Heavy rain-producing showers and storms moved northward across southeast Iowa and west central Illinois during the early morning hours of June 2nd. One storm cell produced wind gusts over 60 mph downing power poles just west of Winfield, IA shortly after 4:00 am CDT.
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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.
The episode as NWS DVN wrote it up.
Heavy rain-producing showers and storms moved northward across southeast Iowa and west central Illinois during the early morning hours of June 2nd. One storm cell produced wind gusts over 60 mph downing power poles just west of Winfield, IA shortly after 4:00 am CDT. A portion of a gravel road (Kentucky Ave) was washed out approximately 1.5 miles southeast of Olds, IA.
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 Jun 2, 2:32 AM CST, 28 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE QUAD CITIES IA IL 332 AM CDT SAT JUN 2 2007 .SYNOPSIS... NEARLY STACKED SURFACE AND UPPER LOWS WERE CENTERED OVER EASTERN SD AT 07Z PER SURFACE ANALYSIS AND WATER VAPOR IMAGERY. LATEST IN SERIES OF VORT LOBES ROTATING AROUND THE LOW WAS PUSHING OUT OF SE NEB/SW IA. PROFILER NETWORK INDICATED THIS WAS ACCOMPANIED BY 85KT JET MAX AT H3 ALONG KS/NE BORDER. COMPLEX OF TSRA FROM EASTERN KS INTO NRN MO WAS SPREADING N-NE WITH THIS LATEST WAVE AND WILL OVERSPREAD CWA THIS MORNING. && .SHORT TERM...TODAY AND TONIGHT... TODAY...INITIAL FOCUS IS ON WIDESPREAD THUNDERSTORMS OVERSPREADING AREA THIS MORNING AND FLOODING POTENTIAL...THEN SEVERE POTENTIAL LATER TODAY. WEAK SURFACE BOUNDARY...EXTENDING ROUGHLY FROM INDEPENDENCE TO SIGOURNEY...HAS HAD NARROW BAND OF SHOWERS AND THUNDERSTORMS TRAINING N-NE SINCE MIDNIGHT. THIS HAS SINCE BEGUN TO EXPAND AND SHIFT EAST IN RESPONSE TO THE LATEST ROUND OF FORCING LIFTING OUT OF N CENTRAL MO. MAIN TSRA COMPLEX WAS LIFTING NORTHEAST INTO SE IA AND NE MO...WITH SEPARATE COMPLEX IN W CENTRAL IL MOVING DUE NORTH. RESULT WILL BE EXPANDING SHOWERS AND THUNDERSTORMS EXPANDING NORTH EARLY THIS MORNING AND HAVE GONE WITH CATEGORICAL TO LIKELY POPS. KDVN 88D REFLECTIVITY AND 1 HOUR RAINFALL RATES AS HIGH AS 1 TO 1.5 IN/HR WITH ACTIVITY MOVING INTO CWA...INDICATING HEAVY RAINFALL POTENTIAL OVER NEXT SEVERAL HOURS MOVING INTO SOUTHERN CWA. ALREADY HAVE FLASH FLOOD WATCH IN PLACE UNTIL 7 AM FOR NE MO AND MUCH OF WESTERN CWA AND WITH DEVELOPMENT ALONG BOUNDARY AND MOVING INTO AREA...WILL LEAVE IN PLACE AND MONITOR TRENDS THIS MORNING. THREAT CERTAINLY LOOKS TO DIMINISH AFTER THIS ROUND OF CONVECTION WITH GUIDANCE SUPPORTING SOME DRYING BY AFTERNOON WITH PRECIP WATER AMOUNTS FROM 1.5 AT 12Z DROPPING TO BELOW 1 INCH BY 18Z. AS FOR SEVERE POTENTIAL...HAVE DEEP SHEAR AGAIN OVER AREA WITH CAPES POSSIBLY PUSHING ABOVE 1000 J/KG BY AFTERNOON. WILL MOST CLOSELY HAVE TO MONITOR THE WEAK N-S BOUNDARY AND POTENTIAL FOR ADDITIONAL MESOSCALE