Monday Storm Damage Survey (Updated for Morton County)


...STORM DAMAGE SURVEYS FROM MONDAY EVENING THUNDERSTORMS...

IN EASTERN BURLEIGH COUNTY...
A FARMSTEAD 1 MILE WEST OF DRISCOLL SUSTAINED DAMAGE TO TWO
OUTBUILDINGS. ONE LOST ITS ROOF AND ONE WAS COMPLETELY DESTROYED.
ALL OF THE DEBRIS WAS BLOWN TO THE NORTH AND SOME SHEET METAL FROM
THE BUILDINGS WAS BLOWN 2 MILES NORTH ACROSS INTERSTATE 94. THE
DAMAGE WAS INDICATIVE OF 80 TO 85 MPH STRAIGHT LINE WINDS...BUT
NOT A TORNADO.

ONE MILE NORTH OF DRISCOLL SEVERAL TREES WERE DAMAGED AND A 6
INCH DIAMETER TREE TRUNK WAS SNAPPED. ADDITIONAL TREE DAMAGE WAS
EVIDENT FROM DRISCOLL NORTHWARD TO ARENA...AND A FARMSTEAD 5 MILES
SOUTH OF ARENA HAD AN OUTBUILDING DAMAGED. DEBRIS WAS ALL BLOWN TO
THE NORTH...SO THIS DAMAGE INDICATES STRAIGHT LINE WINDS BETWEEN
60 TO 75 MPH.

THE WORST DAMAGE SURVEYED TODAY WAS FROM A FARMSTEAD 2 MILES EAST
OF ARENA WHERE ONE OUTBUILDING WAS COMPLETELY DESTROYED AND A
TELEVISION ANTENNA WAS BLOWN DOWN. SEVERAL SHINGLES WERE BLOWN
OFF THE HOME AND ANOTHER OUTBUILDING WAS MISSING PART OF ITS ROOF.
SEVERAL TREES NEARBY WERE DAMAGED...BUT ALL DEBRIS WAS BLOWN TO
THE NORTH. THE SEVERITY OF THE DAMAGE INDICATES STRAIGHT LINE
WINDS OF AROUND 90 MPH.

THERE WERE NUMEROUS TREES DAMAGED ON THE WEST SIDE OF WING. ONE
AREA MADE UP MOSTLY OF LARGE COTTONWOODS HAD SEVERAL LARGE LIMBS
SNAPPED AND BLOWN TO THE NORTH...WITH A FEW OF THE TRUNKS SNAPPED.
THIS DAMAGE IS CONSISTENT WITH STRAIGHT LINE WINDS 75 TO 85 MPH.

IN MORTON COUNTY...
DAMAGE TO FARMSTEADS WAS SIGNIFICANT AND WIDESPREAD NORTH OF NEW
SALEM. MANY FARMSTEADS IN THE AREA BORDERED BY INTERSTATE 94 AND THE
OLIVER COUNTY LINE...AND BETWEEN HIGHWAY 31 TO 7 MILES EAST OF
HIGHWAY 31...SUSTAINED DAMAGE TO OUTBUILDINGS.

A FERTILIZER PLANT A MILE NORTH OF NEW SALEM HAD ITS ENTIRE ROOF
BLOWN OFF AND STREWN THROUGH THE FIELD TO THE NORTH. THE BUILDING
MAY BE A COMPLETE LOSS.

ONE FARM IN THIS AREA HAD THE ROOF OF AN OUTBUILDING LIFTED OFF
AND SMASHED BACK DOWN INTO THE BUILDING AND JUST NORTH OF IT.

ANOTHER FARM HAD PARTS OF ROOFS TORN FROM OUTBUILDINGS AND HAD
SEVERAL TREES SNAPPED AND OTHERS WITH BRANCHES BROKEN.

ANOTHER FARM...THE WORST DAMAGED...HAD PART OF THE ROOF TORN FROM A
LARGE CATTLE BUILDING...AND PARTS OF THE SIDE WALLS COLLAPSED IN.
THE DEBRIS WAS STREWN THROUGH THE FIELD TO THE NORTH. TREES WERE
ALSO DAMAGED AND HAY BALES WERE MOVED. A HOPPER BIN RESTING ON A
CEMENT SLAB WAS MOVED. AN AUGER WAS SLID INTO THE BACK SIDE OF A
PARKED SEMI TRAILER AND THE BACK END OF THE TRAILER WAS MOVED.

MOST OF THIS DAMAGE IS CONSISTENT WITH 80 TO 95 MPH THUNDERSTORM
WINDS AND NOT A TORNADO. MONDAY EVENING SAW LINES OF THUNDERSTORMS
MOVING THROUGH NORTH DAKOTA. IT IS NOT UNCOMMON TO HAVE SMALLER SPIN
UPS OF TORNADOES ALONG LINES OF THUNDERSTORMS. NATIONAL WEATHER
SERVICE METEOROLOGISTS...WHEN ASSESSING STORM DAMAGE...NEED TO
CONCLUDE WHAT THE MOST LIKELY CAUSE OF THE DAMAGE WAS...STRAIGHT
LINE WINDS...OR TORNADOES. IN THE ABOVE CASES...MOST OF THE EVIDENCE
POINTS TOWARDS WIND DAMAGE...AND NOT TORNADO DAMAGE.



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