Post by NHC Olney Maryland on Sept 20, 2010 18:55:18 GMT -5
BULLETIN
HURRICANE IGOR INTERMEDIATE ADVISORY NUMBER 51A
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL/OLNEY MD AL112010
800 PM AST MON SEP 20 2010
...IGOR SOON TO BE EXTRATROPICAL...HEADED TOWARD NEWFOUNDLAND...
SUMMARY OF 800 PM AST...0000 UTC...INFORMATION
----------------------------------------------
LOCATION...39.0N 60.5W
ABOUT 650 MI...1045 KM SW OF CAPE RACE NEWFOUNDLAND
MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/HR
PRESENT MOVEMENT...NE OR 45 DEGREES AT 29 MPH...46 KM/HR
MINIMUM CENTRAL PRESSURE...968 MB...28.59 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...
THE GOVERNMENT OF FRANCE EARLIER ISSUED A TROPICAL STORM WARNING FOR
THE FRENCH ISLANDS OF ST-PIERRE AND MIQUELON...LOCATED JUST TO THE
SOUTH OF NEWFOUNDLAND.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* THE COAST OF NEWFOUNDLAND FROM STONES COVE NORTHWARD AND WESTWARD
TO CHARLOTTETOWN
* THE ISLANDS OF ST-PIERRE AND MIQUELON
A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED SOMEWHERE WITHIN THE WARNING AREA...IN THIS CASE WITHIN THE
NEXT 24 HOURS.
FOR STORM INFORMATION SPECIFIC TO YOUR AREA IN THE UNITED
STATES....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 IGOR WAS LOCATED
NEAR LATITUDE 39.0 NORTH...LONGITUDE 60.5 WEST. IGOR IS MOVING
TOWARD THE NORTHEAST NEAR 29 MPH...46 KM/HR...AND THIS GENERAL
MOTION IS EXPECTED TO CONTINUE THROUGH TUESDAY. A TURN TOWARD THE
NORTH-NORTHEAST AND NORTH WITH A DECREASE IN FORWARD SPEED IS
EXPECTED ON TUESDAY NIGHT AND WEDNESDAY. ON THE FORECAST TRACK...
THE CENTER OF THE CYCLONE WILL MOVE NEAR THE SOUTHEASTERN TIP OF
NEWFOUNDLAND ON TUESDAY.
MAXIMUM SUSTAINED WINDS REMAIN NEAR 75 MPH...120 KM/HR...WITH HIGHER
GUSTS. IGOR IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON
HURRICANE WIND SCALE. SOME STRENGTHENING IS POSSIBLE...AND IGOR IS
EXPECTED TO BECOME AN INTENSE EXTRATROPICAL CYCLONE IN A DAY OR SO.
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 85 MILES...140 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 380
MILES...610 KM.
ESTIMATED MINIMUM CENTRAL PRESSURE IS 968 MB...28.59 INCHES.
HAZARDS AFFECTING LAND
----------------------
RAINFALL...IGOR IS EXPECTED TO PRODUCE TOTAL RAIN ACCUMULATIONS OF 4
TO 8 INCHES PRIMARILY OVER THE EASTERN HALF OF NEWFOUNDLAND...WITH
ISOLATED AMOUNTS OF 10 INCHES POSSIBLE.
SURF...LARGE SWELLS WILL CONTINUE TO AFFECT THE EAST COAST OF THE
UNITED STATES THROUGH TUESDAY AND THE SOUTH-FACING COASTLINES OF
NOVA SCOTIA AND NEWFOUNDLAND FOR THE NEXT FEW DAYS. SWELLS WILL BE
SLOW TO SUBSIDE IN PUERTO RICO...THE VIRGIN ISLANDS...HISPANIOLA...
AND PORTIONS OF THE BAHAMAS DURING THE NEXT COUPLE OF DAYS. THESE
SWELLS ARE LIKELY TO CAUSE LIFE-THREATENING SURF AND RIP CURRENTS.
PLEASE CONSULT PRODUCTS FROM YOUR LOCAL WEATHER OFFICE FOR
ADDITIONAL INFORMATION.
NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...1100 PM AST.
HURRICANE IGOR INTERMEDIATE ADVISORY NUMBER 51A
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL/OLNEY MD AL112010
800 PM AST MON SEP 20 2010
...IGOR SOON TO BE EXTRATROPICAL...HEADED TOWARD NEWFOUNDLAND...
SUMMARY OF 800 PM AST...0000 UTC...INFORMATION
----------------------------------------------
LOCATION...39.0N 60.5W
ABOUT 650 MI...1045 KM SW OF CAPE RACE NEWFOUNDLAND
MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/HR
PRESENT MOVEMENT...NE OR 45 DEGREES AT 29 MPH...46 KM/HR
MINIMUM CENTRAL PRESSURE...968 MB...28.59 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...
THE GOVERNMENT OF FRANCE EARLIER ISSUED A TROPICAL STORM WARNING FOR
THE FRENCH ISLANDS OF ST-PIERRE AND MIQUELON...LOCATED JUST TO THE
SOUTH OF NEWFOUNDLAND.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* THE COAST OF NEWFOUNDLAND FROM STONES COVE NORTHWARD AND WESTWARD
TO CHARLOTTETOWN
* THE ISLANDS OF ST-PIERRE AND MIQUELON
A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED SOMEWHERE WITHIN THE WARNING AREA...IN THIS CASE WITHIN THE
NEXT 24 HOURS.
FOR STORM INFORMATION SPECIFIC TO YOUR AREA IN THE UNITED
STATES....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 IGOR WAS LOCATED
NEAR LATITUDE 39.0 NORTH...LONGITUDE 60.5 WEST. IGOR IS MOVING
TOWARD THE NORTHEAST NEAR 29 MPH...46 KM/HR...AND THIS GENERAL
MOTION IS EXPECTED TO CONTINUE THROUGH TUESDAY. A TURN TOWARD THE
NORTH-NORTHEAST AND NORTH WITH A DECREASE IN FORWARD SPEED IS
EXPECTED ON TUESDAY NIGHT AND WEDNESDAY. ON THE FORECAST TRACK...
THE CENTER OF THE CYCLONE WILL MOVE NEAR THE SOUTHEASTERN TIP OF
NEWFOUNDLAND ON TUESDAY.
MAXIMUM SUSTAINED WINDS REMAIN NEAR 75 MPH...120 KM/HR...WITH HIGHER
GUSTS. IGOR IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON
HURRICANE WIND SCALE. SOME STRENGTHENING IS POSSIBLE...AND IGOR IS
EXPECTED TO BECOME AN INTENSE EXTRATROPICAL CYCLONE IN A DAY OR SO.
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 85 MILES...140 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 380
MILES...610 KM.
ESTIMATED MINIMUM CENTRAL PRESSURE IS 968 MB...28.59 INCHES.
HAZARDS AFFECTING LAND
----------------------
RAINFALL...IGOR IS EXPECTED TO PRODUCE TOTAL RAIN ACCUMULATIONS OF 4
TO 8 INCHES PRIMARILY OVER THE EASTERN HALF OF NEWFOUNDLAND...WITH
ISOLATED AMOUNTS OF 10 INCHES POSSIBLE.
SURF...LARGE SWELLS WILL CONTINUE TO AFFECT THE EAST COAST OF THE
UNITED STATES THROUGH TUESDAY AND THE SOUTH-FACING COASTLINES OF
NOVA SCOTIA AND NEWFOUNDLAND FOR THE NEXT FEW DAYS. SWELLS WILL BE
SLOW TO SUBSIDE IN PUERTO RICO...THE VIRGIN ISLANDS...HISPANIOLA...
AND PORTIONS OF THE BAHAMAS DURING THE NEXT COUPLE OF DAYS. THESE
SWELLS ARE LIKELY TO CAUSE LIFE-THREATENING SURF AND RIP CURRENTS.
PLEASE CONSULT PRODUCTS FROM YOUR LOCAL WEATHER OFFICE FOR
ADDITIONAL INFORMATION.
NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...1100 PM AST.