Alert archive / Missouri / Warren County

Weather alerts in Warren County, Missouri, 2023

105 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Warren County and its neighbors

Each county as a circle sized by its count in 2023. Tap one for its archive.

Alerts
105
Warnings
36
Watches
25
Advisories
15
Busiest month
July25 alerts
Busiest day
April 15, 20237 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 3 tornado warnings covering Warren County in 2023 had a tornado report inside them.

Warren County, 2023

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings30100%0
Severe thunderstorm warnings271833%1593%20 min
Flash flood warnings00

Each office's whole area, 2023

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS St. Louis, MO: tornado warnings33876%2576%11 min
NWS St. Louis, MO: severe thunderstorm warnings38021843%1,08284%22 min
NWS St. Louis, MO: flash flood warnings382242%4477%100 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 1, 11:43 PM CSTDense Fog AdvisoryLSX15 hr
Jan 12, 6:53 AM CSTWinter Weather AdvisoryLSX5 hr
Jan 22, 2:06 PM CSTWinter Storm WatchLSX24 hr
Jan 23, 2:12 PM CSTWinter Storm WarningLSX43 hr
Jan 23, 2:12 PM CSTWinter Weather AdvisoryLSX45 hr
Jan 29, 1:30 PM CSTWinter Weather AdvisoryLSX20 hr
Feb 13, 2:12 PM CSTWind AdvisoryLSX30 hr
Feb 22, 7:18 AM CSTSevere Thunderstorm WarningLSX32 min
Feb 22, 11:58 AM CSTSevere Thunderstorm WarningLSX62 min
Feb 22, 12:04 PM CSTMesoscale DiscussionSPC56 min
Feb 22, 12:20 PM CSTTornado WatchSPC5 hr
Feb 22, 12:24 PM CSTTornado WarningLSX51 min
Feb 22, 12:34 PM CSTTornado WarningLSX56 min
Feb 26, 1:27 AM CSTWind AdvisoryLSX41 hr
Feb 27, 1:43 AM CSTMesoscale DiscussionSPC62 min
Mar 2, 2:42 AM CSTWind AdvisoryLSX39 hr
Mar 22, 9:55 AM CDTMesoscale DiscussionSPC95 min
Mar 22, 1:39 PM CDTFlood WatchLSX54 hr
Mar 30, 3:03 AM CDTWind AdvisoryLSX58 hr
Mar 31, 8:36 AM CDTMesoscale DiscussionSPC84 min
Mar 31, 11:24 AM CDTMesoscale DiscussionSPC96 min
Mar 31, 11:46 AM CDTTornado Watch PDSSPC8 hr
Mar 31, 3:17 PM CDTMesoscale DiscussionSPC88 min
Apr 3, 2:28 PM CDTWind AdvisoryLSX41 hr
Apr 5, 2:27 AM CDTSevere Thunderstorm WatchSPC10 hr
Apr 5, 1:49 PM CDTFrost AdvisoryLSX19 hr
Apr 6, 2:41 PM CDTFrost AdvisoryLSX18 hr
Apr 15, 8:50 AM CDTMesoscale DiscussionSPC85 min
Apr 15, 11:39 AM CDTMesoscale DiscussionSPC3 hr
Apr 15, 12:48 PM CDTSevere Thunderstorm WatchSPC6 hr
Apr 15, 3:48 PM CDTSevere Thunderstorm WarningLSX42 min
Apr 15, 4:03 PM CDTTornado WatchSPC6 hr
Apr 15, 4:28 PM CDTSevere Thunderstorm Warning Considerable damage threatLSX47 min
Apr 15, 5:07 PM CDTMesoscale DiscussionSPC83 min
Apr 20, 12:25 PM CDTMesoscale DiscussionSPC2 hr
Apr 20, 1:20 PM CDTSevere Thunderstorm WatchSPC7 hr
Apr 20, 3:10 PM CDTMesoscale DiscussionSPC95 min
Apr 20, 3:37 PM CDTSevere Thunderstorm WarningLSX38 min
Apr 20, 4:12 PM CDTSevere Thunderstorm WarningLSX32 min
Apr 20, 5:36 PM CDTMesoscale DiscussionSPC84 min
Apr 21, 2:50 AM CDTFreeze WatchLSX25 hr
Apr 22, 3:57 AM CDTFreeze WarningLSX29 hr
Apr 22, 2:45 PM CDTFreeze WatchLSX12 hr
Apr 23, 2:41 AM CDTFreeze WarningLSX29 hr
May 8, 2:07 AM CDTMesoscale DiscussionSPC113 min
May 8, 3:40 AM CDTSevere Thunderstorm WarningLSX34 min
