Warm temperatures caused rapid snowmelt and ice break-up along area rivers. Backwater from ice jams caused minor flooding on the Little Missouri, Moreau, and White Rivers in northwest and south central South Dakota.
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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.
Warm temperatures caused rapid snowmelt and ice break-up along area rivers. Backwater from ice jams caused minor flooding on the Little Missouri, Moreau, and White Rivers in northwest and south central South Dakota.
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 Mar 10, 2:01 PM MST, 29 minutes earlier.
AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY
NATIONAL WEATHER SERVICE RAPID CITY SD
301 PM MDT MON MAR 10 2014
.SHORT TERM...THIS EVENING THROUGH TUESDAY NIGHT
ISSUED AT 235 PM MDT MON MAR 10 2014
NW CONUS UPPER TROUGH ADVANCING EAST WITH PAC MOISTURE
ADVECTING OVER THE REGION AHEAD OF THIS FEATURE. THIS UPPER TROUGH
WILL SPLIT OVER THE CENTRAL ROCKIES WITH THE NORTHERN VORT LOBE
ADVANCING ACROSS THE FA TONIGHT AND SUPPORTING RAIN AND SNOW.
IMPRESSIVE COMPACT SHORTWAVE TROUGH EXPECTED INTO THE AREA
TONIGHT...WITH STEEP MID LAPSE RATES AND STRONG MOISTURE CONVERGENCE
AND LIFT. PREVIOUS FORECAST PRETTY MUCH ON TRACK WITH THE BIGGEST
ISSUE PER THIS SYSTEM BEING THE TIMING OF WHEN PRECIP WILL SWITCH TO
SNOW. A PERIOD OF COMBINED STRONG LSA AND LL CONVERGENCE IS EXPECTED
SUPPORTING A PERIOD OF DECENT SNOW ACCUMS...ESP IN THE NORTHERN
BLACK HILLS. NORTHERN STREAM UPPER TROUGH WILL DROP SE EAST OF THE
FA SUPPORTING A SECONDARY COLD FRONT INTO THE REGION TUES AFTERNOON.
THIS SYSTEM WILL ALSO BRING GUSTY NW WINDS TO THE SD PLAINS.
TONIGHT...PRIMARY SFC COLD FRONT CONTINUES TO SAG SOUTH IN THE
REGION. HELPING TO ESTABLISHED AN ELEVATED FGEN LAYER ACROSS THE
NORTHERN ZONES AS THE PAC NW COMPACT IMPULSE ADVANCES TOWARD THE
REGION. INCREASING LSA WITH ONGOING MOISTURE ADV ALOFT COUPLED WITH
INCREASED FGEN FORCING WILL LEAD TO EXPANSION OF THE THE RAIN BAND
ACROSS MT INTO NW SD BY EVENING. COLUMNS WILL COOL THROUGH THE
EVENING WITH THE FGEN BAND SLOWLY DRIFTING SOUTH THROUGH THE NIGHT.
