Alert archive / Michigan / Oakland County
Weather alerts in Oakland County, Michigan, 2016
99 weather alerts in 2016, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Oakland County and its neighbors
Each county as a circle sized by its count in 2016. Tap one for its archive.
- Alerts
- 99
- Warnings
- 13
- Watches
- 5
- Advisories
- 32
- Busiest month
- July18 alerts
- Busiest day
- July 8, 20167 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Oakland County, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 7 | 6 | 14% | 5 | 40% | 32 min |
| Flash flood warnings | 2 | 0 | 100% | 0 |
Each office's whole area, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Detroit, MI: tornado warnings | 3 | 0 | 100% | 0 | ||
| NWS Detroit, MI: severe thunderstorm warnings | 40 | 29 | 28% | 96 | 70% | 22 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 9, 4:06 AM EST | Winter Weather Advisory | DTX | 33 hr |
| Jan 11, 3:34 PM EST | Winter Weather Advisory | DTX | 24 hr |
| Feb 8, 3:37 AM EST | Winter Weather Advisory | DTX | 41 hr |
| Feb 19, 3:37 AM EST | Wind Advisory | DTX | 24 hr |
| Feb 22, 3:16 PM EST | Winter Storm Watch | DTX | 24 hr |
| Feb 23, 3:33 PM EST | Winter Storm Warning | DTX | 43 hr |
| Feb 29, 2:21 PM EST | Winter Weather Advisory | DTX | 14 hr |
| Feb 29, 3:14 PM EST | Wind Advisory | DTX | 3 hr |
| Mar 1, 4:09 AM EST | Winter Storm Warning | DTX | 19 hr |
| Mar 1, 1:06 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Mar 6, 3:20 AM EST | Freezing Fog Advisory | DTX | 6 hr |
| Mar 15, 8:45 PM EDT | Wind Advisory | DTX | 23 hr |
| Mar 16, 12:17 AM EDT | Special Weather Statement | DTX | 118 min |
| Mar 16, 2:06 AM EDT | Special Weather Statement | DTX | 114 min |
| Mar 16, 11:18 AM EDT | Special Weather Statement | DTX | 87 min |
| Mar 16, 1:01 PM EDT | Special Weather Statement | DTX | 29 min |
| Mar 16, 1:45 PM EDT | Severe Thunderstorm Warning | DTX | 60 min |
| Mar 28, 7:03 AM EDT | Areal Flood Advisory | DTX | 3 hr |
| Mar 31, 7:19 PM EDT | Special Weather Statement | DTX | 56 min |
| Apr 2, 4:51 AM EDT | Winter Weather Advisory | DTX | 16 hr |
| Apr 9, 4:27 PM EDT | Winter Weather Advisory | DTX | 25 hr |
| Apr 26, 10:44 PM EDT | Frost Advisory | DTX | 9 hr |
| Apr 29, 3:13 PM EDT | Frost Advisory | DTX | 17 hr |
| May 4, 12:49 PM EDT | Special Weather Statement | DTX | 71 min |
| May 12, 6:32 PM EDT | Special Weather Statement | DTX | 58 min |
| May 12, 7:10 PM EDT | Special Weather Statement | DTX | 65 min |
| May 12, 7:27 PM EDT | Areal Flood Advisory | DTX | 3 hr |
| May 14, 4:52 AM EDT | Special Weather Statement | DTX | 68 min |
| May 14, 5:23 AM EDT | Special Weather Statement | DTX | 52 min |
| May 14, 3:33 PM EDT | Frost Advisory | DTX | 16 hr |
| May 29, 2:34 PM EDT | Mesoscale Discussion | SPC | 116 min |
| May 29, 3:29 PM EDT | Special Weather Statement | DTX | 46 min |
| May 29, 4:16 PM EDT | Severe Thunderstorm Warning | DTX | 59 min |
| May 29, 4:32 PM EDT | Severe Thunderstorm Warning | DTX | 32 min |
| Jun 5, 9:56 AM EDT | Special Weather Statement | DTX | 79 min |
| Jun 5, 10:00 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 5, 12:16 PM EDT | Special Weather Statement | DTX | 119 min |
| Jun 5, 1:25 PM EDT | Special Weather Statement | DTX | 80 min |
| Jun 6, 11:41 AM EDT | Mesoscale Discussion | SPC | 64 min |
| Jun 6, 12:18 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 6, 5:24 PM EDT | Special Weather Statement | DTX | 51 min |
| Jun 20, 10:42 AM EDT | Mesoscale Discussion | SPC | 63 min |
| Jul 7, 11:24 PM EDT | Special Weather Statement | DTX | 66 min |
| Jul 8, 12:14 AM EDT | Special Weather Statement | DTX | 61 min |
| Jul 8, 12:16 AM EDT | Areal Flood Advisory | DTX | 3 hr |
| Jul 8, 1:15 AM EDT | Areal Flood Advisory | DTX | 3 hr |
