Post by NHC Olney Maryland on Sept 18, 2010 13:25:49 GMT -5
BULLETIN
HURRICANE IGOR INTERMEDIATE ADVISORY NUMBER 41A
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL/OLNEY MD AL112010
800 AM AST SAT SEP 18 2010
...LARGE HURRICANE IGOR EXPECTED TO APPROACH BERMUDA ON SUNDAY...
...CONDITIONS ARE EXPECTED TO DETERIORATE THIS EVENING...
SUMMARY OF 800 AM AST...1200 UTC...INFORMATION
----------------------------------------------
LOCATION...25.6N 63.2W
ABOUT 475 MI...765 KM S OF BERMUDA
MAXIMUM SUSTAINED WINDS...110 MPH...175 KM/HR
PRESENT MOVEMENT...NW OR 310 DEGREES AT 13 MPH...20 KM/HR
MINIMUM CENTRAL PRESSURE...939 MB...27.73 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...
NONE.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
A HURRICANE WARNING IS IN EFFECT FOR...
* BERMUDA
FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR
PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 800 AM AST...1200 UTC...THE CENTER OF HURRICANE IGOR WAS LOCATED
NEAR LATITUDE 25.6 NORTH...LONGITUDE 63.2 WEST. IGOR IS MOVING
TOWARD THE NORTHWEST NEAR 13 MPH...20 KM/HR. A TURN TOWARD THE
NORTH-NORTHWEST IS EXPECTED TODAY FOLLOWED BY A TURN TOWARD THE
NORTH ON SUNDAY. ON THE FORECAST TRACK...THE CENTER OF IGOR WILL
APPROACH BERMUDA LATE SUNDAY. HOWEVER...ADVERSE WEATHER CONDITIONS
WILL BEGIN TO AFFECT BERMUDA THIS EVENING.
MAXIMUM SUSTAINED WINDS REMAIN NEAR 110 MPH...175 KM/HR...WITH
HIGHER GUSTS. IGOR IS A CATEGORY TWO HURRICANE ON THE SAFFIR-
SIMPSON SCALE. SOME STRENGTHENING IS POSSIBLE TODAY...AND GRADUAL
WEAKENING IS EXPECTED TO BEGIN ON SUNDAY. HOWEVER...IGOR IS
EXPECTED TO REMAIN A DANGEROUS HURRICANE AS IT APPROACHES BERMUDA.
IGOR IS A VERY LARGE HURRICANE. HURRICANE FORCE WINDS EXTEND OUT
UP TO 105 MILES...165 KM...FROM THE CENTER...AND TROPICAL STORM
FORCE WINDS EXTEND OUT UP TO 345 MILES...555 KM. NOAA BUOY 41049
...LOCATED ABOUT 135 MILES...270 KM...NORTH OF THE CENTER OF IGOR
...RECENTLY REPORTED A SUSTAINED WIND OF 58 MPH...94 KM/HR...AND A
GUST OF 72 MPH...115 KM/HR.
THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 939 MB...27.73 INCHES.
HAZARDS AFFECTING LAND
----------------------
WIND...TROPICAL STORM CONDITIONS ARE EXPECTED IN BERMUDA BY THIS
EVENING...WITH HURRICANE CONDITIONS EXPECTED BY SUNDAY AFTERNOON OR
EVENING.
RAINFALL...IGOR IS EXPECTED TO PRODUCE TOTAL RAINFALL ACCUMULATIONS
OF 5 TO 8 INCHES OVER BERMUDA.
STORM SURGE...A DANGEROUS STORM SURGE IS EXPECTED TO PRODUCE
SIGNIFICANT COASTAL FLOODING ON BERMUDA. THE SURGE WILL BE
ACCOMPANIED BY LARGE AND DESTRUCTIVE WAVES...ESPECIALLY ALONG THE
SOUTHERN COAST.
SURF...LARGE SWELLS WILL CONTINUE TO AFFECT THE LEEWARD ISLANDS...
PUERTO RICO...THE VIRGIN ISLANDS...HISPANIOLA...AND PORTIONS OF THE
BAHAMAS DURING THE NEXT COUPLE OF DAYS. SWELLS WILL CONTINUE TO
AFFECT THE EAST COAST OF THE UNITED STATES THROUGH THE WEEKEND.
