Alert archive / Michigan / Hillsdale County
Weather alerts in Hillsdale County, Michigan, 2012
89 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Hillsdale County and its neighbors
Each county as a circle sized by its count in 2012. Tap one for its archive.
- Alerts
- 89
- Warnings
- 18
- Watches
- 14
- Advisories
- 31
- Busiest month
- March17 alerts
- Busiest day
- March 15, 20125 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Hillsdale County, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 7 | 5 | 29% | 6 | 83% | 28 min |
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Northern Indiana: tornado warnings | 5 | 1 | 80% | 1 | 100% | 2 min |
| NWS Northern Indiana: severe thunderstorm warnings | 126 | 87 | 31% | 272 | 82% | 22 min |
| NWS Northern Indiana: flash flood warnings | 8 | 2 | 75% | 2 | 100% | 87 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 1, 4:58 AM EST | Wind Advisory | IWX | 17 hr |
| Jan 1, 1:28 PM EST | Winter Weather Advisory | IWX | 39 hr |
| Jan 12, 4:21 AM EST | Winter Weather Advisory | IWX | 43 hr |
| Jan 17, 2:09 AM EST | Dense Fog Advisory | IWX | 9 hr |
| Jan 19, 4:18 PM EST | Winter Weather Advisory | IWX | 35 hr |
| Jan 22, 4:30 PM EST | Wind Advisory | IWX | 27 hr |
| Jan 23, 3:03 AM EST | Special Weather Statement | IWX | 27 min |
| Jan 23, 3:38 AM EST | Special Weather Statement | IWX | 37 min |
| Feb 10, 4:07 PM EST | Winter Weather Advisory | IWX | 9 hr |
| Feb 22, 10:00 PM EST | Winter Storm Watch | IWX | 18 hr |
| Feb 23, 2:46 AM EST | Dense Fog Advisory | IWX | 8 hr |
| Feb 23, 4:10 PM EST | Winter Weather Advisory | IWX | 35 hr |
| Feb 29, 4:12 AM EST | Wind Advisory | IWX | 17 hr |
| Mar 2, 4:34 AM EST | Wind Advisory | IWX | 23 hr |
| Mar 7, 4:22 AM EST | Wind Advisory | IWX | 16 hr |
| Mar 12, 4:22 PM EDT | Tornado Watch | SPC | 7 hr |
| Mar 12, 6:29 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Mar 12, 7:59 PM EDT | Severe Thunderstorm Warning | IWX | 21 min |
| Mar 12, 8:43 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Mar 15, 6:30 AM EDT | Special Weather Statement | IWX | 60 min |
| Mar 15, 3:52 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Mar 15, 5:44 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Mar 15, 6:43 PM EDT | Special Weather Statement | IWX | 32 min |
| Mar 15, 7:28 PM EDT | Severe Thunderstorm Warning | IWX | 47 min |
| Mar 15, 8:02 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Mar 19, 2:27 AM EDT | Dense Fog Advisory | IWX | 7 hr |
| Mar 25, 4:00 AM EDT | Freeze Watch | IWX | 40 hr |
| Mar 26, 10:41 AM EDT | Freeze Warning | IWX | 22 hr |
| Mar 28, 3:37 PM EDT | Frost Advisory | IWX | 17 hr |
| Mar 30, 12:38 PM EDT | Special Weather Statement | IWX | 37 min |
| Apr 4, 2:48 PM EDT | Freeze Warning | IWX | 42 hr |
| Apr 5, 2:42 PM EDT | Freeze Watch | IWX | 24 hr |
| Apr 6, 2:49 PM EDT | Freeze Warning | IWX | 18 hr |
| Apr 9, 3:41 PM EDT | Hard Freeze Watch | IWX | 24 hr |
| Apr 10, 3:25 PM EDT | Freeze Watch | IWX | 13 hr |
| Apr 10, 3:25 PM EDT | Freeze Warning | IWX | 18 hr |
| Apr 11, 3:58 AM EDT | Freeze Warning | IWX | 29 hr |
| Apr 15, 10:58 AM EDT | Special Weather Statement | IWX | 32 min |
| Apr 16, 3:47 AM EDT | Wind Advisory | IWX | 15 hr |
| Apr 16, 3:49 PM EDT | Frost Advisory | IWX | 16 hr |
| Apr 17, 12:24 PM EDT | Frost Advisory | IWX | 20 hr |
| Apr 22, 3:52 AM EDT | Freeze Watch | IWX | 11 hr |
| Apr 22, 3:14 PM EDT | Freeze Warning | IWX | 17 hr |
