Heavy rain caused minor flooding in central Ziebach County.
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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 UNR wrote it up.
Heavy rain caused minor flooding in central Ziebach County.
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 Rapid City, SD wrote its last area forecast discussion before the first event at Aug 22, 10:13 AM MST, 47 minutes earlier.
AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY NATIONAL WEATHER SERVICE RAPID CITY SD 1113 AM MDT FRI AUG 22 2014 .UPDATE... ISSUED AT 1056 AM MDT FRI AUG 22 2014 LATEST KUDX RADAR SHOWS SHOWERS SLOWLY DISSIPATING OVER PERKINS/ZIEBACH COUNTIES AND QUIET ELSEWHERE. PLENTY OF LOW CLOUDS OVER THE SD PLAINS ARE KEEPING TEMPERATURES COOL. CLOUDS ARE EXPECTED TO LIFT THROUGH THE DAY...BUT PLENTY OF CLOUDINESS WILL REMAIN AS DEEP PACIFIC MOISTURE STREAMS IN. HAVE TWEAKED TEMPS TO ACCOUNT FOR THIS...AND ADJUSTED POPS WITH LATEST INPUT FROM THE HRRR. NO OTHER CHANGES NEEDED AT THIS TIME. UPDATE ISSUED AT 627 AM MDT FRI AUG 22 2014 MOISTURE OVERNIGHT HAS LED TO AREAS OF FOG FROM THE NORTHERN BLACK HILLS AND BEAR LODGE MOUNTAINS INTO NORTHWESTERN SOUTH DAKOTA AND SOUTH CENTRAL SOUTH DAKOTA. THUS UPDATED TO ADD THE FOG. NO OTHER CHANGES WERE MADE. && .SHORT TERM...TODAY THROUGH SATURDAY NIGHT ISSUED AT 242 AM MDT FRI AUG 22 2014 SOUTHWEST FLOW OVER THE AREA WILL CONTINUE TO BRING SEVERAL UPPER LEVEL DISTURBANCES TO THE NORTHERN PLAINS AS AN APPROACHING UPPER LEVEL LOW DEEPENS AND CLOSES OFF OVER THE NORTHERN ROCKIES. AT THE SURFACE...A FRONTAL BOUNDARY EXTENDS FROM LEMMON TO FAITH TOWARDS PINE RIDGE. THIS FRONTAL BOUNDARY WILL REMAIN NEARLY STATIONARY THROUGH THE SHORT TERM...WHICH WILL HELP SUPPORT THE CHANCES FOR SHOWERS AND THUNDERSTORMS. LATEST RADAR IMAGERY CONTINUES TO SHOW SHOWERS AND THUNDERSTORMS ACROSS NORTHWESTERN SOUTH DAKOTA...WHICH ARE ASSOCIATED WITH THE FIRST DISTURBANCE PUSHING THROUGH. FOR TODAY...WILL SEE ADDITIONAL SHOWERS AND THUNDERSTORMS AS THE NEXT IMPULSE CLIPS THE NORTHERN AND WESTERN PORTION OF THE FORECAST AREA THIS MORNING. HAVE LOWERED POPS A LITTLE FROM PREVIOUS FORECAST DUE TO LINGERING SUBSIDENCE BEHIND THE FIRST WAVE. HOWEVER BY THIS AFTERNOON...PACIFIC MOISTURE WILL ADVECT INTO THE AREA...WHICH WILL COMBINE WITH A STRONG JET STREAK...BRINGING WIDESPREAD SHOWERS AND THUNDERSTORMS...SOME WITH HEAVY RAINFALL. OVERALL MODELS CONTINUE TO SHOW A CHANGE IN THE OVERALL PATTERN FOR TODAY THROUGH THE WEEKEND. THE UPPER LEVEL TROUGH NEAR SOUTHERN CALIFORNIA EJECTS NORTHEASTWARD ACROSS THE AREA. THE NAM TRACK IS FURTHER WEST...THUS RAINFALL AMOUNTS IN THE MODEL ARE QUITE A BIT HIGHER THAN THE GFS. ALSO PW AMOUNTS VARY FROM AROUND 150 PERCENT OF AVERAGE IN THE GFS TO OVER 200 PERCENT OF AVERAGE IN THE NAM. DEPENDING ON WHICH SOLUTION VERIFIES...COULD NEED A FLASH FLOOD WATCH FOR TONIGHT INTO SATURDAY...ESPECIALLY FOR THE HILLS AND EASTERN FOOTHILLS WHERE IT HAS BEEN WETTER OVER THE PAST FEW WEEKS. AT THIS TIME DECIDED TO MENTION LOCALLY HEAVY RAIN POSSIBLE AND WILL LET FUTURE SHIFTS FURTHER EVALUATE THE NEED FOR ANY FLOOD HIGHLIGHTS. ON SATURDAY AND SATURDAY NIGHT...LINGERING SHOWERS AND STORMS WILL CONTINUE AS THE MAIN NORTHWEST UPPER TROUGH EJECTS NORTHEASTWARD. BUFKIT MODEL SOUNDINGS INDICATE A DEEP MOISTURE PROFILE UP TO 300 MB WITH MOIST EASTERLY LOW LEVEL FLOW. THIS SHOULD KEEP CHANCES FOR STORMS IN THE FORECAST...ESPECIALLY IN NORTHERN AND WESTERN AREAS CLOSER TO THE UPPER LOW. && .LONG TERM...SUNDAY THROUGH THURSDAY ISSUED AT 242 AM