Flash Flooding and Hail in Iowa, June 26, 2008

Name: Flash Flooding and Hail in Iowa, June 26, 2008
Start: 2008-06-26T02:45
End: 2008-06-26T15:30
Location: Iowa

June 26, 2008 · NWS DMX · 46 events in 14 counties and zones

Where it happened

Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. 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: $392,000
Crop damage: $40,000
Events: 46

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 DMX wrote it up.

Just as the first MCS from the previous night exited the state, another round of strong convection moved in from the northwest. The airmass remained quite unstable in spite of the activity from overnight as unstable air replaced the airmass over the state and reloaded the atmosphere. CAPE remained in the 4000 to 4500 J/kg range with lifted indices in the -10 to -12 C. range at sunrise. Shear continued to be modest, around 20 kts. There was little change in the freezing level overnight, and it remained just over 13,000 feet. The main mode of severe weather during this event was high winds initially, then more of a transition to flash flooding. There were several reports of winds of 65 to 75 MPH. The highest measured wind speed was a 76 MPH wind gust at the Coon Rapids Schoolnet site. Meanwhile, a severe thunderstorm produced a measured 75 MPH wind gust in Dallas County. Winds gusted to 70 MPH or greater in both Carroll and Greene Counties. Elsewhere, reports of 60 to 65 MPH winds were numerous. Though many of the storms produced hail, there were only a few reports of three-quarter to one inch diameter hail. Flash flooding became a problem as the storms traversed the same areas that were hit the previous night. Flash flooding was most notable in Warren, Monroe, Polk, and Boone Counties. Many streets were flooded with water reported anywhere from 8 to 30 inches deep. A strong high/low couplet developed in the wake of the convection. Winds gusted to around 60 MPH in Boone County in the city of Boone for a short period of time.

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 Des Moines, IA wrote its last area forecast discussion before the first event at Jun 25, 11:49 PM CST, 2 hours 56 minutes earlier.

Area forecast discussion, Jun 25, 11:49 PM CST, 2 hours 56 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DES MOINES IA
1249 AM CDT THU JUN 26 2008

.UPDATE...
INCLUSION OF 06Z TAFS AND CANCELLATION OF SVR TSTM WATCH 606.

&&

.PREV DISCUSSION...
THE FORECAST TONIGHT IS QUITE COMPLEX AS THERE ARE SEVERAL FEATURES
OVER/NEAR THE CWA.  CURRENTLY WE ARE QUITE UNSTABLE WITH 4000 J/KG
OF CAPE OVER THE SW THIRD OF IA BUT SHEAR IS QUITE WEAK...GENERALLY
20-25KTS OR LESS.  OVER THE NORTHWEST...A FRONTAL BOUNDARY EXISTS
FROM A LOW IN NE MN.  THE FRONT EXTENDS INTO FAR NW IA THEN ALONG
THE NEB/SDKTA BORDER.  THERE IS WEAK CONVERGENCE ALONG THE SURFACE
FRONT BUT SO FAR IT HAS NOT BEEN ABLE TO PRODUCE/SUSTAIN
THUNDERSTORMS.  ALOFT...THE FLOW IS WEAK AND THERE IS NOT A LOT OF
SUPPORT.  HOWEVER...RUC ANALYSIS DOES INDICATE A COUPLE OF WEAK VORT
CENTERS...ONE OVER NW IA...PROBABLY AIDING IN THE SHOWERS UP
THERE...AND ONE IN NORTHEAST KS MOVING INTO SW IA.  CAPE VALUES IN
THIS AREA ARE EVEN HIGHER THAN IN SW IA AND THERE ARE NO
THUNDERSTORMS DEVELOPING YET.  HAVING SAID ALL THIS...ANY ONE OF
THESE FEATURES CAN TRIGGER STORMS TONIGHT AT ANY TIME.  THE LACK OF
DEVELOPMENT THUS FAR IS THE PERPLEXING PART.

MID/UPPER LEVEL WIND FIELDS ARE BETTER OVER MN CLOSER TO THE LOW.  I
WOULD EXPECT DEVELOPMENT TO INITIATE THERE THEN TRAVEL DOWN THE
FRONTAL BOUNDARY THIS EVENING.  I BELIEVE THE NAM HAS A GOOD HANDLE
ON THE SCENARIO DEVELOPING THE PRECIP FURTHER SOUTH...WHERE THE THE
FRONT WILL EVENTUALLY SAG INTO THE HIGH CAPE AREA.  LATER TONIGHT A
LLJ DEVELOPS AND THIS WILL PROBABLY AID IN THE DEVELOPMENT OF AN
MCS MOVING SLOWLY ACROSS THE STATE OVERNIGHT INTO THURSDAY.  WITH
THE HIGH LEVEL OF UNCERTAINTY OVER JUST WHERE INITIATION WILL BEGIN
I HAVE PLACED CHANCE POPS OVER THE CWA FOR TONIGHT.  THE HIGHEST
POPS STILL REMAIN NORTH BUT WITH FAIRLY DEEP MOISTURE OVER THE
SOUTH...ANY STORMS THAT DEVELOP DOWN THERE WILL ALSO PRODUCE VERY
HEAVY RAINFALL.

MOST ACTIVE PERIOD REMAINS WITHIN THE FIRST 60 HOURS OF THE FORECAST
PERIOD. A FEW THUNDERSTORMS POSSIBLY ONGOING AT THE START OF THE
PERIOD AT 12Z THURSDAY. THE BIGGER SHOW IS STILL EXPECTED TO BE A
DEVELOPING MCS OVER WYOMING LATE THIS EVENING THEN ROLL THROUGH
SOUTH DAKOTA OVERNIGHT BEFORE REACHING NORTHERN IOWA DURING THE DAY
ON THURSDAY. SOME SFC HEATING IS LIKELY AHEAD OF THE SYSTEM AND THIS
SHOULD ALLOW FOR AN INCREASINGLY UNSTABLE AIR MASS TO DEVELOP FOR
THE STORMS TO FEED ON. SEVERE STORMS ALONG WITH AREAS OF HEAVY
RAINFALL WILL BE POSSIBLE. ADDITIONAL STORMS EXPECTED THURSDAY NIGHT
BEFORE THE PRIMARY FRONTAL BOUNDARY ARRIVES ON FRIDAY. GOOD
INSTABILITY LIKELY AGAIN ON FRIDAY WITH MIX LAYER CAPES OF 2000 TO
2500 J/KG HOWEVER THE MAIN UPPER LEVEL FORCING WILL PASS TO THE
NORTH. STILL ENOUGH SHEAR WILL REMAIN FOR SOME SEVERE MULTICELL
STORMS AND ISOLATED SUPER CELLS.

