Alert archive / Florida

Weather alerts in Orange County, Florida

4,886 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Orange County and its neighbors

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

Alerts
4,886
Warnings
1,501
Watches
548
Advisories
1,096
Busiest year
2010334 alerts
Average year
119over 41 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, 54% of tornado reports in Orange County fell inside a tornado warning issued on average 14 minutes before, and 85% of the tornado warnings had no report inside them.

Tornado warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200830100%0
20095180%30%
201050100%0
20119189%1100%24 min
20123233%1100%17 min
201380100%0
20146183%250%8 min
201630100%0
20177186%250%6 min
201850100%0
201910100%0
20208450%475%13 min
202120100%0
202290100%0
202340100%0
20249278%0
20255260%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
2008321069%1164%12 min
2009311068%1392%18 min
201017759%1346%26 min
2011371559%2669%32 min
201222673%1464%15 min
201323865%1963%16 min
2014281257%1644%13 min
201527967%757%7 min
201621767%1242%22 min
201724963%771%14 min
201823770%2157%9 min
2019271448%2186%13 min
2020191237%2264%11 min
202117194%1060%9 min
2022321166%1377%14 min
202344882%2471%20 min
2024231057%1656%10 min
202537489%714%1 min

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200830100%0
2016110%1100%45 min
2017110%10%
20226350%667%499 min
202310100%0
20246350%1100%300 min
202560100%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 7, 5:56 PM EDTFlash Flood WarningMLB94 min
Sep 6, 4:54 PM EDTSevere Thunderstorm WarningMLB20 min
Aug 19, 5:02 PM EDTSevere Thunderstorm WarningMLB28 min
Aug 17, 4:43 PM EDTSevere Thunderstorm WarningMLB19 min
Aug 14, 3:58 PM EDTSevere Thunderstorm WarningMLB32 min
Jul 26, 4:21 PM EDTSevere Thunderstorm WarningMLB24 min
Jul 26, 3:48 PM EDTSevere Thunderstorm WarningMLB27 min
Jul 17, 3:00 PM EDTSevere Thunderstorm WarningMLB30 min
Jul 13, 5:18 PM EDTSevere Thunderstorm WarningMLB42 min
Jul 13, 4:55 PM EDTSevere Thunderstorm WarningMLB35 min
Jul 13, 4:38 PM EDTSevere Thunderstorm WarningMLB37 min
Jul 13, 4:09 PM EDTSevere Thunderstorm WarningMLB36 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.