Alert archive / Missouri / Marion County

Weather alerts in Marion County, Missouri, 2026

98 weather alerts in 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Marion County and its neighbors

Each county as a circle sized by its count in 2026. Tap one for its archive.

Alerts
98
Warnings
33
Watches
21
Advisories
24
Busiest month
April29 alerts
Busiest day
June 11, 202610 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 Marion County in 2026 had a tornado report inside them.

Marion County, 2026

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%0
Severe thunderstorm warnings11282%0
Flash flood warnings3167%0

Each office's whole area, 2026

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS St. Louis, MO: tornado warnings801878%5761%20 min
NWS St. Louis, MO: severe thunderstorm warnings25811057%56176%21 min
NWS St. Louis, MO: flash flood warnings612559%8276%97 min

An office's figures cover every county it serves, including across state lines.

The year is still running; reports filed late and damage surveys can still change these figures.

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 18, 1:59 AM CSTCold Weather AdvisoryLSX32 hr
Jan 22, 2:29 AM CSTCold Weather AdvisoryLSX58 hr
Jan 23, 2:24 AM CSTWinter Weather AdvisoryLSX55 hr
Jan 24, 1:38 PM CSTCold Weather AdvisoryLSX46 hr
Feb 26, 2:05 PM CSTFire Weather WatchLSX10 hr
Feb 27, 12:28 AM CSTRed Flag WarningLSX18 hr
Mar 1, 1:34 AM CSTWinter Weather AdvisoryLSX23 hr
Mar 4, 8:42 PM CSTDense Fog AdvisoryLSX9 hr
Mar 10, 5:41 PM CDTMesoscale DiscussionSPC2 hr
Mar 10, 5:57 PM CDTTornado WatchSPC6 hr
Mar 10, 8:22 PM CDTMesoscale DiscussionSPC83 min
Mar 10, 10:14 PM CDTSevere Thunderstorm WarningLSX34 min
Mar 12, 3:05 AM CDTWind AdvisoryLSX30 hr
Mar 14, 10:45 AM CDTWind AdvisoryLSX49 hr
Mar 15, 2:37 PM CDTWinter Weather AdvisoryLSX16 hr
Mar 26, 7:58 PM CDTMesoscale DiscussionSPC2 hr
Mar 27, 11:40 AM CDTFreeze WarningLSX21 hr
Apr 1, 7:25 PM CDTFlood WatchLSX15 hr
Apr 2, 3:46 AM CDTWind AdvisoryLSX15 hr
Apr 2, 1:43 PM CDTTornado WatchSPC8 hr
Apr 2, 2:26 PM CDTRiver Flood WarningLSX15 hr
Apr 2, 3:41 PM CDTMesoscale DiscussionSPC94 min
Apr 2, 4:04 PM CDTRiver Flood WarningLSX4 hr
Apr 3, 1:26 PM CDTMesoscale DiscussionSPC2 hr
Apr 3, 2:20 PM CDTTornado WatchSPC6 hr
Apr 11, 11:33 AM CDTRiver Flood WarningLSX21 days
Apr 14, 3:28 AM CDTSevere Thunderstorm WarningLSX20 min
Apr 15, 6:15 PM CDTMesoscale DiscussionSPC2 hr
Apr 15, 6:50 PM CDTTornado WatchSPC4 hr
Apr 17, 7:57 AM CDTFlood WatchLSX19 hr
Apr 17, 3:04 PM CDTMesoscale DiscussionSPC56 min
Apr 17, 3:31 PM CDTTornado WatchSPC8 hr
Apr 17, 6:46 PM CDTSevere Thunderstorm WarningLSX44 min
Apr 17, 7:21 PM CDTSevere Thunderstorm Warning Considerable damage threatLSX54 min
Apr 18, 9:59 AM CDTRiver Flood WarningLSX10 hr
Apr 18, 12:05 PM CDTRiver Flood WarningLSX21 days
Apr 18, 12:05 PM CDTRiver Flood WarningLSX9 hr
Apr 27, 4:07 AM CDTSevere Thunderstorm WatchSPC6 hr
