WTPH20 RPMM 011800

TTT TYPHOON WARNING 04

AT 1800 01 OCTOBER TYPHOON {CHABA}{1618} UPGRADED  FROM

SEVERE TROPICAL STORM WAS LