A warm front and an upper level disturbance sparked some showers and thunderstorms during the evening of September 5. Some damaging winds knocked down trees and power lines in parts of Rock Island County, but for the most part severe weather remained far north of the area in central Wisconsin.
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 episode as NWS DVN wrote it up.
A warm front and an upper level disturbance sparked some showers and thunderstorms during the evening of September 5. Some damaging winds knocked down trees and power lines in parts of Rock Island County, but for the most part severe weather remained far north of the area in central Wisconsin.
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 Sep 5, 1:45 PM CST, 7 hours 5 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE QUAD CITIES IA IL 245 PM CDT SUN SEP 5 2010 .SYNOPSIS... ANALYSIS AT 2 PM SHOWS STRONG LOW PRESSURE SYSTEM DEVELOPING IN THE HIGH PLAINS WITH LOW LEVEL JET OF 40-50+ KTS. LOTS OF ELEVATED CLOUDS WITH STRONG FORCING FROM LOW LEVEL JET RESULTING IN SOME HIGH BASED SHRA WITH ISOLATED TSRA IN IOWA. LOCAL NOWCAST TOOLS COUPLED WITH APPROACHING PRESSURE FALL FIELD MOVING INTO EASTERN IOWA DOES SUPPORT SCATTERED SHRA AND TSRA THIS EVENING AND OVERNIGHT ALONG AND NORTH OF HIGHWAY 34. NOCTURNAL LOW LEVEL JET TONIGHT MAY PHASE WITH WEAK SHORT WAVES TO ALLOW FROM STRONGER TSRA WITH SMALL HAIL A POSSIBILITY FOR LATER SHIFTS. UPSTREAM PACIFIC NORTHWEST ENERGY STRONGER WHICH ALL SOLUTIONS TRENDING TOWARD WITH LOTS OF WIND OVER AREA NEXT 36 HOURS AS DEEP SFC LOW MOVES EAST INTO GREAT LAKES. BEST FORCING SUGGESTED BY 80KM NAM-WRF AND GFS NEXT 36+ HOURS. && .SHORT TERM...TONIGHT AND MONDAY... TONIGHT...WENT WITH 20 TO 30 POPS OVER NORTH 2/3 OF AREA DUE TO STRONG ELEVATED FORCING. WINDS OF 10-15 MPH TONIGHT WITH PARTLY CLOUDY SKIES TO KEEP BL MIXED. THIS SHOULD KEEP MINS NEAR 60 DEGREES MOST LOCATIONS WITH POSSIBLY LOWER 60S OVER MUCH OF THE REGION. MONDAY...DEEP MIXING AND GOOD HEATING TO RESULT IN A COUPLED BLEND OF SUPERADIABATIC LAPSE RATE AND NON-HYDROSTATIC COMPRESSIONAL HEATING. THIS SHOULD ALLOW WITH LOTS SUNSHINE FOR HIGH TEMPS ABOVE GUIDANCE WITH LOCAL TOOLS AND TECHNIQUES SUGGESTING MAXES OF 85 TO 88 DEGREES OVER SOUTH 1/2 AND 80 TO 84 NORTH OF I-80. REVIEW OF CALCULATIONS SHOW WINDY CONDITIONS AFTER 11 AM WITH GUSTS TO 30 TO 35 MPH MUCH OF THE AFTERNOON OVER MOST OF THE AREA. THIS WILL TAKE THE EDGE OFF THE WARM CONDITIONS. KEPT SOME AM SHRA/TSRA NORTH SECTIONS DUE TO EXITING SHORT WAVE. ..NICHOLS.. .LONG TERM...MONDAY NIGHT THROUGH NEXT SUNDAY... AS EXPECTED...MOISTURE AVAILABILITY IS NOW PLAYING SIGNIFICANTLY INTO THE PRECIP CHANCES MONDAY NIGHT/TUESDAY. COLD FRONT SWEEPS THROUGH MONDAY NIGHT BRINGING SHRA AND MAYBE A TSRA. FORCING/CONDENSATION