Alert archive / Iowa / River Flood Warnings in 2020

River Flood Warning 40, NWS Quad Cities, IA

May 28, 2020Benton County, Iowa County, Iowa

NWS Quad Cities, IA issued this river flood warning at May 28, 2020, 8:27 PM CDT for Benton County, Iowa County, Iowa. It took effect at May 31, 2020, 1:00 PM CDT. It was in force for 18 days.

The area

The counties it named.

The facts

Issued: May 28, 2020, 8:27 PM CDT (01:27 UTC)
In effect from: May 31, 2020, 1:00 PM CDT
Expired: Jun 18, 2020, 8:27 PM CDT
In force: 18 days
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Flood severity: Minor

Counties Benton County, IA, Iowa County, IA

The radar

The Quad Cities radar (KDVN), 127 km from the middle of the area, began a volume at 01:30 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 Iowa River at Marengo (MROI4). The gauge peaked at 17.58 ft at Jun 11, 2020, 9:00 AM CDT.

Action stage: 13 ft
Minor stage: 15 ft
Moderate stage: 17 ft
Major stage: 19 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05453100, 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 May 28, 6:34 PM CDT, 1 hour 53 minutes earlier.

Area forecast discussion, May 28, 6:34 PM CDT, 1 hour 53 minutes before

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Hazardous weather outlook, May 28, 3:55 AM CDT, 16 hours 32 minutes before

Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
355 AM CDT Thu May 28 2020

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-290900-
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-
355 AM CDT Thu May 28 2020

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

Slow moving storms with embedded thunder will bring heavy
downpours today, with rain rates between 1 and 2 inches per hour
possible. This may result in flash flooding of low lying or poor
drainage areas. Please refer to the Flash Flood Watch for more
information.

The Rock River is experiencing flooding. Please see the latest
Flood Statements and Flood Warnings for details.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter reports of rainfall greater than 1 inch, and any flooding
would be appreciated.

In the hours before

Local storm report, May 28, 4:18 PM CDT, 4 hours 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
418 PM CDT THU MAY 28 2020

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

0407 PM     HEAVY RAIN       2 ESE FAIRFIELD         41.00N 91.94W
05/28/2020  E1.00 INCH       JEFFERSON          IA   TRAINED SPOTTER

            CORRECTS VALUE FROM PREVIOUS HEAVY RAIN
            REPORT FROM 2 ESE FAIRFIELD. HEAVY RAIN HAS
            RESULTED IN SOME MINOR FLOODING IN THE AREA.
            DRIVEWAY WAS FLOODED, LOW SPOTS, AND CREEK
            IS RUNNING HIGH. SOME GRAVEL ROADS NORTH OF
            TOWN HAD WATER ON THEM. NOTHING LIFE
            THREATENING.

&&

Special weather statement, May 28, 4:25 PM CDT, 4 hours 2 minutes before

Special Weather Statement
National Weather Service Quad Cities IA/IL
425 PM CDT Thu May 28 2020

ILC011-155-282230-
Putnam-Bureau-
425 PM CDT Thu May 28 2020

...HEAVY RAIN FROM THUNDERSTORMS WILL AFFECT CENTRAL PUTNAM AND
EASTERN BUREAU COUNTIES UNTIL 530 PM CDT...

At 425 PM CDT, radar indicated heavy rain from thunderstorms falling
7 miles south of Tiskilwa, or 9 miles southwest of Hennepin, moving
northeast at 50 mph.

Locations impacted include...
Princeton, Hennepin, Spring Valley, Henry, DePue, Ladd, Tiskilwa, La
Moille, Bureau Junction, Putnam, Mark, Cherry, Malden, Seatonville,
Milo, Arlington, Dover, Hollowayville, Spring Valley Airport and Coal
Hollow.

This includes the following highways...
 Interstate 80 in Illinois between mile markers 53 and 71.
 Interstate 180 between mile markers 1 and 13.

Torrential rainfall is occurring with these thunderstorms. Minor
flooding of low lying areas, creeks, streams and urban areas is
possible. If you encounter water over a roadway, do not drive
through it.

LAT...LON 4110 8935 4110 8936 4115 8933 4115 8964
      4123 8964 4159 8941 4159 8917 4140 8916
TIME...MOT...LOC 2125Z 202DEG 45KT 4119 8951

Gibbs

Special weather statement, May 28, 4:36 PM CDT, 3 hours 51 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Quad Cities IA/IL
436 PM CDT Thu May 28 2020

ILZ017-018-282230-
Bureau-Putnam-
436 PM CDT Thu May 28 2020

...A line of Thunderstorms producing funnel clouds will affect
Putnam and eastern Bureau Counties...

At 435 PM CDT...A line of thunderstorms were located along a line
extending from and moving northeast at 30 MPH.

LOCATIONS IMPACTED INCLUDE...
Princeton, Hennepin, Spring Valley, Henry, DePue, Granville, Ladd,
Wyanet, Tiskilwa, La Moille, Dalzell, Bureau Junction, McNabb,
Putnam, Mark, Ohio, Cherry, Malden, Seatonville and Magnolia.

Funnel clouds of this nature are short lived and rarely touch the
ground. However, if you notice one approaching the ground, move
indoors to a place of safety.

The National Weather Service will continue to closely monitor the
situation. Please forward reports of funnel cloud sightings to the
nearest law enforcement agency for relay to the National Weather
Service.

LAT...LON 4110 8936 4112 8934 4115 8933 4115 8964
      4123 8964 4123 8966 4159 8950 4158 8917
      4110 8916
TIME...MOT...LOC 2135Z 223DEG 28KT 4158 8916 4092 8967

Gibbs

Local storm report, May 28, 5:29 PM CDT, 2 hours 58 minutes before

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Local storm report, May 28, 7:07 PM CDT, 1 hour 20 minutes before

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Local storm report, May 28, 8:04 PM CDT, 23 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 29, 9:34 AM CDT	River Flood Warning	DVN	Cedar, Louisa, Muscatine	6 days

Nearby

River Flood Warnings in Iowa, 2020 Every river flood warning in 2020

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.