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Home Return to list Severe Thunderstorm Warning 0289 Issued by the Davenport / Quad Cities Forecast Office
Action: New Issued At: 2026-09-20 01:18:11
025
WUUS53 KDVN 200618
SVRDVN
ILC131-161-IAC031-087-101-103-107-115-139-177-183-200715-
/O.NEW.KDVN.SV.W.0289.260920T0618Z-260920T0715Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Quad Cities IA/IL
118 AM CDT Sun Sep 20 2026
The National Weather Service in the Quad Cities has issued a
* Severe Thunderstorm Warning for...
Western Rock Island County in northwestern Illinois...
Northwestern Mercer County in northwestern Illinois...
Northern Henry County in southeastern Iowa...
North central Van Buren County in southeastern Iowa...
Louisa County in southeastern Iowa...
Southeastern Keokuk County in southeastern Iowa...
Southwestern Cedar County in east central Iowa...
Southern Johnson County in east central Iowa...
Washington County in southeastern Iowa...
Muscatine County in east central Iowa...
Jefferson County in southeastern Iowa...
* Until 215 AM CDT.
* At 118 AM CDT, severe thunderstorms were located along a line
extending from Harper to near Coppock to near Hillsboro, moving
northeast at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Iowa City, Muscatine, Fairfield, Washington, West Branch, Wapello,
Sigourney, Columbus Junction, West Liberty, Kalona, Wellman, Lone
Tree, Winfield, Riverside, Fruitland, Wayland, Hills, Brighton,
Richland, and Ainsworth.
This includes Interstate 80 in Iowa between mile markers 248 and 265.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
sturdy building.
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 4133 9222 4177 9129 4152 9098 4124 9100
4082 9197 4107 9211 4113 9218 4116 9218
4116 9222
TIME...MOT...LOC 0618Z 244DEG 45KT 4139 9203 4122 9175 4088 9171
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
McClure
Action: Continued Issued At: 2026-09-20 01:30:41
516
WWUS53 KDVN 200630
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
130 AM CDT Sun Sep 20 2026
ILC131-161-IAC031-087-101-103-107-115-139-177-183-200715-
/O.CON.KDVN.SV.W.0289.000000T0000Z-260920T0715Z/
Rock Island IL-Mercer IL-Henry IA-Van Buren IA-Louisa IA-Keokuk IA-
Cedar IA-Johnson IA-Washington IA-Muscatine IA-Jefferson IA-
130 AM CDT Sun Sep 20 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 AM CDT
FOR WESTERN ROCK ISLAND...NORTHWESTERN MERCER...NORTHERN HENRY...
NORTH CENTRAL VAN BUREN...LOUISA...SOUTHEASTERN KEOKUK...SOUTHWESTERN
CEDAR...SOUTHERN JOHNSON...WASHINGTON...MUSCATINE AND EASTERN
JEFFERSON COUNTIES...
At 130 AM CDT, severe thunderstorms were located along a line
extending from near Wellman to near Marr Park to Henry County
Fairgrounds, moving northeast at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Iowa City, Muscatine, Fairfield, Washington, West Branch, Wapello,
Sigourney, Columbus Junction, West Liberty, Kalona, Wellman, Lone
Tree, Winfield, Riverside, Fruitland, Wayland, Hills, Brighton,
Richland, and Ainsworth.
This includes Interstate 80 in Iowa between mile markers 248 and 265.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
sturdy building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
the Quad Cities.
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 4133 9222 4177 9129 4152 9098 4124 9100
4085 9190 4110 9198 4118 9205 4122 9208
4126 9213
TIME...MOT...LOC 0630Z 244DEG 45KT 4144 9189 4127 9161 4093 9157
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
McClure
Action: Cancelled Issued At: 2026-09-20 01:41:41
831
WWUS53 KDVN 200641
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
141 AM CDT Sun Sep 20 2026
IAC177-200651-
/O.CAN.KDVN.SV.W.0289.000000T0000Z-260920T0715Z/
Van Buren IA-
141 AM CDT Sun Sep 20 2026
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL VAN BUREN COUNTY
IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
&&
LAT...LON 4139 9201 4177 9129 4152 9098 4124 9100
4093 9173 4103 9181 4109 9186 4117 9191
4130 9197
TIME...MOT...LOC 0641Z 244DEG 45KT 4150 9174 4133 9146 4099 9142
$$
ILC131-161-IAC031-087-101-103-107-115-139-183-200715-
/O.CON.KDVN.SV.W.0289.000000T0000Z-260920T0715Z/
Rock Island IL-Mercer IL-Henry IA-Louisa IA-Keokuk IA-Cedar IA-
Johnson IA-Washington IA-Muscatine IA-Jefferson IA-
141 AM CDT Sun Sep 20 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 AM CDT
FOR WESTERN ROCK ISLAND...NORTHWESTERN MERCER...NORTHERN HENRY...
