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Home Return to list Severe Thunderstorm Warning 0231 Issued by the St. Louis Forecast Office
Action: New Issued At: 2026-08-12 17:00:56
944
WUUS53 KLSX 122200
SVRLSX
MOC183-122230-
/O.NEW.KLSX.SV.W.0231.260812T2200Z-260812T2230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service St Louis MO
500 PM CDT Wed Aug 12 2026
The National Weather Service in St Louis has issued a
* Severe Thunderstorm Warning for...
Northwestern Saint Charles County in east central Missouri...
* Until 530 PM CDT.
* At 500 PM CDT, a severe thunderstorm was located over St. Paul,
moving east at 35 mph.
HAZARD...60 mph wind gusts and small hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Wentzville, Flint Hill, Josephville, Old Monroe, St. Paul, Lake St.
Louis, OFallon, Dardenne Prairie, St. Peters, Weldon Spring
Heights, Cottleville, Weldon Spring, Kampville, St. Charles and
Harvester.
This includes the following State Parks...
First Missouri State Capitol Historic Site.
This includes Interstate 70 in Missouri between exits 208 and 229.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing damaging winds.
&&
LAT...LON 3893 9075 3891 9072 3892 9071 3891 9064
3889 9063 3887 9058 3887 9055 3889 9053
3886 9039 3883 9040 3882 9045 3876 9049
3873 9053 3870 9053 3868 9055 3868 9063
3879 9092 3888 9085 3888 9081 3891 9080
TIME...MOT...LOC 2200Z 288DEG 29KT 3883 9074
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Carney
Action: Expired Issued At: 2026-08-12 17:26:27
658
WWUS53 KLSX 122226
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
526 PM CDT Wed Aug 12 2026
MOC183-122236-
/O.EXP.KLSX.SV.W.0231.000000T0000Z-260812T2230Z/
Saint Charles MO-
526 PM CDT Wed Aug 12 2026
...SEVERE THUNDERSTORM WARNING WILL EXPIRE AT 530 PM CDT FOR
NORTHWESTERN SAINT CHARLES COUNTY...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However, gusty
winds and heavy rain are still possible with this thunderstorm.
&&
LAT...LON 3893 9075 3891 9072 3892 9071 3891 9064
3889 9063 3887 9058 3887 9055 3889 9053
3886 9039 3883 9040 3882 9045 3876 9049
3873 9053 3870 9053 3868 9055 3868 9063
3879 9092 3888 9085 3888 9081 3891 9080
TIME...MOT...LOC 2200Z 288DEG 29KT 3883 9074
$$
Carney
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