Public Information Statement
Issued by NWS Newport/Morehead, NC

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NCZ029-044>047-079>081-090>095-098-103-104-250600-

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC
425 AM EDT SUN MAY 24 2015

...NORTH CAROLINA HURRICANE PREPAREDNESS WEEK FOR 2015...

THIS WEEK HAS BEEN DECLARED NORTH CAROLINA`S HURRICANE PREPAREDNESS
WEEK FOR 2015. ALL WEEK LONG THE NATIONAL WEATHER SERVICE WILL BE
ISSUING INFORMATIVE MESSAGES TO HELP YOU PREPARE FOR HURRICANE
SEASON.

EACH DAY WE WILL COVER A DIFFERENT TOPIC. TODAY WE WILL TALK ABOUT
HURRICANE BASICS.

HURRICANES NEED THE RIGHT INGREDIENTS IN ORDER TO FORM. THESE
INCLUDE WARM TROPICAL WATER...ATMOSPHERIC MOISTURE AND LIGHT WINDS
ALOFT. WHEN AREAS OF DISTURBED WEATHER IN THE ATMOSPHERE
EXPERIENCE THESE INGREDIENTS THEY CAN COMBINE TO PRODUCE TROPICAL
STORMS AND HURRICANES WITH VIOLENT WINDS...INCREDIBLE WAVES AND
TORRENTIAL RAINS.

EACH YEAR...AN AVERAGE OF TWELVE TROPICAL STORMS DEVELOP OVER THE
ATLANTIC OCEAN...CARIBBEAN SEA AND GULF OF MEXICO.
TYPICALLY...ABOUT SIX OF THESE STORMS WILL BECOME HURRICANES...
AND OF THOSE...THREE WILL BECOME MAJOR HURRICANES. IN AN AVERAGE
THREE YEAR PERIOD...THE U.S. COASTLINE FROM TEXAS TO MAINE WILL BE
STRUCK BY ROUGHLY FIVE HURRICANES. OF THESE HURRICANES...AT LEAST
TWO ARE USUALLY MAJOR HURRICANES...WITH WINDS IN EXCESS OF 110 MPH
...SIMILAR TO HURRICANE FRAN AND HUGO.

A HURRICANE IS A TYPE OF TROPICAL CYCLONE...WHICH IS A GENERIC
TERM FOR LOW PRESSURE SYSTEMS THAT DEVELOP OVER THE TROPICS.
TROPICAL CYCLONES ARE CLASSIFIED AS FOLLOWS...

TROPICAL DEPRESSIONS...DEPRESSIONS ARE ORGANIZED AREAS OF LOW
PRESSURE RESULTING IN A SYSTEM OF CLOUDS AND THUNDERSTORMS WITH A
DEFINED SURFACE CIRCULATION. TROPICAL DEPRESSIONS ARE DEFINED AS
HAVING MAXIMUM SUSTAINED WINDS OF 38 MPH OR LESS.

TROPICAL STORMS...TROPICAL STORMS ARE BETTER ORGANIZED SYSTEMS OF
STRONG THUNDERSTORMS WITH A DEFINED AREA OF LOW PRESSURE AND WINDS
OF 39-73 MPH.

HURRICANES...HURRICANES ARE INTENSE TROPICAL SYSTEMS WITH A WELL
DEFINED SURFACE CIRCULATION WITH MAXIMUM SUSTAINED WINDS OF 74 MPH
OR GREATER.

HURRICANES ARE CATEGORIZED ACCORDING TO THE STRENGTH OF THEIR
WINDS. A CATEGORY ONE STORM HAS THE LOWEST WIND SPEEDS...WHILE A
CATEGORY FIVE STORM HAS THE MOST EXTREME. THESE ARE RELATIVE
TERMS...BECAUSE LOWER CATEGORY STORMS CAN SOMETIMES INFLICT
GREATER DAMAGE THAN HIGHER CATEGORY STORMS...DEPENDING ON WHERE
THEY STRIKE AND THE PARTICULAR HAZARDS THEY BRING. FOR EXAMPLE
TROPICAL STORM ALLISON...WHILE ONLY A TROPICAL STORM...CAUSED OVER
6 BILLION DOLLARS IN DAMAGE DUE TO FLOODING IN EAST TEXAS. ALLISON
WAS THE COSTLIEST TROPICAL STORM IN HISTORY. HURRICANE
FLOYD...WHICH WAS A STRONGER HURRICANE...CAUSED SIMILAR DAMAGE IN
NORTH CAROLINA ON A MUCH LARGER SCALE.

$$


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