BOUNDARIES THAT MAY ENHANCE SUPERCELL POTENTIAL. ONE NEGATIVE FACTOR IS TIMING OF CURRENT LOBE OF VORTICITY...THAT WILL LIKELY EXIT NORTH OF AREA BEFORE PEAK HEATING. WITH LESS FOCUS FOR ORGANIZED AFTERNOON CONVECTION...HAVE KEPT POPS AT OR BELOW 50 PERCENT. ..SHEETS.. TONIGHT...THE UPPER LEVEL LOW SLOWLY OOZES CLOSER TO THE FORECAST AREA...MOVING FROM SOUTHEAST MN TO NORTHERN WI OVERNIGHT. MOISTURE WRAPPED AROUND THE UPPER LEVEL LOW WILL KEEP US IN LOW LEVEL CLOUDS...AND SHOWERS AND SOME THUNDERSTORMS. THUNDER...AS MID LEVEL LAPSE RATES REMAIN STEEP ENOUGH IN THE VICINITY OF THE LOW FOR THUNDER TO BE POSSIBLE. TEMPERATURES WILL BE MILD WITH MIN TEMPS IN THE MID AND UPPER 50S. .LONG TERM...SUNDAY THROUGH NEXT FRIDAY... SUNDAY THE UPPER LEVEL LOW FINALLY BEGINS TO MOVE OFF TO THE NORTHEAST...BUT WE REMAIN IN AN AREA OF SCATTERED TO LIKELY SHOWERS AND THUNDERSTORMS AND LOW LEVEL CLOUDS FOR SUNDAY THROUGH MONDAY. BY MONDAY NIGHT THE UPPER LOW SHIFTS FAR ENOUGH NORTHEAST FOR THE FORECAST AREA TO TRANSITION TO A NORTHWEST FLOW TYPE PATTERN. IN THIS TYPE OF FLOW THE TRICK IS TIMING IN SHORTWAVES TO PIN DOWN PRECIPITATION CHANCES. IN THIS CASE...THE GFS IS BRINGING IN A SHORTWAVE FOR LATE MONDAY AND EARLY TUESDAY. THE NAM HAS A MORE CHANNELED FEATURE...AND BRINGS IN A LOWER CHANCE FOR PRECIPITATION. FOR NOW HAVE GONE WITH THE GFS SOLUTION...AND WE HAVE A LOW CHANCE OF PRECIPITATION FOR TUESDAY AS THIS WAVE MOVES ACROSS THE AREA. TEMPERATURES FOR SUNDAY THROUGH TUESDAY WILL BE NEAR OR SLIGHTLY BELOW NORMAL...WITH NORTHWEST FLOW AND SCATTERED OR BROKEN SKY COVER. OUR NEXT CHANCE FOR PRECIPITATION COMES TO THE AREA IN THE WEDNESDAY NIGHT THROUGH THURSDAY NIGHT TIME FRAME. THE RIDGE THAT HAD PUSHED UP TO OUR WEST EARLIER IN THE WEEK MOVES EAST AND ALLOWS A NEW UPPER LEVEL TROUGH TO MOVE INTO THE ROCKIES BY EARLY WEDNESDAY. THIS SYSTEM PUSHES A COLD FRONT ACROSS THE FORECAST AREA ON THURSDAY...WHICH BRINGS THE RISK FOR MORE THUNDERSTORMS TO THE AREA. THIS SYSTEM MAY SLOW DOWN...AND WOULD NOT BE SURPRISED TO SEE THE FRONT PASSAGE AND PRECIPITATION CHANCES SLIP BY UP TO 12 HOURS. TEMPERATURES AHEAD OF THIS SYSTEM WILL WARM TO ABOVE NORMAL...RISING INTO THE 80S FOR MAXES AND STAYING IN THE 60S AT NIGHT. ..LE.. && .AVIATION... ENERGY ROTATING AROUND SURFACE AND UPPER LEVEL LOW IN EASTERN SD WILL CAUSE WIDESPREAD SHOWERS AND THUNDERSTORMS EXPANDING NORTH INTO ALL TERMINALS EARLY THIS MORNING. SOME STORMS WILL BE CAPABLE OF HEAVY RAINFALL AND SMALL HAIL...WITH BRIEF LIFR CONDITIONS AT TERMINALS. CONVECTION WILL BECOME LESS ORGANIZED BY AFTERNOON...WITH LESS THAN 30 PERCENT COVERAGE AND MAINLY VFR CIGS WITH SCATTERED CU IN BETWEEN. TONIGHT...ANOTHER ROUND OF SCATTERED SHOWERS AND THUNDERSTORMS WILL OVERSPREAD THE AREA AS THE LOW PASS TO THE NORTH RESULTING IN WIDESPREAD MVFR CONDITIONS. ..SHEETS.. && .DVN WATCHES/WARNINGS/ADVISORIES... IA...FLASH FLOOD WATCH WEST OF A LINE FROM MONTICELLO THROUGH KEOKUK TIL 7 AM. IL...NONE. MO...FLASH FLOOD WATCH FOR CLARK AND SCOTLAND COUNTIES TIL 7 AM. && SHEETS/LE
