Alert archive / Michigan / Mecosta County
Weather alerts in Mecosta County, Michigan, 2013
105 weather alerts in 2013, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Mecosta County and its neighbors
Each county as a circle sized by its count in 2013. Tap one for its archive.
- Alerts
- 105
- Warnings
- 10
- Watches
- 16
- Advisories
- 46
- Busiest month
- April17 alerts
- Busiest day
- November 17, 20137 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Mecosta County, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 5 | 4 | 20% | 5 | 40% | 42 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Grand Rapids, MI: tornado warnings | 4 | 0 | 100% | 2 | 0% | |
| NWS Grand Rapids, MI: severe thunderstorm warnings | 75 | 36 | 52% | 133 | 65% | 26 min |
| NWS Grand Rapids, MI: flash flood warnings | 3 | 2 | 33% | 6 | 100% | 104 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 12, 3:25 PM EST | Winter Weather Advisory | GRR | 16 hr |
| Jan 12, 10:13 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 16, 6:56 PM EST | Flood Watch | GRR | 41 hr |
| Jan 19, 3:47 PM EST | Wind Advisory | GRR | 15 hr |
| Jan 21, 3:57 PM EST | Wind Chill Advisory | GRR | 19 hr |
| Jan 22, 4:07 PM EST | Wind Chill Advisory | GRR | 11 hr |
| Jan 26, 3:37 PM EST | Winter Weather Advisory | GRR | 45 hr |
| Jan 27, 6:28 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 28, 3:29 AM EST | Flood Watch | GRR | 54 hr |
| Jan 29, 10:46 PM EST | River Flood Advisory | GRR | 48 hr |
| Jan 30, 1:08 PM EST | Lake Effect Snow Advisory | GRR | 39 hr |
| Jan 30, 2:20 PM EST | Areal Flood Warning | GRR | 5 days |
| Feb 1, 4:08 AM EST | Lake Effect Snow Advisory | GRR | 33 hr |
| Feb 6, 2:54 AM EST | Winter Storm Watch | GRR | 12 hr |
| Feb 6, 3:09 PM EST | Winter Storm Warning | GRR | 40 hr |
| Feb 10, 4:12 PM EST | Wind Advisory | GRR | 32 hr |
| Feb 18, 4:17 AM EST | Winter Weather Advisory | GRR | 59 hr |
| Feb 21, 3:42 PM EST | Winter Weather Advisory | GRR | 21 hr |
| Feb 24, 3:15 PM EST | Winter Storm Watch | GRR | 24 hr |
| Feb 25, 6:00 AM EST | Special Weather Statement | GRR | 2 hr |
| Feb 25, 3:08 PM EST | Winter Weather Advisory | GRR | 43 hr |
| Apr 9, 11:23 PM EDT | River Flood Advisory | GRR | 4 days |
| Apr 10, 3:38 AM EDT | Winter Weather Advisory | GRR | 12 hr |
| Apr 10, 9:05 AM EDT | Special Weather Statement | GRR | 55 min |
| Apr 10, 3:26 PM EDT | Freezing Rain Advisory | GRR | 15 hr |
| Apr 11, 5:32 AM EDT | Special Weather Statement | GRR | 118 min |
| Apr 11, 2:49 PM EDT | Winter Weather Advisory | GRR | 17 hr |
| Apr 11, 8:38 PM EDT | Areal Flood Advisory | GRR | 24 hr |
| Apr 16, 3:18 PM EDT | Flood Watch | GRR | 63 hr |
| Apr 17, 9:38 PM EDT | River Flood Warning | GRR | 24 hr |
| Apr 18, 7:34 AM EDT | Areal Flood Advisory | GRR | 3 days |
| Apr 18, 9:48 AM EDT | Mesoscale Discussion | SPC | 27 min |
| Apr 18, 10:06 AM EDT | Tornado Watch | SPC | 6 hr |
| Apr 18, 3:18 PM EDT | Wind Advisory | GRR | 29 hr |
| Apr 18, 9:43 PM EDT | River Flood Advisory | GRR | 62 hr |
| Apr 29, 2:43 AM EDT | Dense Fog Advisory | GRR | 7 hr |
| Apr 30, 8:28 AM EDT | Special Weather Statement | GRR | 62 min |
| Apr 30, 9:32 AM EDT | Special Weather Statement | GRR | 88 min |
| May 11, 2:31 PM EDT | Special Weather Statement | GRR | 89 min |
| May 11, 3:31 PM EDT | Freeze Watch | GRR | 12 hr |
| May 12, 3:29 AM EDT | Freeze Warning | GRR | 29 hr |
| May 20, 12:34 PM EDT | Mesoscale Discussion | SPC | 56 min |
| May 20, 12:58 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 20, 1:15 PM EDT | Special Weather Statement | GRR | 45 min |
| May 20, 1:50 PM EDT | Severe Thunderstorm Warning | GRR | 40 min |
| May 20, 2:31 PM EDT | Severe Thunderstorm Warning | GRR | 44 min |
