Alert archive / Iowa / Flash Flood Warnings in 2026
Flash Flood Warning 16, NWS Quad Cities, IA
NWS Quad Cities, IA issued this flash flood warning at Jun 7, 2026, 1:47 PM CDT for Scott County, Iowa; Rock Island County, Illinois. It was in force for 2 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 7, 2026, 1:47 PM CDT (18:47 UTC)
- Expired
- Jun 7, 2026, 3:58 PM CDT
- In force
- 2 hr
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Scott County, IA, Rock Island County, IL
The radar
The Quad Cities radar (KDVN), 21 km from the middle of the area, began a volume at 18:46 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 7, 3:21 PM CDT | RAIN 1.55 | 3 Ese Davenport, IA | Daily rainfall as of 3:22pm. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 6.8 hours before the alert went out and 226 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 714 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 765 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 88 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
463
WGUS53 KDVN 071847
FFWDVN
IAC163-ILC161-080045-
/O.NEW.KDVN.FF.W.0016.260607T1847Z-260608T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Quad Cities IA IL
147 PM CDT Sun Jun 7 2026
The National Weather Service in Quad Cities has issued a
* Flash Flood Warning for...
South Central Scott County in east central Iowa...
South Central Rock Island County in northwestern Illinois...
* Until 745 PM CDT.
* At 147 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 3 inches of rain
have fallen in the hardest hit areas. The expected rainfall rate
is 1 to 2 inches in 1 hour. Additional rainfall amounts of 1 to 2
inches are possible in the warned area. Flash flooding is ongoing
or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
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...
Davenport, Moline, Rock Island, Bettendorf, Milan, Buffalo,
Andalusia, Reynolds, Oak Grove, Taylor Ridge, Edgington, Credit
Island, West Lake Park, Buffalo Shores, Blackhawk State Park,
Mississippi Valley Fairgrounds, Coyne Center, Rock Island Arsenal
and Fruitland.
This includes Interstate 280 between mile markers 5 and 16.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 4159 9062 4159 9053 4146 9051 4133 9065
4133 9068 4133 9071 4133 9081 4134 9085
4147 9074
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR
$$
Uttech2 follow-up statements
999
WGUS73 KDVN 071943
FFSDVN
Flash Flood Statement
National Weather Service Quad Cities IA IL
243 PM CDT Sun Jun 7 2026
IAC163-ILC161-080045-
/O.CON.KDVN.FF.W.0016.000000T0000Z-260608T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Scott IA-Rock Island IL-
243 PM CDT Sun Jun 7 2026
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 745 PM CDT THIS
EVENING FOR SOUTH CENTRAL SCOTT AND SOUTH CENTRAL ROCK ISLAND
COUNTIES...
At 243 PM CDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 3 and 5 inches of rain have
fallen in the hardest hit areas of Rock Island County. The expected
rainfall rate is 1 to 2 inches in 1 hour. Additional rainfall
amounts of 0.5 to 1.5 inches are possible in the warned area. Flash
flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Davenport, Rock Island, Milan, Buffalo, Andalusia, Reynolds,
Taylor Ridge, Edgington, Buffalo Shores, West Lake Park and Credit
Island.
This includes Interstate 280 between mile markers 6 and 13.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Move to higher ground now. Act quickly to protect your life.
&&
LAT...LON 4153 9068 4149 9057 4144 9059 4133 9065
4133 9080 4133 9081 4134 9085 4147 9074
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR
$$
Uttech595
WGUS73 KDVN 072058
FFSDVN
Flash Flood Statement
National Weather Service Quad Cities IA IL
358 PM CDT Sun Jun 7 2026
IAC163-ILC161-072108-
/O.CAN.KDVN.FF.W.0016.000000T0000Z-260608T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Scott IA-Rock Island IL-
358 PM CDT Sun Jun 7 2026
...FLASH FLOOD WARNING IS CANCELLED FOR SOUTH CENTRAL SCOTT AND
SOUTH CENTRAL ROCK ISLAND COUNTIES...
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 700 PM CDT Monday for portions
of Illinois and Iowa.
&&
LAT...LON 4153 9068 4149 9057 4144 9059 4133 9065
4133 9080 4133 9081 4134 9085 4147 9074
$$
UttechWhat forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Quad Cities, IA wrote its last area forecast discussion before this flash flood warning went out at Jun 7, 12:25 PM CDT, 1 hour 22 minutes earlier. Its key messages:
- This morning's round of heavy rain producing storms has seen prolific heavy rain rates, mesoscale storm interactions, and nearly continuous redevelopment, resulting in a Flash Flood Threat Developing!
- Rounds of nocturnal and diurnal convection through Monday night will bring a risk of locally heavy rainfall due to weak winds aloft. If the heavy rain occurs in an urban area, localized flash flooding is possible.
- Heat and humidity will return around mid-week with temperatures in the 90s and heat indices pushing 100 or higher. The probability of heat headlines around mid-week is 33-40 percent.
Area forecast discussion, Jun 7, 12:25 PM CDT, 1 hour 22 minutes before
Area Forecast Discussion
National Weather Service Quad Cities IA IL
1225 PM CDT Sun Jun 7 2026
.KEY MESSAGES...