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 AM AST.
HURRICANE IGOR INTERMEDIATE ADVISORY NUMBER 41A
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL/OLNEY MD AL112010
800 AM AST SAT SEP 18 2010
...LARGE HURRICANE IGOR EXPECTED TO APPROACH BERMUDA ON SUNDAY...
...CONDITIONS ARE EXPECTED TO DETERIORATE THIS EVENING...
SUMMARY OF 800 AM AST...1200 UTC...INFORMATION
----------------------------------------------
LOCATION...25.6N 63.2W
ABOUT 475 MI...765 KM S OF BERMUDA
MAXIMUM SUSTAINED WINDS...110 MPH...175 KM/HR
PRESENT MOVEMENT...NW OR 310 DEGREES AT 13 MPH...20 KM/HR
MINIMUM CENTRAL PRESSURE...939 MB...27.73 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...
NONE.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
A HURRICANE WARNING IS IN EFFECT FOR...
* BERMUDA
FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR
PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 800 AM AST...1200 UTC...THE CENTER OF HURRICANE IGOR WAS LOCATED
NEAR LATITUDE 25.6 NORTH...LONGITUDE 63.2 WEST. IGOR IS MOVING
TOWARD THE NORTHWEST NEAR 13 MPH...20 KM/HR. A TURN TOWARD THE
NORTH-NORTHWEST IS EXPECTED TODAY FOLLOWED BY A TURN TOWARD THE
NORTH ON SUNDAY. ON THE FORECAST TRACK...THE CENTER OF IGOR WILL
APPROACH BERMUDA LATE SUNDAY. HOWEVER...ADVERSE WEATHER CONDITIONS
WILL BEGIN TO AFFECT BERMUDA THIS EVENING.
MAXIMUM SUSTAINED WINDS REMAIN NEAR 110 MPH...175 KM/HR...WITH
HIGHER GUSTS. IGOR IS A CATEGORY TWO HURRICANE ON THE SAFFIR-
SIMPSON SCALE. SOME STRENGTHENING IS POSSIBLE TODAY...AND GRADUAL
WEAKENING IS EXPECTED TO BEGIN ON SUNDAY. HOWEVER...IGOR IS
EXPECTED TO REMAIN A DANGEROUS HURRICANE AS IT APPROACHES BERMUDA.
IGOR IS A VERY LARGE HURRICANE. HURRICANE FORCE WINDS EXTEND OUT
UP TO 105 MILES...165 KM...FROM THE CENTER...AND TROPICAL STORM
FORCE WINDS EXTEND OUT UP TO 345 MILES...555 KM. NOAA BUOY 41049
...LOCATED ABOUT 135 MILES...270 KM...NORTH OF THE CENTER OF IGOR
...RECENTLY REPORTED A SUSTAINED WIND OF 58 MPH...94 KM/HR...AND A
GUST OF 72 MPH...115 KM/HR.
THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 939 MB...27.73 INCHES.
HAZARDS AFFECTING LAND
----------------------
WIND...TROPICAL STORM CONDITIONS ARE EXPECTED IN BERMUDA BY THIS
EVENING...WITH HURRICANE CONDITIONS EXPECTED BY SUNDAY AFTERNOON OR
EVENING.
RAINFALL...IGOR IS EXPECTED TO PRODUCE TOTAL RAINFALL ACCUMULATIONS
OF 5 TO 8 INCHES OVER BERMUDA.
STORM SURGE...A DANGEROUS STORM SURGE IS EXPECTED TO PRODUCE
SIGNIFICANT COASTAL FLOODING ON BERMUDA. THE SURGE WILL BE
ACCOMPANIED BY LARGE AND DESTRUCTIVE WAVES...ESPECIALLY ALONG THE
SOUTHERN COAST.
SURF...LARGE SWELLS WILL CONTINUE TO AFFECT THE LEEWARD ISLANDS...
PUERTO RICO...THE VIRGIN ISLANDS...HISPANIOLA...AND PORTIONS OF THE
BAHAMAS DURING THE NEXT COUPLE OF DAYS. SWELLS WILL CONTINUE TO
AFFECT THE EAST COAST OF THE UNITED STATES THROUGH THE WEEKEND.
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 AM AST.