Alert archive / Missouri / Pettis County

Weather alerts in Pettis County, Missouri, 2015

129 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Pettis County and its neighbors

Each county as a circle sized by its count in 2015. Tap one for its archive.

Alerts
129
Warnings
43
Watches
27
Advisories
24
Busiest month
June27 alerts
Busiest day
April 8, 201514 alerts

Over time

By month

Warning verification

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

0 of 1 tornado warnings covering Pettis County in 2015 had a tornado report inside them.

Pettis County, 2015

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%0
Severe thunderstorm warnings161319%1275%21 min
Flash flood warnings220%10%

Each office's whole area, 2015

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Kansas City, MO: tornado warnings371462%2584%18 min
NWS Kansas City, MO: severe thunderstorm warnings28015046%41880%20 min
NWS Kansas City, MO: flash flood warnings804741%14990%113 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 6, 3:21 AM CSTWind Chill AdvisoryEAX54 hr
Feb 15, 3:37 AM CSTWinter Weather AdvisoryEAX29 hr
Feb 20, 3:58 AM CSTWinter Weather AdvisoryEAX29 hr
Feb 20, 6:37 PM CSTMesoscale DiscussionSPC6 hr
Feb 27, 3:34 PM CSTWinter Weather AdvisoryEAX47 hr
Mar 16, 3:28 AM CDTRed Flag WarningEAX17 hr
Mar 24, 2:59 PM CDTSevere Thunderstorm WatchSPC7 hr
Mar 24, 5:30 PM CDTMesoscale DiscussionSPC90 min
Mar 24, 5:43 PM CDTSevere Thunderstorm WarningEAX32 min
Mar 24, 6:07 PM CDTSevere Thunderstorm WarningEAX23 min
Apr 2, 5:22 AM CDTMesoscale DiscussionSPC113 min
Apr 7, 8:24 PM CDTSevere Thunderstorm WatchSPC5 hr
Apr 7, 10:13 PM CDTMesoscale DiscussionSPC2 hr
Apr 8, 6:17 AM CDTMesoscale DiscussionSPC88 min
Apr 8, 6:22 AM CDTDense Fog AdvisoryEAX5 hr
Apr 8, 6:39 AM CDTSevere Thunderstorm WatchSPC6 hr
Apr 8, 9:09 AM CDTSpecial Weather StatementEAX36 min
Apr 8, 9:15 AM CDTSevere Thunderstorm WarningEAX45 min
Apr 8, 9:33 AM CDTMesoscale DiscussionSPC57 min
Apr 8, 2:21 PM CDTMesoscale DiscussionSPC114 min
Apr 8, 2:47 PM CDTSevere Thunderstorm WatchSPC4 hr
Apr 8, 2:51 PM CDTFlash Flood WatchEAX8 hr
Apr 8, 5:24 PM CDTSevere Thunderstorm WarningEAX51 min
Apr 8, 5:45 PM CDTMesoscale DiscussionSPC60 min
Apr 8, 6:06 PM CDTSevere Thunderstorm WarningEAX54 min
Apr 9, 12:58 PM CDTTornado WatchSPC6 hr
Apr 9, 2:32 PM CDTSevere Thunderstorm WarningEAX43 min
Apr 9, 3:12 PM CDTMesoscale DiscussionSPC93 min
Apr 13, 11:33 AM CDTRiver Flood WarningEAX40 hr
