Public Information Statement
Issued by NWS Des Moines, IA
NOUS43 KDMX 072136
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
336 PM CST Tue Mar 7 2017
...TORNADO #6 FOR MARCH 6TH TORNADO EVENT...
.Tornado #6 Seymour, IA...
ESTIMATED PEAK WIND: 115 to 125 MPH
PATH LENGTH /STATUTE/: 12.6 MILES
PATH WIDTH /MAXIMUM/: 200 YARDS
START DATE: March 6 2017
START TIME: 0816 PM CST
START LAT/LON: 40.6365_/_-93.1969
END DATE: March 6 2017
END TIME: 0828 PM CST
SURVEY_SUMMARY: NWS storm survey confirmed a tornado touched down
about five miles southwest of Seymour in Wayne County where several
trees sustained major damage and several farmsteads where damaged.
The tornado then tracked northeast through rural sections of Wayne
County and produced sporadic tree damage. The tornado then
moved into the south side of Seymour and produced significant damage to
several homes and structures with partial collapse of walls and roof
structures and widespread tree damage. A brick school building also
sustained major damage to its roof and walls. The tornado tracked northeast
out of Seymour and damaged another residence along 110th Avenue with several
trees being topped. The tornado continued across mainly rural areas
of Wayne and Appanoose Counties before crossing IA Highway 2 where minor
damage occurred to a farmstead. The tornado appeared to dissipate
shortly after crossing Highway 2. The worst damage from this
tornado occurred in Seymour where damage was consistent with winds of
115 to 125 mph - or EF2 damage. It should be noted that the tornado
may not have been continuous along the the entire 12 mile path...with
damage more intermittent.
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