Post by Nws Olney Maryland on Sept 4, 2011 9:58:21 GMT -5
BULLETIN
HURRICANE KATIA ADVISORY NUMBER 19
NWS NATIONAL HURRICANE CENTER MIAMI FL AL122011
500 PM AST FRI SEP 02 2011
...KATIA MOVING OVER OPEN ATLANTIC OCEAN WITH 75 MPH WINDS...
SUMMARY OF 500 PM AST...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...18.4N 53.5W
ABOUT 630 MI...1015 KM E OF THE NORTHERN LEEWARD ISLANDS
MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/H
PRESENT MOVEMENT...NW OR 305 DEGREES AT 12 MPH...19 KM/H
MINIMUM CENTRAL PRESSURE...989 MB...29.21 INCHES
WATCHES AND WARNINGS
--------------------
THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 500 PM AST...2100 UTC...THE CENTER OF HURRICANE KATIA WAS LOCATED
NEAR LATITUDE 18.4 NORTH...LONGITUDE 53.5 WEST. KATIA IS MOVING
TOWARD THE NORTHWEST NEAR 12 MPH...19 KM/H...AND A MOTION TOWARD THE
WEST-NORTHWEST OR NORTHWEST AT ABOUT THE SAME RATE OF SPEED IS
ANTICIPATED FOR THE NEXT TWO DAYS.
MAXIMUM SUSTAINED WINDS ARE NEAR 75 MPH...120 KM/H...WITH HIGHER
GUSTS. KATIA IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON
HURRICANE WIND SCALE. SOME STRENGTHENING IS FORECAST DURING THE
NEXT 48 HOURS.
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 35 MILES...55 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 175
MILES...280 KM.
ESTIMATED MINIMUM CENTRAL PRESSURE IS 989 MB...29.21 INCHES.
HAZARDS AFFECTING LAND
----------------------
SURF...SWELLS GENERATED BY KATIA WILL BEGIN AFFECTING THE LESSER
ANTILLES BY LATE TODAY. THESE SWELLS ARE LIKELY TO CAUSE
LIFE-THREATENING SURF AND RIP CURRENT CONDITIONS. PLEASE CONSULT
PRODUCTS FROM YOUR LOCAL WEATHER OFFICE.
NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...1100 PM AST.
HURRICANE KATIA ADVISORY NUMBER 19
NWS NATIONAL HURRICANE CENTER MIAMI FL AL122011
500 PM AST FRI SEP 02 2011
...KATIA MOVING OVER OPEN ATLANTIC OCEAN WITH 75 MPH WINDS...
SUMMARY OF 500 PM AST...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...18.4N 53.5W
ABOUT 630 MI...1015 KM E OF THE NORTHERN LEEWARD ISLANDS
MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/H
PRESENT MOVEMENT...NW OR 305 DEGREES AT 12 MPH...19 KM/H
MINIMUM CENTRAL PRESSURE...989 MB...29.21 INCHES
WATCHES AND WARNINGS
--------------------
THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 500 PM AST...2100 UTC...THE CENTER OF HURRICANE KATIA WAS LOCATED
NEAR LATITUDE 18.4 NORTH...LONGITUDE 53.5 WEST. KATIA IS MOVING
TOWARD THE NORTHWEST NEAR 12 MPH...19 KM/H...AND A MOTION TOWARD THE
WEST-NORTHWEST OR NORTHWEST AT ABOUT THE SAME RATE OF SPEED IS
ANTICIPATED FOR THE NEXT TWO DAYS.
MAXIMUM SUSTAINED WINDS ARE NEAR 75 MPH...120 KM/H...WITH HIGHER
GUSTS. KATIA IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON
HURRICANE WIND SCALE. SOME STRENGTHENING IS FORECAST DURING THE
NEXT 48 HOURS.
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 35 MILES...55 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 175
MILES...280 KM.
ESTIMATED MINIMUM CENTRAL PRESSURE IS 989 MB...29.21 INCHES.
HAZARDS AFFECTING LAND
----------------------
SURF...SWELLS GENERATED BY KATIA WILL BEGIN AFFECTING THE LESSER
ANTILLES BY LATE TODAY. THESE SWELLS ARE LIKELY TO CAUSE
LIFE-THREATENING SURF AND RIP CURRENT CONDITIONS. PLEASE CONSULT
PRODUCTS FROM YOUR LOCAL WEATHER OFFICE.
NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...1100 PM AST.