THE WEEKEND WILL BE DOMINATED BY A LARGE UPPER LEVEL LOW MOVING
SLOWING THROUGH THE WESTERN GREAT LAKES REGION BRINGING CYCLONIC
FLOW TO IOWA. HAVE COOLED HIGH TEMPERATURES AND ADDED LOW POPS TO
THE NORTHEAST FOR EACH AFTERNOON AS IMPULSES ROTATE AROUND THE UPPER
LOW. COOL TEMPERATURES THROUGH THE COLUMN WILL LEAD TO SOME
INSTABILITY DURING THE AFTERNOONS. GRADUALLY WARMER NEXT WEEK WITH
THE NEXT BEST CHANCE OF PRECIPITATION ARRIVING TUESDAY NIGHT AND
INTO WEDNESDAY.

&&

.AVIATION...26/06Z
THUNDERSTORMS JUST ABOVE TO EXIT SRN IA INCLUDING AROUND KOTM.  WITH
LIGHT WINDS AND LINGERING LOW LEVEL MOISTURE FROM HUMID WED AND
RECENT RAINS...EXPECT PATCHY FOG TO DEVELOP.  HOWEVER EXTENSIVE
MIDDLE CLOUD COVER FROM DEPARTING STORMS AND THUNDERSTORM COMPLEX
OVER DAKOTAS SHOULD DEEP RADIATIVE COOLING FROM BEING TOO EXTREME SO
ONLY MVFR FOG MENTION FOR NOW.  CONFIDENCE IN DAKOTAS COMPLEX MAKING
IT HERE RATHER LOW FOR THE TIME BEING...SO HAVE IGNORED AT 06Z.
HOWEVER FULLY EXPECT ANOTHER ROUND OF THUNDERSTORMS SOMETIME TODAY
OR THU EVENING.  REALLY DO NOT HAVE A FEEL FOR LOCATION OR TIMING
YET SO JUST MENTIONED CB RATHER THAN 6+ HOURS OF THUNDERSTORMS IN
TERMINALS.

&&

.DMX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

RAD/FAB/BSS

Hazardous weather outlook, Jun 25, 3:02 PM CST, 11 hours 43 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DES MOINES IA
402 PM CDT WED JUN 25 2008

IAZ004>007-015>017-023>028-033>039-044>050-262115-
EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO-
POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN-
WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE-
BOONE-STORY-MARSHALL-TAMA-
402 PM CDT WED JUN 25 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR A PORTION OF CENTRAL IOWA
MAINLY NORTH OF HIGHWAY 30.

.DAY ONE...THIS AFTERNOON AND TONIGHT

SCATTERED THUNDERSTORMS ARE POSSIBLE...MAINLY THIS EVENING AND
OVERNIGHT. HEAVY RAIN IS POSSIBLE WITH A FEW STORMS. ISOLATED
SEVERE STORMS ARE ALSO POSSIBLE WITH LARGE HAIL BEING THE MAIN
THREAT.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

PERIODS OF THUNDERSTORMS ARE EXPECTED THROUGH EARLY SATURDAY
MORNING. AT THIS TIME...IT APPEARS THE BEST THREAT FOR SEVERE
WEATHER WILL BE NORTH OF INTERSTATE 80 THURSDAY AFTERNOON AND
EVENING. THE MAIN THREAT WILL BE SEVERE DAMAGING WINDS AND LARGE
HAIL WITH TORNADOES A SECONDARY THREAT. THE POTENTIAL FOR LOCALLY
HEAVY RAIN IS EXPECTED INTO THURSDAY MORNING...AS WELL AS ON
FRIDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS EVENING AND OVERNIGHT
TONIGHT...AS WELL AS THURSDAY AFTERNOON AND FRIDAY.

IAZ057>062-070>075-081>086-092>097-262115-
AUDUBON-GUTHRIE-DALLAS-POLK-JASPER-POWESHIEK-CASS-ADAIR-MADISON-
WARREN-MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS-MONROE-WAPELLO-
TAYLOR-RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS-
402 PM CDT WED JUN 25 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR A PORTION OF CENTRAL IOWA
MAINLY SOUTH OF HIGHWAY 30.

.DAY ONE...THIS AFTERNOON AND TONIGHT

SCATTERED THUNDERSTORMS ARE POSSIBLE LATER THIS EVENING. A FEW
STORMS MAY BE SEVERE WITH LARGE HAIL AND DAMAGING WIND BEING THE
MAIN THREAT. HEAVY RAINFALL IS ALSO POSSIBLE.

A FEW RIVER FLOOD WARNINGS REMAIN IN EFFECT ALONG THE DES MOINES
RIVER BELOW SAYLORVILLE RESERVOIR AND THE LOWER SOUTH SKUNK
RIVER. FOR ADDITIONAL INFORMATION PLEASE REFER TO THE NATIONAL
WEATHER SERVICE WEBSITE AT WEATHER.GOV/DESMOINES.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

PERIODS OF THUNDERSTORMS ARE EXPECTED THROUGH EARLY SATURDAY
MORNING. AT THIS TIME...IT APPEARS THE BEST THREAT FOR SEVERE
WEATHER WILL BE NORTH OF INTERSTATE 80 THURSDAY AFTERNOON AND
EVENING. THE MAIN THREAT WILL BE SEVERE DAMAGING WINDS AND LARGE
HAIL WITH TORNADOES A SECONDARY THREAT. THE POTENTIAL FOR LOCALLY
HEAVY RAIN IS EXPECTED INTO THURSDAY MORNING...AS WELL AS ON
FRIDAY.

RIVER FLOODING IS EXPECTED TO CONTINUE INTO MID WEEK ALONG THE DES
MOINES RIVER BELOW SAYLORVILLE AND THE LOWER SOUTH SKUNK RIVER
BASIN. CONDITIONS WILL CONTINUE TO IMPROVE...BUT WILL BE MONITORED
IN THE EVENT THAT HEAVY RAINFALL ELEVATES RIVER LEVELS ONCE AGAIN.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED LATER THIS EVENING AND OVERNIGHT
THEN AGAIN THURSDAY AFTERNOON AND FRIDAY.