| Apr 25, 3:07 PM EDT | Hard Freeze Watch | IWX | 24 hr |
| Apr 26, 2:59 PM EDT | Hard Freeze Warning | IWX | 18 hr |
| Apr 28, 4:06 AM EDT | Freeze Watch | IWX | 13 hr |
| Apr 28, 4:49 PM EDT | Freeze Warning | IWX | 15 hr |
| May 3, 2:35 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 3, 6:57 PM EDT | Mesoscale Discussion | SPC | 63 min |
| May 3, 8:36 PM EDT | Mesoscale Discussion | SPC | 24 min |
| May 3, 8:59 PM EDT | Severe Thunderstorm Warning | IWX | 38 min |
| Jun 11, 11:13 PM EDT | Special Weather Statement | IWX | 47 min |
| Jun 18, 10:33 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 21, 3:26 PM EDT | Severe Thunderstorm Warning | IWX | 49 min |
| Jun 21, 3:31 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Jun 27, 4:35 AM EDT | Heat Advisory | IWX | 39 hr |
| Jun 29, 4:13 AM EDT | Heat Advisory | IWX | 11 hr |
| Jul 1, 4:32 PM EDT | Severe Thunderstorm Warning | IWX | 43 min |
| Jul 1, 4:52 PM EDT | Severe Thunderstorm Warning | IWX | 38 min |
| Jul 1, 5:19 PM EDT | Flash Flood Warning | IWX | 3 hr |
| Jul 2, 4:01 PM EDT | Excessive Heat Warning | IWX | 5 days |
| Jul 5, 2:57 AM EDT | Mesoscale Discussion | SPC | 63 min |
| Jul 5, 3:21 PM EDT | Special Weather Statement | IWX | 24 min |
| Jul 5, 3:27 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jul 5, 3:43 PM EDT | Severe Thunderstorm Warning | IWX | 47 min |
| Jul 5, 4:35 PM EDT | Special Weather Statement | IWX | 25 min |
| Jul 16, 3:41 PM EDT | Heat Advisory | IWX | 28 hr |
| Jul 26, 2:40 AM EDT | Mesoscale Discussion | SPC | 65 min |
| Jul 27, 2:43 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 27, 5:15 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Aug 4, 5:35 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 4, 7:23 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 16, 11:01 AM EDT | Mesoscale Discussion | SPC | 89 min |
| Sep 5, 12:17 AM EDT | Dense Fog Advisory | IWX | 10 hr |
| Sep 23, 3:17 PM EDT | Frost Advisory | IWX | 17 hr |
| Oct 6, 4:11 AM EDT | Freeze Watch | IWX | 23 hr |
| Oct 7, 3:32 AM EDT | Freeze Warning | IWX | 29 hr |
| Oct 13, 4:22 PM EDT | Wind Advisory | IWX | 31 hr |
| Oct 14, 5:00 PM EDT | Special Weather Statement | IWX | 30 min |
| Oct 28, 3:45 PM EDT | Wind Advisory | IWX | 48 hr |
| Nov 18, 2:01 AM EST | Dense Fog Advisory | IWX | 8 hr |
| Nov 20, 7:53 PM EST | Dense Fog Advisory | IWX | 17 hr |
| Nov 21, 10:29 PM EST | Dense Fog Advisory | IWX | 11 hr |
| Dec 1, 7:24 AM EST | Dense Fog Advisory | IWX | 3 hr |
| Dec 2, 8:13 PM EST | Dense Fog Advisory | IWX | 15 hr |
| Dec 19, 3:30 PM EST | Winter Weather Advisory | IWX | 47 hr |
| Dec 24, 4:26 AM EST | Winter Storm Watch | IWX | 32 hr |
| Dec 25, 12:08 PM EST | Winter Weather Advisory | IWX | 33 hr |
| Dec 26, 3:29 PM EST | Mesoscale Discussion | SPC | 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 | 7 |
| Severe Thunderstorm Watch | 3 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 16 |
| Special Weather Statement | 10 |
| Flooding | |
| Flash Flood Warning | 1 |
| Winter | |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 7 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 3 |
| Cold | |
| Freeze Warning | 8 |
| Hard Freeze Warning | 1 |
| Freeze Watch | 6 |
| Hard Freeze Watch | 2 |
| Frost Advisory | 4 |
| Wind and dust | |
| Wind Advisory | 8 |
| 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 archive20112013
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.