PRESSURE DEFICITS INDICATE THE PRECIP SHOULD BE CONFINED TO THE FRONT. LINGERING PRECIP SHOULD BE SEEN ALONG/SOUTH OF HWY 34 TUESDAY MORNING AS A DRY SLOT MOVES INTO THE AREA. LOW LEVEL LAPSE RATES INCREASE DURING THE DAY. STRONGEST WINDS ARE ACROSS THE NORTHERN CWFA AND HEADLINES FOR WIND MAY BE NEEDED FOR AREAS ALONG/NORTH OF HWY 30. TUES NIGHT THROUGH WED NIGHT QUIET CONDITIONS AS CANADIAN HIGH PRESSURE MOVES ACROSS THE AREA. ATTENTION THEN TURNS TO THURSDAY AND THE NEXT SYSTEM. MODEL TRENDS SHOW LOW LEVEL EASTERLY FLOW PERSISTS ACROSS THE AREA THURSDAY MORNING. MOST MODELS SHOW HIGH CONDENSATION PRESSURE DEFICITS IN THE LOWEST LEVELS AND THE 12Z MODEL RUNS ARE HOLDING ON TO THE DRY AIR LONGER. THUS THURSDAY MORNING SHOULD BE DRY WITH PRECIP BREAKING OUT IN THE WAA AND A SLIGHT VEERING OF THE LLJ DURING THE AFTERNOON. THE POSSIBILITY DOES EXIST THAT THURSDAY MAY REMAIN DRY IF THE SFC HIGH IS STRONGER THAN DEPICTED. THURS NIGHT/FRI THE LLJ POINTS RIGHT INTO THE CWFA WITH A LARGE INFLUX OF MOISTURE. POPS HAVE BEEN RAISED BOTH PERIODS BUT ARE PROBABLY STILL TOO LOW. THE INFLUX OF MOISTURE POINTS TO A MODERATE RAIN EVENT. THERE MAY BE A BRIEF BREAK IN PRECIP ON FRIDAY AFTER THE WARM FRONT LIFTS NORTH. FRIDAY NIGHT/SATURDAY THE COLD FRONT SWEEPS THROUGH THE AREA. THE BETTER POPS SHOULD BE FRIDAY NIGHT IN THE DEEPER MOISTURE. POPS HAVE BEEN RAISED TO LOW CHC SATURDAY ON THE IDEA THAT THE SYSTEM MAY SLOW DOWN DUE TO THE MID WEEK HIGH BEING STRONGER THAN PROGGED. KEPT THE SCHC GOING IN THE EASTERN CWFA SATURDAY NIGHT ON THIS PREMISE. SUNDAY CURRENTLY LOOKS DRY AS THE NEXT CANADIAN HIGH SETTLES INTO THE WESTERN GREAT LAKES. ..08.. && .AVIATION... VFR CONDITIONS THROUGH PERIOD WITH PARTLY CLOUDY TO MOSTLY CLEAR SKIES THROUGH PERIOD WITH VSBYS AOA 7 MILES. FAVORABLE CONDITIONS FOR SIGNIFICANT LOW LEVEL WIND SHEAR WITH LOW LEVEL JET OF 45+ KTS INTO EARLY TUESDAY MORNING. ISOLATED SHRA/TSRA POSSIBLE AT CID-MLI- DBQ TERMINALS INTO MID MORNING HOURS MONDAY. ..NICHOLS.. && .DVN WATCHES/WARNINGS/ADVISORIES... IA...NONE. IL...NONE. MO...NONE. && NICHOLS/08
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE QUAD CITIES IA IL 450 AM CDT SUN SEP 5 2010 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-061000- 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- 450 AM CDT SUN SEP 5 2010 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...TODAY AND TONIGHT THERE IS A LOW CHANCE FOR A FEW HIGH BASED THUNDERSTORMS TONIGHT MAINLY WEST OF A CEDAR RAPIDS...TO DUBUQUE LINE. NO SEVERE WEATHER IS EXPECTED THROUGH TONIGHT. