Post by NHC Olney Maryland on Aug 30, 2010 11:01:14 GMT -5
BULLETIN
HURRICANE EARL INTERMEDIATE ADVISORY NUMBER 18A
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL/OLNEY MD AL072010
800 PM AST SUN AUG 29 2010
...EARL HEADING FOR NORTHERNMOST LEEWARD ISLANDS...
SUMMARY OF 800 PM AST...0000 UTC...INFORMATION
----------------------------------------------
LOCATION...17.7N 60.3W
ABOUT 100 MI...160 KM E OF BARBUDA
ABOUT 185 MI...300 KM E OF ST. MARTIN
MAXIMUM SUSTAINED WINDS...85 MPH...140 KM/HR
PRESENT MOVEMENT...WNW OR 285 DEGREES AT 14 MPH...22 KM/HR
MINIMUM CENTRAL PRESSURE...972 MB...28.70 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...
NONE.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
A HURRICANE WARNING IS IN EFFECT FOR...
* ANTIGUA...BARBUDA...MONTSERRAT...ST. KITTS...NEVIS...AND ANGUILLA
* SAINT MARTIN AND SAINT BARTHELEMY
* ST. MAARTEN...SABA...AND ST. EUSTATIUS
* BRITISH VIRGIN ISLANDS
A HURRICANE WATCH IS IN EFFECT FOR...
* U.S. VIRGIN ISLANDS
* PUERTO RICO INCLUDING THE ISLANDS OF CULEBRA AND VIEQUES
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* U.S. VIRGIN ISLANDS
* PUERTO RICO INCLUDING THE ISLANDS OF CULEBRA AND VIEQUES
HURRICANE CONDITIONS ARE EXPECTED WITHIN THE HURRICANE WARNING
AREA...IN THIS CASE WITHIN THE NEXT 12 TO 24 HOURS. PREPARATIONS
TO PROTECT LIFE AND PROPERTY SHOULD BE NEARING COMPLETION.
HURRICANE CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...IN THIS
CASE WITHIN THE NEXT 24 TO 36 HOURS.
FOR STORM INFORMATION SPECIFIC TO YOUR AREA IN THE UNITED
STATES...INCLUDING POSSIBLE INLAND WATCHES AND WARNINGS...PLEASE
MONITOR PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE
FORECAST OFFICE. FOR STORM INFORMATION SPECIFIC TO YOUR AREA OUTSIDE
THE UNITED STATES...PLEASE MONITOR PRODUCTS ISSUED BY YOUR NATIONAL
METEOROLOGICAL SERVICE.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 800 PM AST...0000 UTC...THE CENTER OF HURRICANE EARL WAS LOCATED
NEAR LATITUDE 17.7 NORTH...LONGITUDE 60.3 WEST. EARL IS MOVING
TOWARD THE WEST-NORTHWEST NEAR 14 MPH...22 KM/HR...AND THIS GENERAL
MOTION WITH SOME DECREASE IN FORWARD SPEED IS EXPECTED DURING THE
NEXT DAY OR SO. A TURN TOWARD THE NORTHWEST IS FORECAST MONDAY
NIGHT OR TUESDAY. ON THE FORECAST TRACK...THE CENTER OF EARL WILL
PASS NEAR OR OVER THE NORTHERNMOST LEEWARD ISLANDS TONIGHT AND
MONDAY.
MAXIMUM SUSTAINED WINDS ARE NEAR 85 MPH...140 KM/HR...WITH HIGHER
GUSTS. EARL IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON
HURRICANE WIND SCALE. ADDITIONAL STRENGTHENING IS EXPECTED DURING
THE NEXT 48 HOURS AND EARL IS FORECAST TO BECOME A MAJOR HURRICANE
ON MONDAY.
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 45 MILES...75 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 175
MILES...280 KM.
THE MINIMUM CENTRAL PRESSURE REPORTED BY AN AIR FORCE RESERVE UNIT
HURRICANE HUNTER PLANE IS 972 MB...28.70 INCHES.
