Flooding in Iowa, May 27 to 31, 2013

Name: Flooding in Iowa, May 27 to 31, 2013
Start: 2013-05-27T13:00
End: 2013-05-31T23:59
Location: Iowa

May 27 to 31, 2013 · NWS DVN · 12 events in 9 counties and zones

Heavy rains during the last week of May resulted in several tributary rivers as well as parts of the Mississippi River to reach and exceed their respective major flood stage level between May 27th and May 31st.

Where it happened

Every event with a place to put it. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: None recorded
Crop damage: None recorded
Events: 12

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS DVN wrote it up.

What forecasters said that day

The local office's own words before the first event, 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 the first event at May 27, 12:05 PM CST, 55 minutes earlier.

Area forecast discussion, May 27, 12:05 PM CST, 55 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
105 PM CDT MON MAY 27 2013

.UPDATE...
ISSUED AT 655 AM CDT MON MAY 27 2013

BOWING MCS MOVING OUT OF CENTRAL IA HAS WEAKENED CONSIDERABLY OVER
THE PAST COUPLE HOURS...BUT IS STILL ON TRACK TO BRING ANOTHER
ROUND OF RAIN AND AT LEAST ISOLATED THUNDERSTORMS INTO EASTERN IA
THIS MORNING. BARRING ANY UNEXPECTED REDEVELOPMENT...LIGHT TO
MODERATE RAINFALL RATES CAN BE EXPECTED...KEEPING QPF UNDER A HALF
INCH THIS MORNING. FOCUS WILL THEN TURN TO THE NEXT SHORTWAVE
MOVING THROUGH NE MO INTO WESTERN NEB THAT WILL LIKELY TRIGGER THE
NEXT MCS LATER TODAY AND TONIGHT.

&&

.SYNOPSIS...
ISSUED AT 407 AM CDT MON MAY 27 2013

PERSISTENT PATTERN FEATURING A SEEMINGLY ENDLESS CHAIN OF CONVECTIVE
COMPLEXES WITH HEAVY RAIN TO CONTINUE THROUGH AT LEAST TODAY AND
TONIGHT. BROAD UPPER RIDGE REMAINS OVER THE CENTRAL U.S. WITH
NOTABLE EMBEDDED SHORTWAVES OVER THE UPPER MO RIVER VALLEY AND
CENTRAL IL. THE WESTERN IA/EASTERN NEB SHORTWAVE WAS PRODUCING A
LARGE BOWING MCS AS IT WAS FEEDING OFF A 45 KT LOW LEVEL JET WITH
850 MB DEWPOINTS IN THE MID TEENS AND PRECIPITABLE WATER AROUND
150 PERCENT OF NORMAL. AT THE SURFACE...A STATIONARY FRONT
STRETCHED FROM CENTRAL NEB E-SE THROUGH SW IA ACROSS NORTHERN MO
INTO SW IL. SOUTH OF THIS BOUNDARY DEWPOINTS WERE IN THE
60S...WHILE TO THE NORTH EASTERLY WINDS WITH TEMPERATURES IN THE
50S TO LOWER 60S WERE WIDESPREAD ACROSS THE LOCAL FORECAST AREA. A
PERSISTENT BAND OF TRAINING THUNDERSTORMS WITH HEAVY RAINFALL HAD
SET UP OVER THE QUAD CITIES AREA SINCE MIDNIGHT...APPARENTLY WERE
30 KT WINDS AT 4 TO 5 KFT ROUNDING THE EDGE OF A DISSIPATING MCS
OVER W CENTRAL MO WERE IMPINGING ON AN ELEVATED BOUNDARY.

&&

.SHORT TERM...(TODAY)
ISSUED AT 407 AM CDT MON MAY 27 2013

FOCUS REMAINS ON POTENTIAL FOR ADDITIONAL FLASH FLOODING AS ALL
INGREDIENTS REMAIN IN PLACE FOR ADDITIONAL THUNDERSTORM COMPLEXES
WITH HEAVY RAIN TO CONTINUE. IN THE NEAR TERM...ATTENTION TURNS TO
THE LARGE AND POSSIBLY SEVERE BOWING THUNDERSTORM COMPLEX CURRENTLY
ADVANCING FROM A DEVELOPING MCV AND UPPER LEVEL SHORTWAVE IN NW IA
REACHING DOWN ACROSS ALL OF WESTERN IA. MUCH LIKE PREVIOUS
SYSTEMS...THE PARENT MCV WILL LIKELY CONTINUE E-SE...WHILE THE
BOWING COMPLEX RACES SE AND THEN POSSIBLY TURNS MORE SOUTH AND MAY
BRUSH THE FAR SW PORTIONS OF THE FORECAST AREA THIS MORNING. THE
LARGE STRATIFORM AREA WITH EMBEDDED THUNDER AND LIKELY EFFICIENT
RAINFALL PROCESSES WILL LIKELY ADVANCE ACROSS THE FORECAST AREA THIS
MORNING INTO EARLY AFTERNOON AND HAVE FOLLOWED THIS WITH POP TRENDS.
WILL CONTINUE TO MENTION HEAVY RAINFALL AND THE ON-GOING FLASH FLOOD
WATCH WILL CONTINUE. ONCE THIS DISSIPATES OR EXITS...LINGERING
BOUNDARIES AND PERSISTENT ELEVATED INFLOW FROM THE SOUTHWEST MAY
TRIGGER REDEVELOPING THUNDERSTORMS WITH POSSIBLY TRAINING IN THE
AFTERNOON.

