Alert archive / Michigan / Kalkaska County

Weather alerts in Kalkaska County, Michigan, 2011

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

Kalkaska County and its neighbors

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

Alerts
74
Warnings
24
Watches
9
Advisories
28
Busiest month
May15 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.

Kalkaska County, 2011

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings16756%0
Flash flood warnings00

Each office's whole area, 2011

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Gaylord, MI: tornado warnings30100%20%
NWS Gaylord, MI: severe thunderstorm warnings852571%8662%22 min
NWS Gaylord, MI: flash flood warnings8275%475%141 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.

IssuedProductOfficeLasted
Jan 6, 2:17 PM ESTLake Effect Snow WarningAPX3 days
Jan 8, 4:22 PM ESTLake Effect Snow AdvisoryAPX15 hr
Jan 14, 4:45 AM ESTWinter Weather AdvisoryAPX26 hr
Jan 15, 12:32 PM ESTWinter Weather AdvisoryAPX9 hr
Jan 17, 11:45 AM ESTWinter Weather AdvisoryAPX23 hr
Jan 19, 4:22 PM ESTLake Effect Snow WatchAPX12 hr
Jan 20, 4:21 AM ESTLake Effect Snow WarningAPX37 hr
Jan 28, 4:23 AM ESTWinter Weather AdvisoryAPX30 hr
Feb 1, 3:49 PM ESTWinter Weather AdvisoryAPX19 hr
Feb 15, 4:18 PM ESTFreezing Rain AdvisoryAPX6 hr
Feb 18, 4:09 AM ESTWinter Weather AdvisoryAPX24 hr
Feb 19, 3:53 AM ESTWinter Storm WatchAPX23 hr
Feb 20, 3:16 AM ESTWinter Storm WarningAPX26 hr
Mar 4, 4:18 AM ESTWinter Weather AdvisoryAPX12 hr
Mar 4, 5:36 AM ESTMesoscale DiscussionSPC4 hr
Mar 8, 3:51 PM ESTWinter Weather AdvisoryAPX31 hr
Mar 21, 4:09 AM EDTWinter Storm WatchAPX30 hr
Mar 22, 9:52 AM EDTWinter Storm WarningAPX34 hr
Mar 22, 9:57 PM EDTMesoscale DiscussionSPC5 hr
Apr 10, 4:45 AM EDTSevere Thunderstorm WarningAPX32 min
Apr 10, 5:56 AM EDTSevere Thunderstorm WarningAPX49 min
Apr 10, 6:20 AM EDTSevere Thunderstorm WarningAPX55 min
Apr 10, 5:51 PM EDTMesoscale DiscussionSPC84 min
Apr 10, 6:20 PM EDTTornado WatchSPC7 hr
Apr 10, 9:55 PM EDTMesoscale DiscussionSPC95 min
Apr 11, 12:58 AM EDTSevere Thunderstorm WarningAPX47 min
Apr 16, 4:34 PM EDTWind AdvisoryAPX29 hr
Apr 18, 3:34 PM EDTWinter Storm WatchAPX13 hr
Apr 19, 4:13 AM EDTWinter Storm WarningAPX24 hr
Apr 19, 5:52 PM EDTMesoscale DiscussionSPC4 hr
May 11, 10:19 AM EDTSevere Thunderstorm WarningAPX41 min
May 11, 2:16 PM EDTMesoscale DiscussionSPC119 min
May 15, 3:48 AM EDTFreeze WarningAPX28 hr
May 16, 4:05 PM EDTFrost AdvisoryAPX14 hr
May 22, 8:09 PM EDTMesoscale DiscussionSPC96 min
May 22, 9:52 PM EDTSevere Thunderstorm WarningAPX38 min
May 24, 3:42 AM EDTFrost AdvisoryAPX27 hr
May 26, 3:54 PM EDTFrost AdvisoryAPX15 hr
May 31, 1:00 PM EDTMesoscale DiscussionSPC3 hr
May 31, 1:56 PM EDTSevere Thunderstorm WatchSPC8 hr
May 31, 3:54 PM EDTWind AdvisoryAPX29 hr
May 31, 5:25 PM EDTSevere Thunderstorm WarningAPX65 min
May 31, 5:54 PM EDTSevere Thunderstorm WarningAPX66 min
May 31, 6:33 PM EDTSevere Thunderstorm WarningAPX57 min
May 31, 7:26 PM EDTMesoscale DiscussionSPC2 hr
Jun 6, 3:02 PM EDTMesoscale DiscussionSPC118 min
Jun 8, 12:08 PM EDTMesoscale DiscussionSPC97 min
Jun 8, 1:35 PM EDTSevere Thunderstorm WarningAPX40 min
Jun 8, 1:54 PM EDTSevere Thunderstorm WatchSPC119 min
Jun 8, 11:16 PM EDTSevere Thunderstorm WarningAPX59 min
Jun 21, 8:12 PM EDTFlash Flood WatchAPX14 hr
Jun 22, 1:36 PM EDTSevere Thunderstorm WarningAPX27 min
Jun 22, 2:28 PM EDTSevere Thunderstorm WarningAPX47 min
Jul 18, 12:06 AM EDTMesoscale DiscussionSPC54 min
Jul 18, 12:29 AM EDTSevere Thunderstorm WarningAPX61 min
Jul 19, 4:21 AM EDTDense Fog AdvisoryAPX7 hr
Jul 19, 4:21 AM EDTHeat AdvisoryAPX55 hr
Aug 18, 6:26 AM EDTDense Fog AdvisoryAPX3 hr
Aug 20, 6:02 AM EDTSevere Thunderstorm WarningAPX43 min
Sep 1, 6:54 AM EDTDense Fog AdvisoryAPX3 hr
Sep 2, 11:08 AM EDTMesoscale DiscussionSPC97 min
Sep 2, 12:09 PM EDTSevere Thunderstorm WatchSPC3 hr
Sep 2, 12:39 PM EDTSevere Thunderstorm WarningAPX66 min
Sep 5, 3:38 AM EDTFrost AdvisoryAPX28 hr
Sep 6, 3:30 PM EDTFrost AdvisoryAPX17 hr
Sep 15, 4:07 AM EDTFreeze WarningAPX28 hr
Sep 16, 3:52 PM EDTFreeze WarningAPX15 hr
Sep 19, 10:49 PM EDTDense Fog AdvisoryAPX11 hr
Sep 29, 6:17 AM EDTDense Fog AdvisoryAPX5 hr
Nov 9, 11:16 AM ESTWind AdvisoryAPX18 hr
Nov 10, 4:44 AM ESTWinter Weather AdvisoryAPX26 hr
Nov 17, 9:33 AM ESTLake Effect Snow AdvisoryAPX13 hr
Dec 14, 4:07 AM ESTFreezing Rain AdvisoryAPX6 hr
Dec 15, 4:55 PM ESTWinter Weather AdvisoryAPX16 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.