Damage Assessment Sioux, Grant, LaMoure, and Logan Counties-Updated July 15

Sioux County

IN SIOUX COUNTY SIGNIFICANT HAIL DAMAGE WAS REPORTED IN THE AREA
FROM SOLEN TO CANNONBALL...TO THE PRAIRIE KNIGHTS RESORT. ABOUT ONE
HUNDRED BUILDINGS WERE DAMAGED. SOME HOMES HAD HAILSTONES CRASH
COMPLETELY THROUGH THE ROOF WITH WINDOWS BROKEN ON THE WEST SIDE. A
SIGNIFICANT NUMBER OF VEHICLES WERE DAMAGED...INCLUDING FRONT AND
REAR WINDOWS COMPLETELY SMASHED OUT. SIGNIFICANT CROP DAMAGE WAS
ALSO REPORTED.

MOST HAIL WAS GOLFBALL TO SOFTBALL SIZE, THE LARGEST STONES FELL
AT THE PRAIRIE KNIGHTS RESORT AND SOME WERE 5 INCHES IN DIAMETER.
THIS TIES A NORTH DAKOTA STATE RECORD SET ON AUGUST 3, 1969 IN
MERCER COUNTY. THESE HAILSTONES CRASHED COMPLETELY THROUGH THE FRONT
WINDSHIELD OF VEHICLES INJURING 2 PEOPLE. ONE OF THE INJURED WAS
TRANSPORTED TO A LOCAL HOSPITAL. THERE WERE ALSO LARGE HAIL DIVOTS
IN THE GROUND.

Picture from Prarie Knights:
Prarie Knights Hail Damage July 14th 2010

5 Inch hailstone:
5 Inch Hailstone - Prarie Knights - ties ND state record


NATIONAL WEATHER SERVICE ASSESSMENT TEAMS SPOKE WITH MANY TRIBAL
OFFICIALS INCLUDING VICE CHAIRMAN MIKE FAITH AND EMERGENCY MANAGER
JOHNELLE LEINGANG. WE ALSO SPOKE WITH OTHER FEDERAL GOVERNMENT
AGENCY OFFICIALS...PRAIRIE KNIGHTS RESORT MANAGEMENT AND LOCAL
RESIDENTS.

Grant County

THE NATIONAL WEATHER SERVICE DAMAGE ASSESSMENT TEAM DETERMINED
THAT...IN GRANT COUNTY...VERY SIGNIFICANT HAIL DAMAGE...AND SOME
WIND DAMAGE...EXTENDS ACROSS THE ENTIRE WIDTH OF THE COUNTY ALONG
AND SOUTH OF HIGHWAY 21. THIS IS FROM NEW LEIPZIG...THROUGH
ELGIN...HEIL...LEITH...RALEIGH...AND SAINT GERTRUDE...TO JUST
NORTH OF SHIELDS. THERE IS A ROUGHLY 3 MILE WIDE SWATH OF CROP
DAMAGE ALONG THIS PATH.

Photo from Heil area:
Hail Damage Heil, ND July 14th

NO TORNADO DAMAGE WAS OBSERVED...HOWEVER...FIRE OFFICIALS WHO WERE
OUT SPOTTING DID SEE A FUNNEL CLOUD JUST SOUTH OF ELGIN. IT DID
NOT TOUCH THE GROUND AND QUICKLY RETREATED BACK INTO THE STORM.
THE FUNNEL WAS MADE VISIBLE BY LIGHTNING.

MOST HAIL STONES ACROSS THE COUNTY WERE GOLF BALL TO TENNIS BALL
SIZE...1 3/4 TO 2 1/2 INCHES DIAMETER. THE LARGEST STONES FELL 3
MILES SOUTH OF ELGIN AND WERE ABOUT 4 1/2 INCHES DIAMETER. THIS
WAS ALSO THE LOCATION OF HIGHEST WIND GUSTS...ESTIMATED AT 70 MPH
BASED ON ROOF DAMAGE TO OUTBUILDINGS ON A RANCH. EYE WITNESSES
DESCRIBED VERY HIGH WIND TO START...FOLLOWED BY THE HAIL. HORSES
HAD WELTS ALL OVER THEM AND ONE HAD PHYSICAL DAMAGE TO ITS SNOUT.

