Alert archive / Michigan / Marquette County

Weather alerts in Marquette County, Michigan, 2011

82 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Marquette County and its neighbors

Each county as a circle sized by its count in 2011. Tap one for its archive.

Alerts
82
Warnings
23
Watches
16
Advisories
30
Busiest month
May13 alerts
Busiest day
May 31, 20117 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

Marquette County, 2011

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings15473%560%5 min
Flash flood warnings00

Each office's whole area, 2011

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Marquette, MI: tornado warnings30100%10%
NWS Marquette, MI: severe thunderstorm warnings823063%8063%22 min
NWS Marquette, MI: flash flood warnings10100%50%

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.

IssuedProductOfficeLasted
Jan 4, 3:42 PM ESTLake Effect Snow WatchMQT49 hr
Jan 5, 4:48 PM ESTLake Effect Snow AdvisoryMQT53 hr
Jan 6, 4:34 PM ESTLake Effect Snow WarningMQT62 hr
Jan 8, 3:53 PM ESTLake Effect Snow AdvisoryMQT15 hr
Jan 20, 5:02 AM ESTLake Effect Snow AdvisoryMQT72 hr
Jan 21, 4:36 PM ESTLake Effect Snow WatchMQT13 hr
Jan 22, 5:18 AM ESTLake Effect Snow WarningMQT17 hr
Feb 1, 9:00 AM ESTLake Effect Snow AdvisoryMQT19 hr
Feb 6, 4:39 AM ESTLake Effect Snow AdvisoryMQT4 days
Feb 9, 3:59 PM ESTWind Chill AdvisoryMQT18 hr
Feb 17, 5:05 AM ESTWind AdvisoryMQT47 hr
Mar 7, 4:00 PM ESTWinter Storm WatchMQT24 hr
Mar 8, 3:59 PM ESTWinter Weather AdvisoryMQT27 hr
Mar 20, 4:32 PM EDTWinter Storm WatchMQT37 hr
Mar 22, 5:42 AM EDTWinter Weather AdvisoryMQT15 hr
Apr 2, 4:47 PM EDTWinter Weather AdvisoryMQT36 hr
Apr 10, 6:26 PM EDTWind AdvisoryMQT23 hr
Apr 10, 7:02 PM EDTMesoscale DiscussionSPC88 min
Apr 10, 9:17 PM EDTTornado WatchSPC4 hr
Apr 10, 9:41 PM EDTSevere Thunderstorm WarningMQT34 min
Apr 10, 9:55 PM EDTMesoscale DiscussionSPC95 min
Apr 11, 7:48 AM EDTRiver Flood AdvisoryMQT30 hr
Apr 15, 4:56 AM EDTWinter Weather AdvisoryMQT63 hr
Apr 19, 5:10 AM EDTWinter Weather AdvisoryMQT18 hr
Apr 27, 4:02 PM EDTDense Fog AdvisoryMQT6 hr
May 11, 3:15 AM EDTSevere Thunderstorm WarningMQT45 min
May 11, 4:19 AM EDTMesoscale DiscussionSPC56 min
May 22, 4:43 PM EDTTornado WatchSPC5 hr
May 24, 4:33 AM EDTFrost AdvisoryMQT27 hr
May 26, 4:35 AM EDTFreeze WatchMQT10 hr
May 26, 3:00 PM EDTFreeze WarningMQT18 hr
May 30, 10:22 PM EDTLakeshore Flood AdvisoryMQT10 hr
May 31, 1:00 PM EDTMesoscale DiscussionSPC3 hr
May 31, 1:56 PM EDTSevere Thunderstorm WatchSPC8 hr
