Strong to severe thunderstorms developed during the afternoon across central North Dakota along a north to south orientated stationary front. Convection was supported by a modest low level jet and afternoon destabilization ahead of a mid level longwave trough across the western United States.
Every event with a place to put it. 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 episode as NWS BIS wrote it up.
Strong to severe thunderstorms developed during the afternoon across central North Dakota along a north to south orientated stationary front. Convection was supported by a modest low level jet and afternoon destabilization ahead of a mid level longwave trough across the western United States. Large hail and severe thunderstorm winds occurred during this event. In addition, slow moving thunderstorms moving over already saturated soils produced one instance of flash flooding in and around Parshall, North 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 Bismarck, ND wrote its last area forecast discussion before the first event at Jun 7, 2:06 PM CST, 26 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BISMARCK ND 306 PM CDT THU JUN 7 2012 .SHORT TERM...TONIGHT THROUGH FRIDAY NIGHT... ELONGATED AREA OF LOW PRESSURE THROUGH THE CENTRAL PORTIONS OF NORTH DAKOTA WITH LARGE AREA OF SHOWERS AND THUNDERSTORMS TO THE WEST OF THE FRONT EXTENDING NORTH AND SOUTH THROUGH LOW. AHEAD OF THE FRONT IN WARM SECTOR INCREASING HEATING IS TRIGGERING ISOLATED THUNDERSTORMS. HIGH POPS TONIGHT WITH DRYING BEHIND THE FRONT LATE SPREADING FROM WEST TO EAST. FRIDAY WILL BE DRIER AND MILD...THEN INCREASING CHANCES OF PRECIPITATION AGAIN FOR SATURDAY MORNING. .LONG TERM...SATURDAY THROUGH NEXT THURSDAY... QUASI-ACTIVE WEATHER PATTERN DEPICTED THROUGH THE LONG TERM FORECAST PERIOD. WIDESPREAD RAIN ALONG WITH POSSIBLE SEVERE WEATHER STILL INDICATED FOR SATURDAY/SATURDAY NIGHT ACROSS THE REGION. DEEP UPPER LEVEL LOW WILL LIFT SLOWLY NORTHEAST ACROSS THE NORTHERN ROCKIES SAT/SAT NIGHT AND INTO SOUTH CENTRAL CANADA BY SUNDAY. LARGE SCALE ASCENT AHEAD OF THE LOW WILL PRODUCE A LARGE AREA OF MODERATE TO HEAVY RAIN WITH THE MOST FAVORED AREA WEST INTO NORTH CENTRAL NORTH DAKOTA. WITH THE WIDESPREAD RAINFALL TODAY ACROSS THE WEST...WILL NEED TO MONITOR FOR FLOODING SAT NIGHT THROUGH SUNDAY MORNING. BEST CHANCE FOR SEVERE THUNDERSTORMS SHOULD RESIDE CENTRAL AND EAST ALONG AND EAST OF AN AREA OF SFC LOW PRESSURE. LIMITING FACTOR WILL BE A RATHER STRONG CAPPING INVERSION DURING THE AFTERNOON...WHICH MAY NEED THE HELP OF AN EASTWARD ADVANCING COLD FRONT LATE IN THE DAY AND INTO SAT EVENING. THE SEVERE WEATHER THREAT DIMINISHES LATE SAT EVENING/EARLY SUNDAY MORNING...HOWEVER MODERATE TO HEAVY RAIN LOOKS TO CONTINUE THROUGH 18Z SUNDAY. LOTS OF UNCERTAINTY AFTERWARDS WITH MODELS ALREADY DISAGREEING FOR SATURDAYS POSSIBLE EVENT. MORE CERTAIN WE WILL SEE COOLER TEMPERATURES...NEAR TO SLIGHTLY BELOW NORMAL...SUNDAY-TUESDAY UNDER THE INFLUENCE OF THE UPPER LOW TO OUR NORTH. WARMING MID TO LATE WEEK WITH OUR FLOW DEPICTING TO SHIFT TO MORE WEST/SOUTHWEST. PRECIPITATION CHANCES WILL EXIST...HOWEVER NOT SEEING ANY MAJOR/WIDESPREAD EVENT. && .AVIATION... PERIODS OF SHOWERS AND ISOLATED THUNDER IN MOST TAFS THIS AFTERNOON AND EVENING. CEILINGS WILL REMAIN VFR EXCEPT ISOLATED MVFR IN VICINITY THUNDERSTORMS. && .BIS WATCHES/WARNINGS/ADVISORIES... NONE. && SHORT TERM...HW LONG TERM....NH AVIATION...NH
