Alert archive / Iowa / River Flood Warnings in 2022

River Flood Warning 8, NWS Quad Cities, IA

June 25, 2022Clinton County, Scott County, Iowa

NWS Quad Cities, IA issued this river flood warning at Jun 25, 2022, 9:56 AM CDT for Clinton County, Scott County, Iowa. It took effect at Jun 25, 2022, 11:25 PM CDT. It was in force for 7 days.

The area

The counties it named.

The facts

Issued
Jun 25, 2022, 9:56 AM CDT (14:56 UTC)
In effect from
Jun 25, 2022, 11:25 PM CDT
Expired
Jul 3, 2022, 7:14 AM CDT
In force
7 days
Issued by
NWS Quad Cities, IA
Area
Storm-based polygon
Flood severity
Moderate

Counties Clinton County, IA, Scott County, IA

The radar

The Quad Cities radar (KDVN), 17 km from the middle of the area, began a volume at 14:57 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.

The river

Written for the forecast point Wapsipinicon River near DeWitt (DEWI4).

Action stage
10 ft
Minor stage
11 ft
Moderate stage
11.5 ft
Major stage
12.5 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05422000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river 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 river flood warning went out at Jun 25, 6:19 AM CDT, 3 hours 37 minutes earlier.

Area forecast discussion, Jun 25, 6:19 AM CDT, 3 hours 37 minutes before
Area Forecast Discussion
National Weather Service Quad Cities IA IL
619 AM CDT Sat Jun 25 2022

...AVIATION UPDATE...

.SYNOPSIS...
Issued at 314 AM CDT Sat Jun 25 2022

Thunderstorms with heavy rain continued to expand across portions
of eastern Iowa during the early morning hours. Through 3 am, the
heaviest rainfall amounts around 3 inches had occurred from Belle
Plaine, through Marengo, to North Liberty. Early morning
temperatures ranged from the mid 60s around Freeport, to the mid
70s in southeast Iowa.

&&

.SHORT TERM...(Today and Tonight)
ISSUED AT 314 AM CDT Sat Jun 25 2022

Key messages:

1) Morning storms with heavy rain, then afternoon/evening
redevelopment.
2) Hot and humid today, especially south of Interstate 80.
3) Some potential for a few severe storms this afternoon and
evening, along and east of the Mississippi River

Today: Widespread thunderstorms will continue to push east this
morning, with the highest coverage along and north of Interstate
80. Thus far, the main threat is heavy rain and isolated flash
flooding. Max rainfall amounts of 3+ inches have fallen so far in
parts of Benton, Iowa, and Johnson Counties. Will continue to
watch closely for localized flash flood threat, particularly in
urban areas.

This afternoon, heat index values could approach 100 degrees along
and south of Interstate 80, depending on cloud cover. Cannot rule
out reaching advisory criteria in some places, but will defer to
day shift to re-evaluate.

By late afternoon, scattered storms are expected to fire along a
cold front near the Mississippi River. Latest CAMS favor storm
coverage near and east of the river, coincident with the SPC
marginal risk area. Right now, we're looking at a relatively low
risk of large hail and damaging winds.

.LONG TERM...(Sunday through Friday)
ISSUED AT 314 AM CDT Sat Jun 25 2022

Largely unchanged forecast for the period as a beautiful day Sunday
and Monday are still on track across the area.  After this the flow
turns to a more hot and humid pattern. Wednesday and Thursday
continue to show highs in the 90s ahead of a cold front.  This seems
to be a pattern as of late.  Cold front with milder temps, increase
in heat and humidity, then a front with pop chances. Guidance agrees
on the frontal passage sometime Friday.  This looks to be the next
best chance for pops in the extended.

&&

.AVIATION...(For the 12Z TAFS through 12Z Sunday Morning)
ISSUED AT 619 AM CDT Sat Jun 25 2022

12Z TAF issuance focused on timing out thunderstorms from west to
east this morning. Otherwise, expect MVFR to low VFR ceilings and
an increasing southerly breeze. Storm redevelopment is most likely
at KMLI/KBRL late this afternoon and have timed a 2 hour VCTS
group at both sites beginning at 22z.

&&

.DVN WATCHES/WARNINGS/ADVISORIES...
IA...NONE.
IL...NONE.
MO...NONE.
&&

SYNOPSIS...RP Kinney
SHORT TERM...RP Kinney
LONG TERM...Gibbs
AVIATION...RP Kinney
Hazardous weather outlook, Jun 25, 3:44 AM CDT, 6 hours 12 minutes before
Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
344 AM CDT Sat Jun 25 2022

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-260845-
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-
344 AM CDT Sat Jun 25 2022

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

Expect thunderstorms this morning, especially along and north of
Interstate 80. The main threat is heavy rain, leading to isolated
flash flooding in urban areas.

Scattered thunderstorms will likely redevelop late this afternoon
and evening, mainly along/east of the Mississippi River. A few
strong to severe storms are possible, with the main threats of
large hail and isolated downburst winds.

Afternoon heat index values will range from 95 to 100 degrees
south of Interstate 80.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

There is a low chance of spotter activation between 3 pm and 9 pm,
mainly along and east of the Mississippi River.

RP Kinney

In the hours before

Local storm report, Jun 25, 7:50 AM CDT, 2 hours 6 minutes before
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Local storm report, Jun 25, 8:26 AM CDT, 1 hour 30 minutes before
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Local storm report, Jun 25, 8:32 AM CDT, 1 hour 24 minutes before
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Local storm report, Jun 25, 8:35 AM CDT, 1 hour 21 minutes before
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Local storm report, Jun 25, 9:18 AM CDT, 38 minutes before
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Local storm report, Jun 25, 9:28 AM CDT, 28 minutes before
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The office that day

Everything else NWS Quad Cities, IA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 25, 12:26 AM CDTSpecial Weather StatementDVNIowa64 min
Jun 25, 1:30 AM CDTSpecial Weather StatementDVNBenton, Johnson60 min
Jun 25, 2:30 AM CDTSpecial Weather StatementDVNBenton, Iowa, Johnson, Linn60 min
Jun 25, 3:19 AM CDTFlash Flood WarningDVNJohnson4 hr
Jun 25, 4:43 AM CDTSpecial Weather StatementDVNBuchanan, Cedar, Jones, Linn, Muscatine62 min
Jun 25, 5:44 AM CDTSpecial Weather StatementDVNBuchanan, Cedar, Clinton, Delaware, Jones, Linn and 2 more76 min
Jun 25, 5:48 AM CDTFlash Flood WarningDVNBenton, Buchanan, Linn6 hr
Jun 25, 6:45 AM CDTSevere Thunderstorm WarningDVNCedar, Clinton, Muscatine, Scott45 min
Jun 25, 5:42 PM CDTSpecial Weather StatementDVNMuscatine48 min
Jun 25, 6:23 AM CDTSevere Thunderstorm WarningDVNHenry, Mercer, Rock Island52 min
Jun 25, 6:21 PM CDTSevere Thunderstorm WarningDVNMercer, Rock Island39 min

Nearby

River Flood Warnings in Iowa, 2022Every river flood warning in 2022

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.