Severe Weather - July 10, 2013

July 10, 2013
Microburst Confirmed Near Hilliard, OH

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PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
502 PM EDT THU JUL 11 2013

...MICROBURST /STRAIGHT LINE WIND DAMAGE/ CONFIRMED NEAR
3 SSE HILLIARD IN FRANKLIN COUNTY OHIO...

LOCATION...3 SSE HILLIARD IN FRANKLIN COUNTY OHIO
DATE... JULY 10 2013
ESTIMATED TIME...400 PM EDT
ESTIMATED MAXIMUM WIND SPEED...95 MPH
MAXIMUM PATH WIDTH...500 YARDS
PATH LENGTH...1/2 MILE 
BEGINNING LAT/LON...39.9894N / 83.1266W
ENDING LAT/LON...39.9883N / 83.1177W
* FATALITIES...0
* INJURIES...6

* THE INFORMATION IN THIS STATEMENT IS PRELIMINARY AND SUBJECT TO
CHANGE PENDING FINAL REVIEW OF THE EVENT(S) AND PUBLICATION IN NWS
STORM DATA.

...SUMMARY...
THE NATIONAL WEATHER SERVICE IN WILMINGTON OH HAS CONFIRMED A
MICROBURST /STRAIGHT LINE WIND DAMAGE/ NEAR 3 SSE HILLIARD IN
FRANKLIN COUNTY OHIO ON  JULY 10 2013.

A DAMAGE SURVEY WAS CONDUCTED BY THE NATIONAL WEATHER SERVICE
TODAY. INDICATIONS ARE THAT THE STORM WHICH PRODUCED DAMAGE IN
HILLIARD...OHIO LAST EVENING AT APPROXIMATELY 4 PM EDT WAS A
MICROBURST. THE DAMAGE TO AT LEAST 4 INDUSTRIAL/WAREHOUSE BUILDINGS
WAS SIGNIFICANT WITH AT LEAST SOME ROOF LOSS FOUND AT 2 TO 3
SITES AND MAJOR DAMAGE TO PARTS OF AT LEAST SEVERAL OF THE
BUILDINGS.

THE MICROBURST DETERMINATION WAS BASED ON THE DEBRIS PATTERN AND
SOME EYEWITNESS ACCOUNTS. THIS WAS A VERY HIGH END STRAIGHT LINE
WIND EVENT AND IN THESE EVENTS TURBULENCE AND SOME EDDIES OFTEN
DEVELOP.

FOR REFERENCE...
A MICROBURST IS A CONVECTIVE DOWNDRAFT WITH AN AFFECTED OUTFLOW AREA
OF LESS THAN 2 1/2 MILES WIDE AND PEAK WINDS LASTING LESS THAN
5 MINUTES. MICROBURSTS MAY INDUCE DANGEROUS HORIZONTAL/VERTICAL
WIND SHEARS...WHICH CAN ADVERSELY AFFECT AIRCRAFT PERFORMANCE AND
CAUSE PROPERTY DAMAGE. STRAIGHT-LINE WINDS ARE GENERALLY ANY WIND
THAT IS NOT ASSOCIATED WITH ROTATION...USED MAINLY TO DIFFERENTIATE
THEM FROM TORNADIC WINDS.

$$

Radar Images

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TCMH 0.1° Z - 3:55 PM	TCMH 0.1° v - 3:55 PM

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TCMH 0.1° Z - 4:04 PM	TCMH 0.1° v - 4:04 PM