Public Information Statement
Issued by NWS Portland, ME

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MEZ007>009-012>014-018>028-NHZ001>010-013-014-151200

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE GRAY ME
0726 AM EDT MON JUL 14 2014

THE NATIONAL WEATHER SERVICE HAS DECLARED THE WEEK OF JULY 14TH
THROUGH 18TH, HURRICANE AWARENESS WEEK IN NEW ENGLAND.  THIS IS THE
FIRST IN A SERIES OF FIVE PUBLIC INFORMATION STATEMENTS TO BE ISSUED
BY THE NATIONAL WEATHER SERVICE OFFICE IN GRAY, CONTAINING
INFORMATION ON HURRICANES AND HURRICANE SAFETY.


TROPICAL CYCLONES, TROPICAL STORMS AND HURRICANES--THE BASICS

THE TERM "TROPICAL CYCLONE" IS A GENERIC NAME GIVEN TO A LOW
PRESSURE SYSTEM THAT GENERALLY FORMS IN THE TROPICS AND IS
ACCOMPANIED BY SHOWERS AND THUNDERSTORMS AND A COUNTERCLOCKWISE WIND
CIRCULATION.  DEPENDING ON THE STRENGTH OF THE WINDS IN THE
CIRCULATION, TROPICAL CYCLONES ARE FURTHER DIVIDED INTO TROPICAL
DEPRESSIONS, TROPICAL STORMS, AND HURRICANES.

THE TROPICAL CYCLONES THAT AFFECT EASTERN NORTH AMERICA GENERALLY
FORM IN EITHER THE TROPICAL ATLANTIC OCEAN, THE CARIBBEAN SEA, OR IN
THE GULF OF MEXICO.  THE THREE MAIN CONDITIONS WHICH FAVOR TROPICAL
CYCLONE DEVELOPMENT ARE (1) WARM OCEAN WATERS, (2) ATMOSPHERIC
MOISTURE, AND (3) RELATIVELY LIGHT WINDS ALOFT.  IN ADDITION, AN
ATMOSPHERIC DISTURBANCE, CALLED A TROPICAL WAVE, IS NEEDED TO
INITIATE THE DEVELOPMENT THE COUNTER-CLOCKWISE WIND CIRCULATION.  IF
THE FAVORABLE CONDITIONS PERSIST FOR A SUFFICIENT AMOUNT OF TIME,
THE TROPICAL DISTURBANCE CAN STRENGTHEN TO A TROPICAL DEPRESSION,
TROPICAL STORM, OR HURRICANE.  WHEN THE WINDS IN A TROPICAL CYCLONE
REACH TROPICAL STORM STRENGTH (39 MPH, 34 KT), THE STORM IS
"NAMED".  TROPICAL CYCLONES ARE CLASSIFIED AS FOLLOWS:

TROPICAL DEPRESSION - AN ORGANIZED SYSTEM OF CLOUDS AND
THUNDERSTORMS WITH A DEFINED SURFACE CIRCULATION AND MAXIMUM
SUSTAINED WINDS OF 38 MPH (33 KNOTS) OR LESS.

TROPICAL STORM - AN ORGANIZED SYSTEM OF STRONG THUNDERSTORMS WITH
A DEFINED SURFACE CIRCULATION AND MAXIMUM SUSTAINED WINDS OF 39-73
MPH (34-63 KNOTS).



HURRICANE - AN INTENSE TROPICAL WEATHER SYSTEM OF STRONG
THUNDERSTORMS WITH A WELL-DEFINED SURFACE CIRCULATION AND MAXIMUM
SUSTAINED WINDS OF 74 MPH (64 KNOTS) OR HIGHER.  HURRICANES ARE
ALSO CLASSIFIED INTO DIFFERENT CATEGORIES BASED ON STRENGTH.

THE WELL-DEVELOPED HURRICANE CONSISTS OF AN EYE, AN EYEWALL, AND
SPIRAL BANDS OF SHOWERS AND THUNDERSTORMS.  IN THE EYE, WINDS ARE
RELATIVELY CALM AND THERE IS A GENTLE SINKING MOTION IN THE
ATMOSPHERE WHICH LEADS TO MOSTLY CLEAR SKIES.  SURROUNDING THE EYE
IS THE EYEWALL WHICH CONTAINS THE MOST VIOLENT WINDS, THE MOST
INTENSE SHOWERS AND THUNDERSTORMS, AND CAN CONTAIN TORNADOES.  THE
WINDS IN THE EYEWALL ALSO HAVE THE GREATEST POTENTIAL FOR CAUSING
A DEADLY STORM SURGE.  OUTSIDE THE EYEWALL, SPIRAL BANDS OF SHOWERS
AND THUNDERSTORMS ROTATE AROUND THE STORM.  THESE BANDS OF SHOWERS
AND THUNDERSTORMS CAN ALSO BE VERY INTENSE, CAN MOVE INTO AN AREA
VERY RAPIDLY, AND ARE THE MOST LIKELY AREA IN THE HURRICANE FOR
TORNADOES TO FORM.