LOUISA...EAST CENTRAL KEOKUK...SOUTHWESTERN CEDAR...SOUTHERN
JOHNSON...WASHINGTON...MUSCATINE AND NORTHEASTERN JEFFERSON
COUNTIES...
At 141 AM CDT, severe thunderstorms were located along a line
extending from near Kalona to near Cotter to near New London, moving
northeast at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Iowa City, Muscatine, Washington, West Branch, Wapello, Columbus
Junction, West Liberty, Kalona, Wellman, Lone Tree, Winfield,
Riverside, Fruitland, Wayland, Hills, Brighton, Ainsworth, Grandview,
Conesville, and Columbus City.
This includes Interstate 80 in Iowa between mile markers 249 and 265.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
sturdy building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
the Quad Cities.
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 4139 9201 4177 9129 4152 9098 4124 9100
4093 9173 4103 9181 4109 9186 4117 9191
4130 9197
TIME...MOT...LOC 0641Z 244DEG 45KT 4150 9174 4133 9146 4099 9142
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
McClure
Action: Continued Issued At: 2026-09-20 01:41:41
831
WWUS53 KDVN 200641
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
141 AM CDT Sun Sep 20 2026
IAC177-200651-
/O.CAN.KDVN.SV.W.0289.000000T0000Z-260920T0715Z/
Van Buren IA-
141 AM CDT Sun Sep 20 2026
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL VAN BUREN COUNTY
IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
&&
LAT...LON 4139 9201 4177 9129 4152 9098 4124 9100
4093 9173 4103 9181 4109 9186 4117 9191
4130 9197
TIME...MOT...LOC 0641Z 244DEG 45KT 4150 9174 4133 9146 4099 9142
$$
ILC131-161-IAC031-087-101-103-107-115-139-183-200715-
/O.CON.KDVN.SV.W.0289.000000T0000Z-260920T0715Z/
Rock Island IL-Mercer IL-Henry IA-Louisa IA-Keokuk IA-Cedar IA-
Johnson IA-Washington IA-Muscatine IA-Jefferson IA-
141 AM CDT Sun Sep 20 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 AM CDT
FOR WESTERN ROCK ISLAND...NORTHWESTERN MERCER...NORTHERN HENRY...
LOUISA...EAST CENTRAL KEOKUK...SOUTHWESTERN CEDAR...SOUTHERN
JOHNSON...WASHINGTON...MUSCATINE AND NORTHEASTERN JEFFERSON
COUNTIES...
At 141 AM CDT, severe thunderstorms were located along a line
extending from near Kalona to near Cotter to near New London, moving
northeast at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Iowa City, Muscatine, Washington, West Branch, Wapello, Columbus
Junction, West Liberty, Kalona, Wellman, Lone Tree, Winfield,
Riverside, Fruitland, Wayland, Hills, Brighton, Ainsworth, Grandview,
Conesville, and Columbus City.
This includes Interstate 80 in Iowa between mile markers 249 and 265.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
sturdy building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
the Quad Cities.
