Alert archive / Michigan / Allegan County
Weather alerts in Allegan County, Michigan, 2014
133 weather alerts in 2014, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Allegan County and its neighbors
Each county as a circle sized by its count in 2014. Tap one for its archive.
- Alerts
- 133
- Warnings
- 18
- Watches
- 12
- Advisories
- 52
- Busiest month
- January20 alerts
- Busiest day
- May 12, 20146 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Allegan County, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 9 | 7 | 22% | 7 | 86% | 30 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Grand Rapids, MI: tornado warnings | 1 | 0 | 100% | 4 | 0% | |
| NWS Grand Rapids, MI: severe thunderstorm warnings | 116 | 61 | 47% | 198 | 65% | 21 min |
| NWS Grand Rapids, MI: flash flood warnings | 5 | 3 | 40% | 7 | 100% | 350 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, 12:50 PM EST | Wind Chill Watch | GRR | 39 hr |
| Jan 3, 12:50 PM EST | Winter Storm Watch | GRR | 15 hr |
| Jan 4, 3:36 AM EST | Winter Storm Warning | GRR | 4 days |
| Jan 4, 3:36 AM EST | Winter Weather Advisory | GRR | 4 days |
| Jan 5, 3:40 AM EST | Wind Chill Warning | GRR | 60 hr |
| Jan 7, 3:57 PM EST | Winter Weather Advisory | GRR | 11 hr |
| Jan 10, 9:41 AM EST | Dense Fog Advisory | GRR | 4 hr |
| Jan 12, 9:20 PM EST | River Flood Advisory | GRR | 4 days |
| Jan 13, 3:30 PM EST | Winter Weather Advisory | GRR | 44 hr |
| Jan 22, 3:41 AM EST | Winter Weather Advisory | GRR | 31 hr |
| Jan 22, 5:59 PM EST | Winter Storm Warning | GRR | 16 hr |
| Jan 23, 4:05 AM EST | Wind Chill Advisory | GRR | 11 hr |
| Jan 23, 4:05 AM EST | Winter Storm Watch | GRR | 11 hr |
| Jan 23, 2:54 PM EST | Winter Storm Warning | GRR | 48 hr |
| Jan 23, 2:54 PM EST | Winter Weather Advisory | GRR | 6 days |
| Jan 26, 3:53 PM EST | Wind Chill Watch | GRR | 11 hr |
| Jan 27, 2:51 AM EST | Wind Chill Warning | GRR | 55 hr |
| Jan 29, 4:01 PM EST | Winter Weather Advisory | GRR | 36 hr |
| Jan 30, 3:10 PM EST | Winter Storm Watch | GRR | 25 hr |
| Jan 31, 3:51 PM EST | Winter Weather Advisory | GRR | 29 hr |
| Feb 4, 3:30 AM EST | Winter Weather Advisory | GRR | 33 hr |
| Feb 6, 3:24 PM EST | Wind Chill Advisory | GRR | 19 hr |
| Feb 16, 2:55 PM EST | Winter Weather Advisory | GRR | 37 hr |
| Feb 17, 12:30 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 17, 4:57 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 19, 3:43 PM EST | Winter Weather Advisory | GRR | 51 hr |
| Feb 24, 3:53 PM EST | Winter Weather Advisory | GRR | 11 hr |
| Feb 26, 3:17 AM EST | Winter Weather Advisory | GRR | 36 hr |
| Feb 26, 3:45 PM EST | Winter Storm Warning | GRR | 23 hr |
| Feb 27, 3:07 PM EST | Wind Chill Advisory | GRR | 20 hr |
| Mar 1, 1:23 PM EST | Winter Weather Advisory | GRR | 15 hr |
| Mar 2, 10:43 PM EST | Wind Chill Advisory | GRR | 11 hr |
| Mar 11, 2:58 PM EDT | Winter Weather Advisory | GRR | 23 hr |
| Mar 23, 11:08 AM EDT | River Flood Advisory | GRR | 51 hr |
| Mar 30, 10:07 PM EDT | River Flood Advisory | GRR | 16 hr |
| Apr 3, 5:09 PM EDT | River Flood Advisory | GRR | 5 days |
| Apr 4, 3:44 AM EDT | Wind Advisory | GRR | 18 hr |
| Apr 11, 3:59 PM EDT | Flood Watch | GRR | 64 hr |
| Apr 13, 5:38 AM EDT | Special Weather Statement | GRR | 67 min |
| Apr 13, 8:41 PM EDT | Special Weather Statement | GRR | 94 min |
