Public Information Statement
Issued by NWS Des Moines, IA

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PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
1106 AM CST Tue Mar 7 2017

...NWS DAMAGE SURVEY FOR MARCH 6TH TORNADO EVENT...

.Tornado #1 West of Knoxville, IA...

RATING:                 EF-1
ESTIMATED PEAK WIND:    90 to 100 MPH
PATH LENGTH /STATUTE/:  0.90 MILES
PATH WIDTH /MAXIMUM/:   100 YARDS
FATALITIES:             0
INJURIES:               0

START DATE:             March 6 2017
START TIME:             0732 PM CST
START LAT/LON:          41.3012_/_-93.2408

END DATE:               March 6 2017
END TIME:               0733 PM CST
END_LAT/LON:            41.2901_/_-93.2324

SURVEY_SUMMARY: NWS storm survey confirmed a brief tornado touchdown
approximately 5 miles west of Knoxville.  An outbuilding was heavily
damaged in this area and significant roof damage occurred to a residence.
This is consistent with winds of 90 to 100 mph - or EF1 damage.

.TORNADO #2  North of Knoxville, IA...

RATING:                 EF-1
ESTIMATED PEAK WIND:    85 to 95 MPH
PATH LENGTH /STATUTE/:  1.5 MILES
PATH WIDTH /MAXIMUM/:   80 YARDS
FATALITIES:             0
INJURIES:               0

START DATE:             March 6 2017
START TIME:             0737 PM CST
START LAT/LON:          41.3746_/_-93.1340

END DATE:               March 6 2017
END TIME:               0739 PM CST
END_LAT/LON:            41.3861_/_-93.1095

SURVEY_SUMMARY: NWS storm survey confirmed a second brief tornado touchdown
approximately 4 miles north of Knoxville.  Roof damage occurred to a residence
with large sections of shingles removed along with sporadic tree damage.
This is consistent with winds of 85 to 95 mph - or EF1 damage.

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.

$$

NWS DMX



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