1 flash flood, as filed by the National Weather Service.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. 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 Sioux Falls, SD wrote its last area forecast discussion before the first event at Jul 11, 9:00 AM CST, 0 minutes earlier.
AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA NATIONAL WEATHER SERVICE SIOUX FALLS SD 1000 AM CDT SUN JUL 11 2004 .DISCUSSION... PREV FCST IN GOOD SHAPE THRU THIS EVNG. UPR LVL RDG WL BUILD IN BEHIND EXITING SHRTWV. SFC HIGH TO REMAIN OVR AREA AS LOW PRES MOVS OUT OF NRN RCKYS INTO WRN DKTAS THIS AFTN AND EVNG. HIGH TEMPS THIS AFTN WL REACH THE LOWER 90S WEST AND THE LOWER TO MID 80S IN RAIN COOLED AIR EAST. DWPTS IN THE UPR 60S TO LWR 70S WL PUT HEAT INDEX VALUES IN THE 90-100 RANGE...WITH LIGHT SE WNDS...SO THIS AFTN SHUD JUST BE A GOOD OLD MSTLY SNY...HOT...AND HUMID MID JULY DAY. && .FSD...WATCHES/WARNINGS/ADVISORIES... SD...NONE. MN...NONE. IA...NONE. NE...NONE. && MG
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SIOUX FALLS SD 513 AM CDT SUN JUL 11 2004 SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098- IAZ001>003-012>014-020>022-031-032-NEZ013-014-121200- 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- 513 AM CDT SUN JUL 11 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH DAKOTA... SOUTHWEST MINNESOTA...NORTHWEST IOWA...AND NORTHEAST NEBRASKA. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS... NUMEROUS SHOWERS AND THUNDERSTORMS WILL BE MOVING THROUGH FAR EAST CENTRAL SOUTH DAKOTA AND SOUTHWEST MINNESOTA...ENDING BY MID MORNING. FROM NEAR I 90 AND POINTS SOUTHWARD...SCATTERED SHOWERS AND THUNDERSTORMS CAN BE EXPECTED ALSO THROUGH ABOUT MID MORNING. THESE STORMS ARE NOT SEVERE...BUT ARE PRODUCING A LOT OF CLOUD TO GROUND LIGHTNING. THE RAINFALL HAS ENDED ALONG AND WEST OF A YANKTON TO DE SMET SOUTH DAKOTA LINE. FLOODING... HEAVY RAINFALL WILL BE FOUND IN A LINE FROM COTTONWOOD COUNTY MINNESOTA...EASTWARD INTO LAKE COUNTY SOUTH DAKOTA. THIS LINE OF STORMS IS PRODUCING RAINFALL AMOUNTS OF OVER AN INCH PER HOUR IN MANY LOCATIONS. THE HEAVY RAINFALL WILL END AT ALL LOCATIONS IN THE EARLY TO MID MORNING HOURS...ENDING ANY FLASH FLOOD THREAT. SCATTERED POCKETS OF HEAVY RAINFALL COULD ALSO OCCUR EARLY THIS MORNING OVER NORTHWEST IOWA. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY A SLIGHT RISK OF THUNDERSTORMS IS POSSIBLE ACROSS THE AREA ON MONDAY AND MONDAY NIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT. && FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT WWW.CRH.NOAA.GOV/FSD. THIS INCLUDES THE GRAPHICAL HAZARDOUS WEATHER OUTLOOK.
The Sioux Falls radar (KFSD), 127 km away, was scanning. The volume nearest the first event began at 15:01 UTC.
1 flash flood. Local standard time, as filed.
Up to 6 inches of rain on saturated ground caused flooding of roads, farmland, other low areas, and basements. A golf course in Lakefield was flooded. Other towns affected included Okabena and Bergen.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Minnesota in 2004Every state in 2004This day in weather historyWarnings in Minnesota, July 2004
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: 5416100.