PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
210 PM CDT MON APR 14 2014

…NWS DAMAGE SURVEY FOR 04/13/14 TORNADO EVENT…

.OVERVIEW…A SEMI-ISOLATED STORM ON THE SOUTHERN END OF A LARGER THUNDERSTORM
COMPLEX PRODUCED A BRIEF TORNADO.

.LONE TREE TORNADO…

RATING: EF-0
ESTIMATED PEAK WIND: 65 MPH
PATH LENGTH /STATUTE/: 1 MILE
PATH WIDTH /MAXIMUM/: 25 YARDS
FATALITIES: 0
INJURIES: 0

START DATE: APRIL 13…2014
START TIME: 5:56 PM CDT
START LOCATION: .5 MILES WEST OF LONE TREE / JOHNSON COUNTY / IA
START LAT/LON: 41.4880 / -91.4437

END DATE: APRIL 13…2014
END TIME: 5:58 PM CDT
END LOCATION: .5 MILES NORTH OF LONE TREE / JOHNSON COUNTY / IA
END LAT/LON: 41.5039 / -91.4301

SURVEY SUMMARY: A TEAM FROM THE NATIONAL WEATHER SERVICE QUAD CITIES
FORECAST OFFICE SURVEYED THE AREA AROUND LONE TREE LATE THIS MORNING. NO
DAMAGE WAS FOUND. PATH IS ESTIMATED FROM WITNESSES AND RADAR. SEVERAL
WITNESSES DESCRIBED A FUNNEL THAT WENT UP AND DOWN NUMEROUS TIMES. PHOTO
AND VIDEO DOCUMENTATION SHOW THAT THE TORNADO DID TOUCH DOWN AT LEAST
BRIEFLY TO THE WEST AND NORTHWEST OF TOWN.

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 EVENT AND PUBLICATION IN NWS
STORM DATA.