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Home Return to list Severe Thunderstorm Warning 0179 Issued by the Des Moines Forecast Office
Action: New Issued At: 2026-05-18 20:09:03
479
WUUS53 KDMX 190108
SVRDMX
IAC099-127-153-169-190200-
/O.NEW.KDMX.SV.W.0179.260519T0108Z-260519T0200Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Des Moines IA
808 PM CDT Mon May 18 2026
The National Weather Service in Des Moines has issued a
* Severe Thunderstorm Warning for...
Northeastern Polk County in central Iowa...
Southeastern Story County in central Iowa...
Marshall County in central Iowa...
Northwestern Jasper County in central Iowa...
* Until 900 PM CDT.
* At 808 PM CDT, a severe thunderstorm was located over Valeria, or
10 miles northeast of Altoona, moving northeast at 45 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Marshalltown, State Center, Baxter, Maxwell, Melbourne, Gilman,
Albion, Collins, Rhodes, Mingo, Laurel, Haverhill, and Ferguson.
This includes Interstate 80 between mile markers 157 and 159.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
A Tornado Watch remains in effect until 1000 PM CDT for central Iowa.
&&
LAT...LON 4167 9319 4188 9346 4216 9303 4191 9276
4186 9277
TIME...MOT...LOC 0108Z 237DEG 39KT 4174 9331
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Donavon
Action: Continued Issued At: 2026-05-18 20:37:35
273
WWUS53 KDMX 190136
SVSDMX
Severe Weather Statement
National Weather Service Des Moines IA
836 PM CDT Mon May 18 2026
IAC153-190145-
/O.CAN.KDMX.SV.W.0179.000000T0000Z-260519T0200Z/
Polk IA-
836 PM CDT Mon May 18 2026
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN POLK COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 1000 PM CDT for central Iowa.
LAT...LON 4171 9310 4198 9330 4216 9303 4191 9276
4186 9277
TIME...MOT...LOC 0135Z 236DEG 36KT 4188 9302
$$
IAC099-127-169-190200-
/O.CON.KDMX.SV.W.0179.000000T0000Z-260519T0200Z/
Story IA-Marshall IA-Jasper IA-
836 PM CDT Mon May 18 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM CDT
FOR EAST CENTRAL STORY...MARSHALL AND NORTH CENTRAL JASPER
COUNTIES...
At 835 PM CDT, a severe thunderstorm was located near Laurel, or 12
miles southwest of Marshalltown, moving northeast at 40 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Marshalltown, State Center, Baxter, Melbourne, Gilman, Albion,
Rhodes, Laurel, Haverhill, and Ferguson.
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 4171 9310 4198 9330 4216 9303 4191 9276
4186 9277
TIME...MOT...LOC 0135Z 236DEG 36KT 4188 9302
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Donavon
Action: Cancelled Issued At: 2026-05-18 20:37:35
273
WWUS53 KDMX 190136
SVSDMX
Severe Weather Statement
National Weather Service Des Moines IA
836 PM CDT Mon May 18 2026
IAC153-190145-
/O.CAN.KDMX.SV.W.0179.000000T0000Z-260519T0200Z/
Polk IA-
836 PM CDT Mon May 18 2026
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN POLK COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 1000 PM CDT for central Iowa.
LAT...LON 4171 9310 4198 9330 4216 9303 4191 9276
4186 9277
TIME...MOT...LOC 0135Z 236DEG 36KT 4188 9302
$$
IAC099-127-169-190200-
/O.CON.KDMX.SV.W.0179.000000T0000Z-260519T0200Z/
Story IA-Marshall IA-Jasper IA-
836 PM CDT Mon May 18 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM CDT
FOR EAST CENTRAL STORY...MARSHALL AND NORTH CENTRAL JASPER
COUNTIES...
At 835 PM CDT, a severe thunderstorm was located near Laurel, or 12
miles southwest of Marshalltown, moving northeast at 40 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Marshalltown, State Center, Baxter, Melbourne, Gilman, Albion,
Rhodes, Laurel, Haverhill, and Ferguson.
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 4171 9310 4198 9330 4216 9303 4191 9276
4186 9277
TIME...MOT...LOC 0135Z 236DEG 36KT 4188 9302
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Donavon
Action: Expired Issued At: 2026-05-18 20:54:05
741
WWUS53 KDMX 190153
SVSDMX
Severe Weather Statement
National Weather Service Des Moines IA
853 PM CDT Mon May 18 2026
IAC099-127-169-190203-
/O.EXP.KDMX.SV.W.0179.000000T0000Z-260519T0200Z/
Story IA-Marshall IA-Jasper IA-
853 PM CDT Mon May 18 2026
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL STORY...MARSHALL
AND NORTH CENTRAL JASPER COUNTIES WILL EXPIRE AT 900 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However, gusty
winds are still possible with this thunderstorm.
A Tornado Watch remains in effect until 1000 PM CDT for central Iowa.
LAT...LON 4171 9310 4198 9330 4216 9303 4191 9276
4186 9277
TIME...MOT...LOC 0153Z 237DEG 39KT 4198 9282
$$
Donavon
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