Alert archive / Missouri / Mercer County

Weather alerts in Mercer County, Missouri, 2016

75 weather alerts in 2016, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Mercer County and its neighbors

Each county as a circle sized by its count in 2016. Tap one for its archive.

Alerts
75
Warnings
13
Watches
12
Advisories
23
Busiest month
July12 alerts
Busiest day
July 7, 20165 alerts

Over time

By month

Warning verification

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

Mercer County, 2016

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings8538%250%25 min
Flash flood warnings00

Each office's whole area, 2016

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Kansas City, MO: tornado warnings12375%1070%8 min
NWS Kansas City, MO: severe thunderstorm warnings23413044%37183%21 min
NWS Kansas City, MO: flash flood warnings482940%7891%125 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 9, 3:14 PM CSTWind Chill AdvisoryEAX19 hr
Jan 16, 3:25 PM CSTWind Chill AdvisoryEAX42 hr
Jan 18, 3:29 PM CSTWinter Weather AdvisoryEAX32 hr
Feb 2, 7:27 PM CSTDense Fog AdvisoryEAX2 hr
Feb 7, 2:42 PM CSTWind AdvisoryEAX27 hr
Mar 13, 10:43 PM CDTDense Fog AdvisoryEAX12 hr
Mar 15, 3:28 AM CDTSevere Thunderstorm WarningEAX37 min
Mar 16, 3:40 AM CDTRed Flag WarningEAX16 hr
Mar 23, 1:07 PM CDTMesoscale DiscussionSPC2 hr
Mar 23, 3:03 PM CDTTornado WatchSPC7 hr
Mar 23, 7:45 PM CDTMesoscale DiscussionSPC2 hr
Mar 23, 8:02 PM CDTSevere Thunderstorm WarningEAX43 min
Apr 8, 3:17 AM CDTFreeze WarningEAX29 hr
Apr 11, 3:38 AM CDTFreeze WarningEAX29 hr
Apr 27, 1:58 PM CDTMesoscale DiscussionSPC2 hr
Apr 27, 2:33 PM CDTTornado WatchSPC7 hr
Apr 27, 5:34 PM CDTMesoscale DiscussionSPC116 min
Apr 27, 5:52 PM CDTSevere Thunderstorm WarningEAX38 min
May 11, 5:34 AM CDTMesoscale DiscussionSPC101 min
May 13, 12:52 PM CDTMesoscale DiscussionSPC113 min
May 13, 1:25 PM CDTSevere Thunderstorm WatchSPC6 hr
May 25, 11:08 PM CDTSevere Thunderstorm WatchSPC5 hr
May 26, 2:09 PM CDTTornado WatchSPC8 hr
May 27, 5:41 PM CDTMesoscale DiscussionSPC64 min
May 27, 7:08 PM CDTSpecial Weather StatementEAX37 min
May 27, 7:13 PM CDTSevere Thunderstorm WarningEAX47 min
May 27, 7:28 PM CDTAreal Flood AdvisoryEAX3 hr
Jun 20, 3:07 PM CDTMesoscale DiscussionSPC83 min
Jun 20, 4:10 PM CDTSevere Thunderstorm WatchSPC5 hr
Jun 20, 6:42 PM CDTMesoscale DiscussionSPC63 min
Jun 20, 9:04 PM CDTMesoscale DiscussionSPC56 min
Jun 21, 2:47 PM CDTHeat AdvisoryEAX30 hr
Jun 30, 3:52 AM CDTFlash Flood WatchEAX3 days
Jun 30, 1:29 PM CDTMesoscale DiscussionSPC3 hr
Jun 30, 3:55 PM CDTSpecial Weather StatementEAX50 min
Jul 4, 2:42 PM CDTHeat AdvisoryEAX29 hr
Jul 7, 1:22 AM CDTMesoscale DiscussionSPC83 min
Jul 7, 1:37 AM CDTSevere Thunderstorm WatchSPC6 hr
Jul 7, 4:26 AM CDTSevere Thunderstorm WarningEAX64 min
Jul 7, 4:27 AM CDTMesoscale DiscussionSPC93 min
Jul 7, 5:26 AM CDTMesoscale DiscussionSPC2 hr
Jul 13, 10:33 AM CDTMesoscale DiscussionSPC117 min
Jul 13, 11:14 AM CDTSevere Thunderstorm WatchSPC5 hr
Jul 17, 3:42 PM CDTHeat AdvisoryEAX69 hr
Jul 18, 9:23 AM CDTExcessive Heat WarningEAX6 days
Jul 19, 12:28 PM CDTMesoscale DiscussionSPC2 hr
Jul 19, 2:18 PM CDTSevere Thunderstorm WatchSPC6 hr
Aug 3, 3:21 AM CDTDense Fog AdvisoryEAX5 hr
Aug 10, 3:07 PM CDTHeat AdvisoryEAX29 hr
Aug 11, 10:12 PM CDTSpecial Weather StatementEAX48 min
Aug 11, 11:43 PM CDTAreal Flood AdvisoryEAX6 hr
Aug 24, 12:25 AM CDTAreal Flood AdvisoryEAX6 hr
Aug 24, 3:36 AM CDTFlash Flood WatchEAX24 hr
Aug 24, 8:02 PM CDTMesoscale DiscussionSPC58 min
Aug 28, 7:14 PM CDTSpecial Weather StatementEAX31 min
Sep 7, 2:47 PM CDTMesoscale DiscussionSPC2 hr
Sep 7, 6:18 PM CDTSpecial Weather StatementEAX27 min
Sep 8, 2:52 AM CDTAreal Flood AdvisoryEAX4 hr
Sep 19, 5:07 PM CDTMesoscale DiscussionSPC113 min
Sep 19, 5:47 PM CDTMesoscale DiscussionSPC118 min
Sep 19, 6:27 PM CDTTornado WatchSPC4 hr
Sep 19, 6:37 PM CDTSevere Thunderstorm WarningEAX23 min
Sep 19, 6:55 PM CDTSevere Thunderstorm WarningEAX50 min
Sep 19, 7:36 PM CDTSevere Thunderstorm WarningEAX39 min
Oct 6, 7:42 PM CDTMesoscale DiscussionSPC93 min
Oct 12, 3:42 AM CDTFrost AdvisoryEAX30 hr
Oct 20, 3:24 PM CDTFrost AdvisoryEAX17 hr
Nov 1, 11:46 PM CDTMesoscale DiscussionSPC2 hr
Nov 8, 2:53 AM CSTFrost AdvisoryEAX30 hr
Nov 11, 2:50 AM CSTFreeze WarningEAX30 hr
Nov 17, 8:41 PM CSTWind AdvisoryEAX23 hr
Dec 5, 3:59 AM CSTDense Fog AdvisoryEAX6 hr
Dec 15, 3:34 PM CSTWinter Weather AdvisoryEAX53 hr
Dec 16, 3:12 PM CSTWind Chill AdvisoryEAX44 hr
Dec 24, 1:30 AM CSTDense Fog AdvisoryEAX10 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 archive20152017

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.