Alert archive / Michigan / Oakland County
Weather alerts in Oakland County, Michigan, 2014
100 weather alerts in 2014, 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 2014. Tap one for its archive.
- Alerts
- 100
- Warnings
- 21
- Watches
- 16
- Advisories
- 40
- Busiest month
- January20 alerts
- Busiest day
- July 27, 20147 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 reports fell inside a warning.
Oakland County, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 1 | 0% | |||
| Severe thunderstorm warnings | 13 | 13 | 0% | 71 | 89% | 27 min |
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Detroit, MI: tornado warnings | 8 | 2 | 75% | 7 | 57% | 12 min |
| NWS Detroit, MI: severe thunderstorm warnings | 104 | 83 | 20% | 340 | 87% | 27 min |
| NWS Detroit, MI: flash flood warnings | 1 | 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 2, 2:10 PM EST | Wind Chill Advisory | DTX | 20 hr |
| Jan 3, 1:26 PM EST | Winter Storm Watch | DTX | 16 hr |
| Jan 4, 5:02 AM EST | Winter Storm Warning | DTX | 48 hr |
| Jan 5, 5:05 AM EST | Wind Chill Warning | DTX | 59 hr |
| Jan 5, 3:49 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 6, 4:03 AM EST | Winter Weather Advisory | DTX | 18 hr |
| Jan 7, 3:58 PM EST | Wind Chill Advisory | DTX | 17 hr |
| Jan 10, 9:44 AM EST | Dense Fog Advisory | DTX | 4 hr |
| Jan 11, 6:30 AM EST | Dense Fog Advisory | DTX | 4 hr |
| Jan 20, 3:52 PM EST | Wind Chill Advisory | DTX | 18 hr |
| Jan 23, 3:29 AM EST | Wind Chill Watch | DTX | 7 hr |
| Jan 23, 10:33 AM EST | Wind Chill Advisory | DTX | 29 hr |
| Jan 24, 3:06 PM EST | Winter Weather Advisory | DTX | 13 hr |
| Jan 25, 2:43 PM EST | Wind Chill Advisory | DTX | 15 hr |
| Jan 26, 3:03 PM EST | Wind Chill Watch | DTX | 11 hr |
| Jan 27, 2:32 AM EST | Wind Chill Warning | DTX | 33 hr |
| Jan 27, 2:32 AM EST | Winter Weather Advisory | DTX | 7 hr |
| Jan 28, 3:37 AM EST | Wind Chill Advisory | DTX | 30 hr |
| Jan 31, 4:17 AM EST | Winter Storm Watch | DTX | 11 hr |
| Jan 31, 3:27 PM EST | Winter Weather Advisory | DTX | 33 hr |
| Feb 1, 7:14 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 4, 4:08 AM EST | Winter Weather Advisory | DTX | 32 hr |
| Feb 5, 5:39 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 6, 3:04 PM EST | Wind Chill Advisory | DTX | 20 hr |
| Feb 17, 3:29 AM EST | Winter Weather Advisory | DTX | 25 hr |
| Feb 17, 4:57 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 19, 4:00 PM EST | Winter Weather Advisory | DTX | 23 hr |
| Feb 19, 4:05 PM EST | High Wind Watch | DTX | 22 hr |
| Feb 20, 2:26 PM EST | Wind Advisory | DTX | 29 hr |
| Feb 20, 5:48 PM EST | Areal Flood Advisory | DTX | 8 hr |
| Feb 26, 3:51 PM EST | Wind Chill Advisory | DTX | 43 hr |
| Mar 10, 3:38 PM EDT | Winter Storm Watch | DTX | 24 hr |
| Mar 11, 3:44 PM EDT | Winter Storm Warning | DTX | 23 hr |
| Mar 11, 3:44 PM EDT | Winter Weather Advisory | DTX | 28 hr |
| Mar 12, 5:11 AM EDT | Mesoscale Discussion | SPC | 5 hr |
| Apr 4, 2:38 AM EDT | Wind Advisory | DTX | 19 hr |
| Apr 12, 7:21 PM EDT | Severe Thunderstorm Warning | DTX | 39 min |
| Apr 14, 8:13 AM EDT | High Wind Warning | DTX | 4 hr |
| Apr 29, 9:07 PM EDT | Severe Thunderstorm Warning | DTX | 53 min |
| May 5, 3:43 PM EDT | Frost Advisory | DTX | 16 hr |
| May 9, 12:52 PM EDT | Severe Thunderstorm Warning | DTX | 38 min |
| May 12, 2:41 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 12, 3:36 PM EDT | Areal Flood Advisory | DTX | 6 hr |
| May 12, 4:33 PM EDT | Flash Flood Warning | DTX | 6 hr |
| May 12, 4:44 PM EDT | Mesoscale Discussion | SPC | 61 min |
