Post by Nws Olney Maryland on Sept 4, 2011 9:59:08 GMT -5
BULLETIN
HURRICANE KATIA ADVISORY NUMBER 20
NWS NATIONAL HURRICANE CENTER MIAMI FL AL122011
1100 PM AST FRI SEP 02 2011
...HURRICANE KATIA EXPECTED TO PASS WELL TO THE NORTH OF THE LEEWARD
ISLANDS ON SUNDAY...
SUMMARY OF 1100 PM AST...0300 UTC...INFORMATION
-----------------------------------------------
LOCATION...18.5N 54.3W
ABOUT 575 MI...930 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...988 MB...29.18 INCHES
WATCHES AND WARNINGS
--------------------
THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 1100 PM AST...0300 UTC...THE CENTER OF HURRICANE KATIA WAS
LOCATED NEAR LATITUDE 18.5 NORTH...LONGITUDE 54.3 WEST. KATIA IS
MOVING TOWARD THE NORTHWEST NEAR 12 MPH...19 KM/H. A GENERAL TRACK
BETWEEN THE NORTHWEST AND WEST-NORTHWEST WITH NO SIGNIFICANT CHANGE
IN FORWARD SPEED IS EXPECTED DURING THE NEXT FEW DAYS. ON THE
FORECAST TRACK...KATIA WILL PASS WELL TO THE NORTH OF THE LEEWARD
ISLANDS ON SUNDAY.
MAXIMUM SUSTAINED WINDS REMAIN NEAR 75 MPH...120 KM/H...WITH HIGHER
GUSTS. KATIA IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON
HURRICANE WIND SCALE. NO SIGNIFICANT CHANGE IN INTENSITY IS
EXPECTED ON SATURDAY BUT KATIA COULD BEGIN STRENGTHENING ON SUNDAY.
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 MAINLY TO THE NORTH AND EAST OF THE CENTER.
ESTIMATED MINIMUM CENTRAL PRESSURE IS 988 MB...29.18 INCHES.
HAZARDS AFFECTING LAND
----------------------
SURF...SWELLS GENERATED BY KATIA WILL BEGIN AFFECTING THE LESSER
ANTILLES OVER THE WEEKEND. 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...500 AM AST.
HURRICANE KATIA ADVISORY NUMBER 20
NWS NATIONAL HURRICANE CENTER MIAMI FL AL122011
1100 PM AST FRI SEP 02 2011
...HURRICANE KATIA EXPECTED TO PASS WELL TO THE NORTH OF THE LEEWARD
ISLANDS ON SUNDAY...
SUMMARY OF 1100 PM AST...0300 UTC...INFORMATION
-----------------------------------------------
LOCATION...18.5N 54.3W
ABOUT 575 MI...930 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...988 MB...29.18 INCHES
WATCHES AND WARNINGS
--------------------
THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 1100 PM AST...0300 UTC...THE CENTER OF HURRICANE KATIA WAS
LOCATED NEAR LATITUDE 18.5 NORTH...LONGITUDE 54.3 WEST. KATIA IS
MOVING TOWARD THE NORTHWEST NEAR 12 MPH...19 KM/H. A GENERAL TRACK
BETWEEN THE NORTHWEST AND WEST-NORTHWEST WITH NO SIGNIFICANT CHANGE
IN FORWARD SPEED IS EXPECTED DURING THE NEXT FEW DAYS. ON THE
FORECAST TRACK...KATIA WILL PASS WELL TO THE NORTH OF THE LEEWARD
ISLANDS ON SUNDAY.
MAXIMUM SUSTAINED WINDS REMAIN NEAR 75 MPH...120 KM/H...WITH HIGHER
GUSTS. KATIA IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON
HURRICANE WIND SCALE. NO SIGNIFICANT CHANGE IN INTENSITY IS
EXPECTED ON SATURDAY BUT KATIA COULD BEGIN STRENGTHENING ON SUNDAY.
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 MAINLY TO THE NORTH AND EAST OF THE CENTER.
ESTIMATED MINIMUM CENTRAL PRESSURE IS 988 MB...29.18 INCHES.
HAZARDS AFFECTING LAND
----------------------
SURF...SWELLS GENERATED BY KATIA WILL BEGIN AFFECTING THE LESSER
ANTILLES OVER THE WEEKEND. 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...500 AM AST.