HAZARDS AFFECTING LAND
----------------------
WIND...TROPICAL STORM CONDITIONS WILL BEGIN TO SPREAD INTO THE
HURRICANE WARNING AREA DURING THE NEXT FEW HOURS...AND HURRICANE
CONDITIONS ARE EXPECTED TO SPREAD INTO THE HURRICANE WARNING AREA
BY MONDAY. TROPICAL STORM CONDITIONS ARE EXPECTED TO SPREAD OVER
THE U.S. VIRGIN ISLANDS AND PUERTO RICO ON MONDAY...WITH HURRICANE
CONDITIONS POSSIBLE MONDAY NIGHT.
STORM SURGE...STORM SURGE WILL RAISE WATER LEVELS BY AS MUCH AS 2
TO 4 FEET ABOVE GROUND LEVEL PRIMARILY NEAR THE COAST IN AREAS OF
ONSHORE WIND WITHIN THE HURRICANE WARNING AREA...AND 1 TO 3 FEET IN
THE TROPICAL STORM WARNING AREA. THE SURGE WILL BE ACCOMPANIED BY
LARGE AND DANGEROUS BATTERING WAVES.
RAINFALL...EARL IS EXPECTED TO PRODUCE TOTAL RAINFALL ACCUMULATIONS
OF 3 TO 5 INCHES OVER MUCH OF THE NORTHERN LEEWARD ISLANDS...WITH
POSSIBLE ISOLATED MAXIMUM AMOUNTS OF 8 INCHES. RAIN ACCUMULATIONS
OF 4 TO 6 INCHES ARE EXPECTED OVER PUERTO RICO...WITH ISOLATED
MAXIMUM AMOUNTS OF 12 INCHES POSSIBLE OVER HIGHER ELEVATIONS. THESE
RAINS COULD CAUSE LIFE-THREATENING FLASH FLOODS AND MUDSLIDES.
NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...1100 PM AST.
HURRICANE EARL INTERMEDIATE ADVISORY NUMBER 18A
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL/OLNEY MD AL072010
800 PM AST SUN AUG 29 2010
...EARL HEADING FOR NORTHERNMOST LEEWARD ISLANDS...
SUMMARY OF 800 PM AST...0000 UTC...INFORMATION
----------------------------------------------
LOCATION...17.7N 60.3W
ABOUT 100 MI...160 KM E OF BARBUDA
ABOUT 185 MI...300 KM E OF ST. MARTIN
MAXIMUM SUSTAINED WINDS...85 MPH...140 KM/HR
PRESENT MOVEMENT...WNW OR 285 DEGREES AT 14 MPH...22 KM/HR
MINIMUM CENTRAL PRESSURE...972 MB...28.70 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...
NONE.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
A HURRICANE WARNING IS IN EFFECT FOR...
* ANTIGUA...BARBUDA...MONTSERRAT...ST. KITTS...NEVIS...AND ANGUILLA
* SAINT MARTIN AND SAINT BARTHELEMY
* ST. MAARTEN...SABA...AND ST. EUSTATIUS
* BRITISH VIRGIN ISLANDS
A HURRICANE WATCH IS IN EFFECT FOR...
* U.S. VIRGIN ISLANDS
* PUERTO RICO INCLUDING THE ISLANDS OF CULEBRA AND VIEQUES
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* U.S. VIRGIN ISLANDS
* PUERTO RICO INCLUDING THE ISLANDS OF CULEBRA AND VIEQUES
HURRICANE CONDITIONS ARE EXPECTED WITHIN THE HURRICANE WARNING
AREA...IN THIS CASE WITHIN THE NEXT 12 TO 24 HOURS. PREPARATIONS
TO PROTECT LIFE AND PROPERTY SHOULD BE NEARING COMPLETION.