DECENT UPGLIDE SIGNAL NOTED IN ISENTROPIC CHARTS WITH 30 KNOTS OF
CROSS ISOBARIC FLOW INDICATED. KEY TO THE SETUP WILL BE STEEP MID
LEVEL LAPSE RATES WITH 7C/KM PROGGED IN THE NAM...STARTING AT THE
BASE OF THE FRONTAL INVERISON AND EXTENDING THROUGH THE DGZ. 50 MB
DEEP DGZ NOTED IN FORECAST MODELS WHICH SHOULD SUPPORT MODERATE
SNOWFALL RATES FOR A PERIOD OF TIME...ESP IN THE 09-12Z PERIOD
ACROSS THE NORTHERN HILLS...GIVEN PW VALUES IN THE 0.6-0.7 INCH
RANGE. TIMING OF PRECIP SWITCH OVER IS AND REMAINS DIFFICULT WITH A
SLIGHTLY EARLY SWITCH OVER FORECAST GIVEN CONCERNS ON STRONG DYNAMIC
LIFT/COOLING. NE PORTIONS OF THE BH AROUND THE LEAD/DEADWOOD AREA
WILL BE IN A PRIME LOCATION FOR UPSLOPE ENHANCEMENT GIVEN DEEP NE
FLOW EVENTUALLY EXTENDING INTO THE DGZ BY EARLY MORNING WITH COLUMN
COOLING. THIS COUPLED WITH EARLIER SWITCH OVER /PER ELEVATION/IS
EXPECTED TO SUPPORT WARNING SNOWS THERE...EXTENDING NW INTO THE BEAR
LODGE MOUNTAINS. WILL UPGRADE TO A WARNING THERE. DECIDED TO ISSUE
AN WW ADV OVER NE WY INTO THE SD PLAINS FOR 2-4 INCHES OF SNOW
WHERE AN FGEN BAND WILL SUPPORT A PERIOD OF MODERATE SNOWFALL
RATES.. WILL ALSO ISSUE A WW ADV FOR 2-4 INCHES ACROSS THE CENTRAL
BLACK HILLS WHERE ELEVATION WILL WILL ALLOW HIGHER SNOW TOTALS.
GUSTY NORTHERLY WINDS ARE ALSO EXPECTED ON THE WY PLAINS GIVEN A
SHARP PRESSURE RISE SIGNAL EARLY TUE MORNING. THIS MAY LEAD TO SOME
DRIFTING BLOWING/DRIFTING FOR A PERIOD TIME.
SNOW WILL CONTINUE INTO TUE MORNING...ENDING BY LATE MORNING AS THE
SYSTEM QUICKLY EXITS THE REGION. TEMPS ARE EXPECTED TO RISE INTO THE
30 AND LOWER 40S MOST PLACES GIVEN STRONG BL MIXING PER CAA/STEEP LL
LAPSE RATES AND A SECONDARY COLD FRONT. HAVE ADJUSTED WINDS FOR
THIS. WINDS ARE NOT EXPECTED TO CAUSE ANY BLOWING SNOW CONCERNS TUE
GIVEN FAIRLY WARM BL TEMPS. GENERALLY COLD CONDITIONS EXPECTED TUE
NIGHT ALTHOUGH WINDS WILL REMAIN UP THROUGH THE NIGHT MOST PLACES
AND ARE EXPECTED TO MODERATE TEMPS TO A DEGREE. SMALL ADJUSTMENT MADE
TO TEMPS.
&&
.LONG TERM...WEDNESDAY THROUGH MONDAY
ISSUED AT 235 PM MDT MON MAR 10 2014
UPPER RIDGING ACROSS THE WESTERN CONUS WILL BRING DRY
CONDITIONS AND ABOVE AVERAGE TEMPERATURES THROUGH FRIDAY. THE NEXT
SHORTWAVE DIVES THRU THE NORTHERN PLAINS IN NWRLY FLOW FOR FRIDAY
NIGHT AND THE UPCOMING WEEKEND...BRINGING CHANCES FOR RAIN/SNOW AND
SLIGHTLY COOLER TEMPERATURES.
&&
.AVIATION...FOR THE 18Z TAFS THROUGH 18Z TUESDAY
ISSUED AT 235 PM MDT MON MAR 10 2014
VFR CONDITIONS WILL CONTINUE THROUGH THIS AFTERNOON.
CONDITIONS WILL DETERIORATE QUICKLY TONIGHT AS RAIN MOVES IN AND
CHANGES OVER TO SNOW FROM NORTH TO SOUTH BRINGING WIDESPREAD LIFR
CIGS/VIS AFTER 03Z ACROSS NORTHWEST SOUTH DAKOTA...AND BY 06Z ACROSS
THE REMAINDER OF THE AREA. THESE CONDITIONS WILL PERSIST THROUGH 18Z
ON TUESDAY.
