National Weather Service United States Department of Commerce
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
829 PM CDT SUN JUL 19 2020

...NWS DAMAGE SURVEY FOR EARLY MORNING JULY 18 AND LATE EVENING 
JULY 18, 2020 TORNADO EVENTS - INITIAL ISSUANCE... 


.NORTHWEST ISANTI COUNTY, MN TORNADO...

RATING:                 EF-1
ESTIMATED PEAK WIND:    90 MPH
PATH LENGTH /STATUTE/:  3.0 MILES
PATH WIDTH /MAXIMUM/:   100 YARDS
FATALITIES:             0
INJURIES:               0

START DATE:             JUL 18 2020
START TIME:             1259 AM CDT
START LOCATION:         9 SSE OGILVIE, MN
START LAT/LON:          45.7092 / -93.3803

END DATE:               JUL 18 2020
END TIME:               105 AM CDT
END LOCATION:           7 W BRAHAM, MN
END LAT/LON:            45.7092 / -93.3185

THIS TORNADO WAS EMBEDDED WITHIN A LINE OF SEVERE THUNDERSTORMS
PRODUCING STRAIGHT LINE WIND DAMAGE, BUT A CONCENTRATED AREA OF
DAMAGE EXHIBITING TORNADO CHARACTERISTICS TRACKED ACROSS 
NORTHWEST ISANTI COUNTY. A LOCAL ANEMOMETER MEASURED AN 87 MPH 
GUST. 


.RUSH LAKE, MN TORNADO...

RATING:                 EF-0
ESTIMATED PEAK WIND:    80 MPH
PATH LENGTH /STATUTE/:  1.5 MILES
PATH WIDTH /MAXIMUM/:   100 YARDS
FATALITIES:             0
INJURIES:               0

START DATE:             JUL 18 2020 
START TIME:             124 AM CDT
START LOCATION:         5 SE BRAHAM, MN (WEST SIDE OF RUSH LAKE)
START LAT/LON:          45.6765 / -93.1032

END DATE:               JUL 18 2020
END TIME:               127 AM CDT
END LOCATION:           6 SE BRAHAM, MN (SOUTH SIDE OF RUSH LAKE)
END LAT/LON:            45.6634 / -93.0886

A BRIEF TORNADO SPIN UP WITHIN A LINE OF SEVERE THUNDERSTORMS 
OCCURRED ON THE WEST SIDE OF RUSH LAKE AND TRACKED TO THE SOUTH 
SIDE. BOATS AND DOCKS WERE DAMAGED. SPORADIC STRAIGHT LINE WIND 
DAMAGE OCCURRED SURROUNDING THIS TRACK.


.WOODBURY, MN TO AFTON, MN TORNADO...

RATING:                 EF-0
ESTIMATED PEAK WIND:    65 MPH
PATH LENGTH /STATUTE/:  3.1 MILES 
PATH WIDTH /MAXIMUM/:   50 YARDS 
FATALITIES:             0 
INJURIES:               0

START DATE:             JUL 18 2020
START TIME:             942 PM CDT
START LOCATION:         2 SE WOODBURY, MN
START LAT/LON:          44.8900 / -92.9050

END DATE:               JUL 18 2020
END TIME:               951 PM CDT
END LOCATION:           3 W AFTON, MN
END LAT/LON:            44.9050 / -92.8450

NO DAMAGE WAS FOUND AND NO DAMAGE REPORTS WERE RECEIVED. HOWEVER,
KMPX RADAR CONFIRMED A TORNADO BASED ON A BRIEF TORNADIC DEBRIS
SIGNATURE AND TMSP RADAR TRACKED A COUPLET NORTHEAST ACROSS
SOUTHERN WASHINGTON COUNTY. THEREFORE, THE TORNADO IS RATED EF0.
PATH LENGTH, BEGINNING AND ENDING POINTS, AND BEGINNING AND ENDING
TIMES ARE APPROXIMATE.


.SOUTHERN WASHINGTON COUNTY, MN INTO PIERCE COUNTY, WI TORNADO...

RATING:                 EF-1
ESTIMATED PEAK WIND:    100 MPH
PATH LENGTH /STATUTE/:  9.5 MILES
PATH WIDTH /MAXIMUM/:   400 YARDS
FATALITIES:             0
INJURIES:               0

START DATE:             JUL 18 2020 
START TIME:             953 PM CDT
START LOCATION:         5 N HASTINGS, MN
START LAT/LON:          44.8188 / -92.8441

END DATE:               JUL 18 2020
END TIME:               1020 PM CDT
END LOCATION:           2 SW RIVER FALLS, WI
END LAT/LON:            44.8336 / -92.6571

EXTENSIVE TREE DAMAGE ALONG THE PATH, MANY OF WHICH WERE SNAPPED
ABOUT HALF WAY UP. THE HEAVIEST DAMAGE OCCURRED ON TOP OF A BLUFF AS
THE TORNADO CROSSED THE ST. CROIX RIVER INTO WISCONSIN. A FEW FARM
OUTBUILDINGS WERE ALSO DAMAGED.


EF SCALE: THE ENHANCED FUJITA SCALE CLASSIFIES TORNADOES INTO THE
FOLLOWING CATEGORIES.

EF0...WEAK......65 TO 85 MPH
EF1...WEAK......86 TO 110 MPH
EF2...STRONG....111 TO 135 MPH
EF3...STRONG....136 TO 165 MPH
EF4...VIOLENT...166 TO 200MPH
EF5...VIOLENT...>200MPH

NOTE:
THE INFORMATION IN THIS STATEMENT IS PRELIMINARY AND SUBJECT TO
CHANGE PENDING FINAL REVIEW OF THE EVENTS AND PUBLICATION IN NWS 
STORM DATA.