415
NOUS43 KBIS 261724
PNSBIS
NDZ034-270530-
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
1224 PM CDT THU JUN 26 2025
..NWS DAMAGE SURVEY FOR 06/20/2025 TORNADO EVENT - UPDATE # 1
UPDATE
THE RATING FOR THE TORNADO THAT OCCURRED NEAR SWEET BRIAR LAKE HAS BEEN
UPDATED BASED ON ADDITIONAL ASSESSMENT OF A FINAL KNOWN DAMAGE POINT,
WHERE A WIND TURBINE WAS SNAPPED AND TOPPLED NEAR THE BOTTOM OF THE
SUPPORT POLE. BASED ON THIS, THE TORNADO HAS NOW BEEN RATED AS AN EF-2.
SWEET BRIAR
RATING: EF2
ESTIMATED PEAK WIND: 120 MPH
PATH LENGTH /STATUTE/: 5.87 MILES
PATH WIDTH /MAXIMUM/: 0 YARDS
FATALITIES: 0
INJURIES: 0
START DATE: 06/20/2025
START TIME: 08:48 PM CDT
START LOCATION: 6 NNW SWEET BRIAR LAKE / MORTON COUNTY / ND
START LAT/LON: 46.9486 / -101.3247
END DATE: 06/20/2025
END TIME: 08:59 PM CDT
END LOCATION: 6 S NELSON LAKE / MORTON COUNTY / ND
END LAT/LON: 46.9743 / -101.2116
SURVEY SUMMARY:
QLCS TORNADO DAMAGE REPORTED THROUGH SOCIAL MEDIA. DAMAGE TRACK
STARTS NEAR THE INTERSECTION OF 41ST AVE AND 32ND STREET, NEW
SALEM, APPROXIMATELY 6 MILES NORTH-NORTHWEST OF SWEET BRIAR LAKE.
THE TORNADO THEN TRACKED EAST-NORTHEAST AND IMPACTED
3 FARMSTEADS. THE FIRST FARM HAD MINIMAL DAMAGE, BEFORE THE MOST
OBSERVED DAMAGE OCCURRED AT THE SECOND FARM. THIS IS WHERE TWO
SEPARATE FARM BUILDINGS LOST THEIR ROOFS, AND ONE HAD THE WALLS
DESTROYED AS WELL, WHICH WAS CONSISTENT WITH ESTIMATED WIND
SPEEDS OF 110 MPH WHICH IS EQUIVALENT TO EF-1 DAMAGE. THERE WAS
ALSO A GRAIN BIN SIGNIFICANTLY DAMAGED. ABOUT A MILE OF POWER
POLES WERE BROKEN OR LEANED OVER ON COUNTY ROAD 84 IN BETWEEN THE
SECOND AND THIRD FARMS THAT WERE HIT. THE THIRD FARM HAD ROOF
DAMAGE TO THE MAIN HOUSE AS WELL AS TO ONE OF THE FARM BUILDINGS,
CONSISTENT WITH EF-1 WIND SPEEDS AROUND 110 MPH. THE TORNADO THEN
TRACKED EAST AND HIT A WIND TURBINE THAT LOST A BLADE. THE FINAL
KNOWN DAMAGE POINT IS ABOUT 7.5 MILES NORTH-NORTHEAST OF SWEET
BRIAR LAKE, WHERE A WIND TURBINE WAS SNAPPED AND TOPPLED NEAR THE
BOTTOM OF THE SUPPORT POLE. THIS DAMAGE IS CONSISTENT WITH WIND
SPEEDS OF AROUND 120 MPH, WHICH PUTS THE DAMAGE PATH UP TO EF-2.
THE CONFIRMED PATH SO FAR IS APPROXIMATELY 6 MILES LONG AND THE
TORNADO LASTED FOR 11 MINUTES.
EF SCALE: THE ENHANCED FUJITA SCALE CLASSIFIES TORNADOES INTO THE
FOLLOWING CATEGORIES:
EF0.....65 TO 85 MPH
EF1.....86 TO 110 MPH
EF2.....111 TO 135 MPH
EF3.....136 TO 165 MPH
EF4.....166 TO 200 MPH
EF5.....>200 MPH
NOTE:
THE INFORMATION IN THIS STATEMENT IS PRELIMINARY AND SUBJECT TO
CHANGE PENDING FINAL REVIEW OF THE EVENT AND PUBLICATION IN
NWS STORM DATA.
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