HURRICANE CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...IN THIS
CASE WITHIN THE NEXT 24 TO 36 HOURS.
FOR STORM INFORMATION SPECIFIC TO YOUR AREA IN THE UNITED
STATES...INCLUDING POSSIBLE INLAND WATCHES AND WARNINGS...PLEASE
MONITOR PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE
FORECAST OFFICE. FOR STORM INFORMATION SPECIFIC TO YOUR AREA OUTSIDE
THE UNITED STATES...PLEASE MONITOR PRODUCTS ISSUED BY YOUR NATIONAL
METEOROLOGICAL SERVICE.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 800 PM AST...0000 UTC...THE CENTER OF HURRICANE EARL WAS LOCATED
NEAR LATITUDE 17.7 NORTH...LONGITUDE 60.3 WEST. EARL IS MOVING
TOWARD THE WEST-NORTHWEST NEAR 14 MPH...22 KM/HR...AND THIS GENERAL
MOTION WITH SOME DECREASE IN FORWARD SPEED IS EXPECTED DURING THE
NEXT DAY OR SO. A TURN TOWARD THE NORTHWEST IS FORECAST MONDAY
NIGHT OR TUESDAY. ON THE FORECAST TRACK...THE CENTER OF EARL WILL
PASS NEAR OR OVER THE NORTHERNMOST LEEWARD ISLANDS TONIGHT AND
MONDAY.
MAXIMUM SUSTAINED WINDS ARE NEAR 85 MPH...140 KM/HR...WITH HIGHER
GUSTS. EARL IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON
HURRICANE WIND SCALE. ADDITIONAL STRENGTHENING IS EXPECTED DURING
THE NEXT 48 HOURS AND EARL IS FORECAST TO BECOME A MAJOR HURRICANE
ON MONDAY.
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 45 MILES...75 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 175
MILES...280 KM.
THE MINIMUM CENTRAL PRESSURE REPORTED BY AN AIR FORCE RESERVE UNIT
HURRICANE HUNTER PLANE IS 972 MB...28.70 INCHES.
HAZARDS AFFECTING LAND
----------------------
WIND...TROPICAL STORM CONDITIONS WILL BEGIN TO SPREAD INTO THE
HURRICANE WARNING AREA DURING THE NEXT FEW HOURS...AND HURRICANE
CONDITIONS ARE EXPECTED TO SPREAD INTO THE HURRICANE WARNING AREA
BY MONDAY. TROPICAL STORM CONDITIONS ARE EXPECTED TO SPREAD OVER
THE U.S. VIRGIN ISLANDS AND PUERTO RICO ON MONDAY...WITH HURRICANE
CONDITIONS POSSIBLE MONDAY NIGHT.
STORM SURGE...STORM SURGE WILL RAISE WATER LEVELS BY AS MUCH AS 2
TO 4 FEET ABOVE GROUND LEVEL PRIMARILY NEAR THE COAST IN AREAS OF
ONSHORE WIND WITHIN THE HURRICANE WARNING AREA...AND 1 TO 3 FEET IN
THE TROPICAL STORM WARNING AREA. THE SURGE WILL BE ACCOMPANIED BY
LARGE AND DANGEROUS BATTERING WAVES.
RAINFALL...EARL IS EXPECTED TO PRODUCE TOTAL RAINFALL ACCUMULATIONS
OF 3 TO 5 INCHES OVER MUCH OF THE NORTHERN LEEWARD ISLANDS...WITH
POSSIBLE ISOLATED MAXIMUM AMOUNTS OF 8 INCHES. RAIN ACCUMULATIONS
OF 4 TO 6 INCHES ARE EXPECTED OVER PUERTO RICO...WITH ISOLATED
MAXIMUM AMOUNTS OF 12 INCHES POSSIBLE OVER HIGHER ELEVATIONS. THESE
RAINS COULD CAUSE LIFE-THREATENING FLASH FLOODS AND MUDSLIDES.
NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...1100 PM AST.