THREE WAVES OF STORMS CROSSED THE COUNTY. SPECIFICALLY AT HEIL THE
FIRST ONE WAS THE WORST...THE SECOND HAD SLIGHTLY SMALLER
HAIL...AND THE THIRD THE SMALLEST...ABOUT QUARTER SIZE. MANY
PEOPLE DESCRIBED A SIMILAR SCENARIO AS THE STORMS PASSED THROUGH
THEIR AREA.

LIGHTNING STRIKE FIRE...ON THE WEST SIDE OF ELGIN...LIGHTNING FROM
THE THIRD STORM THAT PASSED STRUCK THE CHIMNEY OF A HOUSE...
FOLLOWED THE CHIMNEY TO THE BASEMENT AND STARTED A FIRE IN THE
BASEMENT AND ON ALL THREE LEVELS OF THE HOME IN THE ELECTRICAL
WIRING. FIRE OFFICIALS SAID THAT WHEN THEY ARRIVED ON THE SCENE
THE METAL ANTENNA ON THE CHIMNEY WAS GLOWING BRIGHT ORANGE. THE
HOME OWNER STATED THAT THEIR INSURANCE AGENT DETERMINED THE HOME
WAS A TOTAL LOSS. A FAMILY OF 5 OCCUPIED THE HOME...ALL GOT OUT
SAFELY.

THE NATIONAL WEATHER SERVICE ASSESSMENT TEAM SPOKE WITH EMERGENCY
MANAGER JOANN OZBUN...ELGIN CITY POLICE CHIEF AND FIRE OFFICIALS
...AND MANY AFFECTED COUNTY RESIDENTS. THANK YOU FOR TAKING THE
TIME TO HELP US BETTER UNDERSTAND THE WEATHER EVENTS THAT OCCURRED
ACROSS YOUR COUNTY.

LaMoure County

A STORM SURVEY WAS CONDUCTED IN LAMOURE COUNTY DURING THE AFTERNOON
OF WEDNESDAY JULY 14. SIGNIFICANT WIND DAMAGE WAS OBSERVED AROUND
THE GRAND RAPIDS AND LAMOURE AREAS FROM SEVERE STORMS WHICH IMPACTED
LAMOURE COUNTY DURING THE EARLY MORNING HOURS OF JULY 14TH.
EXTENSIVE WIND DAMAGE TO CORN FIELDS WAS OBSERVED FROM AROUND COUNTY
HIGHWAY 35...SOUTH AND EAST THROUGH GRAND RAPIDS AND TOWARDS THE
CITY OF LAMOURE. CORN STALKS WERE BENT OVER FROM NORTHWEST TO
SOUTHEAST WITH NO DEFINED PATH OBSERVED WHICH IS INDICATIVE OF
STRAIGHT LINE WINDS. THE MOST SEVERE WIND DAMAGE WAS AROUND THE
GRAND RAPIDS AREA WHERE SIGNIFICANT TREE DAMAGE OCCURRED INCLUDING
NUMEROUS MATURE HARDWOOD TREES UPROOTED OR SNAPPED IN HALF. DAMAGE
IN GRAND RAPIDS ALSO CONSISTED OF ROOF DAMAGE TO POLE BARNS AND
SEVERAL GRAIN BINS DESTROYED. IN THE CITY OF LAMOURE...WIDESPREAD
TREE DAMAGE WAS ALSO OBSERVED. MOST DAMAGE CONSISTED OF TREE
BRANCHES BLOWN OFF OF TREES...HOWEVER NUMEROUS TREES HERE WERE ALSO
UPROOTED OR SNAPPED. IN ADDITION...A POLE BARN WEST OF LAMOURE
SUSTAINED HEAVY ROOF DAMAGE AND LARGE DOORS BLOWN INTO THE BUILDING.
ACROSS THE ENTIRE SURVEY AREA...LARGE 1300 POUND HAY BALES WERE
BLOWN ACROSS FIELDS...SOME BLOWN 300-500 YARDS. IRRIGATION EQUIPMENT
BETWEEN GRAND RAPIDS AND LAMOURE WAS ALSO KNOCKED OVER/TURNED ON ITS
SIDE.

