Alert archive / Mississippi

Weather alerts in Oktibbeha County, Mississippi

3,267 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Oktibbeha County and its neighbors

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

Alerts
3,267
Warnings
942
Watches
668
Advisories
539
Busiest year
2011218 alerts
Average year
82over 40 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, 92% of tornado reports in Oktibbeha County fell inside a tornado warning issued on average 29 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
20085180%0
20096267%1100%14 min
201010370%4100%42 min
201118383%1100%10 min
20143233%0
201520100%0
20164325%1100%23 min
201710100%0
201850100%10%
20199367%3100%27 min
202030100%0
202210370%0
2024110%1100%22 min
202510100%0
Share of tornado reports inside a tornado warning, by year.

Severe thunderstorm warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200823865%1164%18 min
2009241538%11100%24 min
2010342041%1765%20 min
2011372143%2148%19 min
2012261638%14100%16 min
201315940%1292%25 min
2014241250%11100%15 min
201510370%956%37 min
201610820%978%11 min
201713838%771%24 min
2018161413%2357%17 min
2019221532%2471%33 min
2020221341%2387%25 min
2021161038%9100%26 min
2022171324%1275%31 min
2023241250%1250%30 min
20247357%911%8 min
2025241729%2186%19 min

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
20083167%0
200914657%3100%130 min
2010220%2100%22 min
2011191426%786%79 min
20125260%0
201320100%0
20145180%0
201510100%0
2016220%250%188 min
201710100%20%
20183167%20%
201910640%1663%67 min
202011645%1191%52 min
20214250%10%
20223233%250%55 min
20236433%771%64 min
20242150%0
20253233%3100%125 min

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 21, 8:53 PM CDTSevere Thunderstorm WarningJAN67 min
Sep 21, 7:36 PM CDTSevere Thunderstorm WarningJAN54 min
Sep 12, 3:31 PM CDTSevere Thunderstorm WarningJAN74 min
Aug 22, 8:45 PM CDTSevere Thunderstorm WarningJAN45 min
Aug 21, 3:08 AM CDTSevere Thunderstorm WarningJAN67 min
Aug 20, 6:24 PM CDTSevere Thunderstorm WarningJAN81 min
Aug 20, 4:23 PM CDTSevere Thunderstorm WarningJAN67 min
Aug 20, 4:11 PM CDTSevere Thunderstorm WarningJAN49 min
Aug 20, 3:26 PM CDTSevere Thunderstorm WarningJAN64 min
Aug 19, 3:48 PM CDTSevere Thunderstorm WarningJAN57 min
Aug 19, 2:41 PM CDTSevere Thunderstorm WarningJAN49 min
Aug 16, 2:15 AM CDTExtreme Heat WarningJAN42 hr

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.