Alert archive / Alabama / Lamar County

Severe Thunderstorm Warnings in Lamar County, Alabama

585 severe thunderstorm warnings since 1986. An alert counts here when it covered this county. The archive of severe thunderstorm warnings reaches back to 1986.

Lamar County and its neighbors

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

Severe Thunderstorm Warnings
585
Busiest year
201145 severe thunderstorm warnings
Average year
14over 41 years on file

Over time

By year

Before October 2007 these were issued for whole counties, and a storm crossing three counties was often three warnings; since then one polygon follows the storm. The count changed with the practice, not only with the weather.

Warning verification

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

From 2008 to 2025, 73% of hail, wind and damage reports in Lamar County fell inside a severe thunderstorm warning issued on average 22 minutes before, and 31% of the severe thunderstorm warnings had no report inside them.

Severe thunderstorm warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
2008321553%1747%18 min
2009433226%3580%25 min
2010302323%2778%25 min
2011453229%3385%23 min
2012282221%2592%17 min
20138625%978%22 min
20148625%1377%17 min
2015131023%1765%16 min
20166517%978%33 min
20176517%9100%22 min
20186350%540%32 min
2019151220%2167%17 min
202010730%1833%19 min
202110550%757%12 min
202215753%475%27 min
2023241538%1060%24 min
20249811%1080%33 min
2025201335%8100%33 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.

The latest severe thunderstorm warnings

The most recent on file, newest first.

IssuedProductOfficeLasted
Sep 21, 3:34 PM CDTSevere Thunderstorm WarningBMX19 min
Sep 6, 2:27 PM CDTSevere Thunderstorm WarningBMX33 min
Aug 26, 4:27 PM CDTSevere Thunderstorm WarningBMX37 min
Aug 22, 7:42 PM CDTSevere Thunderstorm WarningBMX63 min
Aug 17, 7:29 PM CDTSevere Thunderstorm WarningBMX31 min
Aug 17, 7:01 PM CDTSevere Thunderstorm WarningBMX44 min
Jul 3, 1:04 PM CDTSevere Thunderstorm WarningBMX41 min
Jul 3, 11:37 AM CDTSevere Thunderstorm WarningBMX38 min
Jul 1, 3:09 PM CDTSevere Thunderstorm WarningBMX66 min
Jun 1, 1:48 PM CDTSevere Thunderstorm WarningBMX57 min
Jun 1, 1:25 PM CDTSevere Thunderstorm WarningBMX65 min
Apr 29, 12:12 AM CDTSevere Thunderstorm WarningBMX48 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.