Public Information Statement
Issued by NWS Caribou, ME

Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

000
NOUS41 KCAR 141609
PNSCAR

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE CARIBOU ME
1209 PM EDT MON JUL 14 2014

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

THE BASICS: TROPICAL CYCLONES, TROPICAL STORMS, AND HURRICANES

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, ALONG WITH A
COUNTER-CLOCKWISE 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 THE TROPICAL ATLANTIC OCEAN, THE CARIBBEAN SEA, OR  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 OF THE COUNTER-CLOCKWISE WIND CIRCULATION. IF THE
FAVORABLE CONDITIONS PERSIST FOR A SUFFICIENT AMOUNT OF TIME, THE
TROPICAL DISTURBANCE CAN STRENGTHEN INTO 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 GIVEN A
NAME. 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 KT) 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 KT).

  * HURRICANE - AN INTENSE TROPICAL WEATHER SYSTEM OF STRONG
    THUNDERSTORMS WITH A WELL-DEFINED SURFACE CIRCULATION AND
    MAXIMUM SUSTAINED WINDS OF 74 MPH (64 KT) OR HIGHER. HURRICANES
    ARE ALSO CLASSIFIED INTO DIFFERENT CATEGORIES BASED ON STRENGTH.
    THIS WILL BE DISCUSSED FURTHER LATER IN THE WEEK.

A WELL-DEVELOPED HURRICANE CONSISTS OF AN EYE, AN EYEWALL, AND
SPIRAL BANDS OF SHOWERS AND THUNDERSTORMS. IN THE EYE, THERE IS A
GENTLE SINKING MOTION IN THE ATMOSPHERE. THIS LEADS TO RELATIVELY
CALM WINDS AND 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 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 FRESHWATER FLOODING, AND
TORNADOES. THESE WILL BE DISCUSSED IN GREATER DETAIL LATER THIS WEEK.

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,
WITH AN AVERAGE OF 6 BECOMING HURRICANES EACH YEAR. DURING AN
AVERAGE THREE-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 CONTAINING 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 STORMS. THE NAME LISTS ARE AGREED UPON
AT INTERNATIONAL MEETINGS OF THE WORLD METEOROLOGICAL ORGANIZATION.
THE NAMES ALTERNATE BETWEEN MALE AND FEMALE. THEY 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 SIX-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.

HERE 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.
THIS IS 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 (ALL LOWER-CASE):

HTTP://WWW.NHC.NOAA.GOV

$$

HASTINGS







USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.