Alert archive / Missouri / Osage County

Weather alerts in Osage County, Missouri, 2026

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

Osage County and its neighbors

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

Alerts
115
Warnings
37
Watches
25
Advisories
16
Busiest month
April29 alerts
Busiest day
April 27, 202613 alerts

Over time

By month

Warning verification

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

1 of 3 tornado warnings covering Osage County in 2026 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 14 minutes after it went out.

Osage County, 2026

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings3167%1100%14 min
Severe thunderstorm warnings15847%10100%32 min
Flash flood warnings20100%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 8, 3:14 PM CSTMesoscale DiscussionSPC2 hr
Jan 21, 2:42 AM CSTWinter Storm WatchLSX35 hr
Jan 22, 2:29 AM CSTCold Weather AdvisoryLSX58 hr
Jan 22, 1:15 PM CSTWinter Storm WarningLSX3 days
Jan 24, 1:38 PM CSTCold Weather AdvisoryLSX46 hr
Jan 25, 1:55 AM CSTExtreme Cold WarningLSX34 hr
Feb 18, 1:00 PM CSTRed Flag WarningLSX31 hr
Feb 27, 12:28 AM CSTRed Flag WarningLSX18 hr
Mar 6, 10:08 PM CSTMesoscale DiscussionSPC67 min
Mar 6, 10:28 PM CSTSevere Thunderstorm WatchSPC5 hr
Mar 10, 5:41 PM CDTMesoscale DiscussionSPC2 hr
Mar 11, 1:14 AM CDTMesoscale DiscussionSPC91 min
Mar 14, 10:45 AM CDTWind AdvisoryLSX49 hr
Mar 15, 12:23 PM CDTMesoscale DiscussionSPC2 hr
Mar 15, 1:33 PM CDTTornado WatchSPC6 hr
Mar 27, 11:40 AM CDTFreeze WarningLSX21 hr
Apr 1, 7:25 PM CDTFlood WatchLSX15 hr
Apr 15, 6:50 PM CDTTornado WatchSPC4 hr
Apr 15, 8:34 PM CDTMesoscale DiscussionSPC86 min
Apr 15, 8:46 PM CDTSevere Thunderstorm WarningLSX44 min
Apr 16, 4:50 PM CDTFlash Flood WarningLSX3 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, 5:10 PM CDTMesoscale DiscussionSPC2 hr
Apr 17, 7:57 PM CDTSevere Thunderstorm Warning Considerable damage threatLSX63 min
Apr 17, 8:30 PM CDTTornado WarningLSX45 min
Apr 17, 8:57 PM CDTSevere Thunderstorm WarningLSX48 min
Apr 18, 6:04 AM CDTRiver Flood WarningLSX15 hr
Apr 26, 6:32 PM CDTMesoscale DiscussionSPC88 min
Apr 26, 10:08 PM CDTTornado WarningLSX13 min
Apr 27, 12:50 AM CDTMesoscale DiscussionSPC55 min
Apr 27, 4:07 AM CDTSevere Thunderstorm WatchSPC6 hr
Apr 27, 7:36 AM CDTMesoscale DiscussionSPC84 min
Apr 27, 9:33 AM CDTMesoscale DiscussionSPC117 min
Apr 27, 10:09 AM CDTRiver Flood WarningLSX24 hr
Apr 27, 11:18 AM CDTFlood WatchLSX10 hr
Apr 27, 11:48 AM CDTFlash Flood WarningLSX3 hr
Apr 27, 11:56 AM CDTMesoscale DiscussionSPC2 hr
Apr 27, 12:50 PM CDTTornado WatchSPC9 hr
Apr 27, 3:55 PM CDTMesoscale DiscussionSPC2 hr
Apr 27, 4:57 PM CDTRiver Flood WarningLSX4 days
Apr 27, 5:14 PM CDTSevere Thunderstorm WarningLSX61 min
Apr 28, 1:08 PM CDTMesoscale DiscussionSPC2 hr
Apr 28, 1:32 PM CDTSevere Thunderstorm WatchSPC6 hr
May 3, 8:49 PM CDTMesoscale DiscussionSPC116 min
May 8, 3:01 PM CDTMesoscale DiscussionSPC119 min
May 9, 12:15 AM CDTDense Fog AdvisoryLSX7 hr
May 18, 1:12 AM CDTFlood WatchLSX35 hr
