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WWUS53 KDMX 210024
SVSDMX

Severe Weather Statement
National Weather Service Des Moines IA
724 PM CDT Mon Jul 20 2026

IAC015-169-210033-
/O.CAN.KDMX.SV.W.0290.000000T0000Z-260721T0030Z/
Story IA-Boone IA-
724 PM CDT Mon Jul 20 2026

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN STORY AND
SOUTHEASTERN BOONE COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 1000 PM CDT for central Iowa.

LAT...LON 4174 9307 4166 9343 4170 9381 4186 9382
      4186 9319
TIME...MOT...LOC 0023Z 334DEG 27KT 4175 9312 4163 9341 4173 9388 

$$

IAC099-153-210030-
/O.CON.KDMX.SV.W.0290.000000T0000Z-260721T0030Z/
Polk IA-Jasper IA-
724 PM CDT Mon Jul 20 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR NORTHERN POLK AND NORTHWESTERN JASPER COUNTIES...

At 723 PM CDT, severe thunderstorms were located along a line
extending from near Lambs Grove to near Altoona to near Granger,
moving southeast at 30 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Public reports of 60 mph wind gusts in Ankeny.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Ankeny, Johnston, Altoona, Grimes, Bondurant, Polk City, Saylorville,
Mitchellville, Granger, Baxter, Big Creek Lake, Saylorville Lake,
Elkhart, Alleman, Sheldahl, Mingo, Valeria, Big Creek State Park,
Ankeny Regional Airport, and Margo Frankel Woods State Park.

This includes the following highways...
 Interstate 35 between mile markers 90 and 101.
 Interstate 80 between mile markers 145 and 150.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 PM CDT for central Iowa.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4174 9307 4166 9343 4170 9381 4186 9382
      4186 9319
TIME...MOT...LOC 0023Z 334DEG 27KT 4175 9312 4163 9341 4173 9388 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...OBSERVED
MAX WIND GUST...60 MPH

$$

Dodson