MODELS CONTINUE TO SUGGEST THE SURFACE BOUNDARY WILL TRY TO EDGE
NORTHWARD SOME TODAY WITH WINDS GRADUALLY BECOMING MORE SOUTHEAST
ACROSS THE SOUTH TAPPING INTO A WARMER AND MORE MOIST LOW LEVEL
AIRMASS. WILL CONTINUE TO UNDERCUT GUIDANCE HIGHS...AND COUNT ON
LONG ENOUGH BREAKS BETWEEN SHOWERS TO ALLOW TEMPERATURES TO RISE
INTO THE MID 60S NORTH TO LOWER 70S IN THE FAR SOUTH.
SHEETS

.LONG TERM...(TONIGHT THROUGH SUNDAY)
ISSUED AT 407 AM CDT MON MAY 27 2013

MODELS SHOW THE UPPER TROF STILL WEST OF THE AREA OVERNIGHT WITH A
S/W MOVING OUT OF THE TROF...REACHING THE MID-UPPER MISSISSIPPI
VALLEY BY TUESDAY MORNING.  THE WARM FRONT WILL STILL BE SOUTH OF
THE FORECAST AREA THIS EVENING...BUT SHOULD START MOVING NORTH LATE
TONIGHT...AHEAD OF THE APPROACHING S/W. THE LLJ...POINTED AT THE MID
MISSISSIPPI VALLEY OVER NIGHT WILL BE INCREASING TO 40 TO 50 KTS
AHEAD OF THE WAVE WITH PW/S IN THE 1.5 TO 1.75 RANGE /150 TO NEARLY
200 PERCENT OF NORMAL/ OVER THE ENTIRE AREA.  WITH ABUNDANT MOISTURE
AND FORCING...MORE HEAVY RAIN IS LIKELY TONIGHT SO THE FLASH FLOOD
WATCH FOR ALL BUT THE NORTHWEST ILLINOIS COUNTIES HAS BEEN EXTENDED
THROUGH 12Z TUESDAY.  IN ADDITION TO THE HEAVY RAIN THE STRONG LOW
LEVEL SOUTHWESTERLY FLOW AND INCREASING DEEP LAYER SHEAR AHEAD OF
THE MID LEVEL WAVE WILL SUPPORT SOME SEVERE THUNDERSTORMS
OVERNIGHT.  THE MOST LIKELY AREA FOR SEVERE STORMS WILL BE OVER THE
SOUTH HALF NEAR AND JUST NORTH OF THE WARM FRONT.  HAIL AND DAMAGING
WIND GUSTS WILL BE THE PRIMARY CONCERN ALTHOUGH AN ISOLATED TORNADO
IS ALSO POSSIBLE WITH ANY STORMS OCCURRING NEAR THE SURFACE BOUNDARY.

TUESDAY AND WEDNESDAY THE WARM FRONT SHOULD BE NORTH OF THE FORECAST
AREA BY TUESDAY EVENING.  THE WESTERN UPPER TROF WILL MOVING INTO
THE PLAINS...STRENGTHENING THE SOUTHWESTERLY FLOW OVER THE AREA.
EVEN THOUGH THE REGION WILL BE IN THE WARM SECTOR MUCH OF TUESDAY
AND WEDNESDAY ADDITIONAL HEAVY RAIN CAN/T BE RULED OUT.  MODELS SHOW
IMPULSES EJECTING OUT OF THE TROF ACROSS THE REGION.  THESE WILL BE
MOVING THROUGH AN AIRMASS WITH P/WS AT LEAST 150 PERCENT OF NORMAL.
THE AIRMASS WILL ALSO BE UNCAPPED BY TUESDAY AFTERNOON WITH ELEVATED
CAPES WELL OVER 1000J/KG DURING THE OVERNIGHT HOURS.

THURSDAY THROUGH SATURDAY A CLOSED LOW DEVELOPS IN THE UPPER
TROF...CAUSING THE TROF TO SLOW IT/S EASTWARD MOVEMENT. THIS WILL
KEEP THE REGION IN DEEP...WARM AND MOIST SOUTHWESTERLY FLOW.  AS A
RESULT THE REGION WILL STAY UNDER A THREAT OF LOCALLY HEAVY RAINS
WITH ANY THUNDERSTORMS THAT OCCUR.  WITH THE MOIST
SOILS...ADDITIONAL FLOODING CAN/T BE RULED OUT.

MODELS ARE SUGGESTING THAT THE UPPER TROF AND A SURFACE FRONT WILL
PUSH THROUGH THE REGION LATE IN THE WEEKEND WHICH SHOULD BRING DRIER
CONDITIONS TO THE AREA BY SUNDAY.