| May 12, 7:05 PM EDT | Mesoscale Discussion | SPC | 55 min |
| May 13, 12:37 PM EDT | Mesoscale Discussion | SPC | 113 min |
| May 13, 2:44 PM EDT | Severe Thunderstorm Warning | DTX | 61 min |
| May 13, 3:17 PM EDT | Severe Thunderstorm Warning | DTX | 58 min |
| May 21, 2:56 AM EDT | Mesoscale Discussion | SPC | 94 min |
| May 28, 1:47 PM EDT | Areal Flood Advisory | DTX | 4 hr |
| Jun 17, 1:28 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Jun 18, 11:32 AM EDT | Mesoscale Discussion | SPC | 118 min |
| Jun 18, 1:55 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 18, 3:21 PM EDT | Areal Flood Advisory | DTX | 3 hr |
| Jun 18, 4:43 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 1, 1:24 AM EDT | Mesoscale Discussion | SPC | 66 min |
| Jul 1, 1:44 AM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 1, 2:55 AM EDT | Severe Thunderstorm Warning | DTX | 63 min |
| Jul 27, 7:32 AM EDT | Dense Fog Advisory | DTX | 83 min |
| Jul 27, 12:54 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jul 27, 1:39 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 27, 4:10 PM EDT | Severe Thunderstorm Warning | DTX | 80 min |
| Jul 27, 4:55 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Jul 27, 5:02 PM EDT | Severe Thunderstorm Warning | DTX | 73 min |
| Jul 27, 5:19 PM EDT | Areal Flood Advisory | DTX | 4 hr |
| Aug 2, 7:47 PM EDT | Severe Thunderstorm Warning | DTX | 34 min |
| Aug 11, 5:37 PM EDT | Areal Flood Advisory | DTX | 6 hr |
| Aug 11, 6:16 PM EDT | Areal Flood Warning | DTX | 13 hr |
| Aug 19, 2:03 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Aug 19, 2:33 PM EDT | Flash Flood Watch | DTX | 5 hr |
| Aug 19, 2:34 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 19, 4:51 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Aug 26, 1:49 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 26, 4:02 PM EDT | Severe Thunderstorm Warning | DTX | 73 min |
| Sep 1, 2:45 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Sep 5, 2:19 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Sep 5, 3:02 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 5, 6:29 PM EDT | Severe Thunderstorm Warning | DTX | 32 min |
| Sep 5, 6:36 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Sep 5, 6:54 PM EDT | Severe Thunderstorm Warning | DTX | 31 min |
| Sep 5, 7:31 PM EDT | Severe Thunderstorm Warning | DTX | 60 min |
| Sep 5, 8:22 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Sep 10, 2:27 PM EDT | Areal Flood Advisory | DTX | 6 hr |
| Sep 20, 6:00 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 20, 6:19 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Oct 9, 3:16 PM EDT | Frost Advisory | DTX | 18 hr |
| Oct 10, 2:15 PM EDT | Freeze Warning | DTX | 19 hr |
| Oct 11, 3:09 PM EDT | Frost Advisory | DTX | 17 hr |
| Oct 31, 3:53 AM EDT | Wind Advisory | DTX | 20 hr |
| Nov 17, 4:01 PM EST | Winter Weather Advisory | DTX | 17 hr |
| Nov 19, 11:08 PM EST | Winter Weather Advisory | DTX | 3 hr |
| Nov 20, 9:19 AM EST | Winter Weather Advisory | DTX | 10 hr |
| Nov 21, 1:08 PM EST | Freezing Rain Advisory | DTX | 22 hr |
| Nov 23, 4:17 PM EST | High Wind Watch | DTX | 11 hr |
| Nov 24, 3:39 AM EST | Wind Advisory | DTX | 18 hr |
| Dec 14, 7:54 PM EST | Dense Fog Advisory | DTX | 8 hr |
| Dec 23, 3:22 PM EST | High Wind Watch | DTX | 13 hr |
| Dec 23, 10:24 PM EST | Dense Fog Advisory | DTX | 6 hr |
| Dec 24, 4:05 AM EST | Wind Advisory | DTX | 18 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 archive20132015
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.