Alert archive / Missouri

Weather alerts in Reynolds County, Missouri

2,699 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Reynolds County and its neighbors

Each county as a circle sized by its count since 1986. Tap one for its archive.

Alerts
2,699
Warnings
800
Watches
606
Advisories
454
Busiest year
2008176 alerts
Average year
69over 39 years on file

Over time

By year

Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.

By month of the year

Warning verification

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

From 2008 to 2025, 58% of tornado reports in Reynolds County fell inside a tornado warning issued on average 32 minutes before, and 73% of the tornado warnings had no report inside them.

Tornado warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200840100%0
200980100%0
20104175%0
201150100%0
201210100%0
20175260%1100%26 min
2019110%0
202010100%0
20215260%520%37 min
202210100%0
20244325%475%40 min
20255340%2100%20 min
Share of tornado reports inside a tornado warning, by year.

Severe thunderstorm warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200820385%4100%27 min
200918761%1080%30 min
20104175%0
201122673%911%21 min
201210460%4100%19 min
20137357%0
201430100%0
201550100%1100%11 min
20165340%2100%41 min
201711645%1782%18 min
201811464%683%15 min
201911282%0
20207614%560%24 min
20218188%2100%6 min
20226183%1100%3 min
2023221055%9100%40 min
202417947%1070%23 min
202518761%560%17 min

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
20087271%4100%231 min
20097357%3100%186 min
201040100%0
201111555%4100%219 min
201210100%0
201360100%0
201550100%0
201610100%0
2017220%2100%349 min
2018110%1100%97 min
201910100%0
20202150%1100%62 min
202120100%0
202230100%0
2024220%450%20 min
202520100%0

Years from 2008, the first full year of storm-based warnings. The year still running is on its own page.

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.

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

The latest warnings

The most recent on file, newest first.

IssuedProductOfficeLasted
Sep 3, 12:12 AM CDTExtreme Heat WarningLSX68 hr
Aug 19, 10:25 PM CDTSevere Thunderstorm WarningLSX21 min
Aug 19, 9:46 PM CDTTornado WarningLSX44 min
Aug 9, 1:05 AM CDTExtreme Heat WarningLSX8 days
Aug 7, 7:03 PM CDTSevere Thunderstorm WarningLSX28 min
Jul 31, 10:36 PM CDTSevere Thunderstorm WarningLSX39 min
Jul 26, 12:40 AM CDTExtreme Heat WarningLSX66 hr
Jul 10, 8:16 PM CDTAreal Flood WarningLSX18 hr
Jul 10, 4:16 AM CDTFlash Flood Warning EmergencyCatastrophic damage threatLSX16 hr
Jul 10, 2:00 AM CDTRiver Flood WarningLSX41 hr
Jul 9, 11:47 PM CDTFlash Flood WarningLSX6 hr
Jun 27, 1:15 PM CDTExtreme Heat WarningLSX7 days

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive

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.