DLF

&&

.AVIATION...(FOR THE 18Z TAFS THROUGH 18Z TUESDAY AFTERNOON)
ISSUED AT 1256 PM CDT MON MAY 27 2013

BAND OF RAIN MOVING THROUGH TERMINALS NEXT FEW HOURS WITH RUMBLES
OF THUNDER SOUTHEAST OF KBRL. CONDITIONS GENERALLY IFR TO MVFR
BUT EXPECT SOME IMPROVEMENT TO VFR IN PORTIONS OF EASTERN IOWA
FOR A TIME THIS AFTERNOON INTO EARLY EVENING. ADDITIONAL SHOWERS AND
STORMS LIKELY TO DEVELOP OVER THE AREA BY LATE AFTERNOON AND
CONTINUE TONIGHT. BROAD BRUSHED CATEGORICAL WORDING FOR AN EXTENDED
PERIOD TONIGHT INTO TUE AM WITH IFR CONDITIONS LIKELY AT MOST SITES.
THIS WILL BE REFINED WITH LATER FORECASTS AS THE CONVECTION DEVELOPS.

&&

.HYDROLOGY...
ISSUED AT 407 AM CDT MON MAY 27 2013

THE HEAVY RAINS THAT HAVE FALLEN OVER THE SOUTHWEST HALF OF THE
FORECAST AREA SO FAR THIS MEMORIAL DAY WEEKEND HAS CAUSED SOME FLASH
FLOODING NEAR AND SOUTH OF THE INTERSTATE 80 CORRIDOR AS WELL AS
SIGNIFICANT RISES AND FLOODING ALONG TRIBUTARIES IN SOUTHEAST
IOWA AND WEST CENTRAL ILLINOIS. FLOODING WAS ALSO OCCURRING ON THE
MISSISSIPPI RIVER SOUTH OF MUSCATINE. SOILS OVER MUCH OF THIS AREA
ARE SATURATED AND THE PROSPECTS FOR ADDITIONAL HEAVY RAINS THROUGH
TONIGHT LOOK GOOD. THE FLASH FLOOD WATCH FOR MUCH OF THE AREA HAS
BEEN EXTENDED THROUGH TUESDAY MORNING.

THE THREAT OF MORE HEAVY RAINS WILL EXIST THROUGH END OF THE WEEK
WITH THE UPPER LEVEL PATTERN NOT CHANGING MUCH THROUGH SATURDAY.
WITH SEVERAL ROUNDS OF THUNDERSTORMS POSSIBLE MID TO LATE WEEK THE
THREAT OF ADDITIONAL FLASH FLOODING AND SIGNIFICANT RIVER WILL
CONTINUE.

DLF

&&

.DVN WATCHES/WARNINGS/ADVISORIES...
IA...FLASH FLOOD WATCH THROUGH TUESDAY MORNING FOR BENTON-BUCHANAN-
     CEDAR-CLINTON-DELAWARE-DES MOINES-DUBUQUE-HENRY IA-IOWA-
     JACKSON-JEFFERSON-JOHNSON-JONES-KEOKUK-LEE-LINN-LOUISA-
     MUSCATINE-SCOTT-VAN BUREN-WASHINGTON.

IL...FLASH FLOOD WATCH THROUGH TUESDAY MORNING FOR BUREAU-HANCOCK-
     HENDERSON-HENRY IL-MCDONOUGH-MERCER-PUTNAM-ROCK ISLAND-
     WARREN.

MO...FLASH FLOOD WATCH THROUGH TUESDAY MORNING FOR CLARK-SCOTLAND.

&&

UPDATE...SHEETS
SYNOPSIS...SHEETS
SHORT TERM...SHEETS
LONG TERM...DLF
AVIATION...05
HYDROLOGY...DLF

Hazardous weather outlook, May 27, 11:12 AM CST, 1 hour 48 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1212 PM CDT MON MAY 27 2013

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-281000-
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-
1212 PM CDT MON MAY 27 2013

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

THUNDERSTORMS WITH HEAVY RAIN ARE LIKELY TO REDEVELOP OVER THE
OUTLOOK AREA FROM MID TO LATE AFTERNOON THROUGH TONIGHT. A FLASH
FLOOD WATCH IS IN EFFECT FOR MUCH OF THE OUTLOOK AREA THROUGH
EARLY TUESDAY MORNING. AREA RIVERS ARE EXPERIENCING FLOODING. PLEASE
SEE THE LATEST FLOOD STATEMENTS AND FLOOD WARNINGS FOR DETAILS.

THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORMS ACROSS THE OUTLOOK
AREA SOUTH OF INTERSTATE 80 LATE THIS AFTERNOON AND TONIGHT. THE
MAIN SEVERE WEATHER THREATS WILL BE DAMAGING WINDS AND LARGE HAIL.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

PERIODS OF THUNDERSTORMS CAN BE EXPECTED FOR MUCH OF THE UPCOMING
WEEK. CONDITIONS WILL BE FAVORABLE FOR LOCALLY HEAVY RAINS WITH ANY
STORMS THAT OCCUR. SINCE THE GROUND IS SATURATED OVER MUCH OF THE
AREA FROM THE RAINS THIS WEEKEND...ANY HEAVY RAIN COULD RESULT IN
MORE FLASH FLOODING AND ADDITIONAL RISES ON AREA RIVERS.

AT THIS TIME IT APPEARS THE GREATEST  RISK OF SEVERE STORMS WILL BE
TUESDAY AND TUESDAY NIGHT.  THE PRIMARY THREATS WILL BE LARGE HAIL
AND DAMAGING WINDS IN ADDITION TO HEAVY RAIN.