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 4139 9201 4177 9129 4152 9098 4124 9100
4093 9173 4103 9181 4109 9186 4117 9191
4130 9197
TIME...MOT...LOC 0641Z 244DEG 45KT 4150 9174 4133 9146 4099 9142
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
McClure
Action: Cancelled Issued At: 2026-09-20 01:58:42
467
WWUS53 KDVN 200658
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
158 AM CDT Sun Sep 20 2026
IAC101-107-200708-
/O.CAN.KDVN.SV.W.0289.000000T0000Z-260920T0715Z/
Keokuk IA-Jefferson IA-
158 AM CDT Sun Sep 20 2026
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL KEOKUK AND
NORTHEASTERN JEFFERSON COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
&&
LAT...LON 4145 9180 4177 9129 4152 9098 4124 9100
4103 9148 4110 9153 4114 9158 4121 9163
4130 9168
TIME...MOT...LOC 0658Z 270DEG 45KT 4157 9149 4140 9121 4106 9117
$$
ILC131-161-IAC031-087-103-115-139-183-200715-
/O.CON.KDVN.SV.W.0289.000000T0000Z-260920T0715Z/
Rock Island IL-Mercer IL-Henry IA-Louisa IA-Cedar IA-Johnson IA-
Washington IA-Muscatine IA-
158 AM CDT Sun Sep 20 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 AM CDT
FOR WESTERN ROCK ISLAND...NORTHWESTERN MERCER...NORTHEASTERN HENRY...
LOUISA...SOUTHWESTERN CEDAR...SOUTHEASTERN JOHNSON...EASTERN
WASHINGTON AND MUSCATINE COUNTIES...
At 158 AM CDT, severe thunderstorms were located along a line
extending from near Hills Access to Ardon to near Garland, moving
east at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Iowa City, Muscatine, Washington, West Branch, Wapello, Columbus
Junction, West Liberty, Kalona, Lone Tree, Winfield, Riverside,
Fruitland, Hills, Ainsworth, Grandview, Conesville, Columbus City,
Letts, Nichols, and Atalissa.
This includes Interstate 80 in Iowa between mile markers 250 and 265.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
sturdy building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
the Quad Cities.
Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of natures leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4145 9180 4177 9129 4152 9098 4124 9100
4103 9148 4110 9153 4114 9158 4121 9163
4130 9168
TIME...MOT...LOC 0658Z 270DEG 45KT 4157 9149 4140 9121 4106 9117
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
McClure
Action: Continued Issued At: 2026-09-20 01:58:42
467
WWUS53 KDVN 200658
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
158 AM CDT Sun Sep 20 2026
IAC101-107-200708-
/O.CAN.KDVN.SV.W.0289.000000T0000Z-260920T0715Z/
Keokuk IA-Jefferson IA-
158 AM CDT Sun Sep 20 2026
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL KEOKUK AND
NORTHEASTERN JEFFERSON COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
&&
LAT...LON 4145 9180 4177 9129 4152 9098 4124 9100
4103 9148 4110 9153 4114 9158 4121 9163
4130 9168
TIME...MOT...LOC 0658Z 270DEG 45KT 4157 9149 4140 9121 4106 9117
$$
ILC131-161-IAC031-087-103-115-139-183-200715-
/O.CON.KDVN.SV.W.0289.000000T0000Z-260920T0715Z/
Rock Island IL-Mercer IL-Henry IA-Louisa IA-Cedar IA-Johnson IA-
Washington IA-Muscatine IA-
158 AM CDT Sun Sep 20 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 AM CDT
FOR WESTERN ROCK ISLAND...NORTHWESTERN MERCER...NORTHEASTERN HENRY...
LOUISA...SOUTHWESTERN CEDAR...SOUTHEASTERN JOHNSON...EASTERN
WASHINGTON AND MUSCATINE COUNTIES...
At 158 AM CDT, severe thunderstorms were located along a line
extending from near Hills Access to Ardon to near Garland, moving
east at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Iowa City, Muscatine, Washington, West Branch, Wapello, Columbus
Junction, West Liberty, Kalona, Lone Tree, Winfield, Riverside,
Fruitland, Hills, Ainsworth, Grandview, Conesville, Columbus City,
Letts, Nichols, and Atalissa.
This includes Interstate 80 in Iowa between mile markers 250 and 265.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
sturdy building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
the Quad Cities.
Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of natures leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4145 9180 4177 9129 4152 9098 4124 9100
4103 9148 4110 9153 4114 9158 4121 9163
4130 9168
TIME...MOT...LOC 0658Z 270DEG 45KT 4157 9149 4140 9121 4106 9117
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
McClure
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