May 13, 11:26 AM CDTMesoscale DiscussionSPC2 hr
May 13, 12:02 PM CDTSevere Thunderstorm WarningLSX43 min
May 13, 12:17 PM CDTSevere Thunderstorm WarningLSX43 min
May 13, 12:24 PM CDTSevere Thunderstorm WatchSPC7 hr
May 14, 12:43 PM CDTMesoscale DiscussionSPC3 hr
May 14, 2:59 PM CDTSevere Thunderstorm WatchSPC7 hr
May 14, 4:46 PM CDTSevere Thunderstorm WarningLSX44 min
May 14, 5:26 PM CDTSevere Thunderstorm WarningLSX49 min
May 14, 5:47 PM CDTMesoscale DiscussionSPC88 min
Jun 28, 3:02 AM CDTHeat AdvisoryLSX64 hr
Jun 30, 2:32 PM CDTMesoscale DiscussionSPC2 hr
Jun 30, 3:53 PM CDTSevere Thunderstorm WatchSPC7 hr
Jun 30, 5:42 PM CDTSevere Thunderstorm WarningLSX14 min
Jun 30, 7:53 PM CDTSevere Thunderstorm WarningLSX33 min
Jun 30, 7:58 PM CDTMesoscale DiscussionSPC92 min
Jun 30, 9:35 PM CDTSevere Thunderstorm WarningLSX19 min
Jul 1, 3:18 AM CDTSevere Thunderstorm WarningLSX42 min
Jul 1, 12:04 PM CDTSevere Thunderstorm WatchSPC9 hr
Jul 1, 5:16 PM CDTAreal Flood AdvisoryLSX3 hr
Jul 1, 11:31 PM CDTSevere Thunderstorm WarningLSX29 min
Jul 12, 4:59 PM CDTMesoscale DiscussionSPC91 min
Jul 16, 1:24 PM CDTMesoscale DiscussionSPC3 hr
Jul 16, 2:13 PM CDTSevere Thunderstorm WarningLSX47 min
Jul 16, 2:21 PM CDTSevere Thunderstorm WatchSPC4 hr
Jul 16, 2:28 PM CDTSevere Thunderstorm WarningLSX47 min
Jul 17, 1:28 PM CDTSevere Thunderstorm WatchSPC8 hr
Jul 18, 8:59 AM CDTSevere Thunderstorm WatchSPC8 hr
Jul 18, 11:41 PM CDTMesoscale DiscussionSPC2 hr
Jul 19, 3:55 AM CDTSevere Thunderstorm WatchSPC6 hr
Jul 23, 4:58 PM CDTMesoscale DiscussionSPC3 hr
Jul 25, 1:09 PM CDTHeat AdvisoryLSX4 days
Jul 26, 11:59 AM CDTMesoscale DiscussionSPC2 hr
Jul 29, 11:04 AM CDTMesoscale DiscussionSPC116 min
Jul 29, 11:28 AM CDTSevere Thunderstorm WatchSPC7 hr
Jul 29, 1:36 PM CDTSevere Thunderstorm Warning Considerable damage threatLSX39 min
Jul 29, 2:12 PM CDTSevere Thunderstorm WarningLSX48 min
Jul 29, 2:18 PM CDTMesoscale DiscussionSPC117 min
Jul 29, 2:47 PM CDTSevere Thunderstorm Warning Considerable damage threatLSX43 min
Aug 1, 1:01 PM CDTFlood WatchLSX21 hr
Aug 2, 2:56 AM CDTFlood WatchLSX31 hr
Aug 2, 5:30 PM CDTMesoscale DiscussionSPC3 hr
Aug 2, 7:58 PM CDTSevere Thunderstorm WatchSPC7 hr
Aug 4, 5:17 PM CDTSevere Thunderstorm WatchSPC8 hr
Aug 4, 7:47 PM CDTMesoscale DiscussionSPC118 min
Aug 4, 11:22 PM CDTSevere Thunderstorm WarningLSX38 min
Aug 4, 11:29 PM CDTTornado WarningLSX24 min
Aug 10, 1:05 AM CDTDense Fog AdvisoryLSX8 hr
Aug 12, 1:42 AM CDTSevere Thunderstorm WatchSPC5 hr
Aug 12, 2:56 AM CDTMesoscale DiscussionSPC94 min
Aug 12, 3:49 AM CDTSevere Thunderstorm Warning Considerable damage threatLSX56 min
Aug 18, 2:51 AM CDTExcessive Heat WatchLSX25 hr
Aug 19, 3:24 AM CDTExcessive Heat WarningLSX7 days
Aug 26, 12:41 AM CDTMesoscale DiscussionSPC3 hr
Aug 26, 8:25 AM CDTSevere Thunderstorm WarningLSX43 min
Sep 26, 8:17 PM CDTSevere Thunderstorm WarningLSX43 min
Sep 26, 9:07 PM CDTSevere Thunderstorm WarningLSX38 min
Sep 27, 2:42 AM CDTSevere Thunderstorm WarningLSX33 min
Oct 21, 3:05 AM CDTRed Flag WarningLSX16 hr
Oct 28, 2:16 PM CDTFreeze WarningLSX44 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 archive20222024

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.