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Home Return to list Severe Thunderstorm Warning 0274 Issued by the Davenport / Quad Cities Forecast Office
Action: New Issued At: 2026-08-15 17:42:00
113
WUUS53 KDVN 152241
SVRDVN
ILC067-IAC111-177-MOC045-152345-
/O.NEW.KDVN.SV.W.0274.260815T2241Z-260815T2345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Quad Cities IA/IL
541 PM CDT Sat Aug 15 2026
The National Weather Service in the Quad Cities has issued a
* Severe Thunderstorm Warning for...
Northwestern Hancock County in west central Illinois...
Southeastern Van Buren County in southeastern Iowa...
Lee County in southeastern Iowa...
Northern Clark County in northeastern Missouri...
* Until 645 PM CDT.
* At 541 PM CDT, severe thunderstorms were located along a line
extending from near Primrose to near Shimek State Forest to
Chambersburg, moving east at 25 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Fort Madison, Keokuk, Nauvoo, West Point, Donnellson, Montrose,
Franklin, New Boston, Croton, Niota, Farmington, Pontoosuc, Revere,
Charleston, Keokuk Airport, Nauvoo State Park, Lee County
Fairgrounds, Chambersburg, Sawyer, and Wever.
This also includes Nauvoo State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
sturdy building.
&&
LAT...LON 4053 9192 4067 9177 4074 9167 4072 9121
4071 9121 4072 9120 4071 9118 4072 9118
4072 9116 4056 9123 4042 9133
TIME...MOT...LOC 2241Z 276DEG 24KT 4071 9162 4061 9164 4054 9178
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Uttech
Action: Continued Issued At: 2026-08-15 17:54:30
492
WWUS53 KDVN 152254
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
554 PM CDT Sat Aug 15 2026
IAC177-152304-
/O.CAN.KDVN.SV.W.0274.000000T0000Z-260815T2345Z/
Van Buren IA-
554 PM CDT Sat Aug 15 2026
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN VAN BUREN COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
&&
LAT...LON 4054 9181 4060 9174 4061 9173 4060 9172
4062 9172 4074 9164 4072 9121 4071 9121
4072 9120 4071 9118 4072 9118 4072 9116
4056 9123 4043 9132
TIME...MOT...LOC 2254Z 261DEG 25KT 4061 9155
$$
ILC067-IAC111-MOC045-152345-
/O.CON.KDVN.SV.W.0274.000000T0000Z-260815T2345Z/
Hancock IL-Lee IA-Clark MO-
554 PM CDT Sat Aug 15 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR NORTHWESTERN HANCOCK...LEE AND NORTH CENTRAL CLARK COUNTIES...
At 554 PM CDT, a severe thunderstorm was located over Charleston, or
9 miles northwest of Nauvoo, moving east at 30 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Fort Madison, Nauvoo, West Point, Donnellson, Montrose, Franklin, New
Boston, Croton, Niota, Pontoosuc, Charleston, Keokuk Airport, Nauvoo
State Park, Lee County Fairgrounds, Sawyer, Wever, Primrose, Bluff
Park, Galland, and Pollmiller Park.
This also includes Nauvoo State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
sturdy building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4054 9181 4060 9174 4061 9173 4060 9172
4062 9172 4074 9164 4072 9121 4071 9121
4072 9120 4071 9118 4072 9118 4072 9116
4056 9123 4043 9132
TIME...MOT...LOC 2254Z 261DEG 25KT 4061 9155
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Uttech
Action: Cancelled Issued At: 2026-08-15 17:54:30
492
WWUS53 KDVN 152254
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
554 PM CDT Sat Aug 15 2026
IAC177-152304-
/O.CAN.KDVN.SV.W.0274.000000T0000Z-260815T2345Z/
Van Buren IA-
554 PM CDT Sat Aug 15 2026
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN VAN BUREN COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
&&
LAT...LON 4054 9181 4060 9174 4061 9173 4060 9172
4062 9172 4074 9164 4072 9121 4071 9121
4072 9120 4071 9118 4072 9118 4072 9116
4056 9123 4043 9132
TIME...MOT...LOC 2254Z 261DEG 25KT 4061 9155
$$
ILC067-IAC111-MOC045-152345-
/O.CON.KDVN.SV.W.0274.000000T0000Z-260815T2345Z/
Hancock IL-Lee IA-Clark MO-
554 PM CDT Sat Aug 15 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR NORTHWESTERN HANCOCK...LEE AND NORTH CENTRAL CLARK COUNTIES...
At 554 PM CDT, a severe thunderstorm was located over Charleston, or
9 miles northwest of Nauvoo, moving east at 30 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Fort Madison, Nauvoo, West Point, Donnellson, Montrose, Franklin, New
Boston, Croton, Niota, Pontoosuc, Charleston, Keokuk Airport, Nauvoo
State Park, Lee County Fairgrounds, Sawyer, Wever, Primrose, Bluff
Park, Galland, and Pollmiller Park.