FOR THE REST OF THE WEEK THE THREAT OF SEVERE STORMS IS LOWER...BUT
AN ISOLATED SEVERE STORM CANNOT BE RULED OUT AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

STORM SPOTTER ACTIVATION MAY BE NEEDED LATE THIS AFTERNOON AND
TONIGHT.

A CONFERENCE CALL FOR EMERGENCY MANAGEMENT COORDINATORS WILL BE
CONDUCTED AT 3 PM.

In the hours before

Local storm report, May 27, 9:24 AM CST, 3 hours 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1024 AM CDT MON MAY 27 2013

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

1022 AM     HEAVY RAIN       EAST MOLINE             41.51N 90.43W
05/27/2013  M5.00 INCH       ROCK ISLAND        IL   TRAINED SPOTTER

            TOTAL RAINFALL SINCE SATURDAY. LOCATION IS NEAR THE ROCK
            ISLAND COUNTY FAIRGROUNDS.

&&

HAASE

Local storm report, May 27, 9:30 AM CST, 3 hours 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1030 AM CDT MON MAY 27 2013

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

1029 AM     HEAVY RAIN       1 NW DAVENPORT          41.56N 90.61W
05/27/2013  M5.50 INCH       SCOTT              IA   TRAINED SPOTTER

            TOTAL RAINFALL SINCE SATURDAY. LOCATION IS NEAR KIMBERLY
            AND PINE STREETS IN DAVENPORT.

&&

HAASE

Local storm report, May 27, 9:55 AM CST, 3 hours 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1055 AM CDT MON MAY 27 2013

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

0900 AM     HEAVY RAIN       1 SE PRINCETON          41.37N 89.45W
05/27/2013  M1.44 INCH       BUREAU             IL   COCORAHS

0900 AM     HEAVY RAIN       4 NW ORION              41.39N 90.43W
05/27/2013  M1.34 INCH       HENRY              IL   COCORAHS

0900 AM     HEAVY RAIN       1 SSW DAVENPORT         41.54N 90.61W
05/27/2013  M5.50 INCH       SCOTT              IA   COCORAHS

0900 AM     HEAVY RAIN       2 SW DAVENPORT          41.54N 90.63W
05/27/2013  M5.15 INCH       SCOTT              IA   COCORAHS

0900 AM     HEAVY RAIN       2 NNE LE CLAIRE         41.63N 90.35W
05/27/2013  M3.07 INCH       SCOTT              IA   COCORAHS

0900 AM     HEAVY RAIN       1 ESE ELDRIDGE          41.63N 90.56W
05/27/2013  M3.02 INCH       SCOTT              IA   COCORAHS

0900 AM     HEAVY RAIN       SSW PARNELL             41.58N 92.00W
05/27/2013  M3.00 INCH       IOWA               IA   COCORAHS

0900 AM     HEAVY RAIN       1 ENE NORTH LIBERTY     41.75N 91.59W
05/27/2013  M1.77 INCH       JOHNSON            IA   COCORAHS

0900 AM     HEAVY RAIN       WSW PARK VIEW           41.69N 90.54W
05/27/2013  M1.74 INCH       SCOTT              IA   COCORAHS

0900 AM     HEAVY RAIN       5 W AMANA               41.80N 91.96W
05/27/2013  M1.67 INCH       IOWA               IA   COCORAHS

0900 AM     HEAVY RAIN       7 N AINSWORTH           41.39N 91.55W
05/27/2013  M1.52 INCH       WASHINGTON         IA   COCORAHS

0900 AM     HEAVY RAIN       ESE SOLON               41.81N 91.49W
05/27/2013  M1.34 INCH       JOHNSON            IA   COCORAHS

0900 AM     HEAVY RAIN       WSW QUASQUETON          42.40N 91.76W
05/27/2013  M1.26 INCH       BUCHANAN           IA   COCORAHS

0900 AM     HEAVY RAIN       NW RUTLEDGE             40.31N 92.09W
05/27/2013  M1.45 INCH       SCOTLAND           MO   COCORAHS

0900 AM     HEAVY RAIN       3 NW CEDAR RAPIDS       42.00N 91.71W
05/27/2013  M1.13 INCH       LINN               IA   COCORAHS

0900 AM     HEAVY RAIN       2 NW DELMAR             42.02N 90.63W
05/27/2013  M1.13 INCH       CLINTON            IA   COCORAHS

0900 AM     HEAVY RAIN       1 NE MARION             42.04N 91.58W
05/27/2013  M1.08 INCH       LINN               IA   COCORAHS

0900 AM     HEAVY RAIN       7 NNW KALONA            41.58N 91.75W
05/27/2013  M1.06 INCH       JOHNSON            IA   COCORAHS

0900 AM     HEAVY RAIN       1 NNE MOLINE            41.50N 90.48W
05/27/2013  M3.77 INCH       ROCK ISLAND        IL   COCORAHS

0900 AM     HEAVY RAIN       1 WNW ROSEVILLE         40.74N 90.68W
05/27/2013  M3.30 INCH       WARREN             IL   COCORAHS

0900 AM     HEAVY RAIN       NE ALEDO                41.20N 90.75W
05/27/2013  M2.61 INCH       MERCER             IL   COCORAHS

