Alert archive / Michigan / Oakland County
Weather alerts in Oakland County, Michigan, 2010
97 weather alerts in 2010, 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 2010. Tap one for its archive.
- Alerts
- 97
- Warnings
- 27
- Watches
- 27
- Advisories
- 24
- Busiest month
- July20 alerts
- Busiest day
- July 15, 20106 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
1 of 2 tornado warnings covering Oakland County in 2010 had a tornado report inside them; 0 of 1 tornado reports fell inside a warning.
Oakland County, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 1 | 50% | 1 | 0% | |
| Severe thunderstorm warnings | 9 | 9 | 0% | 32 | 91% | 29 min |
| Flash flood warnings | 1 | 0 | 100% | 5 | 0% |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Detroit, MI: tornado warnings | 26 | 8 | 69% | 18 | 67% | 18 min |
| NWS Detroit, MI: severe thunderstorm warnings | 96 | 63 | 34% | 231 | 76% | 27 min |
| NWS Detroit, MI: flash flood warnings | 5 | 3 | 40% | 13 | 31% | 66 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 6, 9:36 PM EST | Winter Weather Advisory | DTX | 33 hr |
| Feb 8, 4:15 AM EST | Winter Storm Watch | DTX | 19 hr |
| Feb 8, 11:01 PM EST | Winter Storm Warning | DTX | 35 hr |
| Feb 20, 3:55 PM EST | Winter Storm Watch | DTX | 24 hr |
| Feb 21, 3:29 PM EST | Winter Storm Warning | DTX | 25 hr |
| Mar 31, 3:42 PM EDT | Fire Weather Watch | DTX | 37 hr |
| Apr 2, 4:37 AM EDT | Red Flag Warning | DTX | 16 hr |
| Apr 6, 12:07 AM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 6, 4:42 AM EDT | Mesoscale Discussion | SPC | 63 min |
| Apr 6, 9:26 AM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 6, 11:27 AM EDT | Mesoscale Discussion | SPC | 63 min |
| Apr 6, 11:55 AM EDT | Severe Thunderstorm Warning | DTX | 50 min |
| Apr 14, 3:57 PM EDT | Fire Weather Watch | DTX | 12 hr |
| Apr 15, 3:50 AM EDT | Red Flag Warning | DTX | 16 hr |
| Apr 17, 3:51 PM EDT | Freeze Warning | DTX | 16 hr |
| Apr 18, 3:49 PM EDT | Freeze Warning | DTX | 16 hr |
| Apr 19, 3:47 PM EDT | Frost Advisory | DTX | 16 hr |
| Apr 21, 3:57 PM EDT | Frost Advisory | DTX | 16 hr |
| Apr 22, 3:36 PM EDT | Freeze Warning | DTX | 16 hr |
| Apr 27, 4:04 AM EDT | Freeze Warning | DTX | 28 hr |
| Apr 28, 3:24 PM EDT | Frost Advisory | DTX | 17 hr |
| May 7, 8:28 PM EDT | Wind Advisory | DTX | 19 hr |
| May 8, 3:39 PM EDT | Freeze Warning | DTX | 16 hr |
| May 9, 12:06 PM EDT | Freeze Warning | DTX | 20 hr |
| May 12, 3:19 PM EDT | Flood Watch | DTX | 29 hr |
| May 23, 3:30 AM EDT | Dense Fog Advisory | DTX | 7 hr |
| Jun 4, 6:29 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 4, 8:26 PM EDT | Severe Thunderstorm Warning | DTX | 64 min |
| Jun 5, 4:13 AM EDT | Flood Watch | DTX | 23 hr |
| Jun 5, 10:11 PM EDT | Tornado Watch | SPC | 7 hr |
| Jun 6, 12:17 AM EDT | Mesoscale Discussion | SPC | 118 min |
| Jun 6, 1:06 AM EDT | Areal Flood Advisory | DTX | 3 hr |
| Jun 18, 4:32 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 18, 6:06 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Jun 18, 7:56 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jun 18, 9:21 PM EDT | Severe Thunderstorm Warning | DTX | 84 min |
| Jun 21, 11:44 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Jun 22, 12:09 AM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 23, 7:40 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 23, 11:52 AM EDT | Mesoscale Discussion | SPC | 53 min |
| Jun 27, 11:38 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 27, 2:14 PM EDT | Tornado Warning | DTX | 48 min |
| Jun 27, 2:43 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 5, 3:18 AM EDT | Heat Advisory | DTX | 4 days |
| Jul 15, 1:01 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Jul 15, 1:30 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 15, 5:10 PM EDT | Severe Thunderstorm Warning | DTX | 80 min |
