Alert archive / Missouri / Grundy County

Weather alerts in Grundy County, Missouri, 2012

73 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Grundy County and its neighbors

Each county as a circle sized by its count in 2012. Tap one for its archive.

Alerts
73
Warnings
15
Watches
9
Advisories
17
Busiest month
March12 alerts
Busiest day
May 4, 20127 alerts

Over time

By month

Warning verification

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

Grundy County, 2012

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings5260%333%7 min
Flash flood warnings00

Each office's whole area, 2012

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Kansas City, MO: tornado warnings3233%475%4 min
NWS Kansas City, MO: severe thunderstorm warnings1115055%13766%15 min
NWS Kansas City, MO: flash flood warnings8625%888%41 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, Central Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeLasted
Jan 11, 11:31 AM CSTWinter Weather AdvisoryEAX29 hr
Jan 26, 3:20 AM CSTDense Fog AdvisoryEAX7 hr
Jan 29, 2:20 PM CSTFire Weather WatchEAX13 hr
Jan 30, 3:27 AM CSTRed Flag WarningEAX15 hr
Feb 5, 9:52 PM CSTFreezing Fog AdvisoryEAX12 hr
Feb 12, 4:08 AM CSTWinter Weather AdvisoryEAX38 hr
Feb 28, 3:12 PM CSTWind AdvisoryEAX27 hr
Mar 4, 3:41 AM CSTWind AdvisoryEAX14 hr
Mar 5, 2:46 PM CSTWind AdvisoryEAX28 hr
Mar 6, 4:43 AM CSTRed Flag WarningEAX14 hr
Mar 7, 12:19 AM CSTWind AdvisoryEAX15 hr
Mar 18, 3:28 AM CDTFlood WatchEAX3 days
Mar 19, 3:36 PM CDTSpecial Weather StatementEAX24 min
Mar 19, 3:40 PM CDTMesoscale DiscussionSPC95 min
Mar 23, 5:37 PM CDTSpecial Weather StatementEAX23 min
Mar 28, 11:21 PM CDTMesoscale DiscussionSPC84 min
Mar 29, 11:53 AM CDTMesoscale DiscussionSPC97 min
Mar 29, 8:30 PM CDTSevere Thunderstorm WatchSPC6 hr
Mar 29, 11:50 PM CDTMesoscale DiscussionSPC55 min
Apr 10, 3:06 AM CDTFreeze WarningEAX29 hr
Apr 14, 5:00 PM CDTTornado WatchSPC7 hr
Apr 14, 6:57 PM CDTMesoscale DiscussionSPC63 min
Apr 15, 4:17 AM CDTWind AdvisoryEAX16 hr
Apr 15, 5:33 AM CDTSpecial Weather StatementEAX42 min
May 3, 6:42 PM CDTMesoscale DiscussionSPC63 min
May 3, 7:09 PM CDTTornado WatchSPC6 hr
May 3, 11:18 PM CDTMesoscale DiscussionSPC27 min
May 4, 12:18 AM CDTSevere Thunderstorm WarningEAX42 min
May 4, 12:42 AM CDTAreal Flood AdvisoryEAX6 hr
May 4, 12:53 AM CDTSevere Thunderstorm WatchSPC4 hr
May 4, 1:31 AM CDTSpecial Weather StatementEAX44 min
May 4, 2:16 AM CDTMesoscale DiscussionSPC119 min
May 6, 1:42 PM CDTSevere Thunderstorm WatchSPC7 hr
May 6, 3:56 PM CDTMesoscale DiscussionSPC64 min
May 24, 5:11 PM CDTMesoscale DiscussionSPC2 hr
Jun 15, 2:37 PM CDTMesoscale DiscussionSPC113 min
Jun 16, 11:40 AM CDTMesoscale DiscussionSPC95 min
Jun 16, 12:35 PM CDTSevere Thunderstorm WatchSPC5 hr
Jun 16, 2:14 PM CDTSevere Thunderstorm WarningEAX31 min
Jun 16, 3:38 PM CDTMesoscale DiscussionSPC97 min
Jun 17, 5:34 PM CDTMesoscale DiscussionSPC86 min
Jun 20, 11:15 PM CDTSpecial Weather StatementEAX45 min
Jun 26, 4:03 PM CDTExcessive Heat WarningEAX4 days
Jun 26, 4:03 PM CDTHeat AdvisoryEAX12 hr
Jun 30, 8:45 PM CDTMesoscale DiscussionSPC90 min
Jul 2, 3:36 PM CDTHeat AdvisoryEAX5 days
Jul 7, 6:36 PM CDTSpecial Weather StatementEAX24 min
Jul 7, 6:41 PM CDTSevere Thunderstorm WarningEAX34 min
Jul 8, 11:30 AM CDTMesoscale DiscussionSPC3 hr
Jul 17, 3:35 PM CDTExcessive Heat WarningEAX8 days
Jul 17, 3:35 PM CDTHeat AdvisoryEAX3 days
Jul 25, 5:04 AM CDTRed Flag WarningEAX14 hr
Jul 26, 7:07 PM CDTSpecial Weather StatementEAX38 min
Jul 26, 7:12 PM CDTSpecial Weather StatementEAX33 min
Aug 4, 10:26 AM CDTMesoscale DiscussionSPC49 min
Aug 8, 4:10 PM CDTMesoscale DiscussionSPC95 min
Aug 8, 8:33 PM CDTSevere Thunderstorm WarningEAX42 min
Aug 8, 9:12 PM CDTMesoscale DiscussionSPC93 min
Aug 8, 9:19 PM CDTSpecial Weather StatementEAX26 min
Aug 12, 3:39 PM CDTMesoscale DiscussionSPC2 hr
Aug 22, 3:34 PM CDTRed Flag WarningEAX27 hr
Sep 22, 4:12 PM CDTFrost AdvisoryEAX16 hr
Sep 25, 12:51 AM CDTMesoscale DiscussionSPC114 min
Oct 5, 3:14 PM CDTFreeze WarningEAX17 hr
Oct 6, 3:32 AM CDTFreeze WarningEAX28 hr
Oct 22, 1:08 AM CDTMesoscale DiscussionSPC3 hr
Dec 1, 9:23 PM CSTDense Fog AdvisoryEAX18 hr
Dec 2, 7:19 PM CSTDense Fog AdvisoryEAX8 hr
Dec 17, 2:55 PM CSTWinter Storm WatchEAX24 hr
Dec 18, 3:18 PM CSTWinter Storm WarningEAX48 hr
Dec 19, 7:32 PM CSTSpecial Weather StatementEAX28 min
Dec 19, 8:15 PM CSTSevere Thunderstorm WarningEAX30 min
Dec 30, 12:01 PM CSTWinter Weather AdvisoryEAX42 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 archive20112013

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.