0900 AM     HEAVY RAIN       2 SE COAL VALLEY        41.43N 90.42W
05/27/2013  M2.37 INCH       HENRY              IL   COCORAHS

0900 AM     HEAVY RAIN       2 N TISKILWA            41.32N 89.51W
05/27/2013  M1.90 INCH       BUREAU             IL   COCORAHS

0900 AM     HEAVY RAIN       NNE REYNOLDS            41.33N 90.67W
05/27/2013  M1.53 INCH       ROCK ISLAND        IL   COCORAHS

0900 AM     HEAVY RAIN       2 N NEW WINDSOR         41.23N 90.45W
05/27/2013  M1.48 INCH       MERCER             IL   COCORAHS

&&

TGP

Local storm report, May 27, 10:00 AM CST, 3 hours before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1100 AM CDT MON MAY 27 2013

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

1029 AM     HEAVY RAIN       1 NW DAVENPORT          41.56N 90.61W
05/27/2013  M5.50 INCH       SCOTT              IA   TRAINED SPOTTER

            TOTAL RAINFALL SINCE SATURDAY. LOCATION IS NEAR KIMBERLY
            AND PINE STREETS IN DAVENPORT.

1022 AM     HEAVY RAIN       EAST MOLINE             41.51N 90.43W
05/27/2013  M5.00 INCH       ROCK ISLAND        IL   TRAINED SPOTTER

            TOTAL RAINFALL SINCE SATURDAY. LOCATION IS NEAR THE ROCK
            ISLAND COUNTY FAIRGROUNDS.

1000 AM     HEAVY RAIN       1 NNW DAVENPORT         41.57N 90.61W
05/27/2013  M1.83 INCH       SCOTT              IA   TRAINED SPOTTER

            24 HOUR TOTAL.

0930 AM     HEAVY RAIN       3 E WALCOTT             41.60N 90.72W
05/27/2013  M5.80 INCH       SCOTT              IA   TRAINED SPOTTER

            48 HOUR TOTAL.

0914 AM     HEAVY RAIN       2 SE IOWA CITY          41.64N 91.51W
05/27/2013  M5.50 INCH       JOHNSON            IA   TRAINED SPOTTER

            RAINFALL IN THE PAST 24 HOURS.

0909 AM     HEAVY RAIN       MONTICELLO              42.24N 91.19W
05/27/2013  M2.56 INCH       JONES              IA   CO-OP OBSERVER

            24 HOUR TOTAL. 2 INCHES CAME DOWN IN ABOUT AN HOUR.

0900 AM     HEAVY RAIN       NNE REYNOLDS            41.33N 90.67W
05/27/2013  M1.53 INCH       ROCK ISLAND        IL   COCORAHS

0900 AM     HEAVY RAIN       2 N TISKILWA            41.32N 89.51W
05/27/2013  M1.90 INCH       BUREAU             IL   COCORAHS

0900 AM     HEAVY RAIN       2 SE COAL VALLEY        41.43N 90.42W
05/27/2013  M2.37 INCH       HENRY              IL   COCORAHS

0900 AM     HEAVY RAIN       SSW PARNELL             41.58N 92.00W
05/27/2013  M3.00 INCH       IOWA               IA   COCORAHS

0900 AM     HEAVY RAIN       1 WNW ROSEVILLE         40.74N 90.68W
05/27/2013  M3.30 INCH       WARREN             IL   COCORAHS

0900 AM     HEAVY RAIN       1 NNE MOLINE            41.50N 90.48W
05/27/2013  M3.77 INCH       ROCK ISLAND        IL   COCORAHS

0900 AM     HEAVY RAIN       7 NNW KALONA            41.58N 91.75W
05/27/2013  M1.06 INCH       JOHNSON            IA   COCORAHS

0900 AM     HEAVY RAIN       1 NE MARION             42.04N 91.58W
05/27/2013  M1.08 INCH       LINN               IA   COCORAHS

0900 AM     HEAVY RAIN       2 NW DELMAR             42.02N 90.63W
05/27/2013  M1.13 INCH       CLINTON            IA   COCORAHS

0900 AM     HEAVY RAIN       3 NW CEDAR RAPIDS       42.00N 91.71W
05/27/2013  M1.13 INCH       LINN               IA   COCORAHS

0900 AM     HEAVY RAIN       NW RUTLEDGE             40.31N 92.09W
05/27/2013  M1.45 INCH       SCOTLAND           MO   COCORAHS

0900 AM     HEAVY RAIN       WSW QUASQUETON          42.40N 91.76W
05/27/2013  M1.26 INCH       BUCHANAN           IA   COCORAHS

0900 AM     HEAVY RAIN       2 NNE LE CLAIRE         41.63N 90.35W
05/27/2013  M3.07 INCH       SCOTT              IA   COCORAHS

0900 AM     HEAVY RAIN       2 SW DAVENPORT          41.54N 90.63W
05/27/2013  M5.15 INCH       SCOTT              IA   COCORAHS

0900 AM     HEAVY RAIN       1 SSW DAVENPORT         41.54N 90.61W
05/27/2013  M5.50 INCH       SCOTT              IA   COCORAHS

