⚠️ Heat Advisory – Jefferson; Henry; Des Moines; Van Buren; Lee; Henderson; Warren; Hancock; McDonough; Scotland; Clark – Wednesday, August 12, 2026

Heat Advisory issued August 12 at 1:18AM CDT until August 12 at 8:00PM CDT by NWS Quad Cities IA IL

Details

* WHAT…Heat index values up to 105 expected.

* WHERE…Portions of west central Illinois, southeast Iowa, and
northeast Missouri.

* WHEN…From noon today to 8 PM CDT this evening.

* IMPACTS…Hot temperatures and high humidity may cause heat
illnesses.

* ADDITIONAL DETAILS…Heat indices may briefly exceed 105 degrees in
some areas. Thunderstorms and storm outflow may also interrupt the
high heat at times.

Instructions

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.