An upper level disturbance combined with outflow boundaries from storms during the day of 8 June 2005 to produce scattered overnight thunderstorms across eastern Iowa and northern Illinois. A couple of storms became strong enough to produce marginal severe weather.
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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.
An upper level disturbance combined with outflow boundaries from storms during the day of 8 June 2005 to produce scattered overnight thunderstorms across eastern Iowa and northern Illinois. A couple of storms became strong enough to produce marginal severe weather.
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 9, 2:35 AM CST, 5 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE QUAD CITIES IA IL 335 AM CDT THU JUN 9 2005 .DISCUSSION... A BIT MORE ACTIVE TONIGHT THAN ANTICIPATED WITH WIDESPREAD TSRA WITH FEW PRODUCING NEAR SEVERE HAIL MOSTLY OVER SOUTHERN HALF OF CWA. ACTIVITY APPEARED TO BE INITIALLY RELATED TO ELEVATED RETURN FLOW OF MOISTURE AND WARMER AIR AT H85 INTO AREA CLEARED OUT BY SEVERE SEVERE LINEAR CONVECTION ON WED. THIS ELEVATED BOUNDARY EVIDENT BY LEAD CONVECTION PUSHING TOWARD HIGHWAY 20 AT 08Z WITH RATHER DISORGANIZED CONVECTION FURTHER SOUTH MORE ROOTED IN LOW LEVEL BOUNDARIES WITH ASSISTANCE FROM WEAK MID LEVEL SHORTWAVE RIPPLING THROUGH. WITH ANOTHER BUSY SHORT TERM...FOCUS REMAINS IN THUNDERSTORM CHANCES IN FIRST SEVERAL PERIODS AND MADE ONLY MINOR CHANGES TO EXTENDED. TODAY...SHORT TERM SATELLITE AND 88D TRENDS SHOW LARGE COMPLEX OVER KS AND MO STILL REMNANT FROM MCS OVER DAKOTAS WELL OVER 30 HOURS AGO STARTING TO BREAK UP AS LOW LEVEL JET BEGINNING TO REFOCUS ON HIGH PLAINS. OF 00Z MODELS...NAM APPEARS TO HAVE BETTER HANDLE ON H85 THERMAL AND MOISTURE FIELDS AND QPF PLACEMENT AND FAVORED. MAIN SURFACE SYNOPTIC FRONT EXTENDS FROM SE CO LOW UP THROUGH CENTRAL IA INTO MN WITH WEAK PRESSURE GRADIENT OVER CWA. WITH THE ON-GOING ACTIVITY AND WEAK FORCING...WILL HAVE LIKELY POPS IN SOUTHERN CWA FOR MORNING...WITH SCATTERED POPS OVER ENTIRE AREA THROUGH REMAINDER OF DAY AS WEAK LOW LEVEL BOUNDARY PROGGED BY ALL MODELS TO LINGER OVER CENTRAL PORTION OF CWA THROUGH TODAY. TONIGHT...WARM FRONT AGAIN DEVELOPS TO NORTH WITH FORECAST AREA IN WARM SECTOR. H85 JET POINTS AND SHORTWAVE RIPPLE IN SW FLOW TOWARD MCS DEVELOPMENT OVER NW IA...WHICH SHOULD TRACK TO NORTH OF AREA BUT COULD SEND OUTFLOW SOUTH INTO CWA. WILL KEEP SCATTERED POPS GOING...HIGHEST IN NW. BEYOND...MID LEVEL SW FLOW WILL CONTINUE SAME PATTERN AS PAST FEW DAYS OVER WEEKEND INTO MONDAY. WITH LOW CONFIDENCE IN PLACEMENT OF MESOSCALE BOUNDARIES AND TRACK OF MCS ACTIVITY...KEPT LOW CHANCE POPS GOING AND MADE ONLY MINOR ADJUSTMENTS TO TEMPERATURES. && .DVN WATCHES/WARNINGS/ADVISORIES... IA...NONE. IL...NONE. MO...NONE. SHEETS
