Post by Nws Olney Maryland on Sept 7, 2011 11:12:44 GMT -5
BULLETIN
HURRICANE KATIA INTERMEDIATE ADVISORY NUMBER 37A
NWS NATIONAL HURRICANE CENTER MIAMI FL AL122011
800 AM AST WED SEP 07 2011
...KATIA CONTINUES NORTHWESTWARD...
SUMMARY OF 800 AM AST...1200 UTC...INFORMATION
----------------------------------------------
LOCATION...29.0N 68.4W
ABOUT 310 MI...500 KM SW OF BERMUDA
MAXIMUM SUSTAINED WINDS...90 MPH...150 KM/H
PRESENT MOVEMENT...NW OR 315 DEGREES AT 10 MPH...17 KM/H
MINIMUM CENTRAL PRESSURE...973 MB...28.73 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...
NONE.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
A TROPICAL STORM WATCH IS IN EFFECT FOR...
* BERMUDA
FOR ADDITIONAL STORM INFORMATION...PLEASE MONITOR PRODUCTS ISSUED BY
THE BERMUDA WEATHER SERVICE.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 800 AM AST...1200 UTC...THE CENTER OF HURRICANE KATIA WAS LOCATED
NEAR LATITUDE 29.0 NORTH...LONGITUDE 68.4 WEST. KATIA IS MOVING
TOWARD THE NORTHWEST NEAR 10 MPH...17 KM/H. A TURN TOWARD THE
NORTH-NORTHWEST IS EXPECTED LATER TODAY...FOLLOWED BY A TURN TOWARD
THE NORTH AND THEN THE NORTH-NORTHEAST WITH AN INCREASE IN FORWARD
SPEED LATE THURSDAY AND EARLY FRIDAY. ON THE FORECAST TRACK...THE
CORE OF KATIA IS EXPECTED TO MOVE BETWEEN THE EAST COAST OF THE
UNITED STATES AND BERMUDA TONIGHT AND THURSDAY.
MAXIMUM SUSTAINED WINDS REMAIN NEAR 90 MPH...150 KM/H...WITH HIGHER
GUSTS. KATIA IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON
HURRICANE WIND SCALE. LITTLE CHANGE IN STRENGTH IS FORECAST
TODAY...FOLLOWED BY GRADUAL WEAKENING ON THURSDAY.
HURRICANE-FORCE WINDS EXTEND OUTWARD UP TO 70 MILES...110 KM...FROM
THE CENTER...AND TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO
205 MILES...335 KM.
THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 973 MB...28.73 INCHES.
HAZARDS AFFECTING LAND
----------------------
SURF...LARGE SWELLS GENERATED BY KATIA WILL CONTINUE TO AFFECT MOST
OF THE EAST COAST OF THE UNITED STATES...BERMUDA...THE GREATER
ANTILLES...AND EAST-FACING BEACHES OF THE BAHAMAS DURING THE NEXT
FEW DAYS. THESE SWELLS ARE LIKELY TO CAUSE LIFE-THREATENING SURF
AND RIP CURRENT CONDITIONS. PLEASE CONSULT PRODUCTS FROM YOUR LOCAL
WEATHER SERVICE OFFICE FOR ADDITIONAL INFORMATION.
WIND...TROPICAL-STORM-FORCE WINDS...ESPECIALLY IN GUSTS...ARE
POSSIBLE IN BERMUDA THROUGH THURSDAY.
RAINFALL...KATIA IS EXPECTED TO PRODUCE TOTAL RAIN ACCUMULATIONS OF
1 TO 2 INCHES ACROSS BERMUDA.
NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...1100 AM AST.
HURRICANE KATIA INTERMEDIATE ADVISORY NUMBER 37A
NWS NATIONAL HURRICANE CENTER MIAMI FL AL122011
800 AM AST WED SEP 07 2011
...KATIA CONTINUES NORTHWESTWARD...
SUMMARY OF 800 AM AST...1200 UTC...INFORMATION
----------------------------------------------
LOCATION...29.0N 68.4W
ABOUT 310 MI...500 KM SW OF BERMUDA
MAXIMUM SUSTAINED WINDS...90 MPH...150 KM/H
PRESENT MOVEMENT...NW OR 315 DEGREES AT 10 MPH...17 KM/H
MINIMUM CENTRAL PRESSURE...973 MB...28.73 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...
NONE.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
A TROPICAL STORM WATCH IS IN EFFECT FOR...
* BERMUDA
FOR ADDITIONAL STORM INFORMATION...PLEASE MONITOR PRODUCTS ISSUED BY
THE BERMUDA WEATHER SERVICE.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 800 AM AST...1200 UTC...THE CENTER OF HURRICANE KATIA WAS LOCATED
NEAR LATITUDE 29.0 NORTH...LONGITUDE 68.4 WEST. KATIA IS MOVING
TOWARD THE NORTHWEST NEAR 10 MPH...17 KM/H. A TURN TOWARD THE
NORTH-NORTHWEST IS EXPECTED LATER TODAY...FOLLOWED BY A TURN TOWARD
THE NORTH AND THEN THE NORTH-NORTHEAST WITH AN INCREASE IN FORWARD
SPEED LATE THURSDAY AND EARLY FRIDAY. ON THE FORECAST TRACK...THE
CORE OF KATIA IS EXPECTED TO MOVE BETWEEN THE EAST COAST OF THE
UNITED STATES AND BERMUDA TONIGHT AND THURSDAY.
MAXIMUM SUSTAINED WINDS REMAIN NEAR 90 MPH...150 KM/H...WITH HIGHER
GUSTS. KATIA IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON
HURRICANE WIND SCALE. LITTLE CHANGE IN STRENGTH IS FORECAST
TODAY...FOLLOWED BY GRADUAL WEAKENING ON THURSDAY.
HURRICANE-FORCE WINDS EXTEND OUTWARD UP TO 70 MILES...110 KM...FROM
THE CENTER...AND TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO
205 MILES...335 KM.
THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 973 MB...28.73 INCHES.
HAZARDS AFFECTING LAND
----------------------
SURF...LARGE SWELLS GENERATED BY KATIA WILL CONTINUE TO AFFECT MOST
OF THE EAST COAST OF THE UNITED STATES...BERMUDA...THE GREATER
ANTILLES...AND EAST-FACING BEACHES OF THE BAHAMAS DURING THE NEXT
FEW DAYS. THESE SWELLS ARE LIKELY TO CAUSE LIFE-THREATENING SURF
AND RIP CURRENT CONDITIONS. PLEASE CONSULT PRODUCTS FROM YOUR LOCAL
WEATHER SERVICE OFFICE FOR ADDITIONAL INFORMATION.
WIND...TROPICAL-STORM-FORCE WINDS...ESPECIALLY IN GUSTS...ARE
POSSIBLE IN BERMUDA THROUGH THURSDAY.
RAINFALL...KATIA IS EXPECTED TO PRODUCE TOTAL RAIN ACCUMULATIONS OF
1 TO 2 INCHES ACROSS BERMUDA.
NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...1100 AM AST.