Alert archive / Michigan / Delta County
Weather alerts in Delta County, Michigan, 2022
58 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Delta County and its neighbors
Each county as a circle sized by its count in 2022. Tap one for its archive.
- Alerts
- 58
- Warnings
- 17
- Watches
- 7
- Advisories
- 21
- Busiest month
- June17 alerts
- Busiest day
- June 28, 20227 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Delta County, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 10 | 3 | 70% | 4 | 50% | 46 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Marquette, MI: tornado warnings | 1 | 0 | 100% | 0 | ||
| NWS Marquette, MI: severe thunderstorm warnings | 75 | 17 | 77% | 68 | 49% | 18 min |
| NWS Marquette, MI: flash flood warnings | 3 | 0 | 100% | 10 | 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 4, 4:39 AM EST | Winter Weather Advisory | MQT | 3 days |
| Jan 9, 2:47 PM EST | Wind Chill Advisory | MQT | 22 hr |
| Jan 17, 3:22 PM EST | Winter Weather Advisory | MQT | 57 hr |
| Jan 25, 2:35 PM EST | Wind Chill Advisory | MQT | 20 hr |
| Feb 5, 3:36 AM EST | Winter Weather Advisory | MQT | 23 hr |
| Feb 10, 4:24 AM EST | Winter Weather Advisory | MQT | 51 hr |
| Feb 21, 4:10 AM EST | Winter Weather Advisory | MQT | 51 hr |
| Mar 4, 4:18 AM EST | Winter Weather Advisory | MQT | 37 hr |
| Mar 13, 3:47 PM EDT | Winter Weather Advisory | MQT | 26 hr |
| Mar 22, 5:29 AM EDT | Winter Weather Advisory | MQT | 45 hr |
| Mar 29, 4:14 AM EDT | Winter Weather Advisory | MQT | 34 hr |
| Mar 30, 2:51 PM EDT | Winter Weather Advisory | MQT | 26 hr |
| Apr 13, 3:14 AM EDT | River Flood Advisory | MQT | 31 hr |
| Apr 14, 9:51 AM EDT | River Flood Warning | MQT | 50 hr |
| Apr 16, 11:52 AM EDT | River Flood Advisory | MQT | 65 hr |
| May 10, 7:54 PM EDT | Severe Thunderstorm Warning | MQT | 36 min |
| May 12, 5:49 AM EDT | Special Weather Statement | MQT | 41 min |
| May 12, 4:04 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 12, 5:07 PM EDT | Severe Thunderstorm Warning | MQT | 38 min |
| May 12, 5:54 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 15, 9:43 AM EDT | Severe Thunderstorm Warning | MQT | 47 min |
| Jun 15, 10:25 AM EDT | Severe Thunderstorm Warning | MQT | 37 min |
| Jun 15, 6:25 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jun 15, 6:51 PM EDT | Tornado Watch | SPC | 4 hr |
| Jun 15, 8:03 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 21, 3:25 AM EDT | Heat Advisory | MQT | 17 hr |
| Jun 24, 4:02 PM EDT | Special Weather Statement | MQT | 28 min |
| Jun 28, 2:10 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 28, 3:44 PM EDT | Severe Thunderstorm Warning | MQT | 31 min |
| Jun 28, 4:15 PM EDT | Severe Thunderstorm Warning | MQT | 30 min |
| Jun 28, 4:43 PM EDT | Special Weather Statement | MQT | 32 min |
| Jun 28, 5:23 PM EDT | Severe Thunderstorm Warning | MQT | 22 min |
| Jun 28, 5:44 PM EDT | Severe Thunderstorm Warning | MQT | 16 min |
| Jun 28, 5:54 PM EDT | Special Weather Statement | MQT | 36 min |
| Jun 30, 3:36 AM EDT | Severe Thunderstorm Warning | MQT | 39 min |
| Jun 30, 4:51 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 30, 7:41 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 11, 6:38 PM EDT | Severe Thunderstorm Warning | MQT | 22 min |
| Jul 11, 9:07 PM EDT | Special Weather Statement | MQT | 38 min |
| Jul 11, 9:42 PM EDT | Special Weather Statement | MQT | 33 min |
| Jul 22, 8:13 AM EDT | Special Weather Statement | MQT | 32 min |
| Aug 3, 6:07 AM EDT | Special Weather Statement | MQT | 38 min |
| Aug 3, 7:18 AM EDT | Special Weather Statement | MQT | 57 min |
| Aug 25, 9:00 AM EDT | Areal Flood Warning | MQT | 6 hr |
| Sep 22, 2:33 PM EDT | Freeze Warning | MQT | 18 hr |
| Sep 28, 2:49 PM EDT | Freeze Warning | MQT | 18 hr |
| Oct 16, 4:47 AM EDT | Winter Storm Watch | MQT | 32 hr |
| Oct 16, 4:47 AM EDT | Winter Weather Advisory | MQT | 63 hr |
| Oct 18, 4:33 AM EDT | Wind Advisory | MQT | 15 hr |
| Nov 4, 5:56 PM EDT | Lakeshore Flood Warning | MQT | 35 hr |
| Nov 5, 3:05 AM EDT | Wind Advisory | MQT | 23 hr |
| Nov 5, 3:22 PM EDT | High Wind Warning | MQT | 7 hr |
| Dec 12, 4:33 PM EST | Winter Storm Watch | MQT | 36 hr |
| Dec 13, 5:18 AM EST | Lakeshore Flood Advisory | MQT | 60 hr |
| Dec 14, 4:03 AM EST | Winter Weather Advisory | MQT | 35 hr |
| Dec 20, 3:20 PM EST | Winter Storm Watch | MQT | 37 hr |
| Dec 21, 4:48 AM EST | Winter Weather Advisory | MQT | 44 hr |
| Dec 22, 4:11 AM EST | Winter Storm Warning | MQT | 69 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 | 4 |
| Special Weather Statement | 9 |
| Flooding | |
| Areal Flood Warning | 1 |
| River Flood Warning | 1 |
| River Flood Advisory | 2 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 3 |
| Winter Weather Advisory | 13 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 2 |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 2 |
| Coast and beach | |
| Lakeshore Flood Warning | 1 |
| Lakeshore Flood Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20212023
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.