Alert archive / Illinois / Excessive Heat Watches

Excessive Heat Watches in Illinois, 2012

3 excessive heat watches in 2012. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of excessive heat watches reaches back to 2005.

Excessive Heat Watches by county

Each county as a circle sized by its count in 2012. Tap one for its archive.

Excessive Heat Watches
3
Busiest month
July2 excessive heat watches
Busiest day
June 26, 20121 excessive heat watches

Over time

By month

The alerts

Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeCountiesLasted
Jun 26, 3:23 PM CDTExcessive Heat WatchDVNBureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more24 hr
Jul 3, 3:28 AM CDTExcessive Heat WatchLOT24 hr
Jul 19, 2:59 PM CDTExcessive Heat WatchLSXAdams, Bond, Brown, Calhoun, Clinton, Fayette and 10 more13 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force nowTornadoes on recordThe radar archive20112013

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.