Post by NHC Olney Maryland on Sept 21, 2010 14:47:00 GMT -5
BULLETIN
HURRICANE IGOR INTERMEDIATE ADVISORY NUMBER 54A
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL/OLNEY MD AL112010
200 PM AST TUE SEP 21 2010
...IGOR PRODUCING GUSTS TO HURRICANE FORCE OVER PORTIONS OF
NEWFOUNDLAND...
SUMMARY OF 200 PM AST...1800 UTC...INFORMATION
----------------------------------------------
LOCATION...48.5N 52.0W
ABOUT 75 MI...120 KM NNE OF ST. JOHNS NEWFOUNDLAND
MAXIMUM SUSTAINED WINDS...80 MPH...130 KM/HR
PRESENT MOVEMENT...NE OR 35 DEGREES AT 46 MPH...74 KM/HR
MINIMUM CENTRAL PRESSURE...950 MB...28.05 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...
NONE.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
A HURRICANE WATCH IS IN EFFECT FOR...
* THE COAST OF NEWFOUNDLAND FROM STONES COVE NORTHWARD AND EASTWARD
TO FOGO ISLAND
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* THE COAST OF NEWFOUNDLAND FROM BURGEO NORTHWARD AND EASTWARD
TO TRITON
* THE ISLANDS OF ST-PIERRE AND MIQUELON
A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE
WITHIN THE WATCH AREA WITHIN...IN THIS CASE WITHIN THE NEXT 6 TO
12 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 200 PM AST...1800 UTC...THE CENTER OF HURRICANE IGOR WAS LOCATED
NEAR LATITUDE 48.5 NORTH...LONGITUDE 52.0 WEST. IGOR IS MOVING
RAPIDLY TOWARD THE NORTHEAST NEAR 46 MPH...74 KM/HR. A TURN TOWARD
THE NORTH-NORTHEAST AND NORTH WITH A DECREASE IN FORWARD SPEED IS
EXPECTED TONIGHT AND EARLY WEDNESDAY. THE CYCLONE IS THEN EXPECTED
TO TURN TOWARD THE NORTH-NORTHWEST AND NORTHWEST WITH AN ADDITIONAL
DECREASE IN FORWARD SPEED WEDNESDAY NIGHT AND EARLY THURSDAY. ON
THIS TRACK...THE CENTER OF IGOR WILL CONTINUE TO MOVE AWAY FROM THE
ISLAND OF NEWFOUNDLAND.
SURFACE OBSERVATIONS FROM CANADA INDICATE THAT MAXIMUM SUSTAINED
WINDS ARE NEAR 80 MPH...130 KM/HR...WITH HIGHER GUSTS. IGOR IS A
CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON HURRICANE WIND SCALE.
IGOR IS EXPECTED TO BECOME AN INTENSE EXTRATROPICAL CYCLONE LATER
TODAY. BONAVISTA NEWFOUNDLAND RECENTLY REPORTED A SUSTAINED WIND
OF 73 MPH...117 KM/HR...AND A GUST TO 90 MPH...144 KM/HR.
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 85 MILES...140 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO
460 MILES...740 KM.
ESTIMATED MINIMUM CENTRAL PRESSURE IS 950 MB...28.05 INCHES.
HAZARDS AFFECTING LAND
----------------------
WIND...WINDS OF TROPICAL STORM FORCE AND VERY NEAR HURRICANE
FORCE...ESPECIALLY IN GUSTS...ARE BEING REPORTED IN NEWFOUNDLAND.
THESE WINDS WILL LIKELY DIMINISH LATER TODAY AS IGOR MOVES FARTHER
TO THE NORTH.
RAINFALL...THE HEAVY RAINFALL THREAT ASSOCIATED WITH IGOR WILL BE
COMING TO AN END ACROSS NEWFOUNDLAND THIS AFTERNOON AS THE STORM
MOVES RAPIDLY NORTHEASTWARD. ADDITIONAL RAINFALL ACCUMULATIONS OF
1 TO 3 INCHES ARE POSSIBLE OVER EASTERN NEWFOUNDLAND...WITH STORM
TOTAL ACCUMULATIONS OF 4 TO 8 INCHES POSSIBLE.
SURF...LARGE SWELLS WILL CONTINUE TO AFFECT THE EAST COAST OF THE
UNITED STATES THROUGH TODAY 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...500 PM AST.
