Alert archive / Michigan / Oakland County
Weather alerts in Oakland County, Michigan, 2008
119 weather alerts in 2008, 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 2008. Tap one for its archive.
- Alerts
- 119
- Warnings
- 29
- Watches
- 24
- Advisories
- 42
- Busiest month
- June29 alerts
- Busiest day
- June 8, 20086 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 Oakland County in 2008 had a tornado report inside them.
Oakland County, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 17 | 8 | 53% | 28 | 86% | 26 min |
| Flash flood warnings | 0 | 1 | 0% |
Each office's whole area, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Detroit, MI: tornado warnings | 10 | 0 | 100% | 1 | 0% | |
| NWS Detroit, MI: severe thunderstorm warnings | 129 | 69 | 47% | 200 | 83% | 27 min |
| NWS Detroit, MI: flash flood warnings | 5 | 3 | 40% | 4 | 75% | 51 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 |
|---|---|---|---|
| Dec 31, 10:28 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 1, 9:14 AM EST | Snow and Blowing Snow Advisory | DTX | 3 hr |
| Jan 6, 4:03 AM EST | Dense Fog Advisory | DTX | 24 hr |
| Jan 7, 10:29 AM EST | Flood Watch | DTX | 34 hr |
| Jan 7, 3:48 PM EST | High Wind Watch | DTX | 19 hr |
| Jan 7, 9:22 PM EST | Tornado Watch | SPC | 3 hr |
| Jan 8, 10:42 AM EST | Wind Advisory | DTX | 23 hr |
| Jan 15, 3:50 AM EST | Snow Advisory | DTX | 8 hr |
| Jan 19, 4:11 AM EST | Wind Chill Advisory | DTX | 30 hr |
| Jan 23, 3:41 PM EST | Snow Advisory | DTX | 6 hr |
| Jan 29, 3:27 AM EST | Wind Advisory | DTX | 33 hr |
| Jan 29, 3:49 PM EST | Winter Weather Advisory | DTX | 12 hr |
| Jan 30, 3:46 AM EST | Winter Storm Watch | DTX | 23 hr |
| Jan 31, 3:00 AM EST | Heavy Snow Warning | DTX | 34 hr |
| Feb 1, 2:43 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 3, 9:11 PM EST | Winter Weather Advisory | DTX | 12 hr |
| Feb 4, 9:35 PM EST | Dense Fog Advisory | DTX | 10 hr |
| Feb 6, 12:32 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 9, 3:42 PM EST | Wind Chill Advisory | DTX | 44 hr |
| Feb 9, 3:43 PM EST | Wind Advisory | DTX | 24 hr |
| Feb 12, 2:49 PM EST | Snow Advisory | DTX | 8 hr |
| Feb 12, 5:25 PM EST | Heavy Snow Warning | DTX | 5 hr |
| Feb 16, 3:10 PM EST | Freezing Rain Advisory | DTX | 22 hr |
| Feb 17, 2:03 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 24, 3:51 PM EST | Winter Storm Watch | DTX | 23 hr |
| Feb 25, 3:20 PM EST | Snow Advisory | DTX | 21 hr |
| Feb 28, 4:08 PM EST | Snow Advisory | DTX | 23 hr |
| Mar 3, 4:22 AM EST | Winter Storm Watch | DTX | 33 hr |
| Mar 4, 4:45 AM EST | Winter Storm Warning | DTX | 25 hr |
| Mar 6, 4:29 AM EST | Winter Storm Watch | DTX | 24 hr |
| Mar 7, 3:48 PM EST | Snow and Blowing Snow Advisory | DTX | 27 hr |
| Mar 17, 4:07 PM EDT | Winter Weather Advisory | DTX | 17 hr |
| Mar 18, 8:11 PM EDT | Dense Fog Advisory | DTX | 8 hr |
| Mar 21, 4:56 AM EDT | Snow Advisory | DTX | 8 hr |
| Mar 21, 4:56 AM EDT | Winter Storm Warning | DTX | 22 hr |
| Mar 27, 3:37 PM EDT | Snow Advisory | DTX | 12 hr |
| Mar 31, 3:48 PM EDT | Wind Advisory | DTX | 25 hr |
| Apr 11, 11:47 AM EDT | Mesoscale Discussion | SPC | 88 min |
| Apr 11, 12:58 PM EDT | Tornado Watch | SPC | 8 hr |
| Apr 11, 2:41 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Apr 11, 6:01 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Apr 11, 7:12 PM EDT | Severe Thunderstorm Warning | DTX | 63 min |
| Apr 11, 8:04 PM EDT | Severe Thunderstorm Warning | DTX | 26 min |
| Apr 29, 3:31 AM EDT | Freeze Warning | DTX | 28 hr |
| May 17, 7:11 PM EDT | Severe Thunderstorm Warning | DTX | 64 min |
| May 27, 4:12 AM EDT | Frost Advisory | DTX | 28 hr |
| Jun 5, 9:03 AM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 6, 2:18 PM EDT | Tornado Watch | SPC | 10 hr |
| Jun 6, 4:27 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 6, 7:31 PM EDT | Severe Thunderstorm Warning | DTX | 59 min |
| Jun 7, 11:54 PM EDT | Severe Thunderstorm Warning | DTX | 66 min |
| Jun 8, 12:57 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 8, 1:44 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jun 8, 4:13 PM EDT | Severe Thunderstorm Warning | DTX | 61 min |
