Thunderstorms training over the same region brought very heavy rains which resulted in flash flooding.
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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 ABR wrote it up.
Thunderstorms training over the same region brought very heavy rains which resulted in flash flooding.
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 Aberdeen, SD wrote its last area forecast discussion before the first event at Jun 26, 11:43 AM CST, 12 minutes earlier.
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE ABERDEEN SD 1243 PM CDT THU JUN 26 2014 .UPDATE... SEE UPDATED AVIATION DISCUSSION BELOW. COUPLE OF AREAS TO FOCUS ON STILL THIS MORNING...WITH THE REMNANTS OF LAST NIGHTS CONVECTION STALLED OVER SOUTHEAST COUNTIES PRODUCING SEVERAL INCHES OF RAIN ALREADY. FARTHER WEST...AN MCV OVER THE MO VALLEY IS SUPPORTING ADDITIONAL ELEVATED WEAK STORMS. FOR THE REST OF TODAY...WARMING MID LEVEL TEMPERATURES WILL LIKELY HELP CAP THE ATMOSPHERE OVER THE MO VALLEY...WHILE CONVECTIVE REDEVELOPMENT IS POSSIBLE OVER THE EAST AS WARMING MID LEVEL TEMPERATURES WILL NOT DOMINATE THAT AREA TILL THIS EVENING. STORMS IN EASTERN SOUTH DAKOTA WILL BE OF THE PULSE VARIETY THANKS TO A MEAGER SHEAR ENVIRONMENT...THOUGH THE SPECTER OF FLOODING REMAINS THANKS TO SATURATED SOILS. SEVERE STORMS ARE STILL EXPECTED TO WORK INTO THE WESTERN CWA THIS EVENING BEFORE DISSIPATING...SO THAT PART OF THE FORECAST IS UNCHANGED. AS FOR THE POTENTIAL FOR STORMS OVERNIGHT...12Z MODELS FAIL TO INDICATE ANY FORM OF MCS CONTINUING EAST WITH LOSS OF DAYTIME HEATING DESPITE THE DEVELOPMENT OF A LOW LEVEL JET AND STEEP LAPSE RATES ALOFT THANKS TO H7 WARM AIR ADVECTION. WILL NEED TO REEVALUATE OVERNIGHT POPS WITH THE AFTERNOON PACKAGE. && .PREVIOUS DISCUSSION... .SHORT TERM...TODAY THROUGH SATURDAY BROKEN LINE OF SHOWERS AND THUNDERSTORMS CONTINUES TO MARCH EAST ACROSS THE CWA AND IS CURRENTLY MAKING ITS WAY THROUGH THE JAMES RIVER VALLEY. MCV NOTED ON RADAR EAST OF PIERRE WITH PRECIP ASSOCIATED WITH THAT WANING. IN FACT...AS ENTIRE COMPLEX MOVES EAST...CONTINUE TO SEE WEAKENING/DISSIPATION IN ACTIVITY. UNFORTUNATELY...LOW CONFIDENCE FORECAST THIS GO AROUND AS MODELS NOT OFFERING UP MUCH HELP IN CONVECTIVE TRENDS THROUGH THE PERIOD. HI RES MODELS HAVING A HARD TIME PICKING UP ON CURRENT ACTIVITY...AND THEY ALSO VARY IN PLACEMENT OF ADDITIONAL DEVELOPMENT THIS AFTERNOON AND EVENING. CURRENT THINKING IS THAT THIS EARLY MORNING ACTIVITY WILL CONTINUE MOVING EAST AND DISSIPATING OVER THE NEXT FEW HOURS. CWA WILL THEN LIKELY SEE A LULL IN THE ACTION FOR A GOOD PART OF THE DAY. THINGS GET MORE QUESTIONABLE IN THE AFTERNOON. SOME MODELS SHOWING SCT STORMS DEVELOPING THIS AFTERNOON OVER THE EASTERN CWA WITHIN WARM AIR ADVECTION REGIME AND LOW LEVEL JET ENERGY. OTHER MODELS NOT BUYING THIS AND HOLD THINGS OFF UNTIL THE BETTER UPPER LEVEL SHORTWAVE ENERGY MOVES ACROSS LATER IN THE AFTERNOON/OVERNIGHT...WITH ACTIVITY SPREADING FROM WEST TO EAST ACROSS THE DAKOTAS. NEVERTHELESS...SVR PARAMETERS ARE BEST OVER THE WESTERN CWA THIS AFTERNOON AND EVENING. FRIDAY LOOKING GOOD FOR SVR POTENTIAL AS WELL...ALTHOUGH INTERESTING TO NOTE DEEP LAYER SHEAR IS NEVER OVERLY IMPRESSIVE THROUGH THE PERIOD. PLENTY OF MOISTURE TO WORK WITH OVER THE NEXT FEW DAYS...AND GIVEN THE OVERALL SLOW STORM MOTION AT TIMES...COULD BE DEALING WITH HEAVY RAIN AND POTENTIALLY SOME FLASH FLOODING ISSUES OVER THE NEXT COUPLE DAYS. OPTED NOT TO ISSUE A FLASH FLOOD WATCH AT THIS TIME DUE TO THE LOW CONFIDENCE IN TIMING AND PLACEMENT OF CONVECTIVE SYSTEMS OVER THE NEXT COUPLE DAYS. WOULD HAVE TO BE A CWA-WIDE WATCH FOR TWO OR THREE DAYS AND NOT SURE THATS THE BEST ROUTE TO GO AT THIS TIME. WILL LET DAY