May 31, 2:46 PM EDTSevere Thunderstorm WarningMQT45 min
May 31, 3:47 PM EDTSevere Thunderstorm WarningMQT43 min
May 31, 4:12 PM EDTSevere Thunderstorm WarningMQT48 min
May 31, 4:22 PM EDTWind AdvisoryMQT25 hr
Jun 3, 10:07 PM EDTMesoscale DiscussionSPC83 min
Jun 3, 11:49 PM EDTSevere Thunderstorm WatchSPC5 hr
Jun 6, 3:02 PM EDTMesoscale DiscussionSPC118 min
Jun 6, 6:27 PM EDTSevere Thunderstorm WarningMQT33 min
Jun 6, 6:45 PM EDTSevere Thunderstorm WarningMQT60 min
Jun 6, 7:15 PM EDTSevere Thunderstorm WarningMQT60 min
Jun 6, 7:31 PM EDTSevere Thunderstorm WarningMQT59 min
Jun 21, 4:11 PM EDTFlash Flood WatchMQT19 hr
Jul 1, 9:07 PM EDTSevere Thunderstorm WatchSPC5 hr
Jul 1, 11:04 PM EDTMesoscale DiscussionSPC116 min
Jul 2, 12:38 AM EDTMesoscale DiscussionSPC97 min
Jul 5, 7:31 PM EDTAreal Flood AdvisoryMQT3 hr
Jul 16, 4:24 PM EDTHeat AdvisoryMQT28 hr
Jul 19, 3:55 PM EDTHeat AdvisoryMQT29 hr
Jul 30, 2:04 PM EDTSevere Thunderstorm WatchSPC7 hr
Jul 30, 3:56 PM EDTMesoscale DiscussionSPC2 hr
Jul 30, 5:10 PM EDTSevere Thunderstorm WarningMQT37 min
Jul 30, 5:23 PM EDTSevere Thunderstorm WarningMQT52 min
Aug 19, 8:59 AM EDTSevere Thunderstorm WarningMQT61 min
Aug 19, 4:44 PM EDTSevere Thunderstorm WarningMQT46 min
Sep 5, 4:11 AM EDTFrost AdvisoryMQT29 hr
Sep 6, 3:08 PM EDTFrost AdvisoryMQT17 hr
Sep 12, 6:31 PM EDTMesoscale DiscussionSPC119 min
Sep 12, 8:09 PM EDTSevere Thunderstorm WatchSPC4 hr
Sep 12, 9:04 PM EDTSevere Thunderstorm WarningMQT24 min
Sep 12, 10:00 PM EDTSevere Thunderstorm WarningMQT60 min
Sep 12, 11:06 PM EDTMesoscale DiscussionSPC54 min
Sep 15, 4:55 AM EDTFreeze WarningMQT28 hr
Sep 27, 10:19 PM EDTDense Fog AdvisoryMQT13 hr
Sep 28, 5:15 AM EDTHigh Wind WatchMQT11 hr
Sep 28, 4:08 PM EDTHigh Wind WarningMQT36 hr
Oct 19, 3:50 PM EDTWind AdvisoryMQT25 hr
Nov 7, 3:23 PM ESTWinter Storm WatchMQT37 hr
Nov 8, 3:15 PM ESTWinter Storm WarningMQT37 hr
Nov 9, 5:21 AM ESTLakeshore Flood StatementMQT24 hr
Nov 18, 3:53 PM ESTWinter Weather AdvisoryMQT35 hr
Nov 19, 4:40 AM ESTWinter Storm WarningMQT22 hr
Nov 19, 2:05 PM ESTMesoscale DiscussionSPC4 hr
Dec 2, 4:33 PM ESTWinter Storm WatchMQT13 hr
Dec 3, 5:06 AM ESTWinter Storm WarningMQT29 hr
Dec 12, 8:52 PM ESTFreezing Rain AdvisoryMQT14 hr
Dec 14, 4:00 AM ESTDense Fog AdvisoryMQT6 hr
Dec 14, 4:05 PM ESTDense Fog AdvisoryMQT12 hr
Dec 26, 4:02 PM ESTLake Effect Snow AdvisoryMQT19 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 archive20102012

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.