Alert archive / Michigan / Alger County
Weather alerts in Alger County, Michigan, 2008
100 weather alerts in 2008, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Alger County and its neighbors
Each county as a circle sized by its count in 2008. Tap one for its archive.
- Alerts
- 100
- Warnings
- 29
- Watches
- 17
- Advisories
- 34
- Busiest month
- January18 alerts
- Busiest day
- January 30, 20083 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Alger County, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 6 | 1 | 83% | 1 | 100% | 4 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Marquette, MI: tornado warnings | 2 | 0 | 100% | 1 | 0% | |
| NWS Marquette, MI: severe thunderstorm warnings | 54 | 19 | 65% | 33 | 79% | 23 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 3, 4:34 AM EST | Wind Advisory | MQT | 14 hr |
| Jan 6, 6:56 AM EST | Dense Fog Advisory | MQT | 21 hr |
| Jan 8, 4:18 AM EST | Dense Fog Advisory | MQT | 8 hr |
| Jan 13, 4:50 AM EST | Lake Effect Snow Warning | MQT | 38 hr |
| Jan 16, 4:39 AM EST | Winter Storm Watch | MQT | 12 hr |
| Jan 16, 4:11 PM EST | Heavy Snow Warning | MQT | 37 hr |
| Jan 17, 4:33 PM EST | Lake Effect Snow Advisory | MQT | 3 days |
| Jan 18, 5:29 AM EST | Lake Effect Snow Warning | MQT | 62 hr |
| Jan 18, 4:37 PM EST | Lake Effect Snow and Blowing Snow Advisory | MQT | 72 hr |
| Jan 21, 4:30 PM EST | Lake Effect Snow Watch | MQT | 12 hr |
| Jan 22, 4:54 AM EST | Lake Effect Snow Warning | MQT | 40 hr |
| Jan 28, 4:39 AM EST | Winter Storm Watch | MQT | 12 hr |
| Jan 28, 4:42 PM EST | Blizzard Watch | MQT | 13 hr |
| Jan 29, 5:43 AM EST | Blizzard Warning | MQT | 39 hr |
| Jan 29, 7:15 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 30, 4:58 AM EST | Lake Effect Snow and Blowing Snow Advisory | MQT | 30 hr |
| Jan 30, 4:09 PM EST | Wind Chill Advisory | MQT | 12 hr |
| Jan 31, 4:46 AM EST | Wind Chill Advisory | MQT | 3 hr |
| Feb 3, 3:48 PM EST | Snow Advisory | MQT | 30 hr |
| Feb 8, 4:49 AM EST | Blizzard Watch | MQT | 24 hr |
| Feb 9, 4:48 AM EST | Blizzard Warning | MQT | 44 hr |
| Feb 9, 10:13 AM EST | Lakeshore Flood Statement | MQT | 43 hr |
| Feb 10, 4:36 AM EST | High Wind Warning | MQT | 13 hr |
| Feb 10, 10:28 PM EST | Lake Effect Snow and Blowing Snow Advisory | MQT | 6 hr |
| Feb 13, 3:52 PM EST | Snow Advisory | MQT | 24 hr |
| Feb 15, 3:48 PM EST | Winter Storm Watch | MQT | 24 hr |
| Feb 16, 4:16 PM EST | Winter Storm Warning | MQT | 48 hr |
| Feb 18, 4:39 PM EST | Lake Effect Snow Advisory | MQT | 43 hr |
| Feb 26, 4:31 AM EST | Lake Effect Snow Advisory | MQT | 50 hr |
| Mar 1, 1:05 AM EST | Lake Effect Snow Advisory | MQT | 3 hr |
| Mar 1, 4:24 AM EST | Lake Effect Snow Warning | MQT | 7 hr |
| Mar 18, 8:46 AM EDT | Snow Advisory | MQT | 5 hr |
| Mar 24, 3:44 PM EDT | Snow Advisory | MQT | 19 hr |
| Mar 29, 4:19 PM EDT | Winter Storm Watch | MQT | 24 hr |
| Mar 30, 4:41 PM EDT | Winter Storm Warning | MQT | 47 hr |
| Mar 31, 12:45 PM EDT | Blizzard Warning | MQT | 27 hr |
| Mar 31, 5:18 PM EDT | Lakeshore Flood Statement | MQT | 27 hr |
| Apr 8, 6:17 AM EDT | Heavy Snow Warning | MQT | 28 hr |
| Apr 8, 12:00 PM EDT | Snow Advisory | MQT | 20 hr |
| Apr 8, 12:00 PM EDT | Winter Weather Advisory | MQT | 4 hr |
| Apr 9, 4:24 PM EDT | Winter Storm Watch | MQT | 13 hr |
| Apr 10, 5:18 AM EDT | Winter Storm Warning | MQT | 54 hr |
| May 18, 3:54 AM EDT | Frost Advisory | MQT | 27 hr |
| May 26, 3:26 PM EDT | Freeze Watch | MQT | 25 hr |
| May 27, 4:01 PM EDT | Freeze Warning | MQT | 16 hr |