THE DAMAGE OBSERVED ACROSS THE ASSESSED AREA WAS BROAD WITH NO
DEFINED DAMAGE PATHS...AND ALL TREE AND STRUCTURAL DEBRIS WAS BLOWN
FROM NORTHWEST TO SOUTHEAST. THE CONCLUSION OF THE STORM SURVEY WAS
THAT VERY STRONG STRAIGHT LINE THUNDERSTORM WINDS WERE RESPONSIBLE
FOR THE DAMAGE. THE SEVERITY OF THE WORST DAMAGE OBSERVED INDICATES
STRAIGHT LINE WINDS UP TO 105 MPH.

THE NATIONAL WEATHER SERVICE ASSESSMENT TEAM INCLUDED LAMOURE COUNTY
EMERGENCY MANAGER SHERI GARTNER...WHOSE HELP WAS CRITICAL WITH THE
STORM SURVEY. MANY AFFECTED COUNTY RESIDENTS WERE ALSO GRACIOUS IN
SHARING INFORMATION. THANK YOU FOR TAKING THE TIME TO HELP US BETTER
UNDERSTAND THE WEATHER EVENTS THAT OCCURRED ACROSS YOUR COUNTY.

Pictures from LaMoure County:

 

Logan County

A STORM SURVEY WAS CONDUCTED IN FAR NORTHEASTERN LOGAN COUNTY DURING
THE AFTERNOON OF WEDNESDAY JULY 14. WIND DAMAGE WAS OBSERVED AROUND
THE GACKLE AREA FROM SEVERE STORMS WHICH IMPACTED LOGAN COUNTY
DURING THE EARLY MORNING HOURS OF JULY 14TH. NUMEROUS TREE BRANCHES
WERE BLOWN OFF OF TREES...INCLUDING ONE TREE WHICH WAS SNAPPED IN
HALF WITHIN THE CEMETERY ON THE WEST SIDE OF TOWN. OTHER OBSERVED
DAMAGE CONSISTED OF A FLAG POLE BENT OVER AND A TELEVISION ANTENNA
BLOWN OFF OF A ROOF.

THE CONCLUSION OF THE STORM SURVEY WAS THAT STRONG STRAIGHT LINE
THUNDERSTORM WINDS WERE RESPONSIBLE FOR THE DAMAGE...ESTIMATED
BETWEEN 60 AND 75 MPH.

FURTHERMORE...LOW LYING AREAS OF COUNTY ROAD 67/63RD AVENUE
SOUTHEAST NEAR SMALL LAKES AND STREAMS BETWEEN GACKLE AND INTERSTATE
94 SHOWED SIGNS OF RECENT FLASH FLOODING. WATER WAS FLOWING FREELY
OVER ONE AREA...WITH SEVERE EROSION OVER SEVERAL OTHER LOW LYING
AREAS OF THE ROAD.

THE NATIONAL WEATHER SERVICE ASSESSMENT TEAM WAS DIRECTED TO
NORTHEAST LOGAN COUNTY AFTER EARLIER COMMUNICATION WITH THE LOGAN
COUNTY EMERGENCY MANAGER CYNTHIA DOLL. THANK YOU FOR TAKING
THE TIME TO HELP US BETTER UNDERSTAND THE WEATHER EVENTS THAT
OCCURRED ACROSS YOUR COUNTY.

Picture from Logan County (Gackle):

JP Martin/B. Selzler/K. Simosko/N. Heinert

 



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