FAB

In the hours before

Local storm report, Jun 25, 9:06 PM CST, 5 hours 39 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
1006 PM CDT WED JUN 25 2008

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

0959 PM     HAIL             E DES MOINES INT AIRPOR 41.53N 93.66W
06/25/2008  E1.00 INCH       POLK               IA   LAW ENFORCEMENT

            LAW ENFORCEMENT REPORTED QUARTER SIZED HAIL TWO BLOCKS
            EAST OF THE DES MOINES AIRPORT.

1000 PM     HAIL             W WEST DES MOINES       41.57N 93.75W
06/25/2008  E0.75 INCH       POLK               IA   TRAINED SPOTTER

            TRAINED SPOTTER REPORTED PEA TO PENNY SIZED HAIL AT I-35
            AND GRAND AVENUE IN WEST DES MOINES.

1003 PM     HAIL             E DES MOINES INT AIRPOR 41.53N 93.66W
06/25/2008  E1.00 INCH       POLK               IA   PUBLIC

            PUBLIC REPORT OF QUARTER SIZED HAIL AT SW 9TH AND
            MCKINLEY.

&&

LEE

Local storm report, Jun 25, 9:22 PM CST, 5 hours 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
1022 PM CDT WED JUN 25 2008

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

1007 PM     HAIL             NORWALK                 41.50N 93.68W
06/25/2008  E0.88 INCH       WARREN             IA   AMATEUR RADIO

            AMATEUR RADIO OPERATER REPORTED PENNY TO NICKEL SIZED
            HAIL AND WIND GUSTING TO NEAR 60 MPH IN NORWALK.

1003 PM     TSTM WND GST     4 S DES MOINES INT AIRP 41.48N 93.66W
06/25/2008  E65 MPH          WARREN             IA   TRAINED SPOTTER

            TRAINED SPOTTER REPORTED WIND GUSTING TO 65 MPH AND PEA
            SIZED HAIL IN NORWALK.

1010 PM     TSTM WND GST     4 S DES MOINES INT AIRP 41.48N 93.67W
06/25/2008  E70 MPH          WARREN             IA   TRAINED SPOTTER

            TRAINED SPOTTER REPORTED 70 MPH WINDS AND NICKEL SIZED
            HAIL IN NORWALK.

1010 PM     HAIL             3 S DES MOINES          41.54N 93.62W
06/25/2008  E1.25 INCH       POLK               IA   PUBLIC

            PUBLIC REPORTED HAIL UP TO HALF DOLLAR SIZED WITH NICKEL
            SIZED HAIL COVERING THE GROUND AT SW 9TH AND MCKINLEY.

&&

LEE

Local storm report, Jun 25, 9:40 PM CST, 5 hours 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
1040 PM CDT WED JUN 25 2008

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

1038 PM     HAIL             1 S LACONA              41.18N 93.38W
06/25/2008  E1.75 INCH       WARREN             IA   EMERGENCY MNGR

&&

COGIL

Local storm report, Jun 25, 10:30 PM CST, 4 hours 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
1130 PM CDT WED JUN 25 2008

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

1127 PM     HEAVY RAIN       OTTUMWA AIRPORT         41.11N 92.45W
06/25/2008  M2.82 INCH       WAPELLO            IA   ASOS

            2.04 INCHES FELL IN THE PERIOD FROM 1053 PM TO 1121 PM.
            0.99 INCHES FELL IN NINE MINUTES.

&&

SMALL

Local storm report, Jun 25, 10:42 PM CST, 4 hours 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
1142 PM CDT WED JUN 25 2008

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

1132 PM     HAIL             4 N OSCEOLA             41.08N 93.78W
06/25/2008  E0.88 INCH       CLARKE             IA   TRAINED SPOTTER

            PEA TO NICKEL HAIL ALONG INTERSTATE 35 NEAR MILE MARKER
            39.

&&

PODRAZIK

Local storm report, Jun 26, 12:45 AM CST, 2 hours before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DES MOINES IA
145 AM CDT THU JUN 26 2008

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

0647 PM     HAIL             3 NE MADRID             41.91N 93.78W
06/25/2008  E1.00 INCH       BOONE              IA   TRAINED SPOTTER

0650 PM     HAIL             3 NE MADRID             41.91N 93.78W
06/25/2008  E2.50 INCH       BOONE              IA   NSSL-SHAVE

            RELAYED PUBLIC REPORT.

0652 PM     HAIL             6 NE MADRID             41.94N 93.74W
06/25/2008  M3.00 INCH       BOONE              IA   NSSL-SHAVE

            OBLONG HAIL SIZE UP TO 3.25 INCHES.

0656 PM     HAIL             6 NE MADRID             41.94N 93.74W
06/25/2008  E1.50 INCH       BOONE              IA   FIRE DEPT/RESCUE

            HAIL JUST SMALLER THAN GOLFBALL SIZE AT INTERSECTION OF
            300TH AND Y AVENUE.

0659 PM     HAIL             4 WNW DES MOINES        41.61N 93.68W
06/25/2008  E0.88 INCH       POLK               IA   TRAINED SPOTTER

            AT 719 PM A TRAINED SPOTTER REPORTED HAIL ABOUT NICKEL
            SIZE FALLING FOR THE LAST 20 MINUTES.

0701 PM     HAIL             3 N SLATER              41.92N 93.68W
06/25/2008  E1.75 INCH       STORY              IA   EMERGENCY MNGR

            QUARTER TO GOLF BALL HAIL BETWEEN KELLY AND SLATER.

0702 PM     HAIL             KELLEY                  41.95N 93.66W
06/25/2008  E1.00 INCH       STORY              IA   BROADCAST MEDIA

            FROM KCCI-TV VIEWER.

0703 PM     HAIL             6 WSW POLK CITY         41.76N 93.82W
06/25/2008  E0.88 INCH       DALLAS             IA   BROADCAST MEDIA

            DIME TO NICKEL HAIL. KCCI-TV VIEWER.

0707 PM     HAIL             4 ENE AMES AIRPORT      42.01N 93.54W
06/25/2008  M1.00 INCH       STORY              IA   EMERGENCY MNGR

0708 PM     HAIL             3 ENE AMES AIRPORT      42.01N 93.57W
06/25/2008  E0.88 INCH       STORY              IA   TRAINED SPOTTER

            NICKEL TO JUST SHY OF QUARTER SIZED HAIL.