| Jun 6, 4:19 AM EDT | Wind Advisory | MQT | 16 hr |
| Jun 10, 12:51 PM EDT | Severe Thunderstorm Warning | MQT | 39 min |
| Jun 14, 5:01 PM EDT | Severe Thunderstorm Warning | MQT | 29 min |
| Jun 15, 1:38 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 15, 2:18 PM EDT | Severe Thunderstorm Warning | MQT | 42 min |
| Jun 28, 3:23 PM EDT | Severe Thunderstorm Warning | MQT | 52 min |
| Jun 28, 4:24 PM EDT | Areal Flood Advisory | MQT | 2 hr |
| Jul 9, 10:53 AM EDT | Lakeshore Flood Statement | MQT | 9 hr |
| Jul 13, 5:22 AM EDT | Lakeshore Flood Statement | MQT | 18 hr |
| Jul 19, 7:31 AM EDT | Dense Fog Advisory | MQT | 4 hr |
| Jul 21, 4:43 AM EDT | Lakeshore Flood Statement | MQT | 11 hr |
| Jul 25, 2:19 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 25, 4:38 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Aug 1, 1:53 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 1, 3:41 PM EDT | Severe Thunderstorm Warning | MQT | 49 min |
| Aug 1, 4:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Aug 7, 4:04 AM EDT | Lakeshore Flood Statement | MQT | 26 hr |
| Aug 8, 3:59 PM EDT | Lakeshore Flood Statement | MQT | 52 hr |
| Aug 18, 5:42 AM EDT | Lakeshore Flood Statement | MQT | 24 hr |
| Aug 23, 5:46 AM EDT | Lakeshore Flood Statement | MQT | 42 hr |
| Sep 2, 5:30 AM EDT | Lakeshore Flood Statement | MQT | 47 hr |
| Sep 4, 5:28 AM EDT | Lakeshore Flood Statement | MQT | 22 hr |
| Sep 7, 5:50 AM EDT | Lakeshore Flood Statement | MQT | 35 hr |
| Sep 7, 6:49 PM EDT | Severe Thunderstorm Warning | MQT | 56 min |
| Sep 13, 5:51 AM EDT | Lakeshore Flood Statement | MQT | 58 hr |
| Sep 16, 5:38 AM EDT | Lakeshore Flood Statement | MQT | 41 hr |
| Sep 17, 4:52 AM EDT | Frost Advisory | MQT | 27 hr |
| Sep 19, 5:55 AM EDT | Lakeshore Flood Statement | MQT | 40 hr |
| Sep 20, 4:42 AM EDT | Frost Advisory | MQT | 28 hr |
| Sep 26, 5:08 PM EDT | Lakeshore Flood Statement | MQT | 50 hr |
| Sep 29, 5:08 AM EDT | Lakeshore Flood Statement | MQT | 63 hr |
| Nov 3, 6:41 PM EST | Dense Fog Advisory | MQT | 12 hr |
| Nov 8, 5:04 AM EST | Winter Weather Advisory | MQT | 41 hr |
| Nov 9, 10:15 PM EST | Lake Effect Snow Warning | MQT | 14 hr |
| Nov 15, 4:33 PM EST | Lake Effect Snow Watch | MQT | 12 hr |
| Nov 15, 4:33 PM EST | Lake Effect Snow Warning | MQT | 65 hr |
| Nov 18, 4:20 PM EST | Lake Effect Snow Watch | MQT | 19 hr |
| Nov 18, 4:20 PM EST | Lake Effect Snow Warning | MQT | 3 days |
| Nov 30, 8:16 PM EST | Winter Weather Advisory | MQT | 20 hr |
| Dec 2, 4:04 PM EST | Lake Effect Snow Watch | MQT | 20 hr |
| Dec 3, 11:52 AM EST | Lake Effect Snow Warning | MQT | 49 hr |
| Dec 4, 4:04 PM EST | Winter Storm Watch | MQT | 25 hr |
| Dec 5, 4:36 PM EST | Blizzard Warning | MQT | 30 hr |
| Dec 5, 4:36 PM EST | Winter Storm Warning | MQT | 40 hr |
| Dec 9, 9:03 PM EST | Lake Effect Snow Advisory | MQT | 14 hr |
| Dec 11, 4:54 AM EST | Lake Effect Snow Advisory | MQT | 30 hr |
| Dec 13, 6:42 AM EST | Winter Weather Advisory | MQT | 66 hr |
| Dec 19, 6:09 AM EST | Lake Effect Snow Warning | MQT | 23 hr |
| Dec 20, 5:47 AM EST | Winter Storm Warning | MQT | 49 hr |
| Dec 24, 3:54 PM EST | Winter Weather Advisory | MQT | 12 hr |
| Dec 25, 4:58 AM EST | Winter Weather Advisory | MQT | 28 hr |
| Dec 26, 4:31 PM EST | Winter Storm Watch | MQT | 24 hr |
| Dec 27, 4:16 PM EST | Winter Weather Advisory | MQT | 18 hr |
| Dec 27, 10:18 PM EST | Winter Storm Warning | MQT | 15 hr |
| Dec 29, 10:52 AM EST | Winter Weather Advisory | MQT | 13 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.