Hazard Report Provided By forecast.weather.gov

Hazardous Weather Outlook
National Weather Service Des Moines IA
329 PM CDT Thu Sep 3 2026

IAZ044>050-057>062-070>075-081>086-092>097-042030-
Crawford-Carroll-Greene-Boone-Story-Marshall-Tama-Audubon-Guthrie-
Dallas-Polk-Jasper-Poweshiek-Cass-Adair-Madison-Warren-Marion-
Mahaska-Adams-Union-Clarke-Lucas-Monroe-Wapello-Taylor-Ringgold-
Decatur-Wayne-Appanoose-Davis-
329 PM CDT Thu Sep 3 2026

This Hazardous Weather Outlook is for portions of central Iowa.

.DAY ONE...This afternoon and tonight

A Heat Advisory is in effect for the area. Please refer to the
National Weather Service website at weather.gov/desmoines for
further details.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

A Heat Advisory is in effect for the area. Please refer to the
National Weather Service website at weather.gov/desmoines for
further details.

Additional thunderstorm chances are forecast at times from
Sunday into early next week. Any severe weather potential during
that time will be assessed in the coming days.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

&&

NWS Des Moines will discontinue the Hazardous Weather Outlook
product (HWO) on September 30th, 2026. Weather hazards and
outlooks will continue to be provided through the standard
forecast channels, including weather briefing packets, forecast
discussions, weather story graphics, the experimental graphical
hazardous weather outlook, and updated hazard messaging. All
local products and visual tools are accessible directly at
weather.gov/desmoines.

$$

URGENT - WEATHER MESSAGE
National Weather Service Des Moines IA
803 PM CDT Thu Sep 3 2026

IAZ057>062-070>075-081>086-092>097-041115-
/O.CON.KDMX.HT.Y.0006.000000T0000Z-260906T0000Z/
Audubon-Guthrie-Dallas-Polk-Jasper-Poweshiek-Cass-Adair-Madison-
Warren-Marion-Mahaska-Adams-Union-Clarke-Lucas-Monroe-Wapello-Taylor-
Ringgold-Decatur-Wayne-Appanoose-Davis-
Including the cities of Corning, Lamoni, Corydon, Bayard, Waukee,
Pella, Audubon, Winterset, Oskaloosa, Bedford, Knoxville, Bloomfield,
Exira, Casey, Seymour, Adair, Atlantic, Mount Ayr, Panora, Chariton,
Carlisle, Ottumwa, Allerton, Greenfield, Leon, Creston, Fontanelle,
Lenox, Indianola, Des Moines, Grinnell, Guthrie Center, Newton,
Norwalk, Adel, New Market, Earlham, Stuart, Perry, Humeston, Osceola,
Albia, and Centerville
803 PM CDT Thu Sep 3 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT SATURDAY...

* WHAT...Heat index values up to 105.

* WHERE...Portions of central and southern Iowa.

* WHEN...Until 7 PM CDT Saturday.

* 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 with warm
  lows have prompted the multi-day Heat Advisory.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

Hazard Report Provided By forecast.weather.gov