WTPA31 PHFO 010253 RRA

TCPCP1



BULLETIN

HURRICANE WALAKA ADVISORY NUMBER   6

NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI   CP012018

500 PM HST SUN SEP 30 2018



...WALAKA STRENGTHENS TO A HURRICANE FAR SOUTHWEST OF HAWAII...





SUMMARY OF 500 PM HST...0300 UTC...INFORMATION

----------------------------------------------

LOCATION...11.9N 166.4W

ABOUT 390 MI...630 KM SSE OF JOHNSTON ISLAND

ABOUT 860 MI...1380 KM SW OF HONOLULU HAWAII

MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/H

PRESENT MOVEMENT...W OR 280 DEGREES AT 12 MPH...19 KM/H

MINIMUM CENTRAL PRESSURE...988 MB...29.18 INCHES





WATCHES AND WARNINGS

--------------------

CHANGES WITH THIS ADVISORY:



A HURRICANE WARNING IS NOW IN EFFECT FOR JOHNSTON ATOLL.



SUMMARY OF WATCHES AND WARNINGS IN EFFECT:



A HURRICANE WARNING IS IN EFFECT FOR...

.. JOHNSTON ATOLL



A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED IN

THE WARNING AREA. A WARNING IS TYPICALLY ISSUED 36 HOURS BEFORE THE

ANTICIPATED FIRST OCCURRENCE OF TROPICAL-STORM FORCE WINDS,

CONDITIONS THAT MAKE OUTSIDE PREPARATIONS DIFFICULT OR DANGEROUS.



INTERESTS IN THE PAPAHANAUMOKUAKEA MARINE NATIONAL MONUMENT SHOULD

MONITOR THE PROGRESS OF WALAKA.





DISCUSSION AND OUTLOOK

----------------------

AT 500 PM HST (0300 UTC), THE CENTER OF HURRICANE WALAKA WAS LOCATED

NEAR LATITUDE 11.9 NORTH, LONGITUDE 166.4 WEST. WALAKA IS MOVING

TOWARD THE WEST NEAR 12 MPH (19 KM/H) AND THIS MOTION IS EXPECTED TO

SLOW AND BECOME NORTHWEST ON MONDAY, THEN NORTH ON TUESDAY.



MAXIMUM SUSTAINED WINDS ARE NEAR 75 MPH (120 KM/H) WITH HIGHER

GUSTS. RAPID INTENSIFICATION IS FORECAST THROUGH TUESDAY.



HURRICANE-FORCE WINDS EXTEND OUTWARD UP TO 25 MILES (35 KM) FROM THE