| Apr 27, 3:34 PM EDT | Wind Advisory | GRR | 28 hr |
| Apr 29, 12:47 PM EDT | Mesoscale Discussion | SPC | 88 min |
| May 7, 3:04 AM EDT | Special Weather Statement | GRR | 56 min |
| May 12, 8:29 AM EDT | Special Weather Statement | GRR | 46 min |
| May 12, 11:46 AM EDT | Special Weather Statement | GRR | 59 min |
| May 12, 2:29 PM EDT | Mesoscale Discussion | SPC | 91 min |
| May 12, 2:41 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 12, 4:44 PM EDT | Mesoscale Discussion | SPC | 61 min |
| May 12, 7:05 PM EDT | Mesoscale Discussion | SPC | 55 min |
| May 15, 3:39 PM EDT | Frost Advisory | GRR | 16 hr |
| May 16, 2:50 PM EDT | Frost Advisory | GRR | 17 hr |
| May 20, 10:47 PM EDT | Severe Thunderstorm Warning | GRR | 58 min |
| May 21, 12:02 AM EDT | Severe Thunderstorm Warning | GRR | 58 min |
| May 21, 12:23 AM EDT | Mesoscale Discussion | SPC | 97 min |
| May 21, 12:37 AM EDT | Areal Flood Advisory | GRR | 10 hr |
| May 21, 2:07 AM EDT | Special Weather Statement | GRR | 53 min |
| May 21, 2:56 AM EDT | Mesoscale Discussion | SPC | 94 min |
| Jun 11, 5:29 PM EDT | Areal Flood Advisory | GRR | 5 hr |
| Jun 17, 5:58 AM EDT | Mesoscale Discussion | SPC | 62 min |
| Jun 18, 1:59 AM EDT | Mesoscale Discussion | SPC | 91 min |
| Jun 18, 2:42 AM EDT | Flash Flood Watch | GRR | 19 hr |
| Jun 18, 11:32 AM EDT | Mesoscale Discussion | SPC | 118 min |
| Jun 18, 12:01 PM EDT | Special Weather Statement | GRR | 3 hr |
| Jun 23, 6:43 PM EDT | Areal Flood Advisory | GRR | 6 hr |
| Jun 25, 2:58 AM EDT | Dense Fog Advisory | GRR | 7 hr |
| Jun 25, 6:40 PM EDT | Severe Thunderstorm Warning | GRR | 50 min |
| Jun 30, 2:41 AM EDT | Mesoscale Discussion | SPC | 64 min |
| Jun 30, 9:43 AM EDT | Beach Hazards Statement | GRR | 38 hr |
| Jun 30, 7:47 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jun 30, 8:23 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 2, 2:15 PM EDT | Beach Hazards Statement | GRR | 8 hr |
| Jul 5, 4:10 PM EDT | Beach Hazards Statement | GRR | 43 hr |
| Jul 6, 7:41 PM EDT | Special Weather Statement | GRR | 64 min |
| Jul 7, 12:11 AM EDT | Mesoscale Discussion | SPC | 64 min |
| Jul 7, 1:39 AM EDT | Special Weather Statement | GRR | 66 min |
| Jul 12, 11:32 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jul 13, 2:01 AM EDT | Special Weather Statement | GRR | 59 min |
| Jul 14, 3:27 AM EDT | Beach Hazards Statement | GRR | 41 hr |
| Jul 22, 12:07 PM EDT | Beach Hazards Statement | GRR | 39 hr |
| Jul 22, 10:42 PM EDT | Special Weather Statement | GRR | 2 hr |
| Jul 22, 11:06 PM EDT | Severe Thunderstorm Warning | GRR | 84 min |
| Jul 27, 3:48 AM EDT | Beach Hazards Statement | GRR | 43 hr |
| Jul 27, 6:03 AM EDT | Dense Fog Advisory | GRR | 3 hr |
| Jul 27, 1:39 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 27, 3:54 PM EDT | Severe Thunderstorm Warning | GRR | 51 min |
| Aug 11, 7:23 AM EDT | Areal Flood Advisory | GRR | 6 hr |
| Aug 11, 11:44 AM EDT | Beach Hazards Statement | GRR | 40 hr |
| Aug 19, 1:09 PM EDT | Special Weather Statement | GRR | 2 hr |
| Aug 19, 1:52 PM EDT | Severe Thunderstorm Warning | GRR | 53 min |
| Aug 19, 1:58 PM EDT | Areal Flood Advisory | GRR | 3 hr |
| Aug 19, 2:35 PM EDT | Severe Thunderstorm Warning | GRR | 55 min |
| Aug 19, 2:49 PM EDT | Severe Thunderstorm Warning | GRR | 56 min |
| Aug 20, 3:07 AM EDT | Dense Fog Advisory | GRR | 6 hr |