| Jun 8, 4:35 PM EDT | Severe Thunderstorm Warning | DTX | 70 min |
| Jun 8, 5:07 PM EDT | Tornado Warning | DTX | 27 min |
| Jun 9, 1:18 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 9, 1:38 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 9, 4:02 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jun 13, 6:04 AM EDT | Severe Thunderstorm Warning | DTX | 56 min |
| Jun 13, 6:35 AM EDT | Severe Thunderstorm Warning | DTX | 44 min |
| Jun 13, 6:58 AM EDT | Mesoscale Discussion | SPC | 62 min |
| Jun 13, 7:04 AM EDT | Severe Thunderstorm Warning | DTX | 39 min |
| Jun 13, 2:21 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Jun 13, 2:39 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 15, 1:18 PM EDT | Severe Thunderstorm Warning | DTX | 72 min |
| Jun 15, 1:38 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 15, 9:28 PM EDT | Severe Thunderstorm Warning | DTX | 46 min |
| Jun 21, 11:52 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 21, 2:38 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jun 22, 11:47 AM EDT | Mesoscale Discussion | SPC | 88 min |
| Jun 23, 3:18 PM EDT | Severe Thunderstorm Warning | DTX | 57 min |
| Jun 26, 4:31 PM EDT | Severe Thunderstorm Warning | DTX | 59 min |
| Jun 28, 3:21 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 28, 9:11 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Jul 2, 4:08 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 2, 7:29 PM EDT | Severe Thunderstorm Warning | DTX | 51 min |
| Jul 2, 8:03 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Jul 2, 10:42 PM EDT | Areal Flood Advisory | DTX | 6 hr |
| Jul 7, 1:08 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jul 16, 4:33 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 16, 9:54 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 16, 10:00 PM EDT | Severe Thunderstorm Warning | DTX | 49 min |
| Aug 1, 1:29 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Aug 1, 2:37 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Aug 9, 12:04 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Sep 13, 12:52 PM EDT | Flood Watch | DTX | 32 hr |
| Sep 14, 5:13 AM EDT | River Flood Warning | DTX | 38 hr |
| Sep 14, 11:03 AM EDT | Areal Flood Warning | DTX | 24 hr |
| Sep 14, 11:35 AM EDT | Wind Advisory | DTX | 9 hr |
| Oct 3, 12:14 PM EDT | Frost Advisory | DTX | 20 hr |
| Oct 3, 12:14 PM EDT | Freeze Warning | DTX | 20 hr |
| Oct 4, 4:06 PM EDT | Frost Advisory | DTX | 16 hr |
| Oct 9, 6:48 PM EDT | Frost Advisory | DTX | 13 hr |
| Oct 16, 9:43 PM EDT | Frost Advisory | DTX | 10 hr |
| Oct 18, 12:43 PM EDT | Frost Advisory | DTX | 19 hr |
| Oct 25, 3:40 PM EDT | Wind Advisory | DTX | 26 hr |
| Oct 26, 1:54 PM EDT | Severe Thunderstorm Warning | DTX | 34 min |
| Nov 29, 3:27 PM EST | Winter Storm Watch | DTX | 13 hr |
| Nov 30, 4:33 AM EST | Winter Storm Warning | DTX | 27 hr |
| Nov 30, 4:33 AM EST | Winter Weather Advisory | DTX | 31 hr |
| Dec 8, 10:40 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Dec 14, 4:03 PM EST | Wind Advisory | DTX | 21 hr |
| Dec 16, 4:12 AM EST | Winter Weather Advisory | DTX | 24 hr |
| Dec 17, 4:23 AM EST | Winter Storm Watch | DTX | 32 hr |
| Dec 18, 4:31 AM EST | Winter Storm Warning | DTX | 35 hr |
| Dec 19, 7:22 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Dec 20, 3:43 PM EST | Winter Weather Advisory | DTX | 36 hr |
| Dec 23, 5:01 AM EST | Winter Weather Advisory | DTX | 41 hr |
| Dec 23, 7:22 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 25, 3:55 PM EST | Flood Watch | DTX | 60 hr |
| Dec 25, 4:21 PM EST | Winter Weather Advisory | DTX | 20 hr |
| Dec 26, 4:20 PM EST | Dense Fog Advisory | DTX | 28 hr |
| Dec 27, 4:06 AM EST | High Wind Watch | DTX | 12 hr |
| Dec 27, 4:19 PM EST | Wind Advisory | DTX | 11 hr |
| Dec 28, 2:55 AM EST | High Wind Warning | DTX | 13 hr |
| Dec 28, 11:10 AM EST | Wind Advisory | DTX | 4 hr |
| Dec 29, 10:41 AM EST | Wind Advisory | DTX | 12 hr |
| Dec 30, 3:30 AM EST | Winter Weather Advisory | DTX | 28 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 archive20072009
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.