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Home Return to list Severe Thunderstorm Warning 0248 Issued by the Davenport / Quad Cities Forecast Office
Action: New Issued At: 2026-08-11 07:34:10
872
WUUS53 KDVN 111233
SVRDVN
IAC061-097-111330-
/O.NEW.KDVN.SV.W.0248.260811T1233Z-260811T1330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Quad Cities IA/IL
733 AM CDT Tue Aug 11 2026
The National Weather Service in the Quad Cities has issued a
* Severe Thunderstorm Warning for...
Northwestern Jackson County in east central Iowa...
Dubuque County in northeastern Iowa...
* Until 830 AM CDT.
* At 733 AM CDT, severe thunderstorms were located along a line
extending from near Backbone State Park to Delhi to Howard H Cherry
Scout Reservation, moving east at 55 mph.
HAZARD...70 mph wind gusts.
SOURCE...Law enforcement.
IMPACT...Expect considerable tree damage. Damage is likely to
mobile homes, roofs, and outbuildings.
* Locations impacted include...
Dubuque, Asbury, Dyersville, Bellevue, Cascade, Epworth, East
Dubuque, Farley, Peosta, New Vienna, Worthington, Holy Cross, La
Motte, Luxemburg, Rickardsville, Sherrill, Springbrook, St.
Donatus, Centralia, and Sageville.
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.
This is a DANGEROUS SITUATION. These storms are producing widespread
wind damage across eastern Iowa. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows!
&&
LAT...LON 4264 9071 4254 9064 4248 9065 4244 9057
4242 9055 4235 9044 4233 9042 4229 9043
4225 9042 4221 9036 4216 9038 4217 9090
4230 9090 4230 9113 4265 9113 4265 9090
4267 9089
TIME...MOT...LOC 1233Z 271DEG 48KT 4262 9149 4244 9135 4219 9147
TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$
Gibbs
Action: Continued Issued At: 2026-08-11 08:17:41
181
WWUS53 KDVN 111317
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
817 AM CDT Tue Aug 11 2026
IAC061-097-111330-
/O.CON.KDVN.SV.W.0248.000000T0000Z-260811T1330Z/
Jackson IA-Dubuque IA-
817 AM CDT Tue Aug 11 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 AM CDT
FOR CENTRAL JACKSON AND CENTRAL DUBUQUE COUNTIES...
At 817 AM CDT, severe thunderstorms were located along a line
extending from Mud Lake Park to Massey to near Fulton, moving east at
55 mph.
HAZARD...70 mph wind gusts.
SOURCE...Trained weather spotters.
IMPACT...Expect considerable tree damage. Damage is likely to mobile
homes, roofs, and outbuildings.
Locations impacted include...
Dubuque, Asbury, Bellevue, East Dubuque, Peosta, La Motte,
Rickardsville, Sherrill, Springbrook, St. Donatus, Centralia,
Sageville, Zwingle, Balltown, Durango, Graf, Otter Creek, South Gary
Owen, Dubuque Regional Airport, and Rockdale.
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.
This is a DANGEROUS SITUATION. These storms are producing widespread
wind damage across eastern Iowa. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows.
Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of natures leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4264 9071 4254 9064 4248 9065 4244 9057
4242 9055 4235 9044 4233 9042 4229 9043
4225 9042 4221 9036 4216 9038 4217 9090
4231 9081 4237 9081 4265 9098 4265 9090
4267 9089
TIME...MOT...LOC 1317Z 271DEG 48KT 4261 9074 4243 9060 4218 9072
TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$
Gibbs
Action: Expired Issued At: 2026-08-11 08:24:12
245
WWUS53 KDVN 111324
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
824 AM CDT Tue Aug 11 2026
IAC061-097-111333-
/O.EXP.KDVN.SV.W.0248.000000T0000Z-260811T1330Z/
Jackson IA-Dubuque IA-
824 AM CDT Tue Aug 11 2026
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL JACKSON AND CENTRAL
DUBUQUE COUNTIES WILL EXPIRE AT 830 AM CDT...
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire. However, heavy
rain is still possible with these thunderstorms.
A Severe Thunderstorm Watch remains in effect until 200 PM CDT for
northwestern Illinois...and northeastern and east central Iowa.
&&
LAT...LON 4264 9071 4254 9064 4248 9065 4244 9057
4242 9055 4235 9044 4233 9042 4229 9043
4225 9042 4221 9036 4216 9038 4217 9090
4231 9081 4237 9081 4265 9098 4265 9090
4267 9089
TIME...MOT...LOC 1323Z 271DEG 48KT 4261 9064 4243 9050 4218 9062
$$
Gibbs
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