Alert archive / Michigan / Livingston County
Weather alerts in Livingston County, Michigan, 2017
98 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Livingston County and its neighbors
Each county as a circle sized by its count in 2017. Tap one for its archive.
- Alerts
- 98
- Warnings
- 12
- Watches
- 11
- Advisories
- 29
- Busiest month
- April16 alerts
- Busiest day
- April 20, 20177 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 1 tornado warnings covering Livingston County in 2017 had a tornado report inside them.
Livingston County, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 5 | 3 | 40% | 5 | 80% | 13 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 Detroit, MI: tornado warnings | 3 | 1 | 67% | 4 | 50% | 3 min |
| NWS Detroit, MI: severe thunderstorm warnings | 55 | 35 | 36% | 89 | 76% | 20 min |
| NWS Detroit, MI: flash flood warnings | 4 | 0 | 100% | 0 |
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, 12:14 PM EST | Dense Fog Advisory | DTX | 4 hr |
| Jan 9, 3:19 PM EST | Winter Weather Advisory | DTX | 22 hr |
| Jan 10, 3:44 AM EST | High Wind Watch | DTX | 10 hr |
| Jan 10, 2:11 PM EST | High Wind Warning | DTX | 13 hr |
| Jan 10, 5:35 PM EST | Special Weather Statement | DTX | 70 min |
| Jan 11, 5:44 PM EST | Special Weather Statement | DTX | 16 min |
| Jan 11, 7:05 PM EST | Special Weather Statement | DTX | 55 min |
| Jan 12, 4:05 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 12, 6:27 AM EST | Freezing Rain Advisory | DTX | 6 hr |
| Jan 16, 3:35 AM EST | Freezing Rain Advisory | DTX | 27 hr |
| Jan 20, 4:06 PM EST | Dense Fog Advisory | DTX | 20 hr |
| Jan 21, 3:23 PM EST | Dense Fog Advisory | DTX | 36 hr |
| Jan 30, 3:04 PM EST | Winter Weather Advisory | DTX | 18 hr |
| Feb 1, 8:01 PM EST | Special Weather Statement | DTX | 89 min |
| Feb 7, 2:41 AM EST | Dense Fog Advisory | DTX | 7 hr |
| Feb 12, 9:31 AM EST | Wind Advisory | DTX | 10 hr |
| Feb 21, 10:37 PM EST | Dense Fog Advisory | DTX | 11 hr |
| Feb 24, 3:44 PM EST | Severe Thunderstorm Watch | SPC | 6 hr |
| Feb 24, 5:56 PM EST | Mesoscale Discussion | SPC | 94 min |
| Feb 24, 8:56 PM EST | Special Weather Statement | DTX | 49 min |
| Feb 28, 7:37 PM EST | Severe Thunderstorm Watch | SPC | 8 hr |
| Feb 28, 10:51 PM EST | Special Weather Statement | DTX | 39 min |
| Mar 1, 7:10 AM EST | Wind Advisory | DTX | 16 hr |
| Mar 7, 11:25 AM EST | High Wind Watch | DTX | 11 hr |
| Mar 7, 10:14 PM EST | High Wind Warning | DTX | 21 hr |
| Mar 8, 6:56 PM EST | Wind Advisory | DTX | 2 hr |
| Mar 12, 10:22 PM EDT | Winter Weather Advisory | DTX | 22 hr |
| Mar 21, 4:52 AM EDT | Dense Fog Advisory | DTX | 4 hr |
| Mar 30, 11:41 AM EDT | Flood Watch | DTX | 16 hr |
| Apr 5, 3:00 PM EDT | Flood Watch | DTX | 14 hr |
| Apr 6, 4:28 AM EDT | Winter Storm Warning | DTX | 252 days |
| Apr 6, 4:47 AM EDT | Wind Advisory | DTX | 23 hr |
| Apr 7, 4:23 PM EDT | River Flood Warning | DTX | 7 days |
| Apr 10, 11:53 AM EDT | Special Weather Statement | DTX | 52 min |
| Apr 19, 2:50 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Apr 20, 7:06 AM EDT | Special Weather Statement | DTX | 54 min |
| Apr 20, 1:36 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Apr 20, 1:38 PM EDT | Special Weather Statement | DTX | 52 min |
| Apr 20, 2:08 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 20, 2:23 PM EDT | Severe Thunderstorm Warning | DTX | 23 min |
| Apr 20, 3:24 PM EDT | Special Weather Statement | DTX | 51 min |
| Apr 20, 4:31 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Apr 22, 3:43 PM EDT | Frost Advisory | DTX | 16 hr |
| Apr 26, 10:51 PM EDT | Special Weather Statement | DTX | 54 min |
| Apr 26, 11:26 PM EDT | Severe Thunderstorm Warning | DTX | 47 min |
| Apr 30, 9:32 PM EDT | Special Weather Statement | DTX | 88 min |
| May 1, 7:42 AM EDT | Special Weather Statement | DTX | 33 min |
