1 thunderstorm wind, as filed by the National Weather Service.
Every event with a place to put it. Tap one for its entry below.
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 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 Aug 9, 2:29 PM CST, 5 hours 25 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE QUAD CITIES IA IL 329 PM CDT TUE AUG 9 2005 .SYNOPSIS...SURFACE COLD FRONT EARLY THIS AFTERNOON STRETCHED FROM WEAK SURFACE LOW IN N CENTRAL NEB...NORTHEAST TO WESTERN UPPER MICHIGAN. THIS BOUNDARY LIT AROUND MID AFTERNOON WITH THUNDERSTORMS ALONG THIS STRETCH WITH HELP OF MID LEVEL SHORTWAVE AND VERY UNSTABLE AIRMASS. SURFACE DEWPOINTS AHEAD OF BOUNDARY WERE IN LOWER TO MID 70S FROM SW IA TO SE MN. LOCALLY...DRIER SOIL CONDITIONS AND WEAKER MOISTURE CONVERGENCE WAS HOLDING DEWPOINTS PRIMARILY IN 60S. TEMPERATURES...HOWEVER...WERE PUSHING MID TO UPPER 90S AND MSAS INDICATED NO CAP IN PLACE FOR SURFACE BASED CONVECTION. WOULD NOT BE SURPRISED TO SEE ISOLATED THUNDERSTORMS LATE AFTERNOON INTO EVENING AS ALREADY DEVELOPING OVER PORTIONS OF SOUTH CENTRAL IA...NORTHERN MO AND N CENTRAL IL. && .SHORT TERM...(TONIGHT THROUGH WEDNESDAY)...TIMING AND COVERAGE OF THUNDERSTORMS MAIN CHALLENGE AS COLD FRONT PUSHES SOUTHEAST ACROSS FORECAST AREA TONIGHT INTO MIDDAY WEDNESDAY. WILL HAVE ISOLATED PULSE TYPE SHOWERS AND THUNDERSTORMS FROM LATE THIS AFTERNOON INTO EVENING...THEN FOCUS WILL BE ALONG MAIN FRONT AND POTENTIAL OUTFLOWS THAT PUSH OUT AHEAD OF IT. CURRENT SPEED WOULD HAVE IT REACHING FAR NW 01Z AT EARLIEST. TIMING ADVERTISED BY BOTH NAM AND GFS PLACE THE BOUNDARY FROM FREEPORT TO WASHINGTON BY 06Z LOOKS REASONABLE...WITH THE BOUNDARY THEN CLEARING SE PORTIONS OF CWA BY 12Z. LINEAR CONVECTIVE COMPLEX SHOULD THEN BE IN DISSIPATING MODE. SOME POTENTIAL FOR SEVERE THUNDERSTORMS WITH MARGINAL HAIL AND DAMAGING WIND IN BOWING SEGMENTS MAINLY ON IA SIDE NORTH OF HIGHWAY 30 BEFORE MIDNIGHT...WHERE JET LEVEL DIVERGENCE...MID LEVEL QG FORCING...AND FAVORABLE SW H85 MOISTURE FEED/CONVERGENCE IMPINGE ON AREA WITH SURFACE BASED CAPES POTENTIALLY STILL ABOVE 2000 J/KG. PLACED HIGHEST PRECIPITATION POPS THERE WITH LIKELY FROM LATE EVENING OVERNIGHT...TAPERING THROUGH CHANCE TO SLIGHT CHANCE AS FRONT MOVES SOUTHEAST ACROSS CWA WITH ATTENDANT SHOWERS DISSIPATING IN DIURNAL DECAYING MODE. WEDNESDAY MORNING...KEPT LOW CHANCE POPS FOR LINGERING POST FRONTAL ACTIVITY...THEN JUST ISOLATED IN FAR SOUTH IN AFTERNOON. COOLER AND SLIGHTLY DRIER AIRMASS TO FOLLOW WEDNESDAY. LOOKING AT CURRENT TEMPERATURES IN AIRMASS BEHIND THE FRONT... TRENDED HIGHS CLOSEST TO COOLEST NGM MOS WITH LOWER 80S NORTH...TO UPPER 80S FAR SOUTH. ..SHEETS.. && .LONGER TERM...(WEDNESDAY NIGHT THROUGH NEXT TUESDAY) PERIOD TO BE CHARACTERIZED BY EPISODES OF STORMS AND SHOWERS WITH SIGNIFICANT TO HEAVY RAINS OVER ALMOST ALL OF FORECAST AREA BY SUNDAY. ALL SOLUTIONS CONTINUE PROGNOSIS OF SEASONALLY STRONG FRONT TO STALL OVER AREA WITH DISTURBANCES TO MOVE ALONG AND NORTH OF THIS BOUNDARY. STRENGTH OF UPPER JET AND COPIOUS AMOUNTS OF DEEP MOISTURE (SOME FROM SW MONSOON) TO RESULT IN ORGANIZED CONVECTIVE SYSTEMS WITH COOL POOLS ALLOWING FOR LOTS OF REDEVELOPMENT ESPECIALLY THURSDAY AND FRIDAY. ALL SOLUTIONS SUPPORT TRAINING OF STORMS (STORMS MOVING OVER SAME LOCATIONS MORE THAN ONCE) AND MEET CRITERIA OF HEAVY QPF ALONG E-W