Flash Flood Warning 13, NWS Quad Cities, IA

748 
WGUS73 KDVN 112129
FFSDVN

Flash Flood Statement
National Weather Service Quad Cities IA IL
429 PM CDT Fri Jul 11 2025

IAC011-019-055-113-120030-
/O.CON.KDVN.FF.W.0013.000000T0000Z-250712T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Benton IA-Buchanan IA-Delaware IA-Linn IA-
429 PM CDT Fri Jul 11 2025

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 PM CDT THIS 
EVENING FOR BENTON, NORTHWESTERN LINN, BUCHANAN AND WESTERN DELAWARE 
COUNTIES...

At 429 PM CDT, Emergency Management and the public reported flash 
flooding in Independence and Vinton due to thunderstorms in the 
warned area. Between 1 and 2.5 inches of rain have fallen. 
Additional rainfall amounts of 0.5 to 1.5 inches are possible in the 
warned area.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Emergency management reported.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Independence, Vinton, Manchester, Hiawatha, Robins, Belle Plaine, 
  Center Point, Fairfax, Atkins, Walford, Urbana, Palo, Shellsburg, 
  Newhall, Edgewood, Winthrop, Walker, Blairstown and Van Horne.

This includes Interstate 380 between mile markers 26 and 50.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

&&

LAT...LON 4254 9191 4264 9161 4265 9125 4186 9183
      4186 9230 4199 9230 4216 9205

FLASH FLOOD...OBSERVED

$$

Friedlein

838 
WGUS53 KDVN 120009
FFWDVN
IAC011-019-055-113-120900-
/O.EXT.KDVN.FF.W.0013.000000T0000Z-250712T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Quad Cities IA IL
709 PM CDT Fri Jul 11 2025

The National Weather Service in Quad Cities has extended the

* Flash Flood Warning for...
  Benton County in east central Iowa...
  Northwestern Linn County in east central Iowa...
  Buchanan County in northeastern Iowa...
  Western Delaware County in northeastern Iowa...

* Until 400 AM CDT Saturday.

* At 709 PM CDT, emergency management reported flash flooding due to 
  heavy rainfall continues to be seen across the warned area. 
  Between 2 and 4 inches of rain have fallen. Additional rainfall 
  amounts of 0.5 to 1.0 inches are possible in the warned area. 
  Flash flooding is ongoing.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Emergency management reported.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Cedar Rapids, Independence, Vinton, Manchester, Hiawatha, Robins, 
  Belle Plaine, Center Point, Fairfax, Atkins, Walford, Urbana, 
  Palo, Shellsburg, Newhall, Edgewood, Winthrop, Walker, Blairstown 
  and Van Horne.

This includes Interstate 380 between mile markers 26 and 50.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

&&

LAT...LON 4254 9191 4264 9161 4265 9125 4186 9183
      4186 9230 4199 9230 4216 9205

FLASH FLOOD...OBSERVED

$$

Gunkel

205 
WGUS73 KDVN 120349
FFSDVN

Flash Flood Statement
National Weather Service Quad Cities IA IL
1049 PM CDT Fri Jul 11 2025

IAC011-019-055-113-120900-
/O.CON.KDVN.FF.W.0013.000000T0000Z-250712T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Benton IA-Buchanan IA-Delaware IA-Linn IA-
1049 PM CDT Fri Jul 11 2025

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 4 AM CDT SATURDAY FOR 
BENTON, NORTHWESTERN LINN, BUCHANAN AND WESTERN DELAWARE COUNTIES...

At 1049 PM CDT, emergency management reported that flood waters were 
beginning to recede across the warned area. With the threat for 
heavy rain ending a continued recession in flood waters is expected 
through late evening. However, be aware that some areas of ongoing 
high water and flash flooding may still be occurring across the 
warned area. If the improvement continues as expected the flash 
flood warning will likely be cancelled early.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Emergency management reported.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Cedar Rapids, Independence, Vinton, Manchester, Hiawatha, Robins, 
  Belle Plaine, Center Point, Fairfax, Atkins, Walford, Urbana, 
  Palo, Shellsburg, Newhall, Edgewood, Winthrop, Walker, Blairstown 
  and Van Horne.