| May 1, 7:56 AM EDT | Special Weather Statement | DTX | 34 min |
| May 7, 4:03 AM EDT | Freeze Warning | DTX | 28 hr |
| May 8, 2:16 PM EDT | Freeze Warning | DTX | 18 hr |
| May 18, 2:51 AM EDT | Wind Advisory | DTX | 17 hr |
| May 21, 1:58 PM EDT | Special Weather Statement | DTX | 2 hr |
| May 28, 1:56 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 28, 3:51 PM EDT | Special Weather Statement | DTX | 54 min |
| May 28, 4:09 PM EDT | Mesoscale Discussion | SPC | 66 min |
| May 28, 7:09 PM EDT | Special Weather Statement | DTX | 51 min |
| Jun 17, 4:54 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 22, 8:01 PM EDT | Special Weather Statement | DTX | 59 min |
| Jun 30, 1:56 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 1, 12:26 PM EDT | Special Weather Statement | DTX | 49 min |
| Jul 7, 1:34 AM EDT | Special Weather Statement | DTX | 41 min |
| Jul 7, 3:35 AM EDT | Mesoscale Discussion | SPC | 115 min |
| Jul 7, 4:41 AM EDT | Special Weather Statement | DTX | 34 min |
| Jul 10, 8:55 AM EDT | Special Weather Statement | DTX | 65 min |
| Jul 12, 3:51 AM EDT | Flood Watch | DTX | 28 hr |
| Jul 12, 10:53 AM EDT | Special Weather Statement | DTX | 52 min |
| Jul 12, 11:27 AM EDT | Areal Flood Advisory | DTX | 3 hr |
| Jul 12, 11:53 AM EDT | Special Weather Statement | DTX | 67 min |
| Jul 13, 3:19 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 13, 4:19 AM EDT | Special Weather Statement | DTX | 86 min |
| Jul 13, 4:32 AM EDT | Severe Thunderstorm Warning | DTX | 58 min |
| Jul 23, 6:39 PM EDT | Special Weather Statement | DTX | 51 min |
| Aug 3, 5:17 PM EDT | Special Weather Statement | DTX | 58 min |
| Aug 21, 3:24 PM EDT | Special Weather Statement | DTX | 36 min |
| Aug 30, 12:10 AM EDT | Dense Fog Advisory | DTX | 10 hr |
| Sep 4, 3:17 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Sep 4, 4:32 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 4, 5:23 PM EDT | Severe Thunderstorm Warning | DTX | 50 min |
| Sep 14, 3:08 AM EDT | Dense Fog Advisory | DTX | 7 hr |
| Oct 7, 3:26 PM EDT | Wind Advisory | DTX | 12 hr |
| Oct 7, 8:55 PM EDT | Special Weather Statement | DTX | 80 min |
| Oct 7, 9:52 PM EDT | Severe Thunderstorm Warning | DTX | 38 min |
| Oct 7, 10:01 PM EDT | Tornado Warning | DTX | 16 min |
| Oct 15, 11:05 AM EDT | Special Weather Statement | DTX | 55 min |
| Dec 5, 3:57 AM EST | Wind Advisory | DTX | 15 hr |
| Dec 11, 1:29 PM EST | Winter Weather Advisory | DTX | 13 hr |
| Dec 12, 2:05 AM EST | Winter Weather Advisory | DTX | 3 hr |
| Dec 12, 3:48 PM EST | Winter Storm Watch | DTX | 12 hr |
| Dec 15, 5:44 PM EST | Special Weather Statement | DTX | 61 min |
| Dec 21, 7:03 PM EST | Winter Weather Advisory | DTX | 15 hr |
| Dec 24, 4:19 AM EST | Winter Weather Advisory | DTX | 22 hr |
| Dec 25, 4:24 AM EST | Winter Weather Advisory | DTX | 15 hr |
| Dec 25, 6:49 AM EST | Special Weather Statement | DTX | 56 min |
| Dec 25, 11:54 AM EST | Special Weather Statement | DTX | 51 min |
| Dec 25, 12:32 PM EST | Special Weather Statement | DTX | 58 min |
| Dec 25, 1:03 PM EST | Special Weather Statement | DTX | 57 min |
| Dec 26, 2:58 PM EST | Wind Chill Advisory | DTX | 19 hr |
| Dec 30, 2:45 PM EST | Wind Chill Advisory | DTX | 13 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 | 5 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 5 |
| Mesoscale Discussion | 11 |
| Special Weather Statement | 35 |
| Flooding | |
| River Flood Warning | 1 |
| Flood Watch | 3 |
| Areal Flood Advisory | 1 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Freezing Rain Advisory | 2 |
| Winter Weather Advisory | 8 |
| Cold | |
| Freeze Warning | 2 |
| Frost Advisory | 1 |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| High Wind Warning | 2 |
| High Wind Watch | 2 |
| Wind Advisory | 7 |
| 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.