MDT FRI AUG 22 2014 MODELS CONTINUE TO SHOW THE UPPER LOW LIFTING INTO EASTERN MONTANA ON SUNDAY...WITH A DRY SLOT MOVING INTO WESTERN AND CENTRAL SOUTH DAKOTA. THE BEST SUPPORT FOR PRECIPITATION ON SUNDAY WILL BE NORTH OF THE FORECAST AREA. POST FRONTAL STRATUS WILL KEEP TEMPERATURES OVER NORTHEASTERN WYOMING AND FAR NORTHWESTERN SOUTH DAKOTA COOLER THAN AVERAGE FOR THIS TIME OF YEAR. THE UPPER LOW WILL CONTINUE TO LIFT NORTHEASTWARD INTO MANITOBA AND WESTERN ONTARIO ON MONDAY...FOLLOWED BY A SLOW MOVING UPPER TROUGH CROSSING THE NORTHERN PLAINS ON TUESDAY AND WEDNESDAY. COOLER THAN AVERAGE TEMPERATURES WILL CONTINUE THROUGH MID WEEK...ALONG WITH A DAILY CHANCE OF SHOWERS AND THUNDERSTORMS. AN UPPER RIDGE WILL BUILD OVER THE REGION FOR THE END OF THE WEEK...LEADING TO DRY WEATHER AND A RETURN TO WARMER TEMPERATURES. && .AVIATION...(FOR THE 18Z TAFS THROUGH 18Z SATURDAY AFTERNOON) ISSUED AT 1113 AM MDT FRI AUG 22 2014 LCL IFR/SCT MVFR CIGS OVER WRN SD WILL LIFT THROUGH EARLY AFTN WITH BRIEF VFR CONDITIONS. WEATHER WILL THEN DETERIORATE TONIGHT AS A LARGE AREA OF SHRA/TSRA SPREADS ACROSS MUCH OF THE FORECAST AREA. MVFR/IFR CIGS WILL BE COMMON WITH THE PRECIP...AND LATE TNGT WIDESPREAD MVFR/IFR CIGS/VSBYS WITH STRATUS AND SOME FOG WILL OCCUR ACROSS MUCH OF WRN/CNTRL SD...PERSISTING THROUGH THE MRNG. && .UNR WATCHES/WARNINGS/ADVISORIES... SD...NONE. WY...NONE. && UPDATE...13 SHORT TERM...MLS LONG TERM...10 AVIATION...BUNKERS
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RAPID CITY SD 430 AM MDT FRI AUG 22 2014 SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058- 071-231300- BENNETT-BUTTE-CENTRAL BLACK HILLS-CUSTER CO PLAINS-FALL RIVER-HAAKON- HARDING-HERMOSA FOOT HILLS-JACKSON-MELLETTE-NORTHEASTERN CROOK- NORTHERN BLACK HILLS-NORTHERN CAMPBELL-NORTHERN FOOT HILLS- NORTHERN MEADE CO PLAINS-PENNINGTON CO PLAINS-PERKINS-RAPID CITY- SHANNON-SOUTHERN BLACK HILLS-SOUTHERN CAMPBELL-SOUTHERN FOOT HILLS- SOUTHERN MEADE CO PLAINS-STURGIS/PIEDMONT FOOT HILLS-TODD-TRIPP- WESTERN CROOK-WESTON-WYOMING BLACK HILLS-ZIEBACH- 430 AM MDT (530 AM CDT) FRI AUG 22 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN SOUTH DAKOTA AND NORTHEASTERN WYOMING. .DAY ONE...TODAY AND TONIGHT SCATTERED THUNDERSTORMS ARE POSSIBLE THROUGH THE DAY WITH NUMEROUS SHOWERS AND THUNDERSTORMS TONIGHT. WIDESPREAD SEVERE WEATHER IS NOT ANTICIPATED...BUT LOCALLY HEAVY RAINFALL IS POSSIBLE WITH STRONGER STORMS TONIGHT. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY CHANCES FOR SHOWERS AND THUNDERSTORMS WILL CONTINUE ACROSS THE AREA THROUGH THE WEEK. WIDESPREAD SEVERE WEATHER IS NOT ANTICIPATED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY. && STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES... OR CHECK OUR WEB SITE AT WEATHER.GOV/RAPIDCITY
The Rapid City radar (KUDX), 142 km away, was scanning. The volume nearest the first event began at 18:01 UTC.
1 heavy rain, 1 flash flood. Local standard time, as filed.
A daily rainfall record of 5.12 inches was set at Dupree, breaking the previous record of 4.86 inches measured on June 17, 201. The period of record for this station is 1922 through 2014.
Four to six inches of rain fell in less than 12 hours over central Ziebach County. Rainfall reports included 5.6 inches seven miles south of Dupree and 4.17 inches 15 miles south-southeast of Dupree. Small creeks and rural roads were south of Dupree were flooded.
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, August 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: 538166, 538165.