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THERE IS A SLIGHT RISK OF SEVERE STORMS MONDAY AFTERNOON AND EVENING AHEAD OF A COLD FRONT THAT WILL SWEEP ACROSS THE AREA. THE MAIN RISK IS FOR AREAS WEST OF THE MISSISSIPPI RIVER...AND FOR DAMAGING WINDS. A LIMITING FACTOR FOR THESE STORMS IS A LACK OF DEEP MOISTURE AND WEAK TO MODERATE INSTABILITY. THERE ARE ADDITIONAL CHANCES FOR THUNDERSTORMS ON TUESDAY...AND AGAIN THURSDAY THROUGH SATURDAY. SEVERE WEATHER IS UNLIKELY TUESDAY. IT IS TOO EARLY TO DETERMINE THE POTENTIAL FOR SEVERE WEATHER LATER IN THE WEEK. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED TODAY AND TONIGHT. HOWEVER... SPOTTER ACTIVATION MAY BE NEEDED LATE MONDAY AFTERNOON AND EVENING IN PORTIONS OF NORTHEAST AND EAST CENTRAL IOWA. 12/LE
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 945 PM CDT SUN SEP 5 2010 IAZ051>054-063>068-ILZ015-016-060330- BENTON-CEDAR-CLINTON-HENRY-IOWA-JACKSON-JOHNSON-JONES-LINN-MUSCATINE- ROCK ISLAND-SCOTT- 945 PM CDT SUN SEP 5 2010 ...THUNDERSTORMS WITH STRONG WIND GUSTS... AT 931 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS ALONG A LINE EXTENDING FROM 6 MILES NORTHEAST OF VAN HORNE TO NICHOLS...MOVING EAST AT 35 MPH. * THUNDERSTORMS WILL BE NEAR... SWISHER...SHUEYVILLE...CEDAR RAPIDS MUNICIPAL AIRPORT AND ATKINS AROUND 940 PM CDT... SHELLSBURG AROUND 945 PM CDT... WEST LIBERTY...SOLON...PALO AND ELY AROUND 950 PM CDT... MUSCATINE AROUND 955 PM CDT... * THERE HAVE BEEN REPORTS OF WIND GUSTS OF 35 TO 45 MPH WITH THESE THUNDERSTORMS AS THEY MOVED INTO EAST CENTRAL IOWA. AT 927 PM THE WIND GUSTED TO 41 MPH AT THE EASTERN IOWA AIRPORT IN CEDAR RAPIDS. THE IOWA CITY AIRPORT ALSO REPORTED A 41 MPH WIND GUST AT 912 PM. * 35 TO 45 MPH WIND GUSTS WILL BE POSSIBLE AS THE STORMS MOVE EAST TO THE MISSISSIPPI RIVER. * ALSO AN ISOLATED STRONG STORM NEAR KEYSTONE IN BENTON COUNTY COULD PRODUCE SOME PEA SIZE HAIL AS IT MOVES EAST INTO LINN COUNTY BY 1015 PM. LAT...LON 4224 9098 4141 9039 4141 9133 4210 9228 TIME...MOT...LOC 0235Z 266DEG 30KT 4208 9199 4145 9130 DLF
The Quad Cities radar (KDVN), 25 km away, was scanning. The volume nearest the first event began at 02:48 UTC.
4 thunderstorm wind. Local standard time, as filed.
Wind gusts estimated to be 65 mph blew a power pole down across a road about 2 miles northwest of Taylor Ridge, IL around 950 pm CDT September 5.
A 69 mph wind gust was measured by the ASOS at the Quad City Airport in Moline, IL at 1007 pm CDT September 5.
Wind gusts estimated to be 65 mph blew a tree down near the Toys R Us store about 1 mile north of the Quad City Airport in Moline, IL around 1014 pm CDT September 5.
Wind gusts estimated to be 70 mph blew down several trees in Coal Valley, IL around 1023 pm CDT September 5.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Illinois in 2010Every state in 2010This day in weather historyWarnings in Illinois, September 2010
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: 258915, 258916, 258919, 258921.