Public Information Statement
Issued by NWS Raleigh/Durham, NC

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NOUS42 KRAH 291632
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NCZ007>011-021>028-038>043-073>078-083>086-088-089-292045-

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
1232 PM EDT FRI APR 29 2016

...MICROBURST/STRAIGHT LINE WIND DAMAGE ON APRIL 28, 2016...

NUMEROUS OCCURRENCES OF MICROBURST/STRAIGHT LINE WIND DAMAGE WERE
NOTED ACROSS CENTRAL NORTH CAROLINA FROM THE SEVERE STORMS THAT
MOVED THROUGH THE AREA DURING THE AFTERNOON AND EVENING OF APRIL
28, 2016. WHILE MID-LEVEL ROTATION WAS NOTED WITH SEVERAL OF THE
LARGE HAIL-PRODUCING STORMS...NWS RALEIGH DOPPLER RADAR DID NOT
INDICATE ANY LOW LEVEL ROTATION WITH THE STORM CELLS THAT CAUSED
THE VARIOUS OCCURRENCES OF WIND DAMAGE. IN ADDITION, EYEWITNESS
DESCRIPTIONS AND PHOTOS ALSO SUPPORT THE DETERMINATION THAT
MICROBURST/STRAIGHT LINE WIND WAS THE CAUSE OF THE WIND DAMAGE
THAT OCCURRED ACROSS OUR AREA. AS SUCH...AT THIS TIME...NWS
RALEIGH STAFF ARE NOT PLANNING TO CONDUCT STORM SURVEYS RELATED TO
THIS EVENT.

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 AND 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.

$$

PETRO


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