Apr 27, 7:36 AM CDTMesoscale DiscussionSPC84 min
Apr 27, 8:10 AM CDTSevere Thunderstorm Warning Considerable damage threatLSX65 min
Apr 27, 3:46 PM CDTSevere Thunderstorm WarningLSX44 min
Apr 27, 4:34 PM CDTTornado WarningLSX29 min
Apr 27, 4:52 PM CDTFlash Flood WarningLSX4 hr
Apr 27, 5:04 PM CDTRiver Flood WarningLSX22 hr
Apr 27, 10:37 PM CDTRiver Flood WarningLSX37 hr
Apr 27, 10:37 PM CDTRiver Flood WarningLSX56 hr
May 3, 8:49 PM CDTMesoscale DiscussionSPC116 min
May 4, 6:34 PM CDTMesoscale DiscussionSPC86 min
May 9, 12:15 AM CDTDense Fog AdvisoryLSX7 hr
May 18, 6:12 AM CDTSevere Thunderstorm WarningLSX48 min
May 18, 6:51 AM CDTMesoscale DiscussionSPC84 min
May 18, 9:35 PM CDTSevere Thunderstorm WatchSPC4 hr
Jun 7, 1:26 PM CDTFlood WatchLSX40 hr
Jun 8, 11:44 AM CDTHeat AdvisoryLSX32 hr
Jun 10, 10:44 AM CDTFlood WatchLSX16 hr
Jun 10, 11:09 AM CDTMesoscale DiscussionSPC2 hr
Jun 10, 3:46 PM CDTSevere Thunderstorm WarningLSX44 min
Jun 10, 4:01 PM CDTTornado WatchSPC7 hr
Jun 10, 9:22 PM CDTMesoscale DiscussionSPC83 min
Jun 10, 11:05 PM CDTFlash Flood WarningLSX3 hr
Jun 11, 1:22 AM CDTRiver Flood WarningLSX52 hr
Jun 11, 2:01 AM CDTRiver Flood WarningLSX4 days
Jun 11, 11:50 AM CDTFlood WatchLSX7 hr
Jun 11, 1:57 PM CDTTornado WatchSPC7 hr
Jun 11, 3:07 PM CDTMesoscale DiscussionSPC113 min
Jun 11, 4:48 PM CDTSevere Thunderstorm WarningLSX57 min
Jun 11, 5:15 PM CDTFlash Flood WarningLSX108 min
Jun 11, 5:34 PM CDTSevere Thunderstorm WarningLSX43 min
Jun 13, 11:41 AM CDTRiver Flood WarningLSX5 days
Jun 13, 2:18 PM CDTAreal Flood AdvisoryLSX3 hr
Jun 16, 12:39 PM CDTWind AdvisoryLSX31 hr
Jun 17, 1:03 PM CDTMesoscale DiscussionSPC117 min
Jun 17, 2:14 PM CDTTornado WatchSPC11 hr
Jun 17, 4:00 PM CDTMesoscale DiscussionSPC60 min
Jun 20, 1:28 AM CDTFlood WatchLSX45 hr
Jun 27, 1:59 AM CDTHeat AdvisoryLSX71 hr
Jun 27, 1:15 PM CDTExtreme Heat WarningLSX7 days
Jul 2, 11:50 AM CDTHeat AdvisoryLSX54 hr
Jul 10, 2:50 PM CDTSevere Thunderstorm WatchSPC5 hr
Jul 10, 9:19 PM CDTAreal Flood AdvisoryLSX3 hr
Jul 11, 5:15 AM CDTAreal Flood AdvisoryLSX3 hr
Jul 17, 11:01 AM CDTHeat AdvisoryLSX4 days
Jul 24, 1:12 AM CDTExtreme Heat WatchLSX11 hr
Jul 24, 12:15 PM CDTHeat AdvisoryLSX47 hr
Jul 26, 12:40 AM CDTExtreme Heat WarningLSX66 hr
Jul 31, 2:13 PM CDTMesoscale DiscussionSPC2 hr
Jul 31, 5:30 PM CDTMesoscale DiscussionSPC90 min
Aug 5, 1:57 AM CDTFlood WatchLSX35 hr
Aug 9, 1:05 AM CDTHeat AdvisoryLSX8 days
Aug 14, 9:48 PM CDTFlood WatchLSX12 hr
Aug 14, 11:42 PM CDTMesoscale DiscussionSPC2 hr
Aug 30, 12:27 PM CDTHeat AdvisoryLSX3 days
Sep 3, 12:12 AM CDTExtreme Heat WarningLSX68 hr
Sep 10, 9:56 PM CDTDense Fog AdvisoryLSX12 hr
Sep 15, 2:35 PM CDTMesoscale DiscussionSPC115 min
Sep 15, 6:13 PM CDTSevere Thunderstorm WarningLSX47 min
Sep 16, 12:45 AM CDTAreal Flood AdvisoryLSX5 hr
Sep 20, 11:48 AM CDTRiver Flood WarningLSX6 days

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 archive2025

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.