Public Information Statement
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000 NOUS41 KBOX 201740 PNSBOX CTZ002>004-MAZ002>024-026-RIZ001>008-211500- PUBLIC INFORMATION STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 140 PM EDT MON JUL 20 2015 ...HURRICANE PREPAREDNESS WEEK IN SOUTHERN NEW ENGLAND... ...RULES OF THUMB FOR SOUTHERN NEW ENGLAND HURRICANES - PART 1... THE NATIONAL WEATHER SERVICE HAS DECLARED THIS WEEK AS HURRICANE PREPAREDNESS WEEK FOR SOUTHERN NEW ENGLAND. WE WILL BE ISSUING A SERIES OF FIVE STATEMENTS...THE FIRST THREE WITH RULES OF THUMB FOR NEW ENGLAND HURRICANES AND THE LAST TWO WITH PREPAREDNESS ACTIONS. THE FIRST RULE OF THUMB IS THIS...ANY TROPICAL SYSTEM WITH A NAME IN THE BAHAMAS HAS THE POTENTIAL TO QUICKLY BECOME OUR BUSINESS. THERE ARE TWO MAIN SOURCE REGIONS FOR NEW ENGLAND HURRICANES... THE CAPE VERDE ISLANDS OFF THE WEST COAST OF AFRICA AND THE BAHAMAS. THE CAPE VERDE STORMS CAN BECOME HUGE BECAUSE THEY HAVE A WEEK OR MORE TO TRAVEL ACROSS THE ATLANTIC...AND WE KNOW THEY ARE COMING WELL IN ADVANCE. BAHAMAS STORMS TEND TO BE SOMEWHAT SMALLER...BUT THEY CAN DEVELOP RAPIDLY AND IMPACT NEW ENGLAND VERY QUICKLY. IN MID-AUGUST 1991...A CLUSTER OF THUNDERSTORMS FORMED NEAR THE BAHAMAS ON A FRIDAY AFTERNOON WHEN MOST EMERGENCY MANAGERS WENT HOME FOR THE WEEKEND. IT WAS NOT EVEN A TROPICAL DEPRESSION YET...BUT IT QUICKLY DEVELOPED INTO MAJOR HURRICANE BOB THAT SATURDAY. BY MONDAY... BOB HAD WEAKENED TO A CATEGORY 2...BUT HAD ACCELERATED AND WAS IN FOR BREAKFAST AND OUT FOR DINNER...LIKE MANY NEW ENGLAND HURRICANES. SPEAKING OF ACCELERATION...THAT LEADS TO RULE OF THUMB NUMBER 2. DO NOT CONCENTRATE ON WHEN THE EYE IS GOING TO MAKE LANDFALL. IF YOU DO...YOU WILL BE TOO LATE WITH YOUR PREPARATIONS. OUR STORMS OFTEN ACCELERATE UP THE COAST AND WHEN THEY DO...BECOME VERY ASYMMETRIC. THE IMPORTANT EFFECTS OF THE STORM ARE SHUNTED WAY OUT AHEAD OF THE EYE. FOR EXAMPLE...EVEN THOUGH THE CENTER OF HURRICANE BOB WAS STILL OFF THE NORTH CAROLINA COAST...COASTAL ROADWAYS IN RHODE ISLAND WERE CLOSED 12 TO 14 HOURS IN ADVANCE DUE TO COASTAL FLOODING. THIS WAS ASSOCIATED WITH TROPICAL STORM FORCE WIND GUSTS IN THE OUTER RAIN BAND SQUALLS. AS ANOTHER EXAMPLE...THE EYE OF THE 1938 HURRICANE MOVED FROM CAPE HATTERAS NORTH CAROLINA TO NEW HAVEN CONNECTICUT IN 8 HOURS...AT TIMES RACING NORTH AROUND 60 MPH! UNLIKE MOST STORMS...THE 1938 HURRICANE DID NOT WEAKEN ON ITS WAY TOWARD SOUTHERN NEW ENGLAND DUE TO ITS RAPID FORWARD SPEED AND TRACK. SO...REMEMBER A NAMED TROPICAL CYCLONE IN THE BAHAMAS SHOULD BE MONITORED. YOUR SAFETY PREPARATIONS SHOULD BE COMPLETED...NOT STARTED...BY THE TIME THE STORM IS AT THE LATITUDE OF NORTH CAROLINA. DO NOT FOCUS ON WHEN THE EYE IS COMING ASHORE...BECAUSE NASTY WEATHER WILL BE OCCURRING 12 OR MORE HOURS IN ADVANCE OF THE EYE. STAY TUNED TOMORROW FOR MORE RULES OF THUMB FOR NEW ENGLAND HURRICANES. $$ FOR THE LATEST UPDATES...PLEASE VISIT OUR WEBPAGE AT WWW.WEATHER.GOV/BOSTON YOU CAN FOLLOW US ON FACEBOOK AT WWW.FACEBOOK.COM/NWSBOSTON YOU CAN FOLLOW US ON TWITTER AT @NWSBOSTON

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