Alert archive / Florida

Weather alerts in Hendry County, Florida

3,351 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Hendry County and its neighbors

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

Alerts
3,351
Warnings
591
Watches
288
Advisories
582
Busiest year
2023233 alerts
Average year
84over 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, 29% of tornado reports in Hendry County fell inside a tornado warning issued on average 19 minutes before, and 89% of the tornado warnings had no report inside them.

Tornado warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200860100%0
201010100%0
201212283%0
2014110%10%
201510100%10%
20163167%0
201720100%0
201810100%0
201910100%0
202020100%0
202140100%0
2022150100%0
202310100%0
202423483%540%19 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%2100%10 min
200924579%3100%21 min
201050100%0
201110640%475%16 min
201226581%3100%23 min
20137271%0
20143233%0
201570100%0
201670100%0
20177186%1100%4 min
20182150%10%
201960100%10%
2020150100%0
20218188%333%34 min
202215287%4100%18 min
202380100%30%
2024170100%10%
202517476%3100%16 min

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200820100%0
201510100%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 10, 3:42 PM EDTSevere Thunderstorm WarningMFL33 min
Aug 29, 2:22 PM EDTSevere Thunderstorm WarningMFL23 min
Jul 13, 8:16 PM EDTSevere Thunderstorm WarningMFL29 min
Jul 13, 7:26 PM EDTSevere Thunderstorm WarningMFL34 min
Jul 12, 7:56 PM EDTSevere Thunderstorm WarningMFL37 min
Jul 10, 2:31 PM EDTSevere Thunderstorm WarningMFL44 min
Jul 10, 1:47 PM EDTSevere Thunderstorm WarningMFL43 min
Jun 22, 5:09 PM EDTSevere Thunderstorm WarningMFL36 min
Jun 19, 6:30 PM EDTSevere Thunderstorm WarningMFL45 min
May 2, 1:41 AM EDTRed Flag WarningMFL17 hr
Apr 21, 10:27 AM EDTRed Flag WarningMFL10 hr
Feb 23, 12:47 AM ESTFreeze WarningMFL32 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.