0711 PM     HAIL             5 WSW POLK CITY         41.75N 93.81W
06/25/2008  E0.75 INCH       POLK               IA   AMATEUR RADIO

            PENNY HAIL AT INTERSECTION OF HWY 17 AND HWY 141 NEAR
            GRANGER.

0714 PM     HAIL             NEVADA                  42.02N 93.45W
06/25/2008  E0.75 INCH       STORY              IA   BROADCAST MEDIA

            AT PUBLIC LIBRARY. KCCI-TV VIEWER.

0718 PM     HAIL             W GRANGER               41.76N 93.83W
06/25/2008  E0.88 INCH       DALLAS             IA   STORM CHASER

0719 PM     HAIL             ESE HUBBARD             42.30N 93.29W
06/25/2008  E0.88 INCH       HARDIN             IA   TRAINED SPOTTER

            PLENTY OF ONE HALF INCH TO NICKEL HAIL FALLING. VERY
            HEAVY RAIN AS WELL.

0722 PM     HAIL             NEVADA                  42.02N 93.45W
06/25/2008  E1.75 INCH       STORY              IA   BROADCAST MEDIA

            FROM KCCI-TV VIEWER.

0722 PM     HAIL             E NEVADA                42.02N 93.45W
06/25/2008  E1.00 INCH       STORY              IA   TRAINED SPOTTER

            TRAINED SPOTTER REPORTED HAIL AT LEAST ONE INCH IN
            DIAMATER ON THE SOUTHEAST SIDE OF NEVADA.

0723 PM     HAIL             NEVADA                  42.02N 93.45W
06/25/2008  E1.50 INCH       STORY              IA   AMATEUR RADIO

            QUARTER TO PING PONG BALL SIZED HAIL.

0726 PM     HAIL             3 S NEVADA              41.97N 93.45W
06/25/2008  E1.50 INCH       STORY              IA   TRAINED SPOTTER

            TRAINED SPOTTER REPORTED HAIL MOSTLY PENNY SIZED BUT WITH
            A FEW UP TO 1.5 INCHES IN DIAMETER ABOUT 3 MILES SOUTH OF
            NEVADA...AT THE INTERSECTION OF HIGHWAY F14 AND 270TH
            STREET.

0728 PM     HAIL             5 NNE COLO              42.08N 93.27W
06/25/2008  E1.00 INCH       STORY              IA   TRAINED SPOTTER

0729 PM     HAIL             3 E AMES                42.02N 93.57W
06/25/2008  E1.00 INCH       STORY              IA   BROADCAST MEDIA

            FROM KCCI-TV STAFFER.

0731 PM     HAIL             1 NW NEVADA             42.03N 93.46W
06/25/2008  E1.00 INCH       STORY              IA   TRAINED SPOTTER

            TRAINED SPOTTER REPORTED QUARTER SIZED HAIL IN NEVADA AT
            735 PM...STARTED 4 MINUTES EARLIER.

0733 PM     HAIL             6 SSW WOODWARD          41.78N 93.96W
06/25/2008  E1.75 INCH       DALLAS             IA   TRAINED SPOTTER

            AT 743 PM TRAINED SPOTTER REPORTED HAIL NEAR
            MINBURN...MOSTLY PEA TO PENNY SIZED BUT WITH SOME STONES
            UP TO GOLF BALL SIZE...LASTING APPROXIMATELY 10 MINUTES.

0733 PM     HAIL             5 NW STATE CENTER       42.08N 93.22W
06/25/2008  E1.75 INCH       MARSHALL           IA   TRAINED SPOTTER

0735 PM     HAIL             NEVADA                  42.02N 93.45W
06/25/2008  E1.75 INCH       STORY              IA   BROADCAST MEDIA

            WHO TV RELAYED REPORTS FROM VIEWERS OF GOLF BALL SIZED
            HAIL FALLING IN NEVADA FROM 735 PM TO 740 PM.

0735 PM     HAIL             ELLSWORTH               42.31N 93.58W
06/25/2008  E1.00 INCH       HAMILTON           IA   LAW ENFORCEMENT

0735 PM     HAIL             1 SW CLIVE              41.60N 93.78W
06/25/2008  E1.00 INCH       POLK               IA   TRAINED SPOTTER

            SPOTTER REPORTS QUARTER SIZED HAIL NEAR HICKMAN EXIT OF
            I-80/35 IN WEST DES MOINES.

0735 PM     HAIL             NEVADA                  42.02N 93.45W
06/25/2008  M2.50 INCH       STORY              IA   BROADCAST MEDIA

            KCCI RELAYED REPORT FROM VIEWER OF HAIL MEASURED AT 2.6
            INCHES DIAMETER IN NEVADA AT 735 PM. DELAYED REPORT.

0737 PM     HAIL             NEVADA                  42.02N 93.45W
06/25/2008  E1.00 INCH       STORY              IA   TRAINED SPOTTER

0740 PM     LIGHTNING        5 W ANKENY AIRPORT      41.70N 93.66W
06/25/2008                   POLK               IA   LAW ENFORCEMENT

            HOUSE DAMAGE DUE TO LIGHNING STRIKE.

0742 PM     HAIL             6 SSW WOODWARD          41.78N 93.96W
06/25/2008  E0.88 INCH       DALLAS             IA   TRAINED SPOTTER

0807 PM     FUNNEL CLOUD     N WELLSBURG             42.44N 92.93W
06/25/2008                   GRUNDY             IA   TRAINED SPOTTER

            TRAINED SPOTTER REPORTED STRONG ROTATION AND A DEVELOPING
            FUNNEL CLOUD...NOT ON THE GROUND...ON HIGHWAY T19 ABOUT 5
            MILES NORTH OF WELLSBURG.

0819 PM     HAIL             HUXLEY                  41.90N 93.60W
06/25/2008  E0.75 INCH       STORY              IA   BROADCAST MEDIA

            KCCI RELAYED REPORT FROM PUBLIC OF 3/4 INCH HAIL IN
            HUXLEY.

0822 PM     HAIL             DANA                    42.11N 94.24W
06/25/2008  E0.88 INCH       GREENE             IA   BROADCAST MEDIA

            KCCI RELAYED REPORT FROM PUBLIC OF NICKEL HAIL IN DANA.

