Alert archive / Illinois

Weather alerts in Sangamon County, Illinois

3,412 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Sangamon County and its neighbors

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

Alerts
3,412
Warnings
1,085
Watches
609
Advisories
719
Busiest year
2008197 alerts
Average year
83over 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

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 2, 11:14 AM CDTExtreme Heat WarningILX3 days
Aug 16, 1:25 PM CDTSevere Thunderstorm WarningILX35 min
Aug 14, 10:00 AM CDTFlash Flood WarningILX4 hr
Jul 27, 3:58 PM CDTSevere Thunderstorm WarningILX29 min
Jul 26, 12:23 AM CDTExtreme Heat WarningILX45 hr
Jul 10, 11:34 PM CDTFlash Flood WarningILX3 hr
Jul 3, 10:33 PM CDTSevere Thunderstorm WarningILX42 min
Jun 30, 12:23 AM CDTExtreme Heat WarningILX4 days
Jun 17, 6:47 PM CDTTornado WarningILX43 min
Jun 17, 6:33 PM CDTSevere Thunderstorm WarningILX45 min
Jun 17, 6:11 PM CDTFlash Flood WarningILX4 hr
Jun 17, 5:43 PM CDTSevere Thunderstorm WarningILX44 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. Rebuilt daily.