This includes Interstate 380 between mile markers 26 and 50.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

&&

LAT...LON 4254 9191 4264 9161 4265 9125 4186 9183
      4186 9230 4199 9230 4216 9205

FLASH FLOOD...OBSERVED

$$

McClure

478 
WGUS73 KDVN 120455
FFSDVN

Flash Flood Statement
National Weather Service Quad Cities IA IL
1155 PM CDT Fri Jul 11 2025

IAC011-019-055-113-120505-
/O.CAN.KDVN.FF.W.0013.000000T0000Z-250712T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Benton IA-Buchanan IA-Delaware IA-Linn IA-
1155 PM CDT Fri Jul 11 2025

...FLASH FLOOD WARNING IS CANCELLED FOR BENTON, NORTHWESTERN LINN, 
BUCHANAN AND WESTERN DELAWARE COUNTIES...

Flood waters have receded. The heavy rain has ended. Flooding is no 
longer expected to pose a threat. Please continue to heed remaining 
road closures.

A Flood Watch remains in effect until 100 AM CDT for portions of 
Illinois and Iowa.

&&

LAT...LON 4254 9191 4264 9161 4265 9125 4186 9183
      4186 9230 4199 9230 4216 9205

$$

McClure

Area Forecast Discussion
National Weather Service Quad Cities IA IL
128 PM CDT Fri Jul 11 2025

.KEY MESSAGES...

- An Enhanced Risk (Level 3 of 5) of severe weather is expected
  this afternoon into tonight. Damaging winds are the primary
  hazard. A few tornadoes and large hail can not be ruled out.

- Flash flooding is likely for portions of the area, especially
  for those that have received 2 to 4 inches of rainfall within
  the last 24 hours. Rainfall rates of 2 to 4 inches per hour
  are expected. Additional rainfall amounts between 1 to 3
  inches are possible.

- Quieter weather arrives this weekend with only isolated
  thunderstorms. Temperatures begin to increase next week ahead
  of our next weather system by the middle of the week.
  Increasing thunderstorm chances are expected with this next
  system.

&&

.SHORT TERM /THROUGH TONIGHT/...
Issued at 126 PM CDT Fri Jul 11 2025

Several locations across the area received 2 to 4 inches of rainfall
over the last 24 hours. This will contribute greatly to the expected
hazards through tonight. In the meantime, a decaying area of showers
and thunderstorms continues to lift northeastward out of our region.
A positively-tilted shortwave trough is situated over the central
Great Plains and is expected to progress eastward through this
afternoon and evening. Late this morning and early this afternoon,
pockets of sunshine allow for rapid daytime heating and
destabilization. Temperatures reach the middle to upper 80s along
and south of Interstate 80, with upper 70s and lower 80s to the
north where clouds linger. This sets the stage for a very active
afternoon and evening.

With the approaching trough and afternoon destabilization,
thunderstorm development is expected near convective outflow from
morning thunderstorms across our north and ahead of the approaching
trough to our west. These thunderstorms are forecast to develop in a
favorable environment for severe weather and flash flooding. As
such, the Storm Prediction Center has upgraded to an Enhanced Risk
(Level 3 of 5) over the area. Convectively-enhanced low-level winds
support curved hodographs that favor supercell development
initially. These supercells will pose an all hazards threat, with
damaging winds, marginally large hail, and even a few tornadoes
possible. Flash flooding will be another hazard. Low-level winds
favor continuous moisture transport from the southwest into our
area, alongside an already deep-saturated airmass. Given weak and
backed upper-level winds, high-precipation rates are expected. 2 to
4 inch per hour rainfall rates are probable. As the afternoon and
evening progresses, additional thunderstorm development and gradual
upscale growth into lines of thunderstorms is anticipated. This
upscale growth will transition the hazards to a primary threat of
damaging winds and flash flooding as cold pools congeal. With that
said, a couple tornadoes can not be ruled out. Slow movement and
training of thunderstorms appears likely. Weaker upper-level winds
and shear vectors generally in the same direction as thunderstorm
orientation supports prolonged heavy rainfall. With this
expectation, widespread additional rainfall of 1 to 3 inches is
forecast with locally higher amounts possible. A Flood Watch is in
effect for much of the area as a result due to this threat of flash
flooding and river flooding.

Late tonight and into early Saturday morning, thunderstorms
gradually shift eastward, along with the trough and precipitation
tapers off by midnight with any lingering showers and thunderstorms
dissipating after midnight. Patchy fog may develop behind this
rainfall with plentiful moisture and cooler temperatures filling in
behind this activity. Temperatures cool into the upper 60s by
Saturday morning as remnant clouds continue to linger.

