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Home Return to list Severe Thunderstorm Warning 0321 Issued by the Des Moines Forecast Office
Action: New Issued At: 2026-08-13 05:52:06
801
WUUS53 KDMX 131051
SVRDMX
IAC015-027-049-073-077-153-131130-
/O.NEW.KDMX.SV.W.0321.260813T1051Z-260813T1130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Des Moines IA
551 AM CDT Thu Aug 13 2026
The National Weather Service in Des Moines has issued a
* Severe Thunderstorm Warning for...
Northwestern Polk County in central Iowa...
Greene County in west central Iowa...
Guthrie County in west central Iowa...
Boone County in central Iowa...
Southeastern Carroll County in west central Iowa...
Dallas County in central Iowa...
* Until 630 AM CDT.
* At 551 AM CDT, severe thunderstorms were located along a line
extending from 4 miles north of Carroll to 5 miles south of
Jefferson to near Adair, moving east at 55 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
West Des Moines, Urbandale, Clive, Waukee, Boone, Grimes, Perry,
Jefferson, Adel, Guthrie Center, Madrid, Ogden, Dallas Center,
Granger, Panora, De Soto, Woodward, Van Meter, Lake Panorama, and
Big Creek Lake.
This includes Interstate 80 between mile markers 111 and 120.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4191 9464 4205 9467 4219 9371 4193 9370
4152 9383 4158 9470 4160 9470 4160 9471
TIME...MOT...LOC 1051Z 265DEG 49KT 4213 9488 4193 9438 4155 9466
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Hahn
Action: Continued Issued At: 2026-08-13 06:06:36
178
WWUS53 KDMX 131106
SVSDMX
Severe Weather Statement
National Weather Service Des Moines IA
606 AM CDT Thu Aug 13 2026
IAC027-131115-
/O.CAN.KDMX.SV.W.0321.000000T0000Z-260813T1130Z/
Carroll IA-
606 AM CDT Thu Aug 13 2026
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CARROLL COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 800 AM CDT for
west central Iowa. A Severe Thunderstorm Watch also remains in effect
until 1100 AM CDT for central Iowa.
LAT...LON 4187 9439 4206 9458 4219 9371 4193 9370
4152 9383 4164 9452
TIME...MOT...LOC 1105Z 265DEG 49KT 4214 9466 4194 9416 4156 9444
$$
IAC015-049-073-077-153-131130-
/O.CON.KDMX.SV.W.0321.000000T0000Z-260813T1130Z/
Polk IA-Greene IA-Guthrie IA-Boone IA-Dallas IA-
606 AM CDT Thu Aug 13 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 AM CDT
FOR NORTHWESTERN POLK...SOUTHERN GREENE...NORTHEASTERN GUTHRIE...
BOONE AND DALLAS COUNTIES...
At 605 AM CDT, severe thunderstorms were located along a line
extending from near Hobbs County Park to near Rippey to near Menlo,
moving east at 55 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
West Des Moines, Urbandale, Clive, Waukee, Boone, Grimes, Perry,
Jefferson, Adel, Guthrie Center, Madrid, Ogden, Dallas Center,
Granger, Panora, Woodward, Lake Panorama, Big Creek Lake, Boone
Speedway, and Saylorville Lake.
This includes Interstate 80 between mile markers 114 and 120.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4187 9439 4206 9458 4219 9371 4193 9370
4152 9383 4164 9452
TIME...MOT...LOC 1105Z 265DEG 49KT 4214 9466 4194 9416 4156 9444
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Hahn
Action: Cancelled Issued At: 2026-08-13 06:06:36
178
WWUS53 KDMX 131106
SVSDMX
Severe Weather Statement
National Weather Service Des Moines IA
606 AM CDT Thu Aug 13 2026
IAC027-131115-
/O.CAN.KDMX.SV.W.0321.000000T0000Z-260813T1130Z/
Carroll IA-
606 AM CDT Thu Aug 13 2026
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CARROLL COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 800 AM CDT for
west central Iowa. A Severe Thunderstorm Watch also remains in effect
until 1100 AM CDT for central Iowa.
LAT...LON 4187 9439 4206 9458 4219 9371 4193 9370
4152 9383 4164 9452
TIME...MOT...LOC 1105Z 265DEG 49KT 4214 9466 4194 9416 4156 9444
$$
IAC015-049-073-077-153-131130-
/O.CON.KDMX.SV.W.0321.000000T0000Z-260813T1130Z/
Polk IA-Greene IA-Guthrie IA-Boone IA-Dallas IA-
606 AM CDT Thu Aug 13 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 AM CDT
FOR NORTHWESTERN POLK...SOUTHERN GREENE...NORTHEASTERN GUTHRIE...
