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Home Return to list Severe Thunderstorm Warning 0266 Issued by the Davenport / Quad Cities Forecast Office
Action: New Issued At: 2026-08-12 08:12:12
878
WUUS53 KDVN 121311
SVRDVN
ILC011-155-195-121400-
/O.NEW.KDVN.SV.W.0266.260812T1311Z-260812T1400Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Quad Cities IA/IL
811 AM CDT Wed Aug 12 2026
The National Weather Service in the Quad Cities has issued a
* Severe Thunderstorm Warning for...
Putnam County in north central Illinois...
Whiteside County in northwestern Illinois...
Bureau County in north central Illinois...
* Until 900 AM CDT.
* At 811 AM CDT, severe thunderstorms were located along a line
extending from Coleta to near Walnut to Providence, moving east at
45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Sterling, Rock Falls, Princeton, Morrison, Hennepin, Spring Valley,
Henry, Prophetstown, DePue, Granville, Walnut, Ladd, Wyanet,
Sheffield, Tiskilwa, Tampico, La Moille, Dalzell, Lyndon, and Buda.
This includes the following highways...
Interstate 80 in Illinois between mile markers 37 and 72.
Interstate 88 between mile markers 26 and 44.
Interstate 180 between mile markers 1 and 13.
This also includes Donnelley DePue State Fish and Wildlife Area,
Hennepin Canal State Trail, Morrison-Rockwood State Park,
Prophetstown State Park, and Mautino State Fish & Wildlife Area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
sturdy building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4110 8936 4115 8933 4115 8964 4123 8964
4123 8985 4158 8986 4159 8995 4193 9000
4193 8963 4159 8963 4158 8917 4110 8916
TIME...MOT...LOC 1311Z 262DEG 40KT 4190 8980 4163 8957 4127 8960
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Uttech
Action: Continued Issued At: 2026-08-12 08:47:43
795
WWUS53 KDVN 121347
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
847 AM CDT Wed Aug 12 2026
ILC195-121356-
/O.CAN.KDVN.SV.W.0266.000000T0000Z-260812T1400Z/
Whiteside IL-
847 AM CDT Wed Aug 12 2026
...THE SEVERE THUNDERSTORM WARNING FOR WHITESIDE COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 100 PM CDT for
north central Illinois.
&&
LAT...LON 4110 8936 4115 8933 4115 8952 4159 8942
4158 8917 4110 8916
TIME...MOT...LOC 1346Z 285DEG 46KT 4172 8913 4148 8899 4112 8911
$$
ILC011-155-121400-
/O.CON.KDVN.SV.W.0266.000000T0000Z-260812T1400Z/
Putnam IL-Bureau IL-
847 AM CDT Wed Aug 12 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 AM CDT
FOR PUTNAM AND EASTERN BUREAU COUNTIES...
At 846 AM CDT, severe thunderstorms were located along a line
extending from West Brooklyn to Triumph to near Lostant, moving east
at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Princeton, Hennepin, Spring Valley, Henry, DePue, Granville, Ladd, La
Moille, Dalzell, Bureau Junction, McNabb, Putnam, Mark, Cherry,
Malden, Seatonville, Magnolia, Standard, Arlington, and Dover.
This also includes Donnelley DePue State Fish and Wildlife Area.
This includes the following highways...
Interstate 80 in Illinois between mile markers 57 and 72.
Interstate 180 between mile markers 1 and 13.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted act quickly and move to a place
of safety inside a sturdy structure, such as a basement or small
interior room.
For your protection move to an interior room on the lowest floor of a
sturdy building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4110 8936 4115 8933 4115 8952 4159 8942
4158 8917 4110 8916
TIME...MOT...LOC 1346Z 285DEG 46KT 4172 8913 4148 8899 4112 8911
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Uttech
Action: Cancelled Issued At: 2026-08-12 08:47:43
795
WWUS53 KDVN 121347
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
847 AM CDT Wed Aug 12 2026
ILC195-121356-
/O.CAN.KDVN.SV.W.0266.000000T0000Z-260812T1400Z/
Whiteside IL-
847 AM CDT Wed Aug 12 2026
...THE SEVERE THUNDERSTORM WARNING FOR WHITESIDE COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 100 PM CDT for
north central Illinois.
&&
LAT...LON 4110 8936 4115 8933 4115 8952 4159 8942
4158 8917 4110 8916
TIME...MOT...LOC 1346Z 285DEG 46KT 4172 8913 4148 8899 4112 8911
$$
ILC011-155-121400-
/O.CON.KDVN.SV.W.0266.000000T0000Z-260812T1400Z/
Putnam IL-Bureau IL-
847 AM CDT Wed Aug 12 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 AM CDT
FOR PUTNAM AND EASTERN BUREAU COUNTIES...
At 846 AM CDT, severe thunderstorms were located along a line
extending from West Brooklyn to Triumph to near Lostant, moving east
at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Princeton, Hennepin, Spring Valley, Henry, DePue, Granville, Ladd, La
Moille, Dalzell, Bureau Junction, McNabb, Putnam, Mark, Cherry,
Malden, Seatonville, Magnolia, Standard, Arlington, and Dover.
This also includes Donnelley DePue State Fish and Wildlife Area.
This includes the following highways...
Interstate 80 in Illinois between mile markers 57 and 72.
Interstate 180 between mile markers 1 and 13.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted act quickly and move to a place
of safety inside a sturdy structure, such as a basement or small
interior room.
For your protection move to an interior room on the lowest floor of a
sturdy building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4110 8936 4115 8933 4115 8952 4159 8942
4158 8917 4110 8916
TIME...MOT...LOC 1346Z 285DEG 46KT 4172 8913 4148 8899 4112 8911
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Uttech
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