May 18, 6:51 AM CDTMesoscale DiscussionSPC84 min
May 19, 12:13 PM CDTRiver Flood WarningLSX4 days
May 31, 11:54 AM CDTMesoscale DiscussionSPC3 hr
Jun 1, 1:54 AM CDTMesoscale DiscussionSPC2 hr
Jun 1, 3:34 AM CDTSevere Thunderstorm WatchSPC4 hr
Jun 1, 3:44 AM CDTSevere Thunderstorm WarningLSX46 min
Jun 1, 4:02 AM CDTMesoscale DiscussionSPC118 min
Jun 1, 4:22 AM CDTSevere Thunderstorm WarningLSX38 min
Jun 1, 4:25 AM CDTSevere Thunderstorm WarningLSX50 min
Jun 1, 4:53 AM CDTSevere Thunderstorm WarningLSX52 min
Jun 1, 5:00 AM CDTSevere Thunderstorm WarningLSX45 min
Jun 1, 5:25 AM CDTAreal Flood AdvisoryLSX4 hr
Jun 7, 1:16 PM CDTMesoscale DiscussionSPC119 min
Jun 7, 1:26 PM CDTFlood WatchLSX40 hr
Jun 7, 8:43 PM CDTRiver Flood WarningLSX4 days
Jun 8, 5:11 AM CDTRiver Flood WarningLSX3 days
Jun 8, 11:44 AM CDTHeat AdvisoryLSX32 hr
Jun 11, 2:47 PM CDTSevere Thunderstorm WatchSPC8 hr
Jun 12, 9:14 PM CDTRiver Flood WarningLSX5 days
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 20, 1:28 AM CDTFlood WatchLSX45 hr
Jun 21, 5:21 PM CDTMesoscale DiscussionSPC84 min
Jun 24, 11:53 AM CDTFlood WatchLSX62 hr
Jun 26, 4:55 PM CDTMesoscale DiscussionSPC95 min
Jun 27, 1:59 AM CDTHeat AdvisoryLSX71 hr
Jun 27, 1:15 PM CDTExtreme Heat WarningLSX7 days
Jul 4, 12:17 PM CDTSevere Thunderstorm WatchSPC6 hr
Jul 4, 2:15 PM CDTSevere Thunderstorm Warning Considerable damage threatLSX75 min
Jul 4, 2:36 PM CDTMesoscale DiscussionSPC114 min
Jul 5, 9:22 PM CDTDense Fog AdvisoryLSX8 hr
Jul 9, 11:03 AM CDTFlood WatchLSX56 hr
Jul 9, 7:48 PM CDTSevere Thunderstorm WarningLSX42 min
Jul 9, 9:06 PM CDTMesoscale DiscussionSPC84 min
Jul 10, 4:24 PM CDTRiver Flood WarningLSX17 hr
Jul 10, 4:46 PM CDTMesoscale DiscussionSPC119 min
Jul 10, 6:42 PM CDTSevere Thunderstorm WatchSPC5 hr
Jul 10, 7:26 PM CDTMesoscale DiscussionSPC94 min
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 27, 12:14 PM CDTHeat AdvisoryLSX31 hr
Jul 31, 2:13 PM CDTMesoscale DiscussionSPC2 hr
Jul 31, 3:26 PM CDTTornado WatchSPC8 hr
Jul 31, 5:26 PM CDTSevere Thunderstorm WarningLSX49 min
Jul 31, 5:30 PM CDTMesoscale DiscussionSPC90 min
Jul 31, 5:45 PM CDTTornado WarningLSX28 min
Jul 31, 6:20 PM CDTSevere Thunderstorm WarningLSX40 min
Jul 31, 7:12 PM CDTAreal Flood AdvisoryLSX2 hr
Aug 5, 1:57 AM CDTFlood WatchLSX35 hr
Aug 8, 2:05 AM CDTExtreme Heat WatchLSX23 hr
Aug 9, 1:05 AM CDTExtreme Heat WarningLSX8 days
Aug 12, 4:21 PM CDTSevere Thunderstorm WarningLSX39 min
Aug 16, 3:11 PM CDTMesoscale DiscussionSPC2 hr
Aug 16, 8:00 PM CDTSevere Thunderstorm WarningLSX45 min
Aug 16, 8:27 PM CDTMesoscale DiscussionSPC93 min
Aug 19, 1:57 AM CDTMesoscale DiscussionSPC93 min
Aug 19, 3:23 AM CDTMesoscale DiscussionSPC67 min
Aug 30, 12:27 PM CDTHeat AdvisoryLSX3 days
Sep 3, 12:12 AM CDTExtreme Heat WarningLSX68 hr
Sep 5, 12:29 PM CDTHeat AdvisoryLSX31 hr
Sep 14, 11:30 AM CDTHeat AdvisoryLSX5 days
Sep 15, 2:35 PM CDTMesoscale DiscussionSPC115 min
Sep 20, 6:38 PM CDTMesoscale DiscussionSPC2 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 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.