0900 AM     HEAVY RAIN       4 NW ORION              41.39N 90.43W
05/27/2013  M1.34 INCH       HENRY              IL   COCORAHS

0900 AM     HEAVY RAIN       1 SE PRINCETON          41.37N 89.45W
05/27/2013  M1.44 INCH       BUREAU             IL   COCORAHS

0900 AM     HEAVY RAIN       ESE SOLON               41.81N 91.49W
05/27/2013  M1.34 INCH       JOHNSON            IA   COCORAHS

0900 AM     HEAVY RAIN       7 N AINSWORTH           41.39N 91.55W
05/27/2013  M1.52 INCH       WASHINGTON         IA   COCORAHS

0900 AM     HEAVY RAIN       5 W AMANA               41.80N 91.96W
05/27/2013  M1.67 INCH       IOWA               IA   COCORAHS

0900 AM     HEAVY RAIN       WSW PARK VIEW           41.69N 90.54W
05/27/2013  M1.74 INCH       SCOTT              IA   COCORAHS

0900 AM     HEAVY RAIN       1 ENE NORTH LIBERTY     41.75N 91.59W
05/27/2013  M1.77 INCH       JOHNSON            IA   COCORAHS

0900 AM     HEAVY RAIN       NE ALEDO                41.20N 90.75W
05/27/2013  M2.61 INCH       MERCER             IL   COCORAHS

0900 AM     HEAVY RAIN       2 N NEW WINDSOR         41.23N 90.45W
05/27/2013  M1.48 INCH       MERCER             IL   COCORAHS

0900 AM     HEAVY RAIN       1 ESE ELDRIDGE          41.63N 90.56W
05/27/2013  M3.02 INCH       SCOTT              IA   COCORAHS

0833 AM     HEAVY RAIN       1 WSW BROCK             40.55N 92.17W
05/27/2013  M4.40 INCH       SCOTLAND           MO   TRAINED SPOTTER

            TOTAL SINCE SATURDAY. 1.80 INCHES IN THE PAST 24 HOURS.

0830 AM     HEAVY RAIN       ALEXIS                  41.06N 90.57W
05/27/2013  M2.00 INCH       WARREN             IL   CO-OP OBSERVER

            24 HOUR TOTAL.

0813 AM     HEAVY RAIN       1 W BETTENDORF          41.56N 90.49W
05/27/2013  M3.23 INCH       SCOTT              IA   TRAINED SPOTTER

            RAINFALL SINCE SATURDAY.

0800 AM     HEAVY RAIN       ELDRIDGE                41.64N 90.57W
05/27/2013  M3.02 INCH       SCOTT              IA   NWS EMPLOYEE

            24 HOUR RAINFALL. 72 HOUR TOTAL 3.68 INCHES.

0700 AM     HEAVY RAIN       VINTON                  42.16N 92.03W
05/27/2013  M1.39 INCH       BENTON             IA   CO-OP OBSERVER

            24 HOUR TOTAL.

0700 AM     HEAVY RAIN       ANAMOSA                 42.11N 91.28W
05/27/2013  M1.27 INCH       JONES              IA   CO-OP OBSERVER

            24 HOUR TOTAL.

0700 AM     HEAVY RAIN       NORTH ENGLISH           41.52N 92.08W
05/27/2013  M2.05 INCH       IOWA               IA   CO-OP OBSERVER

            24 HOUR TOTAL.

0700 AM     HEAVY RAIN       KEWANEE                 41.24N 89.93W
05/27/2013  M2.05 INCH       HENRY              IL   CO-OP OBSERVER

            24 HOUR TOTAL.

0700 AM     HEAVY RAIN       DAVENPORT MUNICIPAL AIR 41.62N 90.58W
05/27/2013  M3.32 INCH       SCOTT              IA   ASOS

            24 HOUR TOTAL. 6 HOUR TOTAL 1.46 INCHES. 54 HOUR TOTAL
            4.02 INCHES.

0700 AM     HEAVY RAIN       MOLINE QUAD-CITY AIRPOR 41.45N 90.50W
05/27/2013  M1.64 INCH       ROCK ISLAND        IL   ASOS

            24 HOUR TOTAL. 54 HOUR TOTAL IS 2.70 INCHES.

0700 AM     HEAVY RAIN       3 SE WILLIAMSBURG       41.64N 91.97W
05/27/2013  M1.07 INCH       IOWA               IA   CO-OP OBSERVER

            24 HOUR TOTAL.

0700 AM     HEAVY RAIN       LOWDEN                  41.86N 90.92W
05/27/2013  M1.07 INCH       CEDAR              IA   CO-OP OBSERVER

            24 HOUR TOTAL.

0640 AM     HEAVY RAIN       DAVENPORT MUNICIPAL AIR 41.62N 90.58W
05/27/2013  M3.57 INCH       SCOTT              IA   OFFICIAL NWS OBS

            24 HOUR TOTAL. 6 HOUR TOTAL WAS 1.52 INCHES. 54 HOUR
            TOTAL IS 4.38 INCHES. OFFICIAL NWS OFFICE OBSERVATION.

0640 AM     HEAVY RAIN       ALEDO                   41.20N 90.75W
05/27/2013  M2.61 INCH       MERCER             IL   CO-OP OBSERVER

            24 HOUR TOTAL.

0600 AM     HEAVY RAIN       4 N COTTER              41.35N 91.47W
05/27/2013  M5.00 INCH       LOUISA             IA   TRAINED SPOTTER

            RAINFALL TOTAL SINCE 3 AM MAY 25.

