Public Information Statement
Issued by NWS Rapid City, SD

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000
NOUS43 KUNR 222018
PNSUNR
SDZ002-014-230830-

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE RAPID CITY SD
218 PM MDT MON JUN 22 2015

...NWS ANALYSIS OF THE 06/21/15 BISON/GLAD VALLEY TORNADO EVENT...

DURING THE EVENING OF JUNE 21, 2015 A SUPERCELL TRAVELED ACROSS
PERKINS AND ZIEBACH COUNTIES. EYE WITNESS AND CHASER REPORTS
CONFIRM FOUR DISTINCT TORNADO TOUCHDOWNS WITH THIS SUPERCELL. THE
TORNADOES REMAINED IN MAINLY RURAL AREAS WITH LITTLE TO NO DAMAGE
BEING REPORTED.

.TORNADO #1...

RATING:                 EF-0
ESTIMATED PEAK WIND:    85 MPH
PATH LENGTH /STATUTE/:  10 MILES
PATH WIDTH /MAXIMUM/:   100 YARDS
FATALITIES:             0
INJURIES:               0

START DATE:             JUN 21 2015
START TIME:             656 PM MDT
START LOCATION:         10 MILES SW OF LODGEPOLE

END DATE:               JUN 21 2015
END TIME:               720 PM MDT
END LOCATION:           12 MILES SSE OF LODGEPOLE


.TORNADO #2...

RATING:                 EF-0
ESTIMATED PEAK WIND:    85 MPH
PATH LENGTH /STATUTE/:  3 MILES
PATH WIDTH /MAXIMUM/:   100 YARDS
FATALITIES:             0
INJURIES:               0

START DATE:             JUN 21 2015
START TIME:             740 PM MDT
START LOCATION:         3 MILES ENE OF BISON

END DATE:               JUN 21 2015
END TIME:               750 PM MDT
END LOCATION:           3.5 MILES EAST OF BISON


.TORNADO #3...

RATING:                 EF-0
ESTIMATED PEAK WIND:    85 MPH
PATH LENGTH /STATUTE/:  1.8 MILES
PATH WIDTH /MAXIMUM/:   50 YARDS
FATALITIES:             0
INJURIES:               0

START DATE:             JUN 21 2015
START TIME:             806 PM MDT
START LOCATION:         4 MILES SW OF MEADOW

END DATE:               JUN 21 2015
END TIME:               811 PM MDT
END LOCATION:           4 MILES S OF MEADOW


.TORNADO #4...

RATING:                 EF-0
ESTIMATED PEAK WIND:    85 MPH
PATH LENGTH /STATUTE/:  0.5 MILES
PATH WIDTH /MAXIMUM/:   25 YARDS
FATALITIES:             0
INJURIES:               0

START DATE:             JUN 21 2015
START TIME:             850 PM MDT
START LOCATION:         7 MILES WSW OF GLAD VALLEY

END DATE:               JUN 21 2015
END TIME:               852 PM MDT
END LOCATION:           7 MILES WSW OF GLAD VALLEY


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 200 MPH
EF5...VIOLENT...>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.

$$
WARD


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