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE QUAD CITIES IA IL 354 PM CDT FRI JUN 1 2007 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-021000- BENTON IA-BUCHANAN IA-BUREAU IL-CARROLL IL-CEDAR IA-CLARK MO- CLINTON IA-DELAWARE IA-DES MOINES IA-DUBUQUE IA-HANCOCK IL- HENDERSON IL-HENRY IA-HENRY IL-IOWA IA-JACKSON IA-JEFFERSON IA- JO DAVIESS IL-JOHNSON IA-JONES IA-KEOKUK IA-LEE IA-LINN IA-LOUISA IA- MCDONOUGH IL-MERCER IL-MUSCATINE IA-PUTNAM IL-ROCK ISLAND IL- SCOTLAND MO-SCOTT IA-STEPHENSON IL-VAN BUREN IA-WARREN IL- WASHINGTON IA-WHITESIDE IL- 354 PM CDT FRI JUN 1 2007 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...TONIGHT STRONG TO SEVERE THUNDERSTORMS WILL CONTINUE NORTHEAST OF A LINE FROM INDEPENDENCE THROUGH GENESEO FOR THE LATE AFTERNOON. LATE TONIGHT ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS WILL MOVE THROUGH THE AREA. LOCALLY HEAVY RAINS WILL BE POSSIBLE WITH SOME OF THE STRONGER STORMS...ESPECIALLY OVER EAST CENTRAL AND SOUTHEAST IOWA AND NORTHEAST MISSOURI. AREAS WEST OF MONTICELLO...KAHOKA MISSOURI LINE HAVE NEARLY SATURATED SOILS. LOCALLY HEAVY RAINS IN THESE AREAS COULD RESULT IN FLASH FLOODING. A FLOOD WATCH FOR FLASH FLOODING IS IN EFFECT FOR THIS AREA TONIGHT. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THERE IS A NEAR DAILY CHANCE OF THUNDERSTORMS FROM SATURDAY THROUGH THURSDAY. ON SATURDAY CLOUDS AND PRECIPITATION ONGOING EARLY IN THE DAY ARE LIKELY TO LIMIT ANY SEVERE POTENTIAL BY LIMITING HEATING AND DESTABILIZATION OF THE ATMOSPHERE. THUS...THE RISK OF SEVERE WEATHER IS LOW. IF SUNSHINE CAN BREAK THROUGH AND WARM TEMPERATURES MORE THAN EXPECTED...THE RISK OF SEVERE STORMS INCREASES. AT THIS TIME...THERE IS NO CLEAR INDICATION REGARDING THE RISK OF SEVERE STORMS BEYOND SATURDAY. THERE IS THE POSSIBILITY OF LOCALLY HEAVY RAINFALL DURING THE PERIOD WHICH MAY RESULT IN SOME LOCALIZED FLOODING. THIS EXTENDED PERIOD OF WET WEATHER MAY ALSO RESULT IN FURTHER RISES ON AREA RIVERS. .SPOTTER INFORMATION STATEMENT... STORM SPOTTER ACTIVATION MAY BE NEEDED FROM MID AFTERNOON INTO THIS EVENING. DLF
The Quad Cities radar (KDVN), 98 km away, was scanning. The volume nearest the first event began at 08:59 UTC.
1 flash flood, 1 thunderstorm wind. Local standard time, as filed.
A portion of a gravel road (Kentucky Ave) south of Highway 78 washed away in the heavy rains. Time estimated.
A thunderstorm moved northward across the area producing damaging winds, which knocked down power poles across highway 78 just west of Winfield. Time estimated.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Iowa in 2007Every state in 2007This day in weather historyWarnings in Iowa, June 2007
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: 45484, 45198.