0600 AM     HEAVY RAIN       LADORA                  41.76N 92.19W
05/27/2013  M1.37 INCH       IOWA               IA   CO-OP OBSERVER

            24 HOUR TOTAL.

0600 AM     HEAVY RAIN       1 SSW DAVENPORT         41.54N 90.61W
05/27/2013  M3.05 INCH       SCOTT              IA   COCORAHS

            12 HOUR RAINFALL TOTAL. STORM TOTAL SINCE 3AM MAY 25 IS
            6.48 INCHES. RAIN HAS STOPPED AT THE TIME OF THE REPORT.

0600 AM     HEAVY RAIN       NEW BOSTON              41.17N 91.00W
05/27/2013  M2.55 INCH       MERCER             IL   CO-OP OBSERVER

            24 HOUR TOTAL.

0600 AM     HEAVY RAIN       GLADSTONE               40.86N 90.96W
05/27/2013  M1.70 INCH       HENDERSON          IL   CO-OP OBSERVER

            24 HOUR TOTAL.

0500 AM     HEAVY RAIN       2 SW DAVENPORT          41.54N 90.63W
05/27/2013  M5.89 INCH       SCOTT              IA   COCORAHS

            RAINFALL TOTAL SINCE 3 AM MAY 25. 1.46 INCHES IN THE PAST
            4 HRS. RAIN HAS STOPPED AT THE TIME OF THE REPORT.

0400 AM     HEAVY RAIN       DAVENPORT MUNICIPAL AIR 41.62N 90.58W
05/27/2013  M1.45 INCH       SCOTT              IA   ASOS

            3 HOUR TOTAL. 51 HOUR TOTAL IS 4.01 INCHES.

0333 AM     HEAVY RAIN       1 W CORDOVA             41.68N 90.34W
05/27/2013  M1.25 INCH       SCOTT              IA   TRAINED SPOTTER

            TOTAL SINCE MIDNIGHT. STORM TOTAL 4.14. HEAVY RAIN
            FALLING AT THIS TIME.

1229 AM     HEAVY RAIN       1 NNW DAVENPORT         41.57N 90.61W
05/27/2013  M3.64 INCH       SCOTT              IA   TRAINED SPOTTER

            24 HOUR TOTAL ENDING AT MIDNIGHT.

1200 AM     HEAVY RAIN       PRINCETON               41.38N 89.47W
05/27/2013  M1.31 INCH       BUREAU             IL   CO-OP OBSERVER

            24 HOUR TOTAL.

1200 AM     HEAVY RAIN       GENESEO                 41.45N 90.15W
05/27/2013  M3.16 INCH       HENRY              IL   CO-OP OBSERVER

            24 HOUR TOTAL.

1200 AM     HEAVY RAIN       ROCK ISLAND             41.48N 90.58W
05/27/2013  M3.64 INCH       ROCK ISLAND        IL   CO-OP OBSERVER

            24 HOUR TOTAL.

&&

TGP

Local storm report, May 27, 11:17 AM CST, 1 hour 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1217 PM CDT MON MAY 27 2013

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

1216 PM     HEAVY RAIN       GALVA                   41.17N 90.04W
05/27/2013  M3.00 INCH       HENRY              IL   EMERGENCY MNGR

            RAIN AMOUNT IN THE PAST 24 HOURS. BASEMENTS FLOODED IN
            GALVA LAST NIGHT.

&&

HAASE

Local storm report, May 27, 12:00 PM CST, 1 hour before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
100 PM CDT MON MAY 27 2013

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

1257 PM     HEAVY RAIN       WILLIAMSBURG            41.67N 92.01W
05/27/2013  M4.30 INCH       IOWA               IA   BROADCAST MEDIA

            RAINFALL SINCE SATURDAY. RELAYED FROM KWWL-TV IN
            WATERLOO.

&&

HAASE

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

12 flood. Local standard time, as filed.

Flood, Iowa

When: May 27, 1:00 PM CST to May 31, 11:59 PM CST
Where: Iowa County, 1.62 mi NW of Marengo to 1.14 mi NE of Marengo
Cause: Heavy Rain
Reported by: River/Stream Gage
Coordinates: 41.818, -92.090

Heavy rains across the region during the last week of May led to a rapid rise on the Iowa River near Marengo. The river rose to and above major flood stage of 18.5 feet during midday on the 27th and then fell below major flood stage to 18.23 feet in the early morning hours on the 28th. Later that evening the river rose back above major flood stage and stayed that way through the end of the month.

Flood, Washington

When: May 27, 10:00 PM CST to May 29, 3:00 PM CST
Where: Washington County, 0.08 mi SSE of Kalona Arpt to 1.33 mi E of Kalona
Cause: Heavy Rain
Reported by: River/Stream Gage
Coordinates: 41.479, -91.729

Heavy rains the last week of May led to rapid rises on the English River near Kalona. The river rose above the major flood stage of 18.0 feet in the mid evening of the 27th and and fell below major flood stage on the evening of the 29th.