BOONE AND DALLAS COUNTIES...
At 605 AM CDT, severe thunderstorms were located along a line
extending from near Hobbs County Park to near Rippey to near Menlo,
moving east at 55 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
West Des Moines, Urbandale, Clive, Waukee, Boone, Grimes, Perry,
Jefferson, Adel, Guthrie Center, Madrid, Ogden, Dallas Center,
Granger, Panora, Woodward, Lake Panorama, Big Creek Lake, Boone
Speedway, and Saylorville Lake.
This includes Interstate 80 between mile markers 114 and 120.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4187 9439 4206 9458 4219 9371 4193 9370
4152 9383 4164 9452
TIME...MOT...LOC 1105Z 265DEG 49KT 4214 9466 4194 9416 4156 9444
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Hahn
Action: Cancelled Issued At: 2026-08-13 06:18:36
596
WWUS53 KDMX 131118
SVSDMX
Severe Weather Statement
National Weather Service Des Moines IA
618 AM CDT Thu Aug 13 2026
IAC073-131127-
/O.CAN.KDMX.SV.W.0321.000000T0000Z-260813T1130Z/
Greene IA-
618 AM CDT Thu Aug 13 2026
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN GREENE COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 800 AM CDT for
west central Iowa. A Severe Thunderstorm Watch also remains in effect
until 1100 AM CDT for central Iowa.
LAT...LON 4187 9415 4209 9416 4219 9371 4193 9370
4152 9383 4160 9427
TIME...MOT...LOC 1117Z 265DEG 49KT 4215 9447 4195 9397 4157 9425
$$
IAC015-049-077-153-131130-
/O.CON.KDMX.SV.W.0321.000000T0000Z-260813T1130Z/
Polk IA-Guthrie IA-Boone IA-Dallas IA-
618 AM CDT Thu Aug 13 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 AM CDT
FOR NORTHWESTERN POLK...SOUTHEASTERN GUTHRIE...BOONE AND DALLAS
COUNTIES...
At 617 AM CDT, severe thunderstorms were located along a line
extending from Churdan to 5 miles southwest of Ledges State Park to
Diamondhead Lake, moving east at 55 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
West Des Moines, Urbandale, Clive, Waukee, Boone, Grimes, Perry,
Adel, Madrid, Ogden, Dallas Center, Granger, Woodward, Big Creek
Lake, Boone Speedway, Saylorville Lake, Redfield, Minburn, Bouton,
and Luther.
This includes Interstate 80 between mile markers 114 and 120.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4187 9415 4209 9416 4219 9371 4193 9370
4152 9383 4160 9427
TIME...MOT...LOC 1117Z 265DEG 49KT 4215 9447 4195 9397 4157 9425
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Hahn
Action: Continued Issued At: 2026-08-13 06:18:36
596
WWUS53 KDMX 131118
SVSDMX
Severe Weather Statement
National Weather Service Des Moines IA
618 AM CDT Thu Aug 13 2026
IAC073-131127-
/O.CAN.KDMX.SV.W.0321.000000T0000Z-260813T1130Z/
Greene IA-
618 AM CDT Thu Aug 13 2026
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN GREENE COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 800 AM CDT for
west central Iowa. A Severe Thunderstorm Watch also remains in effect
until 1100 AM CDT for central Iowa.
LAT...LON 4187 9415 4209 9416 4219 9371 4193 9370
4152 9383 4160 9427
TIME...MOT...LOC 1117Z 265DEG 49KT 4215 9447 4195 9397 4157 9425
$$
IAC015-049-077-153-131130-
/O.CON.KDMX.SV.W.0321.000000T0000Z-260813T1130Z/
Polk IA-Guthrie IA-Boone IA-Dallas IA-
618 AM CDT Thu Aug 13 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 AM CDT
FOR NORTHWESTERN POLK...SOUTHEASTERN GUTHRIE...BOONE AND DALLAS
COUNTIES...
At 617 AM CDT, severe thunderstorms were located along a line
extending from Churdan to 5 miles southwest of Ledges State Park to
Diamondhead Lake, moving east at 55 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
West Des Moines, Urbandale, Clive, Waukee, Boone, Grimes, Perry,
Adel, Madrid, Ogden, Dallas Center, Granger, Woodward, Big Creek
Lake, Boone Speedway, Saylorville Lake, Redfield, Minburn, Bouton,
and Luther.
This includes Interstate 80 between mile markers 114 and 120.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4187 9415 4209 9416 4219 9371 4193 9370
4152 9383 4160 9427
TIME...MOT...LOC 1117Z 265DEG 49KT 4215 9447 4195 9397 4157 9425
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Hahn
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