0834 PM     HAIL             GRAND JUNCTION          42.03N 94.24W
06/25/2008  E1.50 INCH       GREENE             IA   BROADCAST MEDIA

            FROM KCCI-TV VIEWER

0838 PM     TSTM WND GST     2 N TOLEDO              42.02N 92.58W
06/25/2008  E60.00 MPH       TAMA               IA   FIRE DEPT/RESCUE

            TOLEDO FIRE DEPARTMENT REPORTS WIND GUSTING TO ESTIMATED
            60 MPH ABOUT TWO MILES NORTH OF TOLEDO.

0852 PM     HAIL             BERKLEY                 41.95N 94.11W
06/25/2008  E1.25 INCH       BOONE              IA   LAW ENFORCEMENT

            BOONE COUNTY LAW ENFORCEMENT REPORTS HAIL UP TO 1 1/4
            INCH DIAMATER IN BERKLEY.

0900 PM     HAIL             RIPPEY                  41.93N 94.20W
06/25/2008  E0.88 INCH       GREENE             IA   LAW ENFORCEMENT

0900 PM     HAIL             DES MOINES              41.58N 93.62W
06/25/2008  E0.88 INCH       POLK               IA   FIRE DEPT/RESCUE

            DES MOINES FIRE DEPARTMENT REPORTS DIME TO NICKEL SIZED
            HAIL AT EAST 14TH AND COURT.

0912 PM     HAIL             1 NW BOUTON             41.86N 94.02W
06/25/2008  E1.00 INCH       BOONE              IA   LAW ENFORCEMENT

            BOONE COUNTY LAW ENFORCEMENT REPORTS QUARTER SIZED HAIL
            ON HIGHWAY 169 AT THE DALLAS/BOONE COUNTY LINE.

0912 PM     HAIL             1 N DES MOINES          41.59N 93.62W
06/25/2008  E1.25 INCH       POLK               IA   BROADCAST MEDIA

            2ND AVENUE AND INTERSTATE 80. FROM KCCI-TV. OTHER HAIL TO
            DIME SIZE DOWNTOWN FROM WHO-TV.

0923 PM     HEAVY RAIN       3 W POLK CITY           41.78N 93.78W
06/25/2008  E5.00 INCH       POLK               IA   BROADCAST MEDIA

            STORM TOTAL RAIN FROM KCCI-TV VIEWER.

0935 PM     HAIL             1 SW CLIVE              41.60N 93.78W
06/25/2008  E1.00 INCH       POLK               IA   TRAINED SPOTTER

            SPOTTER REPORTED QUARTER SIZED HAIL AT HICKMAN EXIT OF
            I-80/35.

0937 PM     HAIL             1 S CARLISLE            41.49N 93.49W
06/25/2008  E1.00 INCH       WARREN             IA   EMERGENCY MNGR

            NICKEL TO QUARTER SIZED HAIL.

0938 PM     TSTM WND GST     2 E WAUKEE              41.61N 93.83W
06/25/2008  E65.00 MPH       DALLAS             IA   TRAINED SPOTTER

            LASTED AROUND 2 MINUTES. NO DAMAGE REPORTED.

0940 PM     FLASH FLOOD      1 N GRANGER             41.77N 93.82W
06/25/2008                   DALLAS             IA   PUBLIC

            REPORT OF WATER OVER THE ROAD ON HIGHWAY 17 AT 122ND AVE
            AND NEAR DES MOINES RIVER BRIDGE.

0941 PM     TSTM WND GST     3 SW CLIVE              41.58N 93.80W
06/25/2008  E60.00 MPH       DALLAS             IA   NWS EMPLOYEE

0943 PM     TSTM WND GST     3 SW CLIVE              41.58N 93.80W
06/25/2008  E70.00 MPH       DALLAS             IA   TRAINED SPOTTER

            PEA HAIL ACCOMPANIED WIND.

0944 PM     HAIL             1 NW WINDSOR HEIGHTS    41.62N 93.72W
06/25/2008  E0.88 INCH       POLK               IA   TRAINED SPOTTER

0944 PM     HAIL             1 S URBANDALE           41.62N 93.74W
06/25/2008  E1.75 INCH       POLK               IA   LAW ENFORCEMENT

            LAW ENFORCEMENT REPORTED QUARTER TO GOLF BALL SIZED HAIL
            AT 86TH AND DOUGLAS IN URBANDALE...AND AT 100TH AND
            SWANSON IN CLIVE.

0945 PM     TSTM WND GST     DES MOINES INT AIRPORT  41.53N 93.66W
06/25/2008  E62.00 MPH       POLK               IA   ASOS

0945 PM     HAIL             WEST DES MOINES         41.57N 93.75W
06/25/2008  M1.00 INCH       POLK               IA   BROADCAST MEDIA

            KCLI RELAYED REPORT.

0946 PM     HAIL             3 SW CLIVE              41.58N 93.80W
06/25/2008  E0.88 INCH       DALLAS             IA   NWS EMPLOYEE

0953 PM     TSTM WND GST     3 W WEST DES MOINES     41.57N 93.81W
06/25/2008  M68.00 MPH       DALLAS             IA   TRAINED SPOTTER

            LARGE HAIL OF UNKNOWN SIZE. TREE BRANCHES DOWN.

0959 PM     HAIL             E DES MOINES INT AIRPOR 41.53N 93.66W
06/25/2008  E1.00 INCH       POLK               IA   LAW ENFORCEMENT

            LAW ENFORCEMENT REPORTED QUARTER SIZED HAIL TWO BLOCKS
            EAST OF THE DES MOINES AIRPORT.

1000 PM     HAIL             W WEST DES MOINES       41.57N 93.75W
06/25/2008  E0.75 INCH       POLK               IA   TRAINED SPOTTER

            TRAINED SPOTTER REPORTED PEA TO PENNY SIZED HAIL AT I-35
            AND GRAND AVENUE IN WEST DES MOINES.

1003 PM     TSTM WND GST     4 S DES MOINES INT AIRP 41.48N 93.66W
06/25/2008  E65.00 MPH       WARREN             IA   TRAINED SPOTTER

            TRAINED SPOTTER REPORTED WIND GUSTING TO 65 MPH AND PEA
            SIZED HAIL IN NORWALK.