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE QUAD CITIES IA IL 529 AM CDT WED JUN 8 2005 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-091100- 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- 529 AM CDT WED JUN 8 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST...EAST CENTRAL...AND SOUTHEAST IOWA...NORTHWEST...NORTH CENTRAL...AND WEST CENTRAL ILLINOIS...AND NORTHEAST MISSOURI. .DAY ONE...TODAY AND TONIGHT THIS AFTERNOON...A LINE OF THUNDERSTORMS FROM NORTHWEST IOWA WILL MOVE ACROSS THE REGION BETWEEN 9 AM AND 4 PM. SOME OF THE STRONGEST STORMS MAY BE CAPABLE FOR LARGE HAIL UP TO THE SIZE OF GOLFBALLS AND STRONG AND POTENTIALLY DAMAGING WINDS OF 50 TO 70 MPH. THE LOCATION OF GREATEST RISK IS SOUTHEAST IOWA...WEST OF A DUBUQUE TO KEOKUK LINE. AT THIS TIME...ANY SEVERE WEATHER SHOULD BE ISOLATED AND NOT BE WIDESPREAD DUE LIMITED TRIGGER OR FORCING WITH THIS LINE. THIS EVENING INTO OVERNIGHT...AREAS OF CONVECTION WILL RE-DEVELOP OR MOVE INTO THE REGION FROM MISSOURI AND CENTRAL IOWA. THE STRONGEST STORMS WILL BE CAPABLE OF LARGE HAIL UP TO THE SIZE OF QUARTERS AND GUSTY WINDS UP TO 40 TO 50 MPH. THE LOCATION OF GREATEST RISK WILL BE ALONG AND ESPECIALLY SOUTH OF I-80. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY SEVERE THUNDERSTORMS WILL BE POSSIBLE THURSDAY INTO THURSDAY NIGHT ACROSS THE ENTIRE AREA. THE MAIN SEVERE WEATHER THREAT WILL BE DAMAGING WIND AND HAIL UP TO THE SIZE OF QUARTERS...ESPECIALLY WITH THUNDERSTORMS THAT BECOME ORGANIZED INTO LINES. THERE WILL ALSO BE A RISK OF HEAVY RAINFALL...WHICH MAY LEAD TO LOCALIZED FLOODING WHERE STORMS IMPACT AREAS ALREADY SATURATED BY REPEATED HEAVY RAIN EVENTS. FRIDAY THROUGH MONDAY...CONDITIONS WILL BE FAVORABLE FOR COMPLEXES OF THUNDERSTORMS TO IMPACT PORTIONS OF THE OUTLOOK AREA EACH DAY....ESPECIALLY IN THE LATE AFTERNOON AND OVERNIGHT HOURS. THERE WILL BE A CONTINUED THREAT FOR SEVERE THUNDERSTORMS WITH LARGE HAIL...DAMAGING WIND...AND HEAVY RAINFALL. IN ADDITION...THERE WILL BE AN INCREASING RISK FOR LOCALIZED FLOODING WHERE SEVERAL ROUNDS OF HEAVY RAINFALL IMPACT THE SAME AREA. MORE DETAILED INFORMATION ON TIMING AND AREAS OF GREATEST RISK WILL BE AVAILABLE AS THIS TIME PERIOD NEARS. .SPOTTER INFORMATION STATEMENT... SPOTTERS AND LOCAL OFFICIALS SHOULD MONITOR CONDITIONS LATER TODAY FOR THE POTENTIAL OF SEVERE WEATHER...MAINLY BETWEEN 2 AND 9 PM. NICHOLS/SHEETS
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1207 AM CDT THU JUN 09 2005
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1155 PM HAIL 4 NE FAIRFIELD 41.05N 91.91W
06/08/2005 0.50 INCH JEFFERSON IA TRAINED SPOTTER
PEA TO DIME SIZE HAIL
&&
DLSPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
243 AM CDT THU JUN 09 2005
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0235 AM HAIL 2 WSW OLIN 41.99N 91.18W
06/09/2005 0.75 INCH JONES IA TRAINED SPOTTER
MOSTLY PEA TO DIME SIZE
&&
DLSThe Quad Cities radar (KDVN), 90 km away, was scanning. The volume nearest the first event began at 08:41 UTC.
1 thunderstorm wind. Local standard time, as filed.
A downburst toppled 5 trees 14 to 16 inches in diameter.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Illinois in 2005Every state in 2005This day in weather historyWarnings in Illinois, June 2005
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: 5462920.