- This morning's round of heavy rain producing storms has seen
prolific heavy rain rates, mesoscale storm interactions, and
nearly continuous redevelopment, resulting in a Flash Flood
Threat Developing!
- Rounds of nocturnal and diurnal convection through Monday
night will bring a risk of locally heavy rainfall due to weak
winds aloft. If the heavy rain occurs in an urban area,
localized flash flooding is possible.
- Heat and humidity will return around mid-week with
temperatures in the 90s and heat indices pushing 100 or
higher. The probability of heat headlines around mid-week is
33-40 percent.
&&
.UPDATE...
Issued at 1150 AM CDT Sun Jun 7 2026
A lake boundary arrived overnight, allowing for enhanced
covergence over our CWA, which has interacted with the upper low
arriving, and exceptionall high PWAT values around 2 inches to
produce heavy rain and thunderstorms. The majority of these have
not been intense, but a few strong storms are out there,
especially in our eastern CWA. NST values of 2-3 are shown by
SPC Meso in Bureau Co, and a tornado was recently reported near
I-80 east of Princeton.
I've opted to issue a Flood Watch for this scenario where
repeated torrential rain is expecte on and off through Monday.
&&
.SHORT TERM /THROUGH MONDAY NIGHT/...
Issued at 207 AM CDT Sun Jun 7 2026
A lake/convection induced boundary has pushed into the area with it
running roughly from KMIW, to just north of the QCA metro area and
then to between KC75 and KPIA. With little in the way of forcing
across the area, only a brief rogue shower or storm is possible
through sunrise.
After sunrise, said boundary will become the focus for new
convection. Here the very short term models differ on timing but
generally agree that the boundary will be the initiation point. The
timing difference is traceable to the arrival of a weak upper level
disturbance from the Plains. Thus through mid-morning mainly dry
conditions will be seen with diurnal convection occurring anytime
from late morning on.
Away from the boundary, areal coverage of the convection looks to be
20-40 percent. Along the boundary a broken line of storms will
develop that slowly moves north through the afternoon. Outflow
boundaries from the convection will then be the foci for more
convection late this afternoon and evening.
After sunset areal coverage will slowly increase as the LLJ
develops. The highest coverage looks to be west of the Mississippi.
Toward sunrise Monday the highest coverage will slowly shift along
the Mississippi River.
Monday isolated to scattered convection will be seen west of the
Mississippi with the higher coverage along/east of the Mississippi.
A weak front arriving from the Plains will bring the convection to
an end from west to east late Monday afternoon and night.
Due to weak winds aloft, no severe storms are anticipated today or
Monday. However, the weak winds aloft means slow moving storms that
will be capable of producing locally heavy rainfall. If that heavy
rain occurs over an urban area, localized flash flooding is
possible.
&&
.LONG TERM /TUESDAY THROUGH SATURDAY/...
Issued at 207 AM CDT Sun Jun 7 2026
Tuesday through Sunday
Assessment...high (>80%) confidence of temperatures well above
normal. Low (20-25%) confidence for rain.
Trends with the models continue to show temperatures well above
normal for much of the week.
However, the highest heat indices now look to occur in the
Tuesday/Wednesday time frame. A seasonably strong front arriving
Wednesday night will bring cooler temperatures on Thursday with
temperatures moving to near normal for next weekend.
Heat indices Tuesday continue to indicate 95 to 100 but areas south
of I-80 have a 30-40% probability of exceeding 100. On Wednesday the
probability of seeing heat indices of 100+ is now at 50-60%.
Depending upon how rain chances play out, heat headlines may be
needed in the Tuesday/Wednesday time frame.
The model consensus indicates the daylight hours of Tuesday are dry.
Tuesday night into Wednesday is a question. A weak signal has
started to develop suggesting a nocturnal storm complex running
around the edge of the heat dome. If this occurs it would play
significantly into the need for potential heat headlines Wednesday.
Albeit a weak signal, some of the ensemble members of the various
models are pointing to rain and have a 20-30 percent chance for rain
Tuesday night into Wednesday.
Wednesday night into Thursday looks interesting.
A much stronger front is progged to move through the area that will
be associated with a strong upper level disturbance. Winds in the
mid-levels of the atmosphere are progged to be around 50 knots
indicating organized storms with the potential for severe storms.
CSU ML progs and other ML analog sites from the June 6th model runs
have a 15-30% probability of severe storms occurring. Thus the
transition from hot and humid conditions may have severe storms.
Thus Wednesday night has the best chances for rain. The current
model consensus has 50-70 percent chances for rain. Outside of
Wednesday night, the model consensus has daily 20-35 percent chances
for rain Thursday through Sunday.
&&
.AVIATION /18Z TAFS THROUGH 18Z MONDAY/...
Issued at 1223 PM CDT Sun Jun 7 2026
An upper low with copious moisture is combining with east winds
over northern Illinois to bring widespread shower and
thunderstorms to eastern Iowa and northwest Illinois. This
nearly continuous process will lead to scattered storms with low
visibility, heavy rain, and lower MVFR cigs / brief IFR cigs to
all sites this aftenroon and evening, and potentially into
Monday afternoon at times. Expect heavy downpours with all
storms, and possibly localized gusty winds, but otherwise, light
wind flow from the southeast to east southeast.