This also includes Nauvoo State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
sturdy building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4054 9181 4060 9174 4061 9173 4060 9172
4062 9172 4074 9164 4072 9121 4071 9121
4072 9120 4071 9118 4072 9118 4072 9116
4056 9123 4043 9132
TIME...MOT...LOC 2254Z 261DEG 25KT 4061 9155
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Uttech
Action: Continued Issued At: 2026-08-15 18:08:01
893
WWUS53 KDVN 152307
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
607 PM CDT Sat Aug 15 2026
MOC045-152316-
/O.CAN.KDVN.SV.W.0274.000000T0000Z-260815T2345Z/
Clark MO-
607 PM CDT Sat Aug 15 2026
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL CLARK COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has weakened and
moved out of the warned area. Therefore, the warning has been
cancelled.
&&
LAT...LON 4049 9159 4051 9162 4054 9162 4055 9168
4058 9169 4060 9172 4062 9172 4071 9166
4070 9117 4058 9122 4043 9132
TIME...MOT...LOC 2306Z 276DEG 24KT 4060 9144
$$
ILC067-IAC111-152345-
/O.CON.KDVN.SV.W.0274.000000T0000Z-260815T2345Z/
Hancock IL-Lee IA-
607 PM CDT Sat Aug 15 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR NORTHWESTERN HANCOCK AND CENTRAL LEE COUNTIES...
At 606 PM CDT, a severe thunderstorm was located near Wilson Lake, or
near Fort Madison, moving east at 30 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Fort Madison, Nauvoo, West Point, Donnellson, Montrose, Franklin, New
Boston, Croton, Niota, Pontoosuc, Charleston, Keokuk Airport, Nauvoo
State Park, Lee County Fairgrounds, Sawyer, Primrose, Bluff Park,
Galland, Sandusky, and Argyle.
This also includes Nauvoo State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
sturdy building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4049 9159 4051 9162 4054 9162 4055 9168
4058 9169 4060 9172 4062 9172 4071 9166
4070 9117 4058 9122 4043 9132
TIME...MOT...LOC 2306Z 276DEG 24KT 4060 9144
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Gunkel
Action: Cancelled Issued At: 2026-08-15 18:08:01
893
WWUS53 KDVN 152307
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
607 PM CDT Sat Aug 15 2026
MOC045-152316-
/O.CAN.KDVN.SV.W.0274.000000T0000Z-260815T2345Z/
Clark MO-
607 PM CDT Sat Aug 15 2026
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL CLARK COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has weakened and
moved out of the warned area. Therefore, the warning has been
cancelled.
&&
LAT...LON 4049 9159 4051 9162 4054 9162 4055 9168
4058 9169 4060 9172 4062 9172 4071 9166
4070 9117 4058 9122 4043 9132
TIME...MOT...LOC 2306Z 276DEG 24KT 4060 9144
$$
ILC067-IAC111-152345-
/O.CON.KDVN.SV.W.0274.000000T0000Z-260815T2345Z/
Hancock IL-Lee IA-
607 PM CDT Sat Aug 15 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR NORTHWESTERN HANCOCK AND CENTRAL LEE COUNTIES...
At 606 PM CDT, a severe thunderstorm was located near Wilson Lake, or
near Fort Madison, moving east at 30 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Fort Madison, Nauvoo, West Point, Donnellson, Montrose, Franklin, New
Boston, Croton, Niota, Pontoosuc, Charleston, Keokuk Airport, Nauvoo
State Park, Lee County Fairgrounds, Sawyer, Primrose, Bluff Park,
Galland, Sandusky, and Argyle.
This also includes Nauvoo State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
sturdy building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4049 9159 4051 9162 4054 9162 4055 9168
4058 9169 4060 9172 4062 9172 4071 9166
4070 9117 4058 9122 4043 9132
TIME...MOT...LOC 2306Z 276DEG 24KT 4060 9144
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Gunkel
Action: Cancelled Issued At: 2026-08-15 18:16:01
264
WWUS53 KDVN 152315
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
615 PM CDT Sat Aug 15 2026
IAC111-ILC067-152324-
/O.CAN.KDVN.SV.W.0274.000000T0000Z-260815T2345Z/
Hancock IL-Lee IA-
615 PM CDT Sat Aug 15 2026
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN HANCOCK AND
CENTRAL LEE COUNTIES IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.
&&
LAT...LON 4049 9159 4051 9162 4054 9162 4055 9168
4058 9169 4060 9172 4062 9172 4071 9166
4070 9117 4058 9122 4043 9132
TIME...MOT...LOC 2313Z 276DEG 24KT 4059 9136
$$
Gunkel
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