&&

.LONG TERM /SATURDAY THROUGH THURSDAY/...
Issued at 126 PM CDT Fri Jul 11 2025

With widespread cloud cover and rain-cooled air lingering Saturday
morning, comparatively quieter weather is anticipated for Saturday.
With that said, at least a few afternoon thunderstorms can be
expected during the mid-afternoon before everything clears to the
east by evening. Temperatures reach the middle 80s across the area
on Saturday. Cooler temperatures continue on Sunday, with morning
temperatures down into the lower 60s and afternoon temperatues
reaching the middle 80s once again. Mostly sunny skies offer up
beautiful weather to end the weekend. Temperatures climb back into
the upper 80s and lower 90s to start the week under mostly sunny
skies and ahead of our next system. Heading towards the middle of
the week, our next weather system brings increasing thunderstorm
chances and cooling temperatures. A cold front could bring upper 70s
and lower 80s to the area late in the week.

&&

.AVIATION /18Z TAFS THROUGH 18Z SATURDAY/...
Issued at 1212 PM CDT Fri Jul 11 2025

VFR conditions and southeast winds are expected during the early
afternoon. A few showers and thunderstorms have developed near and
north of CID and DBQ. Brief aviation impacts and VCTS are possible
through early afternoon. As the afternoon progresses, thunderstorm
development is expected near western terminals initially. Scattered
thunderstorms may proceed a stronger line of thunderstorms that
moves east across the region this afternoon and evening. Gusty and
variable winds are expected with these thunderstorms. MVFR
visibility and ceilings are likely with thunderstorms with
reductions to IFR ceilings and visibility possible at times. Behind
these thunderstorms late this evening, rain may linger along
with MVFR ceilings. Fog is expected to develop across the area
once rain ends with MVFR visibility with MVFR or IFR ceilings
after midnight. Eventual clearing will arrive towards the end
of the TAF period.

&&

.HYDROLOGY...
Issued at 107 PM CDT Fri Jul 11 2025

What is NEW...

Flood watches have been issued for the Wapsipinicon River near
DeWitt and for the Mississippi River from Gladstone, IL (L/D 18) to
Burlington, IA.

Discussion...

Bands of heavy rain fell across eastern Iowa and northwest and
west central Illinois. Rainfall ranged from 1 to 4 inches with
3-4+ inches in the bands of heavier rainfall. The urban areas of
Dubuque and the Quad Cities were hit hard with heavy rainfall
last night and are especially at risk for flooding.

Most of the area is abnormally dry or in moderate drought and
transpiration from agricultural fields is near maximum.

As of right now river gages are showing little to no increases
suggesting a good chunk of last nights rainfall appears to have
soaked into the ground. However, another round of heavy rainfall
is expected late this afternoon through sunrise Saturday. Early
estimates suggest another 1 to 3 inches of rain occurring with
pockets of 3+ inches possible due to PWATs above the 90th
percentile.

If the heavier bands of rain occur in roughly the same areas as
last night, then considerable runoff will occur due to soils
being near saturation. If the heavier rain occurs in areas that
received less rainfall last night, then a good portion of the
rain may soak into the ground.

Regardless of which scenario occurs, baseline ground water flow
will increase and eventually reach area waterways. As a result,
area rivers are forecast to see general within bank rises over
next next 5-7 days. If the upcoming round of heavy rain occurs
in areas that have saturated soils, then portions of some rivers
may reach flood stage.

&&

.DVN WATCHES/WARNINGS/ADVISORIES...
IA...Flood Watch until 1 AM CDT Saturday for IAZ040>042-051>054-
     063>068-076>078-087>089-098-099.
IL...Flood Watch until 1 AM CDT Saturday for ILZ001-002-007-009-
     015>018-024>026.
MO...None.

&&

SHORT TERM...NWS
LONG TERM...NWS
AVIATION...NWS
HYDROLOGY...08

Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
124 PM CDT Fri Jul 11 2025

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-121830-
Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson-
Cedar-Clinton-Muscatine-Scott-Keokuk-Washington-Louisa-Jefferson-
Henry IA-Des Moines-Van Buren-Lee-Jo Daviess-Stephenson-Carroll-
Whiteside-Rock Island-Henry IL-Bureau-Putnam-Mercer-Henderson-
Warren-Hancock-McDonough-Scotland-Clark-
124 PM CDT Fri Jul 11 2025

This Hazardous Weather Outlook is for portions of north central
Illinois...northwest Illinois...west central Illinois...east
central Iowa...northeast Iowa...southeast Iowa and northeast
Missouri.

.DAY ONE...THIS AFTERNOON AND TONIGHT

Multiple rounds of thunderstorms are expected this afternoon
through the early morning on Saturday. An Enhanced Risk (Level 3
of 5) of severe thunderstorms is in place. Damaging winds and a
few tornadoes will be the main threats, with isolated large hail
being a secondary threat.

