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Home Return to list Severe Thunderstorm Warning 0172 Issued by the Des Moines Forecast Office
Action: New Issued At: 2026-05-17 21:31:10
928
WUUS53 KDMX 180231
SVRDMX
IAC001-003-029-180330-
/O.NEW.KDMX.SV.W.0172.260518T0231Z-260518T0330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Des Moines IA
931 PM CDT Sun May 17 2026
The National Weather Service in Des Moines has issued a
* Severe Thunderstorm Warning for...
Cass County in southwestern Iowa...
Northwestern Adams County in southwestern Iowa...
Adair County in southwestern Iowa...
* Until 1030 PM CDT.
* At 930 PM CDT, severe thunderstorms were located along a line
extending from 4 miles east of Walnut to 7 miles southwest of Marne
to 5 miles southwest of Elliott, moving east at 55 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Atlantic, Greenfield, Griswold, Lake Icaria, Anita, Adair,
Fontanelle, Lewis, Massena, Cumberland, Bridgewater, Marne, Wiota,
Nodaway, Carbon, Lake Anita State Park, Greenfield Municipal
Airport, Nodaway Park, Griswold Park, and Cold Springs State Park.
This includes Interstate 80 between mile markers 50 and 90, and near
mile marker 92.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Intense thunderstorm lines can produce brief tornadoes and
widespread significant wind damage. Although a tornado is not
immediately likely, it is best to move to an interior room on the
lowest floor of a building. These storms may cause serious injury
and significant property damage.
A Tornado Watch remains in effect until 300 AM CDT for southwestern
Iowa.
&&
LAT...LON 4116 9493 4116 9516 4150 9515 4150 9434
4118 9447 4091 9493
TIME...MOT...LOC 0230Z 265DEG 48KT 4151 9515 4138 9521 4111 9525
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Fowle
Action: Continued Issued At: 2026-05-17 22:02:11
752
WWUS53 KDMX 180301
SVSDMX
Severe Weather Statement
National Weather Service Des Moines IA
1001 PM CDT Sun May 17 2026
IAC001-003-029-180330-
/O.CON.KDMX.SV.W.0172.000000T0000Z-260518T0330Z/
Cass IA-Adams IA-Adair IA-
1001 PM CDT Sun May 17 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT
FOR CASS...NORTHWESTERN ADAMS AND WESTERN ADAIR COUNTIES...
At 1001 PM CDT, severe thunderstorms were located along a line
extending from near Adair to 6 miles north of Bridgewater to near
Hacklebarney Woods County Park, moving east at 50 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Atlantic, Greenfield, Griswold, Lake Icaria, Anita, Adair,
Fontanelle, Lewis, Massena, Cumberland, Bridgewater, Marne, Wiota,
Nodaway, Carbon, Lake Anita State Park, Greenfield Municipal Airport,
Nodaway Park, Griswold Park, and Cold Springs State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 300 AM CDT for southwestern
Iowa.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4149 9515 4149 9435 4118 9448 4091 9493
4116 9493 4116 9516
TIME...MOT...LOC 0301Z 281DEG 44KT 4150 9470 4133 9471 4102 9493
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Fowle
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