Alert archive / Mississippi

Weather alerts in Adams County, Mississippi

3,271 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Adams County and its neighbors

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

Alerts
3,271
Warnings
893
Watches
661
Advisories
644
Busiest year
2008211 alerts
Average year
84over 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, 64% of tornado reports in Adams County fell inside a tornado warning issued on average 12 minutes before, and 69% of the tornado warnings had no report inside them.

Tornado warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
20083167%10%
20094175%2100%21 min
201020100%0
201110100%0
201210100%0
20134250%367%15 min
201510100%0
201620100%0
20174175%1100%0 min
2018220%367%15 min
20194175%0
20203167%0
202110100%0
20222150%450%4 min
20232150%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
2008331942%1155%19 min
2009191047%11100%40 min
201019668%757%17 min
2011211052%8100%19 min
2012211433%2075%21 min
2013181139%863%28 min
20149544%786%21 min
2015151033%888%19 min
201616756%850%35 min
201714843%1173%19 min
201810550%4100%20 min
2019161131%1377%28 min
2020201240%13100%22 min
20217271%3100%29 min
202214657%560%14 min
2023271256%1070%27 min
202415940%1164%10 min
2025201145%1267%26 min

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
20089456%0
200920100%0
20107614%12100%84 min
20115260%3100%98 min
20126433%4100%69 min
20135420%1100%309 min
20149456%3100%59 min
20154250%0
20164325%2100%10 min
20173167%1100%39 min
20183233%2100%56 min
20197271%0
20208450%2100%58 min
20215260%250%12 min
20225180%250%150 min
202320100%0
20242150%0
20254325%2100%84 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
Aug 21, 5:13 PM CDTSevere Thunderstorm Warning Considerable damage threatJAN46 min
Aug 21, 4:14 PM CDTSevere Thunderstorm WarningJAN61 min
Aug 21, 4:04 PM CDTSevere Thunderstorm WarningJAN56 min
Aug 21, 3:24 PM CDTSevere Thunderstorm WarningJAN51 min
Aug 21, 2:32 PM CDTSevere Thunderstorm WarningJAN58 min
Aug 20, 12:46 PM CDTExtreme Heat WarningJAN31 hr
Aug 19, 3:12 AM CDTExtreme Heat WarningJAN18 hr
Aug 16, 2:15 AM CDTExtreme Heat WarningJAN42 hr
Jul 21, 1:50 PM CDTExtreme Heat WarningJAN29 hr
Jul 19, 12:19 PM CDTExtreme Heat WarningJAN57 hr
Jun 18, 8:44 AM CDTFlash Flood WarningJAN6 hr
Jun 1, 8:36 PM CDTSevere Thunderstorm WarningJAN54 min

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.