Heavy rain caused minor flooding of the Ocheyedan and Little Sioux Rivers from June 6th to June 18th. Lowlands along the river were affected, including some farmland.
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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.
Heavy rain caused minor flooding of the Ocheyedan and Little Sioux Rivers from June 6th to June 18th. Lowlands along the river were affected, including some farmland.
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 Jun 6, 5:14 AM CST, 46 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SIOUX FALLS SD 614 AM CDT THU JUN 6 2013 .SHORT TERM...(TODAY AND TONIGHT) ISSUED AT 346 AM CDT THU JUN 6 2013 UPPER LEVEL LOW PRESSURE STILL MEANDERING AROUND THE REGION BUT SHOULD MAKE A MOVE EAST THROUGH THE DAY. HOWEVER...INFLUENCE OF THIS LOW WILL BE FELT WITH ANOTHER DAY OF CLOUD COVER AND ALSO SOME SPOTTY LIGHT SHOWERS. LOWERED HIGHS EAST OF THE JAMES RIVER TODAY AS AN AREA OF LOWER STRATUS IS EXPECTED TO WORK SOUTHWEST FROM MINNESOTA INTO THE AREA. THIS WILL REALLY HAMPER ANY WARMING OVER SOUTHWEST MINNESOTA. FARTHER WEST THE LOWER CLOUDS MAY NOT QUITE REACH BUT SOUNDINGS INDICATE ANY CLEAR AREAS QUICKLY SEEING REDEVELOPMENT OF CUMULUS CLOUD COVER. SHALLOW INSTABILITY ALSO POINTS TOWARDS AN ISOLATED THREAT FOR SHOWERS. EXPECT HIGHS MAINLY IN THE 60S...LIKELY THE LOWER 60S IN SOUTHWEST MINNESOTA. BY TONIGHT MUCH OF THE CLOUD COVER WILL SHIFT EAST BUT STILL ANTICIPATE LINGERING CUMULUS CLOUDS ON THE BACKSIDE OF THE LOW PRESSURE. WINDS WILL DROP OFF OVERNIGHT SO LOCATIONS THAT CAN BREAK OUT OF THE CLOUDS WILL GET A BIT CHILLY. WILL LOWER LOWS AND AIM FOR MID TO UPPER 40S. .LONG TERM...(FRIDAY THROUGH WEDNESDAY) ISSUED AT 346 AM CDT THU JUN 6 2013 FORECAST AREA SITS UNDER NORTHWEST FLOW ALOFT FRIDAY WITH BUILDING RIDGE ACROSS THE SOUTHWEST CONUS AND SHORT WAVE DROPPING SOUTHEAST ACROSS NORTHERN MINNESOTA. SHOULD FINALLY SEE SUNSHINE AND WARMER TEMPERATURES FOR FRIDAY WITH DRIER AIRMASS IN PLACE. LOW LEVEL JET DEVELOPS FRIDAY NIGHT ACROSS THE EASTERN DAKOTAS/EASTERN NEBRASKA...WHICH MAY PROVIDE JUST ENOUGH MOISTURE AND RESULTANT INSTABILITY TO SUSTAIN ELEVATED CONVECTION PROGRESSING SOUTHEAST FROM ANY THAT INITIATES ACROSS THE HIGH PLAINS FRIDAY AFTERNOON. MUCAPES REMAIN VERY MEAGER HOWEVER SO ANY ACTIVITY WOULD NOT BE SEVERE AND LIKELY BE DECAYING AS IT MOVES ACROSS OVERNIGHT. BETTER MOISTURE RETURN SETS UP FOR SATURDAY...AND MODELS NOW BRINGING A DEEPENING UPPER LOW FARTHER SOUTH ACROSS THE NORTHERN PLAINS THROUGH SATURDAY NIGHT. INSTABILITY NOT AS IMPRESSIVE AS FORMER MODEL RUNS BUT MUCAPES WEST OF THE JAMES RIVER VALLEY DO REACH THE 1500-1800 J/KG RANGE BY 18Z SATURDAY. SHOULD SEE DEVELOPMENT ALONG MAIN TROUGH LINE ACROSS SOUTH CENTRAL/SOUTHEAST SOUTH DAKOTA BY EARLY AFTERNOON SATURDAY. THE CAP DOES NOT LOOK TO HOLD AS LONG WITH SUCH A STRONG LOW PUSHING THROUGH ON SATURDAY...AND EXPECT NUMEROUS THUNDERSTORMS TO PUSH SOUTHEAST ACCORDINGLY. SEVERE THREAT WILL BE ACROSS SOUTH CENTRAL SODAK...THEN MAINLY FOLLOWING THE MO RIVER TO JAMES RIVER CORRIDOR SOUTHEAST THROUGH THE EVENING INTO NW IA. STRONG WINDS IN THE LOW LEVELS WILL MAKE DAMAGING WIND GUSTS ONE OF THE BIGGEST THREATS ALONG WITH LARGE HAIL INITIALLY. PROGRESSION OF THE LOW REMAINS UNCERTAIN AS DEGREE