May 10, 11:00 AM CDTMesoscale DiscussionSPC3 hr
May 10, 1:22 PM CDTTornado WatchSPC4 hr
May 14, 3:44 PM CDTMesoscale DiscussionSPC3 hr
May 15, 6:40 PM CDTMesoscale DiscussionSPC2 hr
May 16, 10:27 PM CDTSevere Thunderstorm WatchSPC4 hr
May 17, 12:43 AM CDTSevere Thunderstorm WarningEAX47 min
May 17, 1:23 AM CDTSevere Thunderstorm WarningEAX52 min
May 17, 11:32 AM CDTRiver Flood WarningEAX31 hr
May 22, 2:53 PM CDTFlash Flood WatchEAX61 hr
May 23, 9:53 PM CDTRiver Flood WarningEAX69 hr
May 24, 12:54 PM CDTMesoscale DiscussionSPC96 min
May 24, 1:18 PM CDTTornado WatchSPC6 hr
May 24, 1:19 PM CDTTornado WarningEAX26 min
May 24, 2:36 PM CDTAreal Flood AdvisoryEAX6 hr
May 26, 11:47 AM CDTRiver Flood WarningEAX28 hr
May 29, 2:33 PM CDTRiver Flood WarningEAX52 hr
Jun 3, 1:52 PM CDTRiver Flood WarningEAX3 days
Jun 3, 2:56 PM CDTAreal Flood WarningEAX24 hr
Jun 4, 11:48 PM CDTSpecial Weather StatementEAX42 min
Jun 7, 7:23 PM CDTSevere Thunderstorm WatchSPC7 hr
Jun 7, 9:38 PM CDTMesoscale DiscussionSPC97 min
Jun 7, 11:29 PM CDTMesoscale DiscussionSPC91 min
Jun 8, 12:38 AM CDTSpecial Weather StatementEAX52 min
Jun 8, 12:46 AM CDTSevere Thunderstorm WarningEAX28 min
Jun 13, 3:51 PM CDTMesoscale DiscussionSPC84 min
Jun 15, 9:52 AM CDTRiver Flood WarningEAX61 hr
Jun 16, 10:59 PM CDTRiver Flood WarningEAX29 hr
Jun 17, 4:04 PM CDTFlash Flood WatchEAX30 hr
Jun 21, 9:42 AM CDTMesoscale DiscussionSPC2 hr
Jun 21, 12:12 PM CDTSevere Thunderstorm WatchSPC5 hr
Jun 25, 3:57 AM CDTFlash Flood WatchEAX32 hr
Jun 25, 4:52 PM CDTMesoscale DiscussionSPC113 min
Jun 25, 5:53 PM CDTSevere Thunderstorm WatchSPC9 hr
Jun 25, 7:11 PM CDTSevere Thunderstorm WarningEAX49 min
Jun 25, 7:27 PM CDTMesoscale DiscussionSPC93 min
Jun 25, 9:06 PM CDTMesoscale DiscussionSPC84 min
Jun 26, 1:46 AM CDTMesoscale DiscussionSPC59 min
Jun 26, 2:13 AM CDTFlash Flood WarningEAX7 hr
Jun 26, 2:18 AM CDTSevere Thunderstorm WatchSPC3 hr
Jun 26, 2:38 AM CDTSevere Thunderstorm WarningEAX52 min
Jun 26, 5:30 AM CDTRiver Flood WarningEAX50 hr
Jun 26, 8:56 AM CDTAreal Flood WarningEAX16 hr
Jun 30, 4:05 PM CDTFlash Flood WatchEAX36 hr
Jul 1, 1:55 AM CDTSevere Thunderstorm WarningEAX50 min
Jul 1, 2:24 AM CDTFlash Flood WarningEAX6 hr
Jul 1, 4:39 AM CDTRiver Flood WarningEAX66 hr
Jul 1, 8:41 AM CDTAreal Flood WarningEAX6 hr
Jul 1, 6:03 PM CDTTornado WatchSPC6 hr
Jul 1, 7:52 PM CDTMesoscale DiscussionSPC83 min
Jul 1, 8:28 PM CDTSevere Thunderstorm WarningEAX32 min