Flash flooding will continue to be possible across the area,
especially for areas that received heavy rainfall on Thursday, or
where multiple rounds of thunderstorms impact today.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

Isolated thunderstorms remain possible on Saturday, particularly
for areas along and east of the Mississippi River.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is likely needed this afternoon through
tonight.

Preliminary Local Storm Report
National Weather Service Quad Cities IA IL
1024 AM CDT Fri Jul 11 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1024 AM     Rain             2 W Genoa Bluff         41.72N 92.18W
07/11/2025  M1.50 Inch       Iowa               IA   Trained Spotter

            24 hr total ending at 7 AM.

&&

Special Weather Statement
National Weather Service Quad Cities IA/IL
1053 AM CDT Fri Jul 11 2025

IAZ040-041-051-052-111700-
Linn IA-Buchanan IA-Delaware IA-Benton IA-
1053 AM CDT Fri Jul 11 2025

...A slow-moving thunderstorm will impact portions of northwestern
Linn, Buchanan, northwestern Delaware and northern Benton Counties
through NOON CDT...

At 1052 AM CDT, Doppler radar was tracking a slow-moving thunderstorm
near Brandon, or 8 miles northeast of Vinton, moving northeast at 60
mph.

HAZARD...Minor flooding.

SOURCE...Radar indicated.

IMPACT...Slowing or redirecting of traffic due to ponding or flowing
         water. Closure of waterfront access due to flooding.

Locations impacted include...
Independence, Vinton, Manchester, Center Point, Urbana, Shellsburg,
Newhall, Edgewood, Winthrop, Walker, Quasqueton, Lamont, Garrison,
Brandon, Rowley, Greeley, Aurora, Dundee, Mount Auburn, and
Masonville.

This includes Interstate 380 between mile markers 35 and 55.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is occurring and may lead to localized flooding.
Do not drive your vehicle through flooded roadways. Stay away from
flooded areas. Report any flooding to local law enforcement.

If the heavy rain continues, a flash flood warning may be needed.

&&

LAT...LON 4197 9195 4216 9226 4230 9212 4230 9206
      4235 9207 4264 9176 4265 9123
TIME...MOT...LOC 1552Z 221DEG 53KT 4227 9195

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...<30 MPH

Gunkel

Preliminary Local Storm Report
National Weather Service Quad Cities IA IL
1138 AM CDT Fri Jul 11 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1138 AM     Rain             1 SSW Geneseo           41.44N 90.16W
07/11/2025  M1.00 Inch       Henry              IL   Trained Spotter

&&

DC

Special Weather Statement
National Weather Service Quad Cities IA/IL
254 PM CDT Fri Jul 11 2025

IAZ040>042-051-052-112130-
Linn IA-Buchanan IA-Delaware IA-Benton IA-Dubuque IA-
254 PM CDT Fri Jul 11 2025

...Repeated thunderstorms will impact portions of Linn, Buchanan,
Delaware, Benton and Dubuque Counties through the afternoon...

At 253 PM CDT, Doppler radar was tracking slow-moving heavy rain
producing thunderstorms along a line extending from near Maynard to
near Rock Creek Lake. Movement was northeast at 30 mph.

HAZARD...Minor flooding and wind gusts in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could cause minor tree limb damage and blow
         around unsecured objects. Slowing or redirecting of traffic
         due to ponding or flowing water. Closure of waterfront
         access due to flooding.

Locations impacted include...
Cedar Rapids, Dubuque, Independence, Vinton, Manchester, Marion,
Hiawatha, Asbury, Dyersville, Robins, Belle Plaine, Jesup, Center
Point, Cascade, Fairfax, Epworth, East Dubuque, Atkins, Farley, and
Walford.

This includes Interstate 380 between mile markers 16 and 55.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is occurring and may lead to localized flooding.
Do not drive your vehicle through flooded roadways.

If the heavy rain continues, a flash flood warning may be needed.

&&

LAT...LON 4264 9071 4254 9064 4247 9065 4238 9048
      4238 9066 4230 9067 4230 9136 4207 9137
      4186 9179 4186 9230 4230 9230 4230 9206
      4264 9208 4265 9090 4268 9089
TIME...MOT...LOC 1953Z 238DEG 44KT 4271 9183 4178 9288

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

Friedlein

Preliminary Local Storm Report
National Weather Service Quad Cities IA IL
322 PM CDT Fri Jul 11 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0321 PM     Rain             1 SSE Edmore            42.54N 90.68W
07/11/2025  M1.63 Inch       Dubuque            IA   Trained Spotter

            1.63 inches in 37 minutes.

&&

DC