Alert archive / Missouri / Heat Advisories in 2024

Heat Advisory 9, NWS St. Louis, MO

August 25, 202415 counties in Missouri; 4 counties in Illinois

NWS St. Louis, MO issued this heat advisory at Aug 25, 2024, 2:39 AM CDT for 15 counties in Missouri; 4 counties in Illinois. It took effect at Aug 26, 2024, 12:00 PM CDT. It was in force for 32 hr.

The area

The counties it named.

The facts

Issued
Aug 25, 2024, 2:39 AM CDT (07:39 UTC)
In effect from
Aug 26, 2024, 12:00 PM CDT
Expired
Aug 27, 2024, 8:00 PM CDT
In force
32 hr
Issued by
NWS St. Louis, MO

Counties Adams County, IL, Brown County, IL, Calhoun County, IL, Pike County, IL, Audrain County, MO, Boone County, MO, Callaway County, MO, Cole County, MO, Knox County, MO, Lewis County, MO, Lincoln County, MO, Marion County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Osage County, MO, Pike County, MO, Ralls County, MO, Shelby County, MO

The radar

The St Louis radar (KLSX), 109 km from the middle of the area, began a volume at 07:38 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 25, 2:17 PM CDTHeat AdvisoryLSXFranklin, Gasconade, Jefferson, Saint Charles, Sainte Genevieve, Saint Louis and 2 more5 days

Nearby

Heat Advisories in Missouri, 2024Heat Advisories in Illinois, 2024Every heat advisory in 2024

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.