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Home Return to list Severe Thunderstorm Warning 0249 Issued by the Davenport / Quad Cities Forecast Office
Action: New Issued At: 2026-08-11 07:59:41
610
WUUS53 KDVN 111259
SVRDVN
IAC045-097-105-111400-
/O.NEW.KDVN.SV.W.0249.260811T1259Z-260811T1400Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Quad Cities IA/IL
759 AM CDT Tue Aug 11 2026
The National Weather Service in the Quad Cities has issued a
* Severe Thunderstorm Warning for...
Southern Jackson County in east central Iowa...
Southeastern Jones County in east central Iowa...
Clinton County in east central Iowa...
* Until 900 AM CDT.
* At 759 AM CDT, severe thunderstorms were located along a line
extending from Otter Creek to Maquoketa Caves State Park to Center
Junction, moving southeast at 40 mph.
HAZARD...70 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to
mobile homes, roofs, and outbuildings.
* Locations impacted include...
Clinton, Maquoketa, Preston, Sabula, Delmar, Wyoming, Oxford
Junction, Lost Nation, Miles, Andrew, Charlotte, Onslow, Welton,
Monmouth, Springbrook, Center Junction, Andover, Spragueville,
Fulton, and Hurstville.
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 4221 9035 4215 9021 4213 9020 4212 9016
4206 9017 4200 9014 4196 9016 4190 9015
4186 9017 4185 9077 4194 9090 4195 9090
4195 9091 4210 9114 4218 9088 4217 9074
4217 9039 4221 9036
TIME...MOT...LOC 1259Z 301DEG 34KT 4223 9068 4210 9078 4209 9108
TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$
Uttech
Action: Continued Issued At: 2026-08-11 08:24:56
251
WWUS53 KDVN 111324 RRA
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
824 AM CDT Tue Aug 11 2026
IAC105-111333-
/O.CAN.KDVN.SV.W.0249.000000T0000Z-260811T1400Z/
Jones IA-
824 AM CDT Tue Aug 11 2026
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN JONES COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 200 PM CDT for
northwestern Illinois...and east central Iowa.
&&
LAT...LON 4220 9033 4215 9021 4213 9020 4212 9016
4206 9017 4200 9014 4196 9016 4191 9015
4186 9017 4185 9077 4194 9090 4198 9090
4206 9088 4218 9088 4217 9074 4217 9039
4221 9036
TIME...MOT...LOC 1323Z 305DEG 39KT 4211 9042 4193 9051 4186 9071
$$
IAC045-097-111400-
/O.CON.KDVN.SV.W.0249.000000T0000Z-260811T1400Z/
Jackson IA-Clinton IA-
824 AM CDT Tue Aug 11 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 AM CDT
FOR SOUTHERN JACKSON AND CLINTON COUNTIES...
At 823 AM CDT, severe thunderstorms were located along a line
extending from near Spragueville to near Charlotte to near Calamus,
moving southeast at 45 mph.
HAZARD...70 mph wind gusts.
SOURCE...Radar indicated. This line of storms has a history of
producing wind damage across portions of eastern Iowa.
IMPACT...Expect considerable tree damage. Damage is likely to mobile
homes, roofs, and outbuildings.
Locations impacted include...
Clinton, Maquoketa, Preston, Sabula, Delmar, Lost Nation, Miles,
Andrew, Charlotte, Welton, Monmouth, Springbrook, Andover,
Spragueville, Fulton, Hurstville, Green Island, Nashville, Van Buren,
and Goose Lake.
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.
This is a DANGEROUS SITUATION. These storms are producing widespread
wind damage across portions of eastern Iowa. SEEK SHELTER NOW inside
a sturdy structure and stay away from windows.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4220 9033 4215 9021 4213 9020 4212 9016
4206 9017 4200 9014 4196 9016 4191 9015
4186 9017 4185 9077 4194 9090 4198 9090
4206 9088 4218 9088 4217 9074 4217 9039
4221 9036
TIME...MOT...LOC 1323Z 305DEG 39KT 4211 9042 4193 9051 4186 9071
TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...70 MPH
$$
Uttech
Action: Cancelled Issued At: 2026-08-11 08:24:56
251
WWUS53 KDVN 111324 RRA
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
824 AM CDT Tue Aug 11 2026
IAC105-111333-
/O.CAN.KDVN.SV.W.0249.000000T0000Z-260811T1400Z/
Jones IA-
824 AM CDT Tue Aug 11 2026
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN JONES COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 200 PM CDT for
northwestern Illinois...and east central Iowa.
