Alert archive / Illinois / Heat Advisories / 2019
Heat Advisories in Illinois, August 2019
5 heat advisories in August 2019. 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 heat advisories reaches back to 2005.
Heat Advisories by county
Each county as a circle sized by its count in August 2019. Tap one for its archive.
- Heat Advisories
- 5
- Busiest day
- August 11, 20193 heat advisories
Over time
By day
Days in UTC, the clock the archive keeps.
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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 3:05 AM CDT | Heat Advisory | PAH | Alexander, Franklin, Jackson, Jefferson, Johnson, Massac and 4 more | 41 hr |
| Aug 11, 3:43 AM CDT | Heat Advisory | LSX | Calhoun, Clinton, Greene, Jersey, Macoupin, Madison and 5 more | 41 hr |
| Aug 11, 3:06 PM CDT | Heat Advisory | ILX | Cass, Menard, Morgan, Sangamon, Scott | 28 hr |
| Aug 13, 2:20 AM CDT | Heat Advisory | PAH | Alexander, Hardin, Johnson, Massac, Pope, Pulaski and 1 more | 16 hr |
| Aug 19, 10:01 AM CDT | Heat Advisory | LSX | Madison, Saint Clair | 10 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Alexander County2
- Johnson County2
- Massac County2
- Pulaski County2
- Union County2
- Madison County2
- Saint Clair County2
- Franklin County1
- Jackson County1
- Jefferson County1
- Perry County1
- Williamson County1
- Calhoun County1
- Clinton County1
- Greene County1
- Jersey County1
- Macoupin County1
- Monroe County1
- Pike County1
- Randolph County1
- Washington County1
- Cass County1
- Menard County1
- Morgan County1
- Sangamon County1
- Scott County1
- Hardin County1
- Pope County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20182020
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.