| May 22, 12:41 PM EDT | Areal Flood Advisory | GRR | 6 hr |
| May 23, 3:37 AM EDT | Frost Advisory | GRR | 27 hr |
| May 23, 10:41 AM EDT | River Flood Advisory | GRR | 25 hr |
| May 24, 3:43 PM EDT | Frost Advisory | GRR | 16 hr |
| May 25, 3:47 PM EDT | Frost Advisory | GRR | 16 hr |
| May 30, 4:17 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Jun 2, 11:29 AM EDT | Frost Advisory | GRR | 20 hr |
| Jun 11, 6:44 AM EDT | Dense Fog Advisory | GRR | 3 hr |
| Jun 11, 5:34 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jun 12, 4:23 PM EDT | Special Weather Statement | GRR | 37 min |
| Jun 12, 8:03 PM EDT | Special Weather Statement | GRR | |
| Jun 12, 8:04 PM EDT | Special Weather Statement | GRR | |
| Jun 12, 8:06 PM EDT | Special Weather Statement | GRR | 114 min |
| Jun 17, 2:03 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 26, 7:20 PM EDT | Areal Flood Advisory | GRR | 24 hr |
| Jun 28, 4:32 PM EDT | Special Weather Statement | GRR | 58 min |
| Jul 3, 8:34 PM EDT | Special Weather Statement | GRR | 56 min |
| Jul 15, 3:40 PM EDT | Heat Advisory | GRR | 4 days |
| Jul 18, 1:04 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Jul 19, 2:40 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 19, 5:48 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Jul 19, 9:30 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 2, 2:01 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Aug 3, 4:17 AM EDT | Dense Fog Advisory | GRR | 5 hr |
| Aug 7, 2:12 AM EDT | Mesoscale Discussion | SPC | 63 min |
| Aug 7, 2:29 AM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 7, 3:20 AM EDT | Severe Thunderstorm Warning | GRR | 55 min |
| Aug 27, 4:18 AM EDT | Special Weather Statement | GRR | 57 min |
| Aug 27, 3:15 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 27, 4:52 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 27, 7:14 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Aug 27, 9:47 PM EDT | Areal Flood Advisory | GRR | 6 hr |
| Aug 30, 1:24 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 30, 3:07 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 30, 6:14 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Sep 1, 5:52 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Sep 13, 3:30 AM EDT | Frost Advisory | GRR | 30 hr |
| Sep 16, 3:01 PM EDT | Frost Advisory | GRR | 18 hr |
| Sep 22, 4:10 AM EDT | Frost Advisory | GRR | 29 hr |
| Sep 23, 3:38 PM EDT | Frost Advisory | GRR | 17 hr |
| Sep 26, 4:46 AM EDT | Dense Fog Advisory | GRR | 5 hr |
| Oct 5, 12:17 PM EDT | Flood Watch | GRR | 22 hr |
| Oct 31, 3:34 PM EDT | Wind Advisory | GRR | 16 hr |
| Nov 17, 3:29 AM EST | High Wind Warning | GRR | 24 hr |
| Nov 17, 11:01 AM EST | Mesoscale Discussion | SPC | 119 min |
| Nov 17, 11:20 AM EST | Tornado Watch | SPC | 9 hr |
| Nov 17, 2:13 PM EST | Mesoscale Discussion | SPC | 77 min |
| Nov 17, 2:45 PM EST | Severe Thunderstorm Warning | GRR | 45 min |
| Nov 17, 3:29 PM EST | Severe Thunderstorm Warning | GRR | 61 min |
| Nov 17, 4:21 PM EST | Areal Flood Advisory | GRR | 6 hr |
| Nov 25, 9:11 PM EST | Freezing Rain Advisory | GRR | 7 hr |
| Nov 27, 3:14 PM EST | Winter Weather Advisory | GRR | 31 hr |
| Nov 28, 10:32 AM EST | Flood Watch | GRR | 51 hr |
| Dec 4, 5:03 AM EST | Dense Fog Advisory | GRR | 7 hr |
| Dec 13, 3:44 AM EST | Winter Weather Advisory | GRR | 62 hr |
| Dec 19, 3:17 AM EST | Winter Weather Advisory | GRR | 40 hr |
| Dec 20, 3:30 PM EST | Winter Storm Watch | GRR | 12 hr |
| Dec 21, 3:30 AM EST | Winter Weather Advisory | GRR | 35 hr |
| Dec 24, 3:25 PM EST | Winter Weather Advisory | GRR | 53 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 archive20122014
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.