HURRICANES AND TROPICAL STORMS BRING WITH THEM FOUR MAIN THREATS:
HIGH WINDS, COASTAL STORM SURGE, INLAND FRESH WATER FLOODING, AND
TORNADOES.  THESE WILL BE DISCUSSED IN GREATER DETAIL IN
FORTHCOMING STATEMENTS.

WHILE HURRICANE SEASON LASTS FROM JUNE THROUGH NOVEMBER, THE PEAK
OF THE SEASON IS FROM MID-AUGUST THROUGH OCTOBER.  EACH YEAR, AN
AVERAGE OF TEN TROPICAL STORMS DEVELOP OVER THE ATLANTIC OCEAN,
CARIBBEAN SEA, AND GULF OF MEXICO. MANY OF THESE STORMS REMAIN OVER
THE OCEAN, AND AN AVERAGE OF SIX OF THESE STORMS BECOME HURRICANES
EACH YEAR.  DURING AN AVERAGE 3-YEAR PERIOD, ROUGHLY FIVE
HURRICANES STRIKE THE UNITED STATES COASTLINE, KILLING
APPROXIMATELY 45 PEOPLE (AN AVERAGE OF 15.5 PER YEAR) ANYWHERE FROM
TEXAS TO MAINE. OF THESE, TWO ARE TYPICALLY "MAJOR" OR "INTENSE"
HURRICANES (WINDS GREATER THAN 110 MPH).


QUESTION OF THE DAY:  HOW ARE HURRICANES NAMED AND WHAT NAMES WILL
BE USED DURING 2014?

WOMEN`S NAMES WERE FIRST USED TO NAME TROPICAL STORMS AND HURRICANES
DURING WORLD WAR II, WITH SOME VARIATIONS IN PRACTICES IN THE EARLY
1950S. IN 1953, THE U.S. WEATHER BUREAU BEGAN USING A STANDARDIZED
LIST OF FEMALE NAMES IN NAMING ATLANTIC TROPICAL STORMS AND
HURRICANES. THE PRACTICE OF USING FEMALE NAMES EXCLUSIVELY ENDED
IN 1979 WHEN BOTH MALE AND FEMALE NAMES WERE INCLUDED IN LISTS FOR
THE ATLANTIC AND GULF OF MEXICO HURRICANE LISTS. THE NAME LISTS
ARE AGREED UPON AT INTERNATIONAL MEETINGS OF THE WORLD
METEOROLOGICAL ORGANIZATION.  THE NAMES ALTERNATE BETWEEN MALE AND
FEMALE NAMES, AND HAVE AN INTERNATIONAL FLAVOR BECAUSE HURRICANES
AFFECT OTHER NATIONS AND ARE TRACKED BY THE PUBLIC AND WEATHER
SERVICES OF MANY COUNTRIES.



THERE ARE CURRENTLY SIX LISTS OF NAMES USED IN NAMING HURRICANES;
A DIFFERENT LIST IS USED EACH YEAR.  THE LISTS ARE REPEATED IN
6-YEAR CYCLES.  HOWEVER, NAMES ASSOCIATED WITH STORMS THAT HAVE
CAUSED SIGNIFICANT DEATH AND/OR DAMAGE ARE USUALLY RETIRED FROM
THE LIST AND A REPLACEMENT NAME IS SELECTED BY THE WORLD
METEOROLOGICAL ORGANIZATION.

BELOW IS THE LIST OF NAMES THAT HAVE BEEN OR WILL BE USED FOR 2014.

ARTHUR     BERTHA     CRISTOBAL  DOLLY      EDOUARD    FAY
GONZALO    HANNA      ISAIAS     JOSEPHINE  KYLE       LAURA
MARCO      NANA       OMAR       PAULETTE   RENE       SALLY
TEDDY      VICKY      WILFRED

NOTE THAT THE LETTERS Q, U, X, Y, AND Z ARE NOT USED IN THE LIST
DUE TO THE SCARCITY OF NAMES BEGINNING WITH THOSE LETTERS.


FACT FOR THE DAY:  THE NAME HURRICANE IS DERIVED FROM THE CARIBBEAN
GOD OF EVIL, HURICAN. THE UNPREDICTABLE BEHAVIOR, HIGH SEAS, AND
DEVASTATING WINDS HAVE BEEN OUR NEMESIS FOR CENTURIES.


HERE`S A LIST OF TOPICS TO BE COVERED LATER THIS WEEK:

TUESDAY - HURRICANE WINDS AND TORNADOES
WEDNESDAY - STORM SURGE AND MARINE SAFETY
THURSDAY - INLAND FLOODING
FRIDAY - THE FORECAST PROCESS--STATEMENTS, WATCHES, AND WARNINGS

FOR ADDITIONAL INFORMATION ABOUT HURRICANES AND HURRICANE SAFETY,
VISIT THE NATIONAL HURRICANE CENTER`S WEB SITE AT:

               HTTP://WWW.NHC.NOAA.GOV/
$$


JENSENIUS
NATIONAL WEATHER SERVICE
GRAY...MAINE
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