OF DEVELOPMENT DIFFERS TEMPORALLY AND SPATIALLY THROUGH SATURDAY NIGHT. THE ECMWF 00Z SOLUTION WOULD KEEP HEAVY RAIN CHANCES ACROSS THE NW IA FORECAST AREA THROUGH SUNDAY MORNING...WHILE THE GFS PUSHES THE LOW FARTHER EAST. WILL NEED TO MONITOR TRENDS AS HEAVY RAIN AGAIN IN NW IA WOULD LIKELY CAUSE SOME FLOODING. CURRENTLY THINKING IS THAT LOW WILL PROGRESS EAST OF THE AREA AS UPPER RIDGE CONTINUES TO BUILD AND PUSH EAST ACROSS THE WESTERN CONUS. UPPER RIDGE GAINS CONTROL FOR EARLY NEXT WEEK ACROSS THE CENTRAL CONUS AND EXPECTING A MODERATE WARMING TREND. LONG RANGE MODELS KEYING IN ON ONE STRONGER RIDGE RIDER SHORT WAVE THAT COULD POTENTIALLY BRING A ROUND OF STRONG STORMS TO THE AREA TUESDAY NIGHT AND WEDNESDAY. OTHERWISE...SIGNALS LOOK TOO WEAK AND SPORADIC TO INCLUDE CHANCE OR HIGHER POPS AT THIS TIME. && .AVIATION...(FOR THE 12Z TAFS THROUGH 12Z FRIDAY MORNING) ISSUED AT 612 AM CDT THU JUN 6 2013 IFR TO LOW END MVFR CEILINGS WILL WRAP SOUTHWARD TODAY...WITH THE HIGHEST PROBABILITY OF OCCURRENCE BEFORE 18Z. CEILINGS WILL GRADUALLY RISE THROUGH THE AFTERNOON AS LOW PRESSURE SHIFTS EAST. AFTER ABOUT 0Z CLOUDS ARE EXPECTED TO BECOME SCATTERED WITH VFR CONDITIONS THROUGH 12Z FRIDAY. && .FSD WATCHES/WARNINGS/ADVISORIES... SD...NONE. MN...NONE. IA...NONE. NE...NONE. && SHORT TERM...08 LONG TERM... AVIATION...08
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SIOUX FALLS SD 431 AM CDT THU JUN 06 2013 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- 431 AM CDT THU JUN 06 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH DAKOTA... SOUTHWEST MINNESOTA...NORTHWEST IOWA...AND NORTHEAST NEBRASKA. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THUNDERSTORMS ARE EXPECTED TO DEVELOP DURING THE DAY ON SATURDAY AS A COLD FRONT MOVES NORTHWEST TO SOUTHEAST THROUGH THE AREA. THERE IS A SLIGHT RISK THAT THESE STORMS WILL BE SEVERE IN THE AFTERNOON AND EVENING...MAINLY SOUTH OF A LINE FROM HURON TO SIOUX FALLS SOUTH DAKOTA...TO STORM LAKE IOWA. ANY SEVERE STORMS THAT DO DEVELOP WILL BE CAPABLE OF PRODUCING HAIL TO THE SIZE OF HALF DOLLARS AND WIND GUSTS IN EXCESS OF 60 MPH. IN ADDITION...THESE STORMS WILL BE CAPABLE OF PRODUCING LOCALLY HEAVY RAIN ACROSS TRI-STATE REGION. THERE IS A CHANCE OF STRONG THUNDERSTORMS ACROSS THE AREA AGAIN ON TUESDAY NIGHT AND WEDNESDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT. && FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT WWW.WEATHER.GOV/SIOUXFALLS. THIS INCLUDES THE GRAPHICAL HAZARDOUS WEATHER OUTLOOK.
The national radar mosaic for the moment the first event began.
3 flood. Local standard time, as filed.
Heavy rain caused occasional minor lowland flooding of the Little Sioux River. The river crested at 0.47 feet above flood stage at Linn Grove on June 13th.
Heavy rain caused minor lowland flooding along the Ocheyedan River. The river crested at 1.02 feet above flood stage near Spencer on June 10th.
Heavy rain caused minor farmland and other lowland flooding along the Little Sioux River. The river crested at 1.7 feet above flood stage at Spencer on June 10th.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Iowa in 2013Every state in 2013This day in weather historyWarnings in Iowa, June 2013
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: 455695, 455692, 455693.