&&
.UNR WATCHES/WARNINGS/ADVISORIES...
SD...WINTER STORM WARNING FROM MIDNIGHT TONIGHT TO NOON MDT TUESDAY
FOR SDZ024-025.
WINTER WEATHER ADVISORY FROM MIDNIGHT TONIGHT TO NOON MDT
TUESDAY FOR SDZ001-002-012>014-028-072-073.
WY...WINTER STORM WARNING FROM MIDNIGHT TONIGHT TO NOON MDT TUESDAY
FOR WYZ057.
WINTER WEATHER ADVISORY FROM MIDNIGHT TONIGHT TO NOON MDT
TUESDAY FOR WYZ054-056-071.
&&
SHORT TERM...JC
LONG TERM...15
AVIATION...15HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE RAPID CITY SD 319 PM MDT MON MAR 10 2014 SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058- 071-111300- HARDING-PERKINS-BUTTE-NORTHERN MEADE CO PLAINS-ZIEBACH- NORTHERN BLACK HILLS-NORTHERN FOOT HILLS-RAPID CITY- SOUTHERN FOOT HILLS-CENTRAL BLACK HILLS-SOUTHERN BLACK HILLS- CUSTER CO PLAINS-PENNINGTON CO PLAINS-HAAKON-FALL RIVER-SHANNON- JACKSON-BENNETT-MELLETTE-TODD-TRIPP-STURGIS/PIEDMONT FOOT HILLS- SOUTHERN MEADE CO PLAINS-HERMOSA FOOT HILLS-NORTHERN CAMPBELL- SOUTHERN CAMPBELL-WESTERN CROOK-WYOMING BLACK HILLS-WESTON- NORTHEASTERN CROOK- 319 PM MDT MON MAR 10 2014 /419 PM CDT MON MAR 10 2014/ ...WINTER STORM WARNING FROM MIDNIGHT TONIGHT THROUGH TUESDAY MORNING NORTHERN BLACK HILLS... ...WINTER WEATHER ADVISORY FROM MIDNIGHT TONIGHT THROUGH TUESDAY MORNING CENTRAL BLACK HILLS AND NORTHEAST WYOMING THROUGH NORTHWEST SOUTH DAKOTA PLAINS... THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN SOUTH DAKOTA AND NORTHEASTERN WYOMING. .DAY ONE...THIS AFTERNOON AND TONIGHT A STRONG LOW PRESSURE SYSTEM WILL MOVE INTO THE AREA TONIGHT. THIS WILL BRING WIDESPREAD RAIN TO THE REGION...WITH RAIN CHANGING TO SNOW LATER TONIGHT. SEVERAL INCHES OF SNOW ACCUMULATION IS EXPECTED...WITH MORE THAN 6 INCHES IN THE NORTHERN BLACK HILLS AND NORTHERN FOOTHILLS. LESSER AMOUNTS ARE EXPECTED ON THE PLAINS OF NORTHEAST WYOMING AND WESTERN SOUTH DAKOTA WHERE 2 TO 4 INCHES IS EXPECTED. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY SNOW WILL CONTINUE TUESDAY MORNING...THEN END TUESDAY AFTERNOON. .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 JC
The national radar mosaic for the moment the first event began.
3 flood. Local standard time, as filed.
Minor ice jam flooding occurred along the Moreau River. The river gauge along Highway 73 northwest of Faith crested at 17.4 feet, or 1.4 feet above flood stage. Some agricultural land was flooded.
Minor flooding occurred along the Little Missouri River due to ice jams. The river gauge at Camp Crook crested at 16.2 feet, or 4.2 feet above flood stage. Outbuildings and agricultural land in the area were flooded.
Minor flooding occurred along the White River from north of Hamill to the Missouri River. Flooding was confined to agricultural land along the river.
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, March 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: 500240, 500216, 500248.