SHIFT TAKE A FINAL LOOK AT 12Z MODELS AND MAKE DECISION ON ANY FLOOD PRODUCTS IF NEEDED. .LONG TERM...SATURDAY NIGHT THROUGH WEDNESDAY THE MODELS ALL SHOW THE LAST IN THE UPPER LOW PRESSURE TROUGHS/SHORT WAVES KICKING EAST OF OUR REGION SATURDAY NIGHT INTO SUNDAY. THE MODELS THEN SHOW AN UPPER LEVEL LOW PRESSURE AREA CLOSING OFF AND INTENSIFYING IN SOUTHERN CANADA THROUGH SUNDAY NIGHT. THIS UPPER LOW PRESSURE AREA THEN MOVES SLOWLY EASTWARD THROUGH WEDNESDAY. STILL HAVE IN CHANCES OF STORMS INTO SUNDAY NIGHT WITH THE LAST UPPER LEVEL TROUGH TO MOVE THROUGH AND MAY HAVE TO CUT THESE BACK IN THE NEXT FORECAST AS IT LOOKS LIKE MORE DRIER AIR MOVES IN. SUNDAY SHOULD ALSO BE THE LAST NEAR TO ABOVE NORMAL TEMPERATURE DAY. LIKE THE COOLER EC MODEL AND GUIDANCE NUMBERS FOR MONDAY THROUGH WEDNESDAY AS CANADIAN AIR ADVECTS INTO THE REGION BEHIND THE INTENSE SURFACE LOW PRESSURE AREA IN CANADA. COULD ONLY HAVE LOWER TO MID 70S IN THE EASTERN CWA FOR TUESDAY AND WEDNESDAY. MAY HAVE TO LOWER THE HIGHS IN THE NEXT FORECAST. OTHERWISE...HAVE IT DRY FROM MONDAY THROUGH WEDNESDAY ACROSS THE CWA. THE OTHER ISSUE COULD BE SOME BREEZY/WINDY CONDITIONS IN THE MONDAY THROUGH WEDNESDAY TIME FRAME AS THE SURFACE LOW PRESSURE AREA IN CANADA MOVES EAST AND WEAKENS. && .AVIATION... 18Z TAFS FOR THE KABR...KATY...KPIR AND KMBG TERMINALS PRIMARILY VFR CONDITIONS ARE EXPECTED AT ALL TAF LOCATIONS THROUGH THIS EVENING. STORMS WILL KEEP GENERATING ALONG THE MOISTURE TONGUE IN EASTERN SD THIS AFTERNOON SO LEFT VCTS IN KATY. A LLJ TONIGHT WILL HELP START UP CONVECTION AGAIN. KEPT THE VCTS IN KMBG BUT LEFT MENTION OUT AT OTHER SITES DUE TO LOW CONFIDENCE IN TIMING. SOME MVFR STRATUS WILL MOVE IN EITHER LATE TONIGHT OR EARLY FRIDAY MORNING. VSBY MAY FALL TO MVFR/IFR IN ANY HEAVIER STORMS. && .ABR WATCHES/WARNINGS/ADVISORIES... SD...NONE. MN...NONE. && UPDATE...WISE SHORT TERM...CONNELLY LONG TERM...MOHR AVIATION...WISE WEATHER.GOV/ABERDEEN
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE ABERDEEN SD 448 AM CDT THU JUN 26 2014 MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-271000- TRAVERSE-BIG STONE-CORSON-CAMPBELL-MCPHERSON-BROWN-MARSHALL- ROBERTS-WALWORTH-EDMUNDS-DAY-DEWEY-POTTER-FAULK-SPINK-CLARK- CODINGTON-GRANT-HAMLIN-DEUEL-STANLEY-SULLY-HUGHES-HYDE-HAND-JONES- LYMAN-BUFFALO- 448 AM CDT THU JUN 26 2014 /348 AM MDT THU JUN 26 2014/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL MINNESOTA...CENTRAL SOUTH DAKOTA...NORTH CENTRAL SOUTH DAKOTA AND NORTHEAST SOUTH DAKOTA. .DAY ONE...TODAY AND TONIGHT THREAT FOR SEVERE STORMS LATE THIS AFTERNOON AND EVENING ACROSS CENTRAL SOUTH DAKOTA. LARGE HAIL AND STRONG WINDS POSSIBLE. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY SEVERAL CHANCES FOR THUNDERSTORMS EARLY ON IN THE PERIOD. BEST CHANCE FOR SEVERE STORMS FRIDAY AND FRIDAY NIGHT...WITH LARGE HAIL AND STRONG WINDS POSSIBLE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED TODAY OR TONIGHT. TMT
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
1255 PM CDT THU JUN 26 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1252 PM HEAVY RAIN 4 ENE HAYTI 44.68N 97.13W
06/26/2014 M2.80 INCH HAMLIN SD EMERGENCY MNGR
&&
EVENT NUMBER ABR1400543
WISEThe Sioux Falls radar (KFSD), 128 km away, was scanning. The volume nearest the first event began at 17:53 UTC.
2 flash flood. Local standard time, as filed.
Heavy rains of up to 4 inches caused the flooding of a few roads south of Castlewood.
Portions of county road 463 were underwater from flash flooding.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Dakota in 2014Every state in 2014This day in weather historyWarnings in South Dakota, June 2014
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: 529831, 529834.