Jul 1, 8:49 PM CDTSevere Thunderstorm WarningEAX41 min
Jul 1, 8:56 PM CDTSevere Thunderstorm WarningEAX39 min
Jul 1, 10:07 PM CDTAreal Flood WarningEAX16 hr
Jul 2, 2:04 PM CDTAreal Flood WarningEAX24 hr
Jul 6, 3:44 AM CDTFlash Flood WatchEAX60 hr
Jul 6, 3:26 PM CDTSevere Thunderstorm WatchSPC6 hr
Jul 6, 6:20 PM CDTMesoscale DiscussionSPC115 min
Jul 8, 12:51 PM CDTRiver Flood WarningEAX56 hr
Jul 11, 3:04 AM CDTHeat AdvisoryEAX4 days
Jul 13, 6:20 PM CDTSevere Thunderstorm WatchSPC4 hr
Jul 16, 3:46 PM CDTHeat AdvisoryEAX53 hr
Jul 19, 3:47 AM CDTFlash Flood WatchEAX33 hr
Jul 20, 6:45 AM CDTAreal Flood AdvisoryEAX3 hr
Jul 22, 4:03 PM CDTHeat AdvisoryEAX3 days
Jul 24, 5:38 PM CDTAreal Flood AdvisoryEAX3 hr
Jul 25, 3:43 PM CDTHeat AdvisoryEAX29 hr
Jul 25, 3:45 PM CDTFlash Flood WatchEAX18 hr
Jul 26, 3:55 PM CDTExcessive Heat WarningEAX53 hr
Jul 26, 3:55 PM CDTHeat AdvisoryEAX53 hr
Aug 1, 1:13 PM CDTSpecial Weather StatementEAX47 min
Aug 1, 1:55 PM CDTSpecial Weather StatementEAX50 min
Aug 3, 11:44 AM CDTMesoscale DiscussionSPC2 hr
Aug 7, 2:13 PM CDTHeat AdvisoryEAX31 hr
Aug 9, 3:44 AM CDTHeat AdvisoryEAX12 hr
Aug 18, 5:15 PM CDTMesoscale DiscussionSPC90 min
Sep 10, 3:58 PM CDTMesoscale DiscussionSPC3 hr
Sep 18, 10:00 AM CDTFlash Flood WatchEAX11 hr
Sep 18, 7:03 PM CDTMesoscale DiscussionSPC87 min
Oct 16, 3:24 AM CDTFrost AdvisoryEAX27 hr
Oct 19, 2:49 AM CDTRed Flag WarningEAX16 hr
Oct 29, 3:05 PM CDTFrost AdvisoryEAX17 hr
Nov 1, 5:11 AM CSTDense Fog AdvisoryEAX3 hr
Nov 2, 8:52 PM CSTDense Fog AdvisoryEAX12 hr
Nov 5, 12:55 PM CSTMesoscale DiscussionSPC95 min
Nov 5, 1:16 PM CSTSevere Thunderstorm WatchSPC7 hr
Nov 5, 3:17 PM CSTMesoscale DiscussionSPC118 min
Nov 10, 3:54 PM CSTWind AdvisoryEAX38 hr
Nov 11, 10:17 AM CSTMesoscale DiscussionSPC118 min
Nov 11, 3:26 PM CSTSevere Thunderstorm WarningEAX79 min
Nov 17, 10:09 AM CSTAreal Flood WarningEAX9 hr
Nov 25, 3:52 PM CSTFlood WatchEAX50 hr
Nov 26, 11:13 AM CSTRiver Flood WarningEAX64 hr
Dec 7, 12:18 AM CSTDense Fog AdvisoryEAX10 hr
Dec 13, 9:59 AM CSTRiver Flood WarningEAX52 hr
Dec 25, 1:21 PM CSTFlash Flood WatchEAX38 hr
Dec 26, 1:26 PM CSTRiver Flood WarningEAX4 days
Dec 27, 3:52 PM CSTWind AdvisoryEAX20 hr
Dec 27, 9:31 PM CSTAreal Flood AdvisoryEAX24 hr
Dec 27, 10:13 PM CSTWinter Weather AdvisoryEAX23 hr
Dec 28, 10:55 AM CSTAreal Flood WarningEAX24 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 archive20142016

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.