&&
LAT...LON 4220 9033 4215 9021 4213 9020 4212 9016
4206 9017 4200 9014 4196 9016 4191 9015
4186 9017 4185 9077 4194 9090 4198 9090
4206 9088 4218 9088 4217 9074 4217 9039
4221 9036
TIME...MOT...LOC 1323Z 305DEG 39KT 4211 9042 4193 9051 4186 9071
$$
IAC045-097-111400-
/O.CON.KDVN.SV.W.0249.000000T0000Z-260811T1400Z/
Jackson IA-Clinton IA-
824 AM CDT Tue Aug 11 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 AM CDT
FOR SOUTHERN JACKSON AND CLINTON COUNTIES...
At 823 AM CDT, severe thunderstorms were located along a line
extending from near Spragueville to near Charlotte to near Calamus,
moving southeast at 45 mph.
HAZARD...70 mph wind gusts.
SOURCE...Radar indicated. This line of storms has a history of
producing wind damage across portions of eastern Iowa.
IMPACT...Expect considerable tree damage. Damage is likely to mobile
homes, roofs, and outbuildings.
Locations impacted include...
Clinton, Maquoketa, Preston, Sabula, Delmar, Lost Nation, Miles,
Andrew, Charlotte, Welton, Monmouth, Springbrook, Andover,
Spragueville, Fulton, Hurstville, Green Island, Nashville, Van Buren,
and Goose Lake.
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.
This is a DANGEROUS SITUATION. These storms are producing widespread
wind damage across portions of eastern Iowa. SEEK SHELTER NOW inside
a sturdy structure and stay away from windows.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4220 9033 4215 9021 4213 9020 4212 9016
4206 9017 4200 9014 4196 9016 4191 9015
4186 9017 4185 9077 4194 9090 4198 9090
4206 9088 4218 9088 4217 9074 4217 9039
4221 9036
TIME...MOT...LOC 1323Z 305DEG 39KT 4211 9042 4193 9051 4186 9071
TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...70 MPH
$$
Uttech
Action: Continued Issued At: 2026-08-11 08:46:42
867
WWUS53 KDVN 111346
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
846 AM CDT Tue Aug 11 2026
IAC045-097-111400-
/O.CON.KDVN.SV.W.0249.000000T0000Z-260811T1400Z/
Jackson IA-Clinton IA-
846 AM CDT Tue Aug 11 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 AM CDT
FOR SOUTHEASTERN JACKSON AND NORTHEASTERN CLINTON COUNTIES...
At 844 AM CDT, severe thunderstorms were located along a line
extending from Camp Miss-Elk-Ton to near Clinton Municipal Airport to
near McCausland, moving southeast at 40 mph.
HAZARD...70 mph wind gusts.
SOURCE...Trained weather spotters. This line of storms has a history
of producing wind damage across portions of eastern Iowa
including downed trees around Maquoketa.
IMPACT...Expect considerable tree damage. Damage is likely to mobile
homes, roofs, and outbuildings.
Locations impacted include...
Clinton, Fulton, Preston, Sabula, Miles, Charlotte, Andover,
Spragueville, Green Island, Van Buren, Goose Lake, Bryant, Bulgers
Hollow, Teeds Grove, Elvira, Reeceville, South Sabula Lake Park, and
Camp Miss-Elk-Ton.
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.
This is a DANGEROUS SITUATION. These storms are producing widespread
wind damage across portions of eastern Iowa. SEEK SHELTER NOW inside
a sturdy structure and stay away from windows.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4220 9033 4215 9021 4213 9020 4212 9016
4206 9017 4200 9014 4196 9016 4191 9015
4186 9017 4185 9058 4205 9044 4221 9036
TIME...MOT...LOC 1344Z 301DEG 34KT 4201 9020 4183 9029 4176 9049
TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...70 MPH
$$
Uttech
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