Alert archive / Michigan / Eaton County
Weather alerts in Eaton County, Michigan, 2017
81 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Eaton County and its neighbors
Each county as a circle sized by its count in 2017. Tap one for its archive.
- Alerts
- 81
- Warnings
- 8
- Watches
- 12
- Advisories
- 33
- Busiest month
- April11 alerts
- Busiest day
- February 24, 20174 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Eaton County, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 3 | 1 | 67% | 2 | 100% | 14 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Grand Rapids, MI: tornado warnings | 1 | 1 | 0% | 2 | 50% | 1 min |
| NWS Grand Rapids, MI: severe thunderstorm warnings | 29 | 12 | 59% | 48 | 83% | 19 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, 10:01 AM EST | Dense Fog Advisory | GRR | 5 hr |
| Jan 9, 12:45 PM EST | Winter Weather Advisory | GRR | 28 hr |
| Jan 10, 3:30 AM EST | High Wind Watch | GRR | 11 hr |
| Jan 10, 2:24 PM EST | Wind Advisory | GRR | 13 hr |
| Jan 12, 4:05 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 12, 6:22 AM EST | Freezing Rain Advisory | GRR | 7 hr |
| Jan 16, 3:34 AM EST | Freezing Rain Advisory | GRR | 24 hr |
| Jan 20, 4:28 PM EST | Dense Fog Advisory | GRR | 14 hr |
| Jan 21, 4:09 PM EST | Dense Fog Advisory | GRR | 36 hr |
| Jan 30, 3:43 AM EST | Winter Weather Advisory | GRR | 30 hr |
| Feb 7, 3:27 AM EST | Dense Fog Advisory | GRR | 7 hr |
| Feb 12, 1:58 AM EST | Wind Advisory | GRR | 18 hr |
| Feb 14, 12:06 PM EST | Winter Weather Advisory | GRR | 15 hr |
| Feb 21, 8:36 PM EST | Dense Fog Advisory | GRR | 12 hr |
| Feb 24, 8:35 AM EST | Special Weather Statement | GRR | 55 min |
| Feb 24, 3:44 PM EST | Severe Thunderstorm Watch | SPC | 6 hr |
| Feb 24, 5:20 PM EST | Special Weather Statement | GRR | 55 min |
| Feb 24, 5:56 PM EST | Mesoscale Discussion | SPC | 94 min |
| Feb 28, 7:37 PM EST | Severe Thunderstorm Watch | SPC | 8 hr |
| Mar 7, 3:30 AM EST | High Wind Watch | GRR | 11 hr |
| Mar 7, 3:38 AM EST | Special Weather Statement | GRR | 3 hr |
| Mar 7, 2:51 PM EST | High Wind Warning | GRR | 28 hr |
| Mar 12, 1:57 AM EST | Winter Weather Advisory | GRR | 40 hr |
| Mar 16, 3:36 PM EDT | Winter Weather Advisory | GRR | 24 hr |
| Mar 17, 4:05 AM EDT | Winter Weather Advisory | GRR | 11 hr |
| Apr 5, 11:47 AM EDT | River Flood Advisory | GRR | 5 days |
| Apr 5, 3:47 PM EDT | Winter Weather Advisory | GRR | 24 hr |
| Apr 9, 10:34 PM EDT | River Flood Advisory | GRR | 36 hr |
| Apr 10, 2:48 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Apr 10, 7:22 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Apr 10, 9:58 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Apr 19, 2:50 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Apr 20, 5:30 AM EDT | Special Weather Statement | GRR | 30 min |
| Apr 20, 1:36 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Apr 20, 4:31 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Apr 28, 4:03 PM EDT | Flood Watch | GRR | 63 hr |
| May 6, 2:55 PM EDT | Freeze Watch | GRR | 13 hr |
| May 7, 3:41 AM EDT | Freeze Warning | GRR | 29 hr |
| May 8, 9:53 AM EDT | Freeze Warning | GRR | 22 hr |
| May 18, 3:15 AM EDT | Wind Advisory | GRR | 17 hr |
