT | 47 min |
| Sep 15, 9:25 PM EDT | Dense Fog Advisory | MQT | 12 hr |
| Sep 20, 1:48 AM EDT | Dense Fog Advisory | MQT | 8 hr |
| Sep 24, 7:52 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Sep 24, 8:17 PM EDT | Tornado Watch | SPC | 4 hr |
| Sep 24, 8:52 PM EDT | Special Weather Statement | MQT | 38 min |
| Sep 24, 9:21 PM EDT | Severe Thunderstorm Warning | MQT | 39 min |
| Sep 24, 9:53 PM EDT | Tornado Warning | MQT | 22 min |
| Sep 24, 10:01 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Sep 24, 11:48 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Nov 5, 3:15 AM EST | Winter Weather Advisory | MQT | 70 hr |
| Nov 7, 12:01 PM EST | Winter Weather Advisory | MQT | 8 hr |
| Nov 10, 7:18 AM EST | Winter Weather Advisory | MQT | 49 hr |
| Nov 20, 3:00 PM EST | Winter Weather Advisory | MQT | 28 hr |
| Nov 25, 3:40 AM EST | Winter Storm Watch | MQT | 35 hr |
| Nov 25, 10:10 PM EST | Lakeshore Flood Advisory | MQT | 6 hr |
| Nov 26, 4:20 AM EST | Lakeshore Flood Warning | MQT | 49 hr |
| Nov 26, 4:20 AM EST | Winter Storm Warning | MQT | 45 hr |
| Nov 27, 2:43 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Nov 29, 4:02 AM EST | Winter Storm Watch | MQT | 24 hr |
| Nov 29, 4:15 PM EST | Winter Storm Warning | MQT | 51 hr |
| Nov 30, 7:55 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Dec 8, 3:59 AM EST | Winter Weather Advisory | MQT | 42 hr |
| Dec 9, 4:11 AM EST | Winter Storm Warning | MQT | 18 hr |
| Dec 10, 3:33 AM EST | Winter Weather Advisory | MQT | 42 hr |
| Dec 11, 2:57 PM EST | Winter Weather Advisory | MQT | 28 hr |
| Dec 14, 4:00 AM EST | Winter Weather Advisory | MQT | 27 hr |
| Dec 24, 3:13 PM EST | Dense Fog Advisory | MQT | 48 hr |
| Dec 25, 3:04 PM EST | Dense Fog Advisory | MQT | 24 hr |
| Dec 28, 4:20 AM EST | Winter Weather Advisory | MQT | 30 hr |
| Dec 29, 4:14 AM EST | Winter Storm Watch | MQT | 6 hr |
| Dec 29, 10:39 AM EST | Winter Storm Warning | MQT | 44 hr |
| Dec 30, 3:46 AM EST | Lakeshore Flood Advisory | MQT | 23 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 | 4 |
| Tornado Warning | 1 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 14 |
| Special Weather Statement | 13 |
| Flooding | |
| River Flood Warning | 1 |
| Flood Watch | 2 |
| Areal Flood Advisory | 1 |
| River Flood Advisory | 2 |
| Winter | |
| Blizzard Warning | 1 |
| Winter Storm Warning | 12 |
| Winter Storm Watch | 7 |
| Winter Weather Advisory | 25 |
| Cold | |
| Wind Chill Warning | 1 |
| Frost Advisory | 1 |
| Wind Chill Advisory | 4 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
| Coast and beach | |
| Lakeshore Flood Warning | 1 |
| Lakeshore Flood Advisory | 2 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20182020
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.