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BISMARCK ND 412 AM CDT THU JUN 7 2012 NDZ001>005-009>013-017>023-025-031>037-040>048-050-051-080915- DIVIDE-BURKE-RENVILLE-BOTTINEAU-ROLETTE-WILLIAMS-MOUNTRAIL-WARD- MCHENRY-PIERCE-MCKENZIE-DUNN-MERCER-OLIVER-MCLEAN-SHERIDAN-WELLS- FOSTER-GOLDEN VALLEY-BILLINGS-STARK-MORTON-BURLEIGH-KIDDER- STUTSMAN-SLOPE-HETTINGER-GRANT-BOWMAN-ADAMS-SIOUX-EMMONS-LOGAN- LA MOURE-MCINTOSH-DICKEY- 412 AM CDT THU JUN 7 2012 /312 AM MDT THU JUN 7 2012/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL NORTH DAKOTA...NORTHWEST NORTH DAKOTA...SOUTH CENTRAL NORTH DAKOTA...SOUTHEAST NORTH DAKOTA AND SOUTHWEST NORTH DAKOTA. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS WILL BECOME LIKELY DURING THE DAY TODAY AND CONTINUE THROUGH EARLY TONIGHT. SOME THUNDERSTORMS MAY BE SEVERE WITH LARGE HAIL AND HEAVY RAINFALL AS THE PRIMARY THREATS. THE POTENTIAL FOR SEVERE WEATHER WILL DIMINISH FROM WEST TO EAST TONIGHT. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THERE WILL BE A CHANCE OF THUNDERSTORMS FRIDAY NIGHT. SEVERE WEATHER AND LOCALLY HEAVY RAINFALL WILL BE POSSIBLE. A COLD FRONT PUSHING INTO THE REGION WILL ALSO GENERATE A CHANCE OF THUNDERSTORMS LATE SATURDAY INTO EARLY SUNDAY. SOME OF THESE STORMS COULD BECOME SEVERE WITH VERY LARGE HAIL...LOCALLY DAMAGING WINDS...AND A POSSIBLE TORNADO OR TWO BEING THE PRIMARY THREATS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED. PLEASE REPORT ANY SEVERE WEATHER SUCH AS LARGE HAIL...DAMAGING WINDS...OR HEAVY RAINFALL...TO THE BISMARCK NATIONAL WEATHER SERVICE AT 1-800-247-0212. KS/TM
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 310 PM CDT THU JUN 7 2012 NDZ010-011-019-021-072045- MCLEAN ND-MERCER ND-MOUNTRAIL ND-WARD ND- 310 PM CDT THU JUN 7 2012 ...SPECIAL WEATHER STATEMENT FOR SOUTHERN WARD...SOUTHEASTERN MOUNTRAIL...NORTHEASTERN MERCER AND WESTERN MCLEAN COUNTIES UNTIL 345 PM CDT... AT 305 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM HAZEN BAY TO DEEP WATER CREEK RECREATION AREA...AND MOVING NORTHEAST AT 25 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 45 MPH ARE EXPECTED WITH THESE STORMS...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE... PICK CITY... WHITE SHIELD... RIVERDALE... RAUB... LAKE SAKAKAWEA STATE PARK... EMMET... ROSEGLEN... FORT STEVENSON STATE PARK... GARRISON... PARSHALL... MAKOTI... RYDER... PLAZA... DOUGLAS... IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED ROADWAY. AYD
The national radar mosaic for the moment the first event began.
3 hail, 1 flash flood, 1 thunderstorm wind. Local standard time, as filed.
Several reports of large hail were recieved. The largest hail stone was measured at half dollar sized.
Very heavy rainfall of up to six inches fell in and around the Parshall area. Water was reported to be flowing over Highway 37 south of Parshall.
The strong winds blew down seven power poles.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in North Dakota in 2012Every state in 2012This day in weather historyWarnings in North Dakota, June 2012
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: 377673, 377677, 377678, 377676, 377680.