HURRICANE IGOR INTERMEDIATE ADVISORY NUMBER 54A
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL/OLNEY MD AL112010
200 PM AST TUE SEP 21 2010
...IGOR PRODUCING GUSTS TO HURRICANE FORCE OVER PORTIONS OF
NEWFOUNDLAND...
SUMMARY OF 200 PM AST...1800 UTC...INFORMATION
----------------------------------------------
LOCATION...48.5N 52.0W
ABOUT 75 MI...120 KM NNE OF ST. JOHNS NEWFOUNDLAND
MAXIMUM SUSTAINED WINDS...80 MPH...130 KM/HR
PRESENT MOVEMENT...NE OR 35 DEGREES AT 46 MPH...74 KM/HR
MINIMUM CENTRAL PRESSURE...950 MB...28.05 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...
NONE.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
A HURRICANE WATCH IS IN EFFECT FOR...
* THE COAST OF NEWFOUNDLAND FROM STONES COVE NORTHWARD AND EASTWARD
TO FOGO ISLAND
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* THE COAST OF NEWFOUNDLAND FROM BURGEO NORTHWARD AND EASTWARD
TO TRITON
* THE ISLANDS OF ST-PIERRE AND MIQUELON
A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE
WITHIN THE WATCH AREA WITHIN...IN THIS CASE WITHIN THE NEXT 6 TO
12 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 200 PM AST...1800 UTC...THE CENTER OF HURRICANE IGOR WAS LOCATED
NEAR LATITUDE 48.5 NORTH...LONGITUDE 52.0 WEST. IGOR IS MOVING
RAPIDLY TOWARD THE NORTHEAST NEAR 46 MPH...74 KM/HR. A TURN TOWARD
THE NORTH-NORTHEAST AND NORTH WITH A DECREASE IN FORWARD SPEED IS
EXPECTED TONIGHT AND EARLY WEDNESDAY. THE CYCLONE IS THEN EXPECTED
TO TURN TOWARD THE NORTH-NORTHWEST AND NORTHWEST WITH AN ADDITIONAL
DECREASE IN FORWARD SPEED WEDNESDAY NIGHT AND EARLY THURSDAY. ON
THIS TRACK...THE CENTER OF IGOR WILL CONTINUE TO MOVE AWAY FROM THE
ISLAND OF NEWFOUNDLAND.
SURFACE OBSERVATIONS FROM CANADA INDICATE THAT MAXIMUM SUSTAINED
WINDS ARE NEAR 80 MPH...130 KM/HR...WITH HIGHER GUSTS. IGOR IS A
CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON HURRICANE WIND SCALE.
IGOR IS EXPECTED TO BECOME AN INTENSE EXTRATROPICAL CYCLONE LATER
TODAY. BONAVISTA NEWFOUNDLAND RECENTLY REPORTED A SUSTAINED WIND
OF 73 MPH...117 KM/HR...AND A GUST TO 90 MPH...144 KM/HR.
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 85 MILES...140 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO
460 MILES...740 KM.
ESTIMATED MINIMUM CENTRAL PRESSURE IS 950 MB...28.05 INCHES.
HAZARDS AFFECTING LAND
----------------------
WIND...WINDS OF TROPICAL STORM FORCE AND VERY NEAR HURRICANE
FORCE...ESPECIALLY IN GUSTS...ARE BEING REPORTED IN NEWFOUNDLAND.
THESE WINDS WILL LIKELY DIMINISH LATER TODAY AS IGOR MOVES FARTHER
TO THE NORTH.
RAINFALL...THE HEAVY RAINFALL THREAT ASSOCIATED WITH IGOR WILL BE
COMING TO AN END ACROSS NEWFOUNDLAND THIS AFTERNOON AS THE STORM
MOVES RAPIDLY NORTHEASTWARD. ADDITIONAL RAINFALL ACCUMULATIONS OF
1 TO 3 INCHES ARE POSSIBLE OVER EASTERN NEWFOUNDLAND...WITH STORM
TOTAL ACCUMULATIONS OF 4 TO 8 INCHES POSSIBLE.
SURF...LARGE SWELLS WILL CONTINUE TO AFFECT THE EAST COAST OF THE
UNITED STATES THROUGH TODAY 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...500 PM AST.