| Jul 8, 12:32 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 8, 3:46 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Jul 8, 7:00 PM EDT | Severe Thunderstorm Warning | DTX | 60 min |
| Jul 12, 8:48 PM EDT | Special Weather Statement | DTX | 72 min |
| Jul 13, 6:47 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Jul 13, 7:09 PM EDT | Special Weather Statement | DTX | 66 min |
| Jul 18, 1:51 AM EDT | Mesoscale Discussion | SPC | 114 min |
| Jul 18, 3:22 AM EDT | Special Weather Statement | DTX | 53 min |
| Jul 18, 3:42 AM EDT | Severe Thunderstorm Warning | DTX | 40 min |
| Jul 20, 3:10 PM EDT | Heat Advisory | DTX | 53 hr |
| Jul 21, 3:49 PM EDT | Special Weather Statement | DTX | 56 min |
| Jul 23, 3:27 AM EDT | Heat Advisory | DTX | 17 hr |
| Jul 30, 12:54 PM EDT | Special Weather Statement | DTX | 51 min |
| Jul 30, 2:07 PM EDT | Areal Flood Advisory | DTX | 113 min |
| Aug 12, 6:19 PM EDT | Special Weather Statement | DTX | 56 min |
| Aug 12, 7:35 PM EDT | Special Weather Statement | DTX | 85 min |
| Aug 15, 2:40 PM EDT | Flood Watch | DTX | 20 hr |
| Aug 16, 3:24 AM EDT | Areal Flood Advisory | DTX | 7 hr |
| Aug 16, 4:47 AM EDT | Areal Flood Warning | DTX | 6 hr |
| Aug 17, 12:25 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Aug 17, 2:36 PM EDT | Special Weather Statement | DTX | 54 min |
| Aug 24, 7:07 PM EDT | Special Weather Statement | DTX | 53 min |
| Aug 25, 1:48 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Aug 27, 2:06 PM EDT | Special Weather Statement | DTX | 39 min |
| Sep 7, 3:11 AM EDT | Heat Advisory | DTX | 17 hr |
| Sep 7, 1:37 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 7, 4:12 PM EDT | Special Weather Statement | DTX | 48 min |
| Sep 10, 4:31 PM EDT | Severe Thunderstorm Warning | DTX | 59 min |
| Sep 10, 4:50 PM EDT | Special Weather Statement | DTX | 55 min |
| Sep 29, 6:21 AM EDT | Areal Flood Advisory | DTX | 3 hr |
| Sep 29, 7:20 AM EDT | Flash Flood Warning | DTX | 3 hr |
| Sep 29, 9:11 AM EDT | Areal Flood Advisory | DTX | 4 hr |
| Sep 29, 10:12 AM EDT | Flash Flood Warning | DTX | 4 hr |
| Sep 29, 11:58 AM EDT | Flood Watch | DTX | 32 hr |
| Oct 3, 10:15 PM EDT | Dense Fog Advisory | DTX | 12 hr |
| Oct 9, 2:05 PM EDT | Frost Advisory | DTX | 19 hr |
| Oct 12, 7:05 PM EDT | Special Weather Statement | DTX | 55 min |
| Oct 13, 3:35 AM EDT | Frost Advisory | DTX | 29 hr |
| Oct 21, 10:55 PM EDT | Frost Advisory | DTX | 8 hr |
| Nov 6, 10:40 PM EST | Dense Fog Advisory | DTX | 11 hr |
| Nov 16, 9:29 PM EST | Dense Fog Advisory | DTX | 13 hr |
| Nov 18, 7:45 PM EST | Severe Thunderstorm Warning | DTX | 49 min |
| Dec 10, 4:01 AM EST | Winter Storm Watch | DTX | 11 hr |
| Dec 10, 3:26 PM EST | Winter Weather Advisory | DTX | 36 hr |
| Dec 10, 4:30 PM EST | Special Weather Statement | DTX | 60 min |
| Dec 11, 3:59 AM EST | Winter Storm Warning | DTX | 23 hr |
| Dec 11, 6:42 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 14, 2:57 PM EST | Special Weather Statement | DTX | 63 min |
| Dec 14, 5:19 PM EST | Special Weather Statement | DTX | 41 min |
| Dec 14, 6:24 PM EST | Special Weather Statement | DTX | 36 min |
| Dec 14, 7:14 PM EST | Special Weather Statement | DTX | 46 min |
| Dec 14, 8:55 PM EST | Special Weather Statement | DTX | 65 min |
| Dec 16, 4:05 AM EST | Winter Weather Advisory | DTX | 29 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 | 1 |
| Mesoscale Discussion | 13 |
| Special Weather Statement | 36 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 2 |
| Flood Watch | 2 |
| Areal Flood Advisory | 8 |
| Winter | |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 8 |
| Heat | |
| Heat Advisory | 3 |
| Cold | |
| Frost Advisory | 6 |
| Wind and dust | |
| Wind Advisory | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
| Freezing Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20152017
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.