| May 21, 12:53 AM EDT | Areal Flood Advisory | GRR | 5 hr |
| May 28, 1:16 PM EDT | Mesoscale Discussion | SPC | 119 min |
| May 28, 1:56 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 14, 4:02 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jun 14, 5:59 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jun 19, 1:59 PM EDT | Special Weather Statement | GRR | 91 min |
| Jun 22, 9:53 PM EDT | Flood Watch | GRR | 6 hr |
| Jun 26, 5:17 PM EDT | Special Weather Statement | GRR | 3 hr |
| Jul 7, 3:35 AM EDT | Mesoscale Discussion | SPC | 115 min |
| Jul 7, 3:42 AM EDT | Severe Thunderstorm Warning | GRR | 33 min |
| Jul 7, 4:10 AM EDT | Severe Thunderstorm Warning | GRR | 50 min |
| Jul 12, 1:09 AM EDT | Flood Watch | GRR | 29 hr |
| Jul 13, 3:19 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 13, 4:22 AM EDT | Severe Thunderstorm Warning | GRR | 53 min |
| Aug 3, 5:33 PM EDT | Special Weather Statement | GRR | 42 min |
| Aug 17, 1:46 PM EDT | Special Weather Statement | GRR | 89 min |
| Aug 29, 7:22 AM EDT | Dense Fog Advisory | GRR | 3 hr |
| Aug 29, 3:30 PM EDT | Dense Fog Advisory | GRR | 19 hr |
| Sep 14, 2:34 AM EDT | Dense Fog Advisory | GRR | 6 hr |
| Sep 17, 5:08 PM EDT | Special Weather Statement | GRR | 52 min |
| Oct 7, 7:34 PM EDT | Special Weather Statement | GRR | 56 min |
| Oct 7, 8:32 PM EDT | Special Weather Statement | GRR | 58 min |
| Oct 14, 3:14 AM EDT | Flood Watch | GRR | 24 hr |
| Oct 14, 11:37 AM EDT | Wind Advisory | GRR | 28 hr |
| Oct 14, 5:08 PM EDT | Areal Flood Advisory | GRR | 24 hr |
| Oct 14, 9:31 PM EDT | Areal Flood Warning | GRR | 24 hr |
| Oct 22, 3:27 AM EDT | Flood Watch | GRR | 36 hr |
| Oct 23, 8:22 PM EDT | Areal Flood Advisory | GRR | 36 hr |
| Nov 12, 4:26 AM EST | Special Weather Statement | GRR | 109 min |
| Nov 12, 7:44 AM EST | Special Weather Statement | GRR | 106 min |
| Nov 14, 2:52 AM EST | Dense Fog Advisory | GRR | 6 hr |
| Dec 4, 3:51 PM EST | Wind Advisory | GRR | 27 hr |
| Dec 4, 10:52 PM EST | Special Weather Statement | GRR | 83 min |
| Dec 10, 9:50 PM EST | Special Weather Statement | GRR | 115 min |
| Dec 11, 3:41 AM EST | Winter Weather Advisory | GRR | 30 hr |
| Dec 12, 3:45 PM EST | Winter Weather Advisory | GRR | 31 hr |
| Dec 13, 3:51 AM EST | Winter Storm Warning | GRR | 19 hr |
| Dec 15, 9:16 PM EST | Winter Weather Advisory | GRR | 13 hr |
| Dec 21, 11:41 AM EST | Winter Weather Advisory | GRR | 24 hr |
| Dec 23, 3:44 PM EST | Winter Weather Advisory | GRR | 63 hr |
| Dec 25, 1:52 PM EST | Special Weather Statement | GRR | 3 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 | 3 |
| Severe Thunderstorm Watch | 4 |
| Mesoscale Discussion | 12 |
| Special Weather Statement | 16 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flood Watch | 5 |
| Areal Flood Advisory | 3 |
| River Flood Advisory | 2 |
| Winter | |
| Winter Storm Warning | 1 |
| Freezing Rain Advisory | 2 |
| Winter Weather Advisory | 12 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 1 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 2 |
| Wind Advisory | 5 |
| Fog and smoke | |
| Dense Fog Advisory | 9 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20162018
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.