1003 PM     HAIL             E DES MOINES INT AIRPOR 41.53N 93.66W
06/25/2008  E1.00 INCH       POLK               IA   PUBLIC

            PUBLIC REPORT OF QUARTER SIZED HAIL AT SW 9TH AND
            MCKINLEY.

1007 PM     HAIL             NORWALK                 41.50N 93.68W
06/25/2008  E0.88 INCH       WARREN             IA   AMATEUR RADIO

            AMATEUR RADIO OPERATER REPORTED PENNY TO NICKEL SIZED
            HAIL AND WIND GUSTING TO NEAR 60 MPH IN NORWALK.

1010 PM     HAIL             3 S DES MOINES          41.54N 93.62W
06/25/2008  E1.25 INCH       POLK               IA   PUBLIC

            PUBLIC REPORTED HAIL UP TO HALF DOLLAR SIZED WITH NICKEL
            SIZED HAIL COVERING THE GROUND AT SW 9TH AND MCKINLEY.

1010 PM     TSTM WND GST     4 S DES MOINES INT AIRP 41.48N 93.67W
06/25/2008  E70.00 MPH       WARREN             IA   TRAINED SPOTTER

            TRAINED SPOTTER REPORTED 70 MPH WINDS AND NICKEL SIZED
            HAIL IN NORWALK.

1038 PM     HAIL             1 S LACONA              41.18N 93.38W
06/25/2008  E1.75 INCH       WARREN             IA   EMERGENCY MNGR

1127 PM     HEAVY RAIN       OTTUMWA AIRPORT         41.11N 92.45W
06/25/2008  M2.82 INCH       WAPELLO            IA   ASOS

            2.04 INCHES FELL IN THE PERIOD FROM 1053 PM TO 1121 PM.
            0.99 INCHES FELL IN NINE MINUTES.

1132 PM     HAIL             4 N OSCEOLA             41.08N 93.78W
06/25/2008  E0.88 INCH       CLARKE             IA   TRAINED SPOTTER

            PEA TO NICKEL HAIL ALONG INTERSTATE 35 NEAR MILE MARKER
            39.

&&

SMALL

The radar

The Des Moines radar (KDMX), 113 km away, was scanning. The volume nearest the first event began at 08:45 UTC.

Open the radar archive at this moment

Event by event

25 thunderstorm wind, 15 flash flood, 4 hail, 1 heavy rain, 1 high wind. Local standard time, as filed.

Heavy Rain, Wayne

When: June 26, 2:45 AM CST to 3:56 AM CST
Where: Wayne County, 0.69 mi S of Corydon
Reported by: Trained Spotter
Coordinates: 40.760, -93.320

Two inches of rain was reported.

Flash Flood, Warren

When: June 26, 4:05 AM CST to 9:15 AM CST
Where: Warren County, Medora to 3.87 mi ENE of Cool
Cause: Heavy Rain
Property damage: $30,000
Reported by: Law Enforcement
Coordinates: 41.180, -93.620

Ray Street and Highway 69 was washed out. County G76 and Highway 69 had the shoulder washed out.

Hail, Dallas

When: June 26, 5:42 AM CST
Where: Dallas County, 1.54 mi E of Bouton
Measured: 0.75 in hail
Crop damage: $10,000
Reported by: Fire Department/Rescue
Coordinates: 41.850, -93.990

Thunderstorm Wind, Crawford

When: June 26, 7:00 AM CST
Where: Crawford County, 0.51 mi E of Charter Oak
Measured: 57 kt (66 mph) estimated gust
Property damage: $15,000
Reported by: Law Enforcement
Coordinates: 42.070, -95.590

Multiple trees were down in town.

Thunderstorm Wind, Crawford

When: June 26, 7:00 AM CST
Where: Crawford County, 0.69 mi S of Schleswig
Measured: 57 kt (66 mph) estimated gust
Property damage: $15,000
Reported by: Law Enforcement
Coordinates: 42.160, -95.430

Multiple trees were reported down.

Hail, Greene

When: June 26, 7:03 AM CST
Where: Greene County, 1.38 mi S of Churdan
Measured: 0.88 in hail
Property damage: $1,000
Crop damage: $10,000
Reported by: Fire Department/Rescue
Coordinates: 42.150, -94.480

Thunderstorm Wind, Crawford

When: June 26, 7:07 AM CST
Where: Crawford County, Denison
Measured: 52 kt (60 mph) estimated gust
Property damage: $3,000
Reported by: Law Enforcement
Coordinates: 42.020, -95.350

Single tree felled by winds with other tree damage reported.

Thunderstorm Wind, Calhoun

When: June 26, 7:20 AM CST
Where: Calhoun County, Lake City
Measured: 56 kt (64 mph) estimated gust
Property damage: $15,000
Reported by: Law Enforcement
Coordinates: 42.270, -94.730

Law enforcement received a call from a trained spotter of 60 to 70 MPH wind gusts. Trees were down and the power was out in Lake City.

Thunderstorm Wind, Carroll

When: June 26, 7:20 AM CST
Where: Carroll County, Carroll
Measured: 61 kt (70 mph) estimated gust
Property damage: $5,000
Reported by: Trained Spotter
Coordinates: 42.070, -94.880

Spotter reported 70 MPH winds at the intersection of Highways 30 and 71.

Thunderstorm Wind, Carroll

When: June 26, 7:23 AM CST
Where: Carroll County, 1.03 mi E of Carroll
Measured: 52 kt (60 mph) measured gust
Property damage: $5,000
Reported by: Mesonet
Coordinates: 42.070, -94.860

Measured gust by the Carroll Kuemper Catholic Schoolnet site.

Thunderstorm Wind, Carroll

When: June 26, 7:27 AM CST
Where: Carroll County, 1.03 mi E of Carroll
Measured: 56 kt (64 mph) measured gust
Property damage: $5,000
Reported by: Mesonet
Coordinates: 42.070, -94.860

Thunderstorm Wind, Carroll

When: June 26, 7:31 AM CST
Where: Carroll County, 1.03 mi E of Carroll
Measured: 57 kt (66 mph) estimated gust
Property damage: $10,000
Reported by: Law Enforcement
Coordinates: 42.070, -94.860

Trees were blown down in the city of Carroll.

