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Home Return to list Severe Thunderstorm Warning 0300 Issued by the Des Moines Forecast Office
Action: New Issued At: 2026-08-05 00:07:06
253
WUUS53 KDMX 050507
SVRDMX
IAC001-003-029-050545-
/O.NEW.KDMX.SV.W.0300.260805T0507Z-260805T0545Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Des Moines IA
1207 AM CDT Wed Aug 5 2026
The National Weather Service in Des Moines has issued a
* Severe Thunderstorm Warning for...
Southern Cass County in southwestern Iowa...
Adams County in southwestern Iowa...
Southwestern Adair County in southwestern Iowa...
* Until 1245 AM CDT.
* At 1206 AM CDT, a severe thunderstorm was located near Grant, or 11
miles northeast of Red Oak, moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Greenfield, Corning, Lenox, Griswold, Lake Icaria, Fontanelle,
Lewis, Massena, Cumberland, Prescott, Bridgewater, Nodaway, Kent,
Carbon, Nodaway Park, Corning Municipal Airport, Lake Icaria State
Park, Cold Springs State Park, and Griswold Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4090 9492 4116 9493 4116 9516 4134 9515
4133 9447 4090 9447
TIME...MOT...LOC 0506Z 269DEG 39KT 4109 9503
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Donavon
Action: Continued Issued At: 2026-08-05 00:27:37
750
WWUS53 KDMX 050527
SVSDMX
Severe Weather Statement
National Weather Service Des Moines IA
1227 AM CDT Wed Aug 5 2026
IAC001-003-029-050545-
/O.CON.KDMX.SV.W.0300.000000T0000Z-260805T0545Z/
Cass IA-Adams IA-Adair IA-
1227 AM CDT Wed Aug 5 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT
FOR SOUTHERN CASS...ADAMS AND SOUTHWESTERN ADAIR COUNTIES...
At 1226 AM CDT, a severe thunderstorm was located over Lake Icaria,
or 6 miles north of Corning, moving east at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Greenfield, Corning, Lenox, Griswold, Lake Icaria, Fontanelle, Lewis,
Massena, Cumberland, Prescott, Bridgewater, Nodaway, Kent, Carbon,
Nodaway Park, Corning Municipal Airport, Lake Icaria State Park, Cold
Springs State Park, and Griswold Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4090 9492 4116 9493 4116 9516 4134 9515
4133 9447 4090 9447
TIME...MOT...LOC 0526Z 268DEG 37KT 4109 9477
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Donavon
Action: Expired Issued At: 2026-08-05 00:44:37
259
WWUS53 KDMX 050544
SVSDMX
Severe Weather Statement
National Weather Service Des Moines IA
1244 AM CDT Wed Aug 5 2026
IAC001-003-029-050553-
/O.EXP.KDMX.SV.W.0300.000000T0000Z-260805T0545Z/
Cass IA-Adams IA-Adair IA-
1244 AM CDT Wed Aug 5 2026
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN CASS...ADAMS AND
SOUTHWESTERN ADAIR COUNTIES WILL EXPIRE AT 1245 AM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.
LAT...LON 4090 9492 4116 9493 4116 9516 4134 9515
4133 9447 4090 9447
TIME...MOT...LOC 0543Z 269DEG 39KT 4109 9454
$$
Donavon
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