| Event | Heat Advisory |
| Severity | Moderate |
| Urgency | Expected |
| Certainty | Likely |
| Area | Dallas; Polk; Jasper; Poweshiek; Madison; Warren; Marion; Mahaska; Union; Clarke; Lucas; Monroe; Wapello; Ringgold; Decatur; Wayne; Appanoose; Davis |
| Effective | 8/30/2026, 1:32:00 PM CDT |
| Expires | 8/30/2026, 11:45:00 PM CDT |
Heat Advisory issued August 30 at 1:32PM CDT until September 2 at 7:00PM CDT by NWS Des Moines IA
Details
* WHAT…Heat index values up to 100-103 degrees.
* WHERE…Portions of central and south central Iowa, including the
Des Moines metro.
* WHEN…From 1 PM Monday to 7 PM CDT Wednesday.
* IMPACTS…Hot temperatures and high humidity may cause heat
illnesses.
* ADDITIONAL DETAILS…While heat index values may not reach 105
degrees each day, the combination of the longevity of the heat and
little or limited relief during the overnight periods have prompted
the multi-day Heat Advisory.
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.
More Stories
⚠️ Severe Thunderstorm Watch – Butte, SD; Harding, SD; Lawrence, SD; Meade, SD; Perkins, SD; Crook, WY – Sunday, August 30, 2026
⚠️ Severe Thunderstorm Watch – Adams, ND; Billings, ND; Bowman, ND; Burke, ND; Divide, ND; Dunn, ND; Golden Valley, ND; Hettinger, ND; McKenzie, ND; Mountrail, ND; Slope, ND; Stark, ND; Williams, ND – Sunday, August 30, 2026
⚠️ Heat Advisory – Iowa; Johnson; Cedar; Muscatine; Scott; Keokuk; Washington; Louisa; Jefferson; Henry; Des Moines; Van Buren; Lee; Rock Island; Henry; Mercer; Henderson; Warren; Hancock; McDonough; Scotland; Clark – Sunday, August 30, 2026