&&
.DVN WATCHES/WARNINGS/ADVISORIES...
IA...Flood Watch through Monday evening for IAZ040>042-051>054-
064>068.
IL...Flood Watch through Monday evening for ILZ001-007-009-015>018-
024.
MO...None.
&&
UPDATE...Ervin
SHORT TERM...08
LONG TERM...08
AVIATION...McClureHazardous weather outlook, Jun 7, 4:16 AM CDT, 9 hours 31 minutes before
Hazardous Weather Outlook National Weather Service Quad Cities IA IL 416 AM CDT Sun Jun 7 2026 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-080930- 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- 416 AM CDT Sun Jun 7 2026 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...TODAY AND TONIGHT Periodic slow moving showers, and scattered mainly afternoon and evening storms are expected. Any storms will be capable of producing locally heavy rainfall. If a storm would stall over an area, or if repeated storms would occur, then localized flash flooding would be possible. Gusty winds are also possible with the strongest storms. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY Scattered storms are expected on Monday, particularly in the afternoon and evening. Locally heavy rainfall and gusty winds are possible with the storms. Hotter weather arrives Tuesday and Wednesday with heat indices near or above 100 degrees possible. Severe thunderstorms are also possible Wednesday and Thursday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated today or tonight. However, rainfall reports over 1 inch will be appreciated.
In the hours before
Local storm report, Jun 7, 1:02 PM CDT, 45 minutes before
Preliminary Local Storm Report
National Weather Service Quad Cities IA IL
102 PM CDT Sun Jun 7 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1257 PM Rain 1 SW Cambridge 41.30N 90.20W
06/07/2026 M1.00 Inch Henry IL Trained Spotter
Total from 0830-1300 local time.
&&
ALELocal storm report, Jun 7, 1:23 PM CDT, 24 minutes before
Preliminary Local Storm Report
National Weather Service Quad Cities IA IL
123 PM CDT Sun Jun 7 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0120 PM Rain 2 SW Manlius 41.43N 89.69W
06/07/2026 M4.83 Inch Bureau IL Public
&&
ALELocal storm report, Jun 7, 1:25 PM CDT, 22 minutes before
Preliminary Local Storm Report
National Weather Service Quad Cities IA IL
125 PM CDT Sun Jun 7 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0111 PM Rain 1 SW Cambridge 41.30N 90.20W
06/07/2026 M1.50 Inch Henry IL Trained Spotter
0.5 inches of rainfall from 1300-1315 local
time.
&&
ALELocal storm report, Jun 7, 1:26 PM CDT, 21 minutes before
Preliminary Local Storm Report
National Weather Service Quad Cities IA IL
126 PM CDT Sun Jun 7 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0126 PM Rain 5 S Thomas 41.45N 89.82W
06/07/2026 M3.50 Inch Bureau IL Public
Report received via Facebook.
&&
ALELocal storm report, Jun 7, 1:36 PM CDT, 11 minutes before
Preliminary Local Storm Report
National Weather Service Quad Cities IA IL
136 PM CDT Sun Jun 7 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0125 PM Flash Flood 3 NE Sheffield 41.39N 89.69W
06/07/2026 Bureau IL Public
Report via Facebook: Interstate 80 is
flooded near Route 40 exit. Rerouting
traffic. On Route 40 just south of
interstate 80 the road is closed due to
flooding.
&&
ALELocal storm report, Jun 7, 1:37 PM CDT, 10 minutes before
Preliminary Local Storm Report
National Weather Service Quad Cities IA IL
137 PM CDT Sun Jun 7 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0122 PM Rain 2 ENE Edgington 41.39N 90.73W
06/07/2026 M5.00 Inch Rock Island IL Public
Report via Facebook. Rain ongoing.
&&
ALEThe office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 7, 9:55 AM CDT | Special Weather Statement | DVN | Scott | 35 min |
| Jun 7, 10:59 AM CDT | Special Weather Statement | DVN | Dubuque, Jackson, Jones | 46 min |
| Jun 7, 11:46 AM CDT | Flood Watch | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 31 hr |
| Jun 7, 12:34 PM CDT | Flash Flood Warning | DVN | Cedar, Clinton, Muscatine | 3 hr |
| Jun 7, 9:31 AM CDT | Special Weather Statement | DVN | Whiteside | 29 min |
| Jun 7, 10:57 AM CDT | Special Weather Statement | DVN | Bureau | 48 min |
| Jun 7, 11:13 AM CDT | Flash Flood Warning | DVN | Bureau | 5 hr |
| Jun 7, 11:54 AM CDT | Tornado Warning | DVN | Bureau | 21 min |
| Jun 7, 1:09 PM CDT | Flash Flood Warning | DVN | Henry | 6 hr |
Nearby
Flash Flood Warnings in Iowa, 2026Flash Flood Warnings in Illinois, 2026Every flash flood warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.