674
NOUS43 KFSD 301735
PNSFSD
SDZ050-310545-
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1235 PM CDT WED JUL 30 2025
..NWS DAMAGE SURVEY FOR 07/28/25 TORNADO EVENT
DIXON SD TORNADO
RATING: EF-1
ESTIMATED PEAK WIND: 110 MPH
PATH LENGTH /STATUTE/: 11.35 MILES
PATH WIDTH /MAXIMUM/: 75 YARDS
FATALITIES: 0
INJURIES: 0
START DATE: JULY 28, 2025
START TIME: 4:28 PM CDT
START LOCATION: 1.3 NW DIXON SD
START LAT/LON: 43.3980/-99.4922
END DATE: JULY 28, 2025
END TIME: 4:49 PM CDT
END LOCATION: 4.5 NW LUCAS SD
END LAT/LON: 43.3245/-99.2925
A TORNADO TOUCHED DOWN IN AN OPEN FIELD APPROXIMATELY
1.3 MILES NORTHWEST OF DIXON SD. THE TORNADO MOVED SLOWLY
TO THE SOUTHEAST, DESTROYING A FARM OUTBUILDING AND THEN
MOVED ACROSS THE HWY 44/47 INTERSECTION WHERE IT DAMAGED
POWER POLES AND A DOT TRUCK SHELTER. THE TORNADO CONTINUED
SOUTHEAST FOR ANOTHER 12 MINUTES ACROSS OPEN COUNTRY BEFORE
ROPING OUT APPROXIMATELY 4.5 MILES NORTHWEST OF LUCAS SD.
THE TORNADO WAS RATED EF-1 WITH AN ESTIMATED MAXIMUM WIND
GUST OF 110 MPH.
THE NWS WOULD LIKE TO THANK THE GREGORY COUNTY EMERGENCY
MANAGER, GREGORY COUNTY SHERIFF, AND STORM CHASERS FOR
THEIR ASSISTANCE WITH THE TORNADO SURVEY.
BONESTEEL SD TORNADO
RATING: EF-2
ESTIMATED PEAK WIND: 135 MPH
PATH LENGTH /STATUTE/: 8.05 MILES
PATH WIDTH /MAXIMUM/: 100 YARDS
FATALITIES: 0
INJURIES: 0
START DATE: JULY 28, 2025
START TIME: 5:38 PM CDT
START LOCATION: 8.4 NW BONESTEEL SD
START LAT/LON: 43.1963/-98.9832
END DATE: JULY 28, 2025
END TIME: 6:06 PM CDT
END LOCATION: 0.4 N BONESTEEL SD
END LAT/LON: 43.0831/-98.9468
A TORNADO TOUCHED DOWN IN REMOTE OPEN COUNTRY APPROXIMATELY
8.4 MILES NORTHWEST OF BONESTEEL SD. THE TORNADO DAMAGED
POWER POLES ALONG COUNTY ROAD 57 AND THEN MOVED SOUTHEAST
FOR 23 MINUTES ACROSS ROUGH OPEN COUNTRY WEST OF THE MISSOURI
RIVER. THE TORNADO THEN DESTROYED A SINGLE FAMILY HOME AND
TWO NEARBY OUTBUILDINGS ALONG HWY 1806. THE TORNADO CONTINUED
SOUTHEAST TOWARD BONESTEEL SD, FLIPPING A CAMPER AND
DESTROYING AN ABANDONED TRAILER BEFORE DISSIPATING OVER THE
BALL FIELDS ON THE NORTH END OF BONESTEEL. THE TORNADO WAS
RATED EF-2 WITH AN ESTIMATED MAXIMUM WIND GUST OF 135 MPH.
THE NWS WOULD LIKE TO THANK THE GREGORY COUNTY EMERGENCY
MANAGER, BONESTEEL FIRE CHIEF, AND STORM CHASERS FOR THEIR
ASSISTANCE WITH THE TORNADO SURVEY.
ALVORD IA TORNADO
RATING: EF-1
ESTIMATED PEAK WIND: 110 MPH
PATH LENGTH /STATUTE/: 1.74 MILES
PATH WIDTH /MAXIMUM/: 75 YARDS
FATALITIES: 0
INJURIES: 0
START DATE: JULY 28, 2025
START TIME: 9:30 PM CDT
START LOCATION: 1.4 E ALVORD IA
START LAT/LON: 43.3437/-96.2769
END DATE: JULY 28, 2025
END TIME: 9:32 PM CDT
END LOCATION: 3.0 ESE ALVORD IA
END LAT/LON: 43.3364/-96.2443
A TORNADO TOUCHED DOWN IN A CORN FIELD APPROXIMATELY 1.4 MILES
EAST OF ALVORD IA, DAMAGING SOME FARM STRUCTURES AND A GROVE OF
TREES. THE TORNADO RACED SOUTHEAST AND DESTROYED A LARGE BARN
BEFORE LIFTING IN ANOTHER CORN FIELD APPROXIMATELY 3.0 MILES
EAST-SOUTHEAST OF ALVORD IA. THE TORNADO WAS RATED EF-1 WITH
AN ESTIMATED MAXIMUM WIND SPEED OF 110 MPH.
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 EVENTS AND PUBLICATION IN NWS
STORM DATA.
NWS SIOUX FALLS
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