WTPA31 PHFO 252359

TCPCP1



BULLETIN

TROPICAL STORM NIALA INTERMEDIATE ADVISORY NUMBER   4A

NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI   CP062015

200 PM HST FRI SEP 25 2015



...TROPICAL STORM NIALA SOUTHEAST OF HAWAII AND MOVING

NORTHWESTWARD...





SUMMARY OF 200 PM HST...0000 UTC...INFORMATION

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

LOCATION...16.0N 150.6W

ABOUT 390 MI...630 KM SE OF HILO HAWAII

ABOUT 600 MI...965 KM SE OF HONOLULU HAWAII

MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H

PRESENT MOVEMENT...NW OR 320 DEGREES AT 7 MPH...11 KM/H

MINIMUM CENTRAL PRESSURE...1000 MB...29.53 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...

* HAWAII COUNTY



A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE

POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 48 HOURS.



INTERESTS ELSEWHERE IN THE MAIN HAWAIIAN ISLANDS SHOULD MONITOR THE

PROGRESS OF TROPICAL STORM NIALA.





FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR

PRODUCTS ISSUED BY THE NATIONAL WEATHER SERVICE OFFICE IN

HONOLULU HAWAII.





DISCUSSION AND 48-HOUR OUTLOOK

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

AT 200 PM HST...0000 UTC...THE CENTER OF TROPICAL STORM NIALA WAS

LOCATED NEAR LATITUDE 16.0 NORTH...LONGITUDE 150.6 WEST. NIALA IS

MOVING TOWARD THE NORTHWEST NEAR 7 MPH...11 KM/H. THIS MOTION IS

EXPECTED TO CONTINUE THROUGH TONIGHT...FOLLOWED BY A TURN TOWARD

THE WEST AND A SLOWING OF THE FORWARD MOTION SATURDAY NIGHT AND

SUNDAY.



MAXIMUM SUSTAINED WINDS ARE NEAR 50 MPH...85 KM/H...WITH HIGHER

GUSTS. SOME INTENSIFICATION IS EXPECTED INTO SATURDAY...FOLLOWED

BY WEAKENING SATURDAY NIGHT AND SUNDAY.



TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 80 MILES...130 KM

FROM THE CENTER.



THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 1000 MB...29.53 INCHES.





HAZARDS AFFECTING LAND

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

RAINFALL...DEEP TROPICAL MOISTURE ASSOCIATED WITH TROPICAL STORM

NIALA WILL LIKELY REACH PARTS OF THE MAIN HAWAIIAN ISLANDS THIS

WEEKEND. THIS ENHANCED TROPICAL MOISTURE MAY PRODUCE LIFE

THREATENING FLOODS AND MUDSLIDES INTO EARLY NEXT WEEK...MAINLY OVER

THE BIG ISLAND.



SURF...SWELLS ASSOCIATED WITH TROPICAL STORM NIALA WILL PRODUCE

ELEVATED SURF ALONG EAST AND SOUTHEAST FACING SHORES ACROSS

PORTIONS OF THE MAIN HAWAIIAN ISLANDS...MAINLY THE BIG

ISLAND...STARTING THIS WEEKEND AND CONTINUING INTO EARLY NEXT WEEK.



WIND...TROPICAL STORM CONDITIONS ARE POSSIBLE ON THE BIG ISLAND ON

SUNDAY.





NEXT ADVISORY

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

NEXT COMPLETE ADVISORY...500 PM HST.



$$

FORECASTER WROE