| Jul 15, 5:52 PM EDT | Severe Thunderstorm Warning | DTX | 73 min |
| Jul 15, 6:26 PM EDT | Areal Flood Advisory | DTX | 3 hr |
| Jul 15, 6:56 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jul 17, 1:20 PM EDT | Severe Thunderstorm Warning | DTX | 55 min |
| Jul 17, 2:21 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jul 18, 1:47 PM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jul 22, 8:10 PM EDT | Flash Flood Watch | DTX | 7 hr |
| Jul 23, 1:52 PM EDT | Areal Flood Advisory | DTX | 2 hr |
| Jul 23, 4:56 PM EDT | Heat Advisory | DTX | 3 hr |
| Jul 23, 4:58 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jul 23, 5:23 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 23, 5:51 PM EDT | Flash Flood Warning | DTX | 4 hr |
| Jul 24, 3:25 AM EDT | Flash Flood Watch | DTX | 18 hr |
| Jul 28, 12:44 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jul 28, 1:20 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 28, 2:17 PM EDT | Severe Thunderstorm Warning | DTX | 43 min |
| Aug 11, 12:03 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Aug 15, 1:04 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Aug 15, 1:51 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 15, 2:32 PM EDT | Severe Thunderstorm Warning | DTX | 55 min |
| Aug 19, 6:42 PM EDT | Severe Thunderstorm Warning | DTX | 48 min |
| Aug 19, 7:04 PM EDT | Tornado Warning | DTX | 56 min |
| Sep 7, 3:56 PM EDT | Red Flag Warning | DTX | 4 hr |
| Sep 7, 5:06 PM EDT | Wind Advisory | DTX | 3 hr |
| Sep 16, 1:35 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Sep 16, 2:10 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Sep 16, 2:44 PM EDT | Areal Flood Advisory | DTX | 2 hr |
| Sep 21, 7:05 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Sep 21, 8:08 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Sep 21, 10:49 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Sep 23, 3:23 PM EDT | Wind Advisory | DTX | 29 hr |
| Oct 4, 3:52 PM EDT | Frost Advisory | DTX | 16 hr |
| Oct 15, 4:08 PM EDT | Frost Advisory | DTX | 16 hr |
| Oct 18, 3:22 PM EDT | Frost Advisory | DTX | 18 hr |
| Oct 21, 3:08 PM EDT | Freeze Warning | DTX | 18 hr |
| Oct 25, 3:57 AM EDT | High Wind Watch | DTX | 12 hr |
| Oct 25, 4:10 PM EDT | High Wind Watch | DTX | 35 hr |
| Oct 25, 4:10 PM EDT | High Wind Warning | DTX | 24 hr |
| Oct 26, 10:46 AM EDT | Mesoscale Discussion | SPC | 59 min |
| Oct 26, 11:04 AM EDT | Tornado Watch | SPC | 4 hr |
| Oct 26, 3:47 PM EDT | Wind Advisory | DTX | 4 hr |
| Oct 27, 3:38 AM EDT | High Wind Warning | DTX | 13 hr |
| Oct 27, 4:25 PM EDT | Wind Advisory | DTX | 5 hr |
| Nov 9, 3:03 AM EST | Dense Fog Advisory | DTX | 6 hr |
| Nov 10, 8:27 PM EST | Dense Fog Advisory | DTX | 14 hr |
| Nov 12, 8:15 PM EST | Dense Fog Advisory | DTX | 14 hr |
| Dec 10, 3:55 PM EST | Winter Storm Watch | DTX | 27 hr |
| Dec 11, 4:25 PM EST | Winter Storm Warning | DTX | 44 hr |
| Dec 12, 9:50 PM EST | Winter Weather Advisory | DTX | 9 hr |
| Dec 29, 9:43 PM EST | Freezing Rain Advisory | DTX | 11 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 | 9 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 14 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 19 |
| Flooding | |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 2 |
| Flood Watch | 2 |
| Areal Flood Advisory | 4 |
| Winter | |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 3 |
| Freezing Rain Advisory | 1 |
| Winter Weather Advisory | 2 |
| Heat | |
| Heat Advisory | 2 |
| Cold | |
| Freeze Warning | 7 |
| Frost Advisory | 6 |
| Wind and dust | |
| High Wind Warning | 2 |
| High Wind Watch | 2 |
| Wind Advisory | 5 |
| Fire | |
| Red Flag Warning | 3 |
| Fire Weather Watch | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20092011
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.