Thunderstorm Wind, Calhoun

When: June 26, 7:31 AM CST
Where: Calhoun County, Lake City
Measured: 52 kt (60 mph) estimated gust
Property damage: $5,000
Reported by: Trained Spotter
Coordinates: 42.270, -94.730

Thunderstorm Wind, Calhoun

When: June 26, 7:35 AM CST
Where: Calhoun County, Rockwell City
Measured: 56 kt (64 mph) estimated gust
Property damage: $5,000
Reported by: Law Enforcement
Coordinates: 42.400, -94.630

Thunderstorm Wind, Carroll

When: June 26, 7:41 AM CST
Where: Carroll County, Coon Rapids
Measured: 66 kt (76 mph) measured gust
Property damage: $20,000
Reported by: Mesonet
Coordinates: 41.870, -94.680

Measurement was taken by the Coon Rapids Bayard Schoolnet site.

Thunderstorm Wind, Greene

When: June 26, 7:48 AM CST
Where: Greene County, 2.76 mi N of Ralston
Measured: 52 kt (60 mph) estimated gust
Property damage: $3,000
Reported by: Trained Spotter
Coordinates: 42.090, -94.630

Four to six inch tree limbs were blown down.

Hail, Guthrie

When: June 26, 8:02 AM CST
Where: Guthrie County, 3.49 mi S of Jamaica
Measured: 1 in hail
Property damage: $3,000
Crop damage: $10,000
Reported by: Trained Spotter
Coordinates: 41.800, -94.310

Nickel to quarter size hail occurring.

Hail, Calhoun

When: June 26, 8:03 AM CST
Where: Calhoun County, 2.95 mi SSW of Farnhamville
Measured: 0.88 in hail
Crop damage: $10,000
Reported by: Trained Spotter
Coordinates: 42.240, -94.420

Thunderstorm Wind, Calhoun

When: June 26, 8:03 AM CST
Where: Calhoun County, 2.95 mi SSW of Farnhamville
Measured: 52 kt (60 mph) estimated gust
Property damage: $5,000
Reported by: Trained Spotter
Coordinates: 42.240, -94.420

Thunderstorm Wind, Greene

When: June 26, 8:03 AM CST
Where: Greene County, 1.38 mi S of Churdan
Measured: 61 kt (70 mph) estimated gust
Property damage: $5,000
Reported by: Trained Spotter
Coordinates: 42.150, -94.480

Large trees were downed along with pea size hail and heavy rain falling.

Thunderstorm Wind, Webster

When: June 26, 8:07 AM CST
Where: Webster County, 1.68 mi WNW of Ft Dodge
Measured: 52 kt (60 mph) estimated gust
Property damage: $3,000
Reported by: Trained Spotter
Coordinates: 42.510, -94.210

Strong winds with heavy rain. Large tree branches down.

Thunderstorm Wind, Dallas

When: June 26, 8:11 AM CST
Where: Dallas County, 0.86 mi SE of Dawson
Measured: 65 kt (75 mph) measured gust
Property damage: $15,000
Reported by: Broadcast Media
Coordinates: 41.840, -94.220

Report was relayed by KCCI of a viewer with a weather station.

Thunderstorm Wind, Boone

When: June 26, 8:17 AM CST
Where: Boone County, 3.78 mi SSW of Boxholm
Measured: 52 kt (60 mph) estimated gust
Property damage: $3,000
Reported by: Emergency Manager
Coordinates: 42.130, -94.130

Thunderstorm Wind, Webster

When: June 26, 8:20 AM CST
Where: Webster County, 0.69 mi S of Harcourt
Measured: 52 kt (60 mph) estimated gust
Property damage: $15,000
Reported by: Law Enforcement
Coordinates: 42.260, -94.180

Large tree was down on a house. Other limb damage also reported.

Thunderstorm Wind, Story

When: June 26, 8:53 AM CST
Where: Story County, 0.69 mi S of Ames Arpt
Measured: 50 kt (58 mph) measured gust
Property damage: $1,000
Reported by: ASOS
Coordinates: 41.990, -93.620

Flash Flood, Boone

When: June 26, 8:55 AM CST to 2:00 PM CST
Where: Boone County, 2.27 mi SSE of Moingona to 1.36 mi SE of Boone Muni Arpt
Cause: Heavy Rain
Property damage: $50,000
Reported by: Law Enforcement
Coordinates: 41.993, -93.906

Extensive street flooding in Boone. Flash flooding reported at 150th and 139th St. in Boone County.

Thunderstorm Wind, Polk

When: June 26, 8:58 AM CST
Where: Polk County, 0.86 mi SE of Ankeny
Measured: 52 kt (60 mph) estimated gust
Property damage: $5,000
Reported by: Amateur Radio
Coordinates: 41.720, -93.610

High Wind, Boone

When: June 26, 9:00 AM CST to 10:00 AM CST
Where: Boone forecast zone
Measured: 52 kt (60 mph) estimated gust
Property damage: $3,000
Reported by: Trained Spotter
Coordinates: 42.037, -93.932 (the zone’s center; the record gives no point)

A spotter reported one and one half inches of rain in a short period of time, followed by high winds from the northeast.

Flash Flood, Polk

When: June 26, 9:00 AM CST to 2:00 PM CST
Where: Polk County, 1.5 mi SSE of Lovington to 0.85 mi ESE of Urbandale
Cause: Heavy Rain
Property damage: $5,000
Reported by: Trained Spotter
Coordinates: 41.632, -93.685

One foot of running water over the intersection of Douglas and Merle Hay Roads.

Flash Flood, Polk

When: June 26, 9:00 AM CST to 2:00 PM CST
Where: Polk County, 0.55 mi NNW of Urbandale to 0.75 mi S of Urbandale
Cause: Heavy Rain
Property damage: $5,000
Reported by: Trained Spotter
Coordinates: 41.638, -93.723

Water flowing over Douglas near Merle Hay Road.

Thunderstorm Wind, Story

When: June 26, 9:04 AM CST
Where: Story County, Ames
Measured: 50 kt (58 mph) estimated gust
Property damage: $2,000
Reported by: Trained Spotter
Coordinates: 42.030, -93.620

Large branches were blown down.