BOUNDARY STALLED ACROSS MIDWEST AS SUGGESTED BY MADDOX AND OTHERS. HAVE UPPED POPS TO LIKELY THURSDAY WITH FIRST MCS/MCC AND LOCALLY HEAVY RAINS POSSIBLE. LOCAL HEAVY QPF CALCULATIONS FOR OUR AREA STILL SUGGEST SWATH OF AROUND ONE INCH AMOUNTS WITH LOCALLY 2 TO 5 INCHES FOR THURSDAY SYSTEM. THEN NEXT SYSTEM TO DEVELOP OR REDEVELOP BY FRIDAY WITH PERIODS OF SHOWERS/STORMS THAT COULD PRODUCE ADDITIONAL HEAVY RAINS. LOCAL BLEP/HELP CALCULATIONS SUGGEST ISOLATED SEVERE POTENTIAL WITH HEATING IF TEMPS REBOUND INTO UPPER 80S WITH LOWER 70 DEWPOINTS... WITH HAIL UP TO NICKELS AND GUSTY WINDS UP TO 60 MPH. HOWEVER...MAIN ISSUE WILL BE SIGNIFICANT RAINS THROUGH PERIOD. LOWERED MAX TEMPS A BIT AS CONFIDENCE AND TIMING OF CLOUDS AND PRECIPITATION MORE EVIDENT THURSDAY AND INTO WEEKEND. STILL POSSIBLE TEMPS IN NORTH/CENTRAL SECTIONS OF FORECAST AREA MAY BE TOO MILD SAT- TUE WHICH PASS TO LATER SHIFTS. LARGER SCALE FEATURES PASSING OVER FORECAST AREA SUGGEST WELCOME RAINS TO BE QUITE SIGNIFICANT WITH MOST LOCATIONS RECEIVING AN ACCUMULATION OF AT LEAST INCH OR TWO WITH LOCALIZED TOTALS OF 5 5 INCHES OR MORE. VIGOROUS ZONAL FLOW (FAVORABLE FOR ORGANIZED PRECIPITATION) STILL SUGGESTED FOR 7 TO 15 DAY TIME PERIOD (AUGUST 16-24). ..NICHOLS.. && .DVN WATCHES/WARNINGS/ADVISORIES... IA...NONE. IL...NONE. MO...NONE. && SHEETS/NICHOLS
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE QUAD CITIES IA IL 1245 PM CDT TUE AUG 9 2005 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-101000- 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- 1245 PM CDT TUE AUG 9 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL IOWA...SOUTHEAST IOWA...NORTHWEST ILLINOIS...NORTHEAST MISSOURI... NORTHEAST IOWA...WEST CENTRAL ILLINOIS AND NORTH CENTRAL ILLINOIS. .DAY ONE...THIS AFTERNOON AND TONIGHT TONIGHT. A COLD FRONT WILL MOVE INTO THE REGION PRODUCING A LINE OF THUNDERSTORMS. SOME OF THE STRONGEST STORMS MAY APPROACH OR BRIEFLY REACH SEVERE LEVELS BEFORE MIDNIGHT. THE PRIMARY RISK WITH THESE STORMS WILL BE HAIL UP TO THE SIZE OF NICKELS AND GUSTY WINDS UP TO 50 MPH OR POSSIBLY NEAR 60 MPH. LOCATIONS MAINLY NORTH OF HIGHWAY 30 WILL BE MOST SUSCEPTIBLE FOR STRONG STORMS. .DAYS TWO THROUGH SEVEN...THURSDAY NIGHT THROUGH MONDAY THURSDAY NIGHT THROUGH SUNDAY. A SEASONALLY STRONG FRONT WILL STALL ACROSS THE REGION PRODUCING ROUNDS OF THUNDERSTORMS AND SHOWERS. SOME OF THESE STORMS MAY APPROACH SEVERE LEVELS MAINLY IN THE LATE AFTERNOON AND EVENING HOURS THURSDAY INTO SATURDAY. THE GREATEST THREAT WILL BE REPEATED RAINS...POSSIBLY LOCALLY HEAVY THAT MAY PRODUCE MINOR FLOODING IN FLOOD PRONE AREAS BY THIS WEEKEND. AFFECTED INDIVIDUALS SHOULD MONITOR CONDITIONS FOR FURTHER UPDATES ON THE TIMING...RISK AND POTENTIAL AFFECTED LOCATIONS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS POSSIBLE NORTHWEST OF A GALENA ILLINOIS TO A WILLIAMSBURG IOWA LINE TIL LATE EVENING TONIGHT. NICHOLS
The La Crosse radar (KARX), 148 km away, was scanning. The volume nearest the first event began at 01:54 UTC.
1 thunderstorm wind. Local standard time, as filed.
General public reported tree branches down with wind estimated over 60 mph.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Iowa in 2005Every state in 2005This day in weather historyWarnings in Iowa, August 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: 5533328.