Flood, Keokuk

When: May 28, 2:00 AM CST to May 31, 10:00 AM CST
Where: Keokuk County, 1.17 mi S of Hayesville to 2.8 mi S of Lancaster
Cause: Heavy Rain
Reported by: River/Stream Gage
Coordinates: 41.253, -92.250

Heavy rain during the last week of May caused a rapid rise on the Skunk River to the south of Sigourney. The river rose above the major flood stage of 21 feet early in the morning of the 28th and fell below major flood stage on the mid morning of the 31st.

Flood, Clinton

When: May 28, 6:53 AM CST to May 29, 2:44 AM CST
Where: Clinton County, 4 mi SW of Dewitt to 7 mi ESE of Dewitt
Cause: Heavy Rain
Reported by: River/Stream Gage
Coordinates: 41.779, -90.605

Heavy rains the last week in May caused a rapid rise on the Wapsipinicon River 4 miles south of DeWitt. The river rose above the major flood stage of 12.5 feet in the morning hours of May 28th and fell below in the early morning hours of May 29th.

Flood, Scott

When: May 28, 6:53 AM CST to May 29, 2:44 AM CST
Where: Scott County, 3.67 mi WNW of Gambrill to 3.3 mi N of Gambrill
Cause: Heavy Rain
Reported by: River/Stream Gage
Coordinates: 41.771, -90.615

Flood, Washington

When: May 29, 6:00 AM CST to May 31, 8:00 AM CST
Where: Washington County, 2.62 mi N of Brighton to 1.21 mi ENE of Brighton
Cause: Heavy Rain
Reported by: River/Stream Gage
Coordinates: 41.218, -91.820

Heavy rain during the last week of May caused a rapid rise on the Skunk River to the north of Brighton. The river rose above the major flood stage of 18 feet early in the morning of the 29th and remained above major flood stage through the 30th before falling below flood stage on the morning of the 31st.

Flood, Des Moines

When: May 30, 2:00 AM CST to May 31, 11:59 PM CST
Where: Des Moines County, 2.68 mi NNW of Augusta to 1.93 mi NNE of Augusta
Cause: Heavy Rain
Reported by: River/Stream Gage
Coordinates: 40.783, -91.307

Heavy rains during the last week of May led to rapid rises on the Skunk River at Augusta, Ia. The river rose above major flood stage of 20 feet in the early morning hours of the 30th and and very gradually rose through the end of the month.

Flood, Lee

When: May 30, 2:00 AM CST to May 31, 11:59 PM CST
Where: Lee County, 2.98 mi NW of South Augusta to 2.44 mi NNE of South Augusta
Cause: Heavy Rain
Reported by: River/Stream Gage
Coordinates: 40.782, -91.308

Flood, Linn

When: May 30, 12:00 PM CST to May 31, 11:59 PM CST
Where: Linn County, 1.2 mi W of Hiawatha to 0.79 mi WNW of Bertram
Cause: Heavy Rain
Reported by: River/Stream Gage
Coordinates: 42.033, -91.703

Heavy rains the last week in May caused a rapid rise on the Cedar River in Cedar Rapids. The river rose above the major flood stage of 16 feet at midday and remained above the major flood stage through the end of the month.

Flood, Lee

When: May 30, 8:00 PM CST to May 31, 11:59 PM CST
Where: Lee County, 2.04 mi NNW of Keokuk Arpt to 2.33 mi ESE of Galland
Cause: Heavy Rain
Reported by: River/Stream Gage
Coordinates: 40.497, -91.445

Heavy rains during the last week of May resulted in the Mississippi River at Keokuk, IA going above the major flood stage level of 19 feet during the evening of May 29th. It briefly fell about 1/4 of an inch below the major flood stage level during the early evening hours of May 30. It then rose above 19 feet and remained above it through the end of the month.

Flood, Des Moines

When: May 31, 1:30 AM CST to 11:59 PM CST
Where: Des Moines County, 1.16 mi N of Huron to 0.92 mi E of Huron
Cause: Heavy Rain
Reported by: River/Stream Gage
Coordinates: 41.047, -91.027

Heavy rains during the last week of May resulted in the Mississippi River at Gladstone and Burlington going above their respective major flood stage levels.

Gladstone rose above its 14 foot major flood stage level during the early morning of May 31st. It remained above 14 feet through the end of the month.

Burlington rose above its 18 foot major flood stage level during the afternoon of May 29th. It remained above 18 feet through the end of the month.

Flood, Jones

When: May 31, 2:15 AM CST to 11:59 PM CST
Where: Jones County, 0.8 mi WSW of Wapsipinicon Sp to 0.8 mi SSE of Wapsipinicon Sp
Cause: Heavy Rain
Reported by: River/Stream Gage
Coordinates: 42.096, -91.294

Heavy rains during the last week of May resulted in a rapid rise in the Wapsipinicon River at Shaw Road southeast of Anamosa. The river rose above its 19 foot major flood stage level during the early morning hours of of May 31st. The river crested at 21.60 feet in the early evening hours of the 31st and began a slow fall through the end of the month.

What these are

Flood: Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Iowa in 2013 Every state in 2013 This day in weather history Warnings in Iowa, May 2013

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 453788, 453820, 453825, 453770, 453777, 453828, 453832, 453833, 453786, 453783, 453781, 453728.