Alert archive / Illinois

Weather alerts in Alexander County, Illinois

3,318 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Alexander County and its neighbors

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

Alerts
3,318
Warnings
953
Watches
620
Advisories
764
Busiest year
2011203 alerts
Average year
85over 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

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 1, 11:46 AM CDTExtreme Heat WarningPAH4 days
Aug 20, 2:11 AM CDTSevere Thunderstorm WarningPAH42 min
Aug 20, 12:31 AM CDTTornado WarningPAH13 min
Aug 20, 12:05 AM CDTSevere Thunderstorm WarningPAH40 min
Aug 19, 11:44 PM CDTSevere Thunderstorm Warning Considerable damage threatPAH14 min
Aug 19, 11:42 PM CDTFlash Flood WarningPAH5 hr
Aug 19, 11:24 PM CDTSevere Thunderstorm WarningPAH51 min
Aug 19, 10:55 PM CDTSevere Thunderstorm WarningPAH50 min
Aug 12, 9:04 PM CDTSevere Thunderstorm WarningPAH41 min
Aug 10, 12:50 AM CDTExtreme Heat WarningPAH7 days
Jul 31, 11:52 PM CDTSevere Thunderstorm WarningPAH23 min
Jul 25, 11:30 PM CDTExtreme Heat WarningPAH68 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. Rebuilt daily.