Alert archive / Michigan / Kalamazoo County
Weather alerts in Kalamazoo County, Michigan, 2017
111 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Kalamazoo County and its neighbors
Each county as a circle sized by its count in 2017. Tap one for its archive.
- Alerts
- 111
- Warnings
- 19
- Watches
- 14
- Advisories
- 36
- Busiest month
- April21 alerts
- Busiest day
- March 1, 20176 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Kalamazoo County, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 2 | 0 | 100% | 0 | ||
| 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, 3:38 AM EST | Winter Weather Advisory | GRR | 3 days |
| 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 11, 5:16 PM EST | Special Weather Statement | GRR | 89 min |
| 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, 9:33 PM EST | River Flood Warning | GRR | 63 hr |
| Jan 16, 9:41 PM EST | River Flood Advisory | GRR | 36 hr |
| Jan 17, 4:07 AM EST | Special Weather Statement | GRR | 113 min |
| 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 24, 7:35 AM EST | Special Weather Statement | GRR | 85 min |
| Feb 24, 3:07 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Feb 24, 3:44 PM EST | Severe Thunderstorm Watch | SPC | 6 hr |
| Feb 24, 4:33 PM EST | Special Weather Statement | GRR | 42 min |
| Feb 24, 5:20 PM EST | Special Weather Statement | GRR | 55 min |
| Feb 28, 7:00 PM EST | Mesoscale Discussion | SPC | 90 min |
| Feb 28, 7:37 PM EST | Severe Thunderstorm Watch | SPC | 8 hr |
| Feb 28, 9:20 PM EST | River Flood Watch | GRR | 64 hr |
| Mar 1, 12:52 AM EST | Mesoscale Discussion | SPC | 53 min |
| Mar 1, 1:44 AM EST | Mesoscale Discussion | SPC | 61 min |
| Mar 1, 11:45 AM EST | River Flood Warning | GRR | 61 hr |
| Mar 4, 10:39 AM EST | River Flood Warning | GRR | 3 days |
| Mar 7, 1:22 AM EST | Special Weather Statement | GRR | 3 hr |
| Mar 7, 3:30 AM EST | High Wind Watch | GRR | 11 hr |
| Mar 7, 4:01 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 |
| Mar 30, 4:27 PM EDT | River Flood Warning | GRR | 12 days |
| Mar 30, 5:09 PM EDT | Special Weather Statement | GRR | 36 min |
| Apr 3, 11:10 PM EDT | River Flood Advisory | GRR | 5 days |
| Apr 5, 3:47 PM EDT | Winter Weather Advisory | GRR | 24 hr |
| Apr 8, 3:10 PM EDT | River Flood Warning | GRR | 58 hr |
| Apr 10, 12:57 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 10, 2:48 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Apr 10, 4:25 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 10, 7:22 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Apr 10, 9:58 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Apr 11, 12:31 AM EDT | River Flood Advisory | GRR | 3 days |
| Apr 11, 10:25 AM EDT | River Flood Advisory | GRR | 36 hr |
| Apr 11, 11:31 PM EDT | River Flood Warning | GRR | 26 hr |
| Apr 15, 9:44 AM EDT | River Flood Warning | GRR | 4 days |
| Apr 19, 2:50 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Apr 20, 1:36 PM EDT | Severe Thunderstorm Warning | GRR | 39 min |
| Apr 20, 1:36 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Apr 20, 2:08 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 20, 9:34 PM EDT | River Flood Warning | GRR | 4 days |
| Apr 24, 10:15 PM EDT | River Flood Advisory | GRR | 57 hr |
| Apr 28, 11:51 AM EDT | River Flood Watch | GRR | 36 hr |
| Apr 28, 4:03 PM EDT | Flood Watch | GRR | 63 hr |
| Apr 29, 10:36 PM EDT | River Flood Warning | GRR | 8 days |
| May 1, 6:52 AM EDT | Special Weather Statement | GRR | 53 min |
| 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 15, 9:21 PM EDT | Special Weather Statement | GRR | 54 min |
| May 18, 3:15 AM EDT | Wind Advisory | GRR | 17 hr |
| May 21, 12:53 AM EDT | Areal Flood Advisory | GRR | 5 hr |
| May 21, 9:15 AM EDT | River Flood Warning | GRR | 5 days |
| May 24, 4:42 PM EDT | Special Weather Statement | GRR | 48 min |
| May 28, 1:16 PM EDT | Mesoscale Discussion | SPC | 119 min |
| May 28, 1:56 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 13, 6:22 PM EDT | Special Weather Statement | GRR | 53 min |
| Jun 14, 4:02 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jun 14, 5:59 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jun 14, 7:25 PM EDT | Special Weather Statement | GRR | 65 min |
| Jun 29, 2:19 AM EDT | Special Weather Statement | GRR | 56 min |
| Jul 7, 3:42 AM EDT | Severe Thunderstorm Warning | GRR | 33 min |
| Jul 7, 3:56 AM EDT | Special Weather Statement | GRR | 49 min |
| Jul 10, 6:35 AM EDT | Special Weather Statement | GRR | 25 min |
| Jul 12, 1:09 AM EDT | Flood Watch | GRR | 29 hr |
| Jul 12, 6:07 AM EDT | Special Weather Statement | GRR | 53 min |
| Jul 12, 9:33 AM EDT | Mesoscale Discussion | SPC | 117 min |
| Jul 12, 12:13 PM EDT | Special Weather Statement | GRR | 92 min |
| Jul 13, 3:19 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 3, 11:20 PM EDT | Special Weather Statement | GRR | 115 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 |
| Sep 21, 4:08 PM EDT | Special Weather Statement | GRR | 67 min |
| Oct 7, 5:40 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 7, 7:34 PM EDT | Special Weather Statement | GRR | 56 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, 1:16 PM EDT | Areal Flood Advisory | GRR | 24 hr |
| Oct 14, 4:06 PM EDT | Areal Flood Warning | GRR | 65 hr |
| Oct 14, 9:48 PM EDT | River Flood Warning | GRR | 58 hr |
| Oct 15, 7:51 AM EDT | River Flood Advisory | GRR | 36 hr |
| Oct 22, 3:27 AM EDT | Flood Watch | GRR | 36 hr |
| Oct 23, 11:20 AM EDT | River Flood Warning | GRR | 4 days |
| Oct 23, 2:36 PM EDT | Areal Flood Advisory | GRR | 42 hr |
| 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 5, 3:15 PM EST | Winter Weather Advisory | GRR | 49 hr |
| Dec 11, 3:41 AM EST | Winter Storm Warning | GRR | 48 hr |
| 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 23, 3:44 PM EST | Winter Weather Advisory | GRR | 63 hr |
| Dec 25, 1:52 PM EST | Special Weather Statement | GRR | 3 hr |
| Dec 27, 3:40 PM EST | Winter Weather Advisory | GRR | 4 days |
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 | 2 |
| Severe Thunderstorm Watch | 5 |
| Mesoscale Discussion | 17 |
| Special Weather Statement | 25 |
| Flooding | |
| Areal Flood Warning | 1 |
| River Flood Warning | 12 |
| Flood Watch | 4 |
| River Flood Watch | 2 |
| Areal Flood Advisory | 3 |
| River Flood Advisory | 6 |
| Winter | |
| Winter Storm Warning | 1 |
| Freezing Rain Advisory | 1 |
| Winter Weather Advisory | 13 |
| 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 | 8 |
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.