Flash Flood, Polk

When: June 26, 9:04 AM CST to 2:04 PM CST
Where: Polk County, 0.4 mi SW of Clover Hills to 0.6 mi ESE of Clover Hills
Cause: Heavy Rain
Property damage: $10,000
Reported by: Law Enforcement
Coordinates: 41.596, -93.756

Valley West Drive and Westown Parkway had two and one half feet of water depth that drowned out a police squad car.

Thunderstorm Wind, Story

When: June 26, 9:05 AM CST
Where: Story County, 1.03 mi E of Huxley
Measured: 50 kt (58 mph) estimated gust
Property damage: $2,000
Reported by: Law Enforcement
Coordinates: 41.900, -93.600

Power lines were reported down.

Thunderstorm Wind, Story

When: June 26, 9:05 AM CST
Where: Story County, 0.86 mi NW of Ames Arpt
Measured: 57 kt (66 mph) estimated gust
Property damage: $10,000
Reported by: Law Enforcement
Coordinates: 42.010, -93.630

South bound Highway 69 was blocked by downed trees and power lines.

Flash Flood, Warren

When: June 26, 9:05 AM CST to 2:15 PM CST
Where: Warren County, 1.62 mi SW of Norwalk to 1.39 mi NNW of Norwalk
Cause: Heavy Rain
Property damage: $5,000
Reported by: Fire Department/Rescue
Coordinates: 41.464, -93.702

Water reported over numerous city streets.

Flash Flood, Boone

When: June 26, 9:07 AM CST to 2:00 PM CST
Where: Boone County, 1.9 mi NNE of Moingona to 0.98 mi WNW of Boone
Cause: Heavy Rain
Property damage: $10,000
Reported by: Emergency Manager
Coordinates: 42.046, -93.917

Water was reported over numerous intersections and streets with 1.80 inches of rainfall in a short period of time.

Flash Flood, Polk

When: June 26, 9:13 AM CST to 2:00 PM CST
Where: Polk County, 1.38 mi S of Des Moines to 1.85 mi SW of Des Moines
Cause: Heavy Rain
Property damage: $25,000
Reported by: Trained Spotter
Coordinates: 41.580, -93.620

Water depth was 9 inches over a 300 foot area of Martin Luther King and Delaware with vehicle stalled out in the intersection.

Flash Flood, Polk

When: June 26, 9:15 AM CST to 2:15 PM CST
Where: Polk County, 1.41 mi SE of Urbandale to 1.11 mi ENE of Windsor Hgts
Cause: Heavy Rain
Property damage: $10,000
Reported by: Fire Department/Rescue
Coordinates: 41.617, -93.699

Two and one half feet of water in the intersection of 63rd and Hickman Road.

Thunderstorm Wind, Jasper

When: June 26, 9:22 AM CST
Where: Jasper County, 0.52 mi W of Prairie City
Measured: 52 kt (60 mph) estimated gust
Property damage: $3,000
Reported by: Law Enforcement
Coordinates: 41.600, -93.240

Thunderstorm Wind, Warren

When: June 26, 9:25 AM CST
Where: Warren County, 0.69 mi S of Indianola
Measured: 52 kt (60 mph) estimated gust
Property damage: $5,000
Reported by: Emergency Manager
Coordinates: 41.360, -93.570

Trees were down on the south side of town.

Flash Flood, Polk

When: June 26, 9:29 AM CST to 2:00 PM CST
Where: Polk County, 1.2 mi ENE of Lovington to 0.65 mi E of Johnston
Cause: Heavy Rain
Property damage: $5,000
Reported by: Amateur Radio
Coordinates: 41.658, -93.679

Water over the road at 55th and Beaver Drive.

Flash Flood, Polk

When: June 26, 9:59 AM CST to 2:00 PM CST
Where: Polk County, 0.34 mi ESE of Mitchellville to 0.88 mi SSE of Mitchellville
Cause: Heavy Rain
Property damage: $5,000
Reported by: Law Enforcement
Coordinates: 41.668, -93.524

On I-80, four inches of water was on the interstate east of the east mix master.

Flash Flood, Polk

When: June 26, 10:24 AM CST to 2:00 PM CST
Where: Polk County, 1.95 mi E of Des Moines to 2.05 mi ESE of Des Moines
Cause: Heavy Rain
Property damage: $5,000
Reported by: Trained Spotter
Coordinates: 41.595, -93.583

Six to 8 inches of water running over the road at 22nd and Logan.

Flash Flood, Monroe

When: June 26, 1:00 PM CST to 3:30 PM CST
Where: Monroe County, 1.67 mi E of Tyrone to 1.6 mi W of Tyrone
Cause: Heavy Rain
Property damage: $5,000
Reported by: Law Enforcement
Coordinates: 40.974, -92.898

Water was over the road on 579th between 224th and 227th. Water was also over the road at 210th Trail.

Flash Flood, Monroe

When: June 26, 1:00 PM CST to 3:30 PM CST
Where: Monroe County, 1.81 mi W of Melrose to 0.46 mi NW of Melrose
Cause: Heavy Rain
Property damage: $10,000
Reported by: Law Enforcement
Coordinates: 40.967, -93.064

Street flooding up to 2 feet deep reported in downtown Melrose. The downtown area was barricaded.

Flash Flood, Monroe

When: June 26, 1:00 PM CST to 3:30 PM CST
Where: Monroe County, 0.7 mi NE of Albia Muni Arpt to 1.84 mi ENE of Tyrone
Cause: Heavy Rain
Property damage: $25,000
Reported by: Law Enforcement
Coordinates: 41.006, -92.759

Water was over the road at 189th and 625th Ave. Several County roads were under water across the western portion of the county. A stalled vehicle had to be pushed out of the water.

What these are

Heavy Rain: Rainfall totals unusual for the place and season that did not produce a flood.
Flash Flood: Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
Hail: Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Thunderstorm Wind: Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
High Wind: Sustained non-thunderstorm winds of 40 mph or more for an hour, or gusts of 58 mph or more.

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

The same day elsewhere

Every storm in Iowa in 2008 Every state in 2008 This day in weather history Warnings in Iowa, June 2008

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: 97554, 97580, 97550, 97555, 97556, 97551, 97558, 97566, 97567, 97568, 97569, 97559, 97570, 97571, 97572, 97560, 97552, 97553, 97573, 97574, 97575, 97669, 97576, 97561, 97577, 97582, 97578, 97549, 97583, 97589, 97562, 97590, 97563, 97564, 97591, 97592, 97593, 97595, 97579, 97565, and more.