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ACPN50 PHFO 181156
TWOCP 

TROPICAL WEATHER OUTLOOK
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
200 AM HST SUN AUG 18 2013

FOR THE CENTRAL NORTH PACIFIC...BETWEEN 140W AND 180

1. TROPICAL STORM PEWA HAS MOVED JUST WEST OF THE INTERNATIONAL DATE 
LINE...AND IS NOW LOCATED OVER THE NORTHWEST PACIFIC OCEAN ABOUT 960 
MILES EAST SOUTHEAST OF WAKE ISLAND. PEWA IS MOVING TOWARD THE WEST 
NORTHWEST AT ABOUT 13 MPH. FOR ADDITIONAL INFORMATION ON PEWA...SEE 
BULLETINS ISSUED BY THE REGIONAL METEOROLOGICAL CENTER IN TOKYO 
JAPAN UNDER WMO TEXT PRODUCT HEADER WTJP22 RJTD. FOR U.S. 
INTERESTS...SEE DEPARTMENT OF DEFENSE WARNINGS ISSUED BY THE JOINT 
TYPHOON WARNING CENTER IN HONOLULU...HAWAII UNDER WMO TEXT PRODUCT 
HEADER WTPN31 PGTW.

2. SHOWERS AND THUNDERSTORMS ASSOCIATED WITH A SURFACE TROUGH 
LOCATED ABOUT 1120 MILES WEST SOUTHWEST OF LIHUE...HAWAII ARE MOVING 
WESTWARD AT 10 TO 15 MPH. LITTLE SIGNIFICANT DEVELOPMENT OF THIS 
SYSTEM IS EXPECTED DUE TO ITS CLOSE PROXIMITY TO THE OUTFLOW FROM 
TROPICAL STORM PEWA...WHICH HAS BEEN CREATING UNFAVORABLE WINDS 
ALOFT ABOVE THE SYSTEM. THIS SYSTEM HAS A LOW CHANCE...20 PERCENT... 
OF BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS.

3. SHOWERS AND THUNDERSTORMS ASSOCIATED WITH ANOTHER SURFACE TROUGH 
LOCATED ABOUT 650 MILES SOUTHWEST OF LIHUE...HAWAII ARE MOVING 
WESTWARD AT 10 TO 15 MPH. EVEN THOUGH THUNDERSTORMS HAVE INCREASED 
IN COVERAGE AND INTENSITY OVERNIGHT...LITTLE SIGNIFICANT DEVELOPMENT 
OF THIS SYSTEM IS EXPECTED DUE TO STRONG UPPER LEVEL WINDS OVER THE 
SURFACE TROUGH. THIS SYSTEM HAS A LOW CHANCE...10 PERCENT...OF 
BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS.

4. SHOWERS AND THUNDERSTORMS ASSOCIATED WITH A WEAK DISTURBANCE 
LOCATED ABOUT 1100 MILES EAST SOUTHEAST OF HILO...HAWAII HAVE 
INCREASED IN COVERAGE AND INTENSITY OVERNIGHT. LITTLE SIGNIFICANT 
DEVELOPMENT OF THIS SYSTEM IS EXPECTED AS THIS DISTURBANCE MOVES 
WEST NORTHWEST AT 10 TO 15 MPH DURING THE NEXT 24 TO 36 HOURS DUE TO 
VERY STRONG SOUTHERLY WINDS OVER THE SYSTEM. HOWEVER...THE UPPER 
LEVEL WINDS MAY RELAX SLIGHTLY BY LATE MONDAY...AND THIS SYSTEM HAS 
A LOW CHANCE...10 PERCENT...OF BECOMING A TROPICAL CYCLONE DURING 
THE NEXT 48 HOURS.

ELSEWHERE...NO TROPICAL CYCLONES ARE EXPECTED THROUGH LATE MONDAY 
NIGHT.

$$

HOUSTON