| Aug 25, 1:11 PM EDT | Special Weather Statement | GRR | 109 min |
| Aug 26, 12:46 PM EDT | Special Weather Statement | GRR | 59 min |
| Aug 29, 3:45 AM EDT | Beach Hazards Statement | GRR | 42 hr |
| Aug 30, 1:45 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 31, 3:19 PM EDT | Beach Hazards Statement | GRR | 31 hr |
| Sep 4, 4:00 AM EDT | Beach Hazards Statement | GRR | 31 hr |
| Sep 4, 6:58 AM EDT | Special Weather Statement | GRR | 62 min |
| Sep 5, 2:19 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Sep 5, 3:02 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 5, 5:00 PM EDT | Special Weather Statement | GRR | 90 min |
| Sep 5, 5:19 PM EDT | Severe Thunderstorm Warning | GRR | 56 min |
| Sep 5, 6:36 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Sep 6, 4:26 AM EDT | Beach Hazards Statement | GRR | 11 hr |
| Sep 16, 3:11 AM EDT | Dense Fog Advisory | GRR | 8 hr |
| Sep 21, 1:41 AM EDT | Special Weather Statement | GRR | 94 min |
| Sep 21, 1:55 AM EDT | Mesoscale Discussion | SPC | 95 min |
| Sep 21, 2:31 AM EDT | Special Weather Statement | GRR | 59 min |
| Oct 3, 9:10 AM EDT | Wind Advisory | GRR | 5 hr |
| Oct 3, 10:56 AM EDT | Areal Flood Advisory | GRR | 6 hr |
| Oct 9, 3:00 PM EDT | Frost Advisory | GRR | 17 hr |
| Oct 10, 1:46 PM EDT | Freeze Warning | GRR | 19 hr |
| Oct 11, 2:23 PM EDT | Frost Advisory | GRR | 19 hr |
| Oct 13, 8:26 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Oct 13, 9:39 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Oct 16, 5:22 AM EDT | Dense Fog Advisory | GRR | 7 hr |
| Oct 18, 3:45 PM EDT | Freeze Warning | GRR | 17 hr |
| Oct 23, 5:35 AM EDT | Dense Fog Advisory | GRR | 4 hr |
| Oct 30, 3:53 PM EDT | Wind Advisory | GRR | 26 hr |
| Nov 12, 2:58 AM EST | Winter Weather Advisory | GRR | 61 hr |
| Nov 14, 3:29 PM EST | Winter Weather Advisory | GRR | 47 hr |
| Nov 16, 2:47 PM EST | Winter Storm Watch | GRR | 12 hr |
| Nov 17, 3:16 AM EST | Winter Storm Warning | GRR | 42 hr |
| Nov 18, 3:02 PM EST | Winter Weather Advisory | GRR | 60 hr |
| Nov 21, 11:28 AM EST | Freezing Rain Advisory | GRR | 24 hr |
| Nov 22, 2:07 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Nov 24, 2:56 AM EST | Wind Advisory | GRR | 19 hr |
| Nov 26, 8:49 AM EST | River Flood Advisory | GRR | 40 hr |
| Nov 27, 11:58 AM EST | Lake Effect Snow Advisory | GRR | 9 hr |
| Nov 28, 9:03 PM EST | Winter Weather Advisory | GRR | 6 hr |
| Dec 24, 3:11 AM EST | Winter Weather Advisory | GRR | 21 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 | 9 |
| Severe Thunderstorm Watch | 4 |
| Mesoscale Discussion | 22 |
| Special Weather Statement | 18 |
| Flooding | |
| Flash Flood Watch | 1 |
| Flood Watch | 1 |
| Areal Flood Advisory | 6 |
| River Flood Advisory | 5 |
| Winter | |
| Winter Storm Warning | 5 |
| Winter Storm Watch | 4 |
| Freezing Rain Advisory | 1 |
| Lake Effect Snow Advisory | 1 |
| Winter Weather Advisory | 19 |
| Cold | |
| Freeze Warning | 2 |
| Wind Chill Warning | 2 |
| Wind Chill Watch | 2 |
| Frost Advisory | 4 |
| Wind Chill Advisory | 4 |
| Wind and dust | |
| Wind Advisory | 5 |
| Fog and smoke | |
| Dense Fog Advisory | 7 |
| Coast and beach | |
| Beach Hazards Statement | 11 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20132015
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.