A thunderstorm produced damaging winds and large hail in Cherokee County during the predawn hours of July 7th.
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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 FSD wrote it up.
A thunderstorm produced damaging winds and large hail in Cherokee County during the predawn hours of July 7th.
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 Sioux Falls, SD wrote its last area forecast discussion before the first event at Jul 7, 2:50 AM CST, 1 hour earlier.
AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA NATIONAL WEATHER SERVICE SIOUX FALLS SD 350 AM CDT MON JUL 7 2008 .DISCUSSION... INIT SHOT OF SHWRS/TSTMS SERN PART OF FCST AREA SHUD PUSH ON NEWD THRU MID MRNG AND TARGET MAINLY THE NRN HALF OF OUR NWRN IA FCST AREA. AS THIS PUSHES ON OUT TAMER CONVECTN MOVG INTO THE SWRN PART OF FCST AREA CURNTLY SHUD BREAK UP PARTLY AS SCT ACTVTY BEGINS TO MVE INTO/DVLP FRTHR N. THIS SHUD LEAD TO A PD OF MORE GNRL SCT SHWRS/TSTMS TILL NEXT MORE CONCENTRATED DVLPMNT SERN PART OF FCST AREA DURG THIS AFTN. THESE WILL BE THE STORMS THAT CUD PRODUCE HVY RAIN OVER NWRN IA...NEAR ANS SE OF A SUX/SPW LINE. WILL MEMTN HVY RAIN PSBL FOR NOW BUT HOLD OFF ON FLASH FLOOD WATCH AS PER DISCUSSN WITH NEIGHBORS. WE WILL HAVE TO EXAMINE INCOMNG MRNG GUIDNCE AND DATA TO GUAGE POTENTL FOR VRY HVY AMNT POTENTL...THAT IS 2-3 INCHES OVER MORE THAN ISOLD AREA. WHILE I FEEL GUIDNCE QPF AT LEAST A LTL UNDERDONE...FELL ALSO AREA OF BEST RAINFLAL POTENTL A LTL UNCERTAIN AS TO WHETHER IT WILL BE EXTREME SERN CRNR OF FCST AREA OR A LTL FRTHR NWWD INTO NWRN IA. SHWRS AND TSTMS SHUD END FROM THE NW TNGT AS UPPER SUPPORT MOVES ON EWD AND WEAK SUBSDNCE TALES OVER WITH SOME DRYING. TUE THRU FRI PD WILL BE KEPT DRY FOR NOW AS MILD PATTRN IS QUICKLY REPLACED BY WARMNG AS UPPER RDG BUILD INTO AREA. CHC SHWRS/TSTMS WITH WEEKEND SYS SAT NGT/SUN WILL BE KEPT AS IS. BEFORE THEN BEST CHC SEEMS TO BE A POTENTL FOR A LTL WAA CONVECTN TUE NGT/ERY WED AS FVRBL PATTRN DVLPS QUICKLY AS UPPR RDGNG BEGINS. AFTER WED MRNG THIS PATTRN SHIFTS N OF AREA...MID LVLS WARM...AND ANY CHC OF TSTMS DVLPNG SEEMS TO WANE FOR A FEW DAYS. && .AVIATION... GNLY VFR OUTSIDE OF CONVECTN. TSTMS WILL PRODUCE MVFR AND EVEN IFR CONDS BUT THESE SHUD BE QUITE BRF AND LCL. && .FSD WATCHES/WARNINGS/ADVISORIES... SD...NONE. MN...NONE. IA...NONE. NE...NONE. && WILLIAMS
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SIOUX FALLS SD 1045 AM CDT SUN JUL 06 2008 SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098- IAZ001>003-012>014-020>022-031-032-NEZ013-014-071200- AURORA-BEADLE-BON HOMME-BROOKINGS-BRULE-BUENA VISTA IA- CHARLES MIX-CHEROKEE IA-CLAY-CLAY IA-COTTONWOOD MN-DAKOTA NE- DAVISON-DICKINSON IA-DIXON NE-DOUGLAS-GREGORY-HANSON-HUTCHINSON- IDA IA-JACKSON MN-JERAULD-KINGSBURY-LAKE-LINCOLN-LINCOLN MN- LYON IA-LYON MN-MCCOOK-MINER-MINNEHAHA-MOODY-MURRAY MN-NOBLES MN- OBRIEN IA-OSCEOLA IA-PIPESTONE MN-PLYMOUTH IA-ROCK MN-SANBORN- SIOUX IA-TURNER-UNION-WOODBURY IA-YANKTON- 1045 AM CDT SUN JUL 06 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH DAKOTA... SOUTHWEST MINNESOTA...NORTHWEST IOWA...AND NORTHEAST NEBRASKA. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS... SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON AND CONTINUE THIS EVENING. THE BEST CHANCE FOR THUNDERSTORMS WILL BE ALONG AND AHEAD OF A WEAK COLD FRONT IN PORTIONS OF NORTHEAST NEBRASKA AND NORTHWEST IOWA. SOME OF THESE STORMS MAY BE SEVERE WITH HAIL TO PENNY SIZE AND WIND GUSTS TO 60 MPH. HOWEVER...MOST OF THE STORMS WILL STAY BELOW THE SEVERE THRESHOLD. ANOTHER ROUND OF STORMS IS POSSIBLE LATE TONIGHT ALONG THE CENTRAL MISSOURI RIVER VALLEY AS AN UPPER LEVEL STORM SYSTEM MOVES IN FROM THE WEST. THESE STORMS ARE NOT EXPECTED TO BE SEVERE. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY SCATTERED THUNDERSTORMS ARE EXPECTED OVER THE AREA MONDAY AND MONDAY NIGHT. A FEW OF THESE STORMS COULD BE SEVERE. THE BEST CHANCE FOR SEVERE STORMS WILL BE OVER SOUTHEAST SOUTH DAKOTA...SOUTHWEST MINNESOTA...AND NORTHWEST IOWA. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL BE POSSIBLE AFTER 2 PM CDT IN PORTIONS OF NORTHEAST NEBRASKA AND NORTHWEST IOWA. && FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT WWW.WEATHER.GOV/SIOUXFALLS. THIS INCLUDES THE GRAPHICAL HAZARDOUS WEATHER OUTLOOK.
The Sioux Falls radar (KFSD), 130 km away, was scanning. The volume nearest the first event began at 09:48 UTC.
1 hail, 1 thunderstorm wind. Local standard time, as filed.
Large hail, accompanied by damaging winds, damaged crops. The amount of crop damage was not known.
Thunderstorm winds, accompanied by large hail, damaged trees and crops. The amount of crop damage was not known.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Iowa in 2008Every state in 2008This day in weather historyWarnings in Iowa, July 2008
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: 123373, 123374.