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Home Return to list Severe Thunderstorm Warning 0226 Issued by the St. Louis Forecast Office
Action: New Issued At: 2026-08-07 22:48:11
433
WUUS53 KLSX 080347
SVRLSX
ILC001-MOC111-080430-
/O.NEW.KLSX.SV.W.0226.260808T0347Z-260808T0430Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service St Louis MO
1047 PM CDT Fri Aug 7 2026
The National Weather Service in St Louis has issued a
* Severe Thunderstorm Warning for...
Northwestern Adams County in west central Illinois...
Lewis County in northeastern Missouri...
* Until 1130 PM CDT.
* At 1047 PM CDT, a severe thunderstorm was located 17 miles north of
Canton, moving south at 45 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
* Locations impacted include...
Monticello, Lewistown, Canton, Meyer, Lima, Ewing, La Grange, Ursa,
Mendon, Maywood, Quincy and Fowler.
This includes the following State Parks...
Wakonda State Park.
This includes Interstate 172 between exits 15 and 19.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing damaging winds and large
hail.
&&
LAT...LON 3995 9153 3996 9179 4026 9184 4025 9150
4024 9150 4024 9151 4023 9150 4022 9150
4021 9151 4020 9151 4020 9134 3993 9121
3994 9143 3995 9144
TIME...MOT...LOC 0346Z 337DEG 36KT 4036 9165
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
BAH
Action: Continued Issued At: 2026-08-07 23:13:12
995
WWUS53 KLSX 080412
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
1112 PM CDT Fri Aug 7 2026
ILC001-MOC111-080430-
/O.CON.KLSX.SV.W.0226.000000T0000Z-260808T0430Z/
Adams IL-Lewis MO-
1112 PM CDT Fri Aug 7 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 PM CDT
FOR NORTHWESTERN ADAMS AND CENTRAL LEWIS COUNTIES...
At 1112 PM CDT, a severe thunderstorm was located over Canton, moving
south at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Monticello, Canton, Meyer, Lima, Ewing, La Grange, Ursa, Quincy,
Maywood and Fowler.
This includes the following State Parks...
Wakonda State Park.
This includes Interstate 172 between exits 15 and 19.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing damaging winds and large
hail.
&&
LAT...LON 3995 9153 3996 9168 3996 9179 4025 9176
4025 9150 4024 9151 4023 9150 4021 9151
4020 9151 4020 9137 3993 9121 3994 9138
3994 9143 3995 9144
TIME...MOT...LOC 0347Z 338DEG 27KT 4032 9164
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MRB
Action: Cancelled Issued At: 2026-08-07 23:19:42
214
WWUS53 KLSX 080419
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
1119 PM CDT Fri Aug 7 2026
ILC001-MOC111-080429-
/O.CAN.KLSX.SV.W.0226.000000T0000Z-260808T0430Z/
Adams IL-Lewis MO-
1119 PM CDT Fri Aug 7 2026
...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR NORTHWESTERN ADAMS
AND CENTRAL LEWIS COUNTIES...
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 has been cancelled. However, small hail and
gusty winds are still possible with this thunderstorm.
&&
LAT...LON 3995 9153 3996 9168 3996 9179 4025 9176
4025 9150 4024 9151 4023 9150 4021 9151
4020 9151 4020 9137 3993 9121 3994 9138
3994 9143 3995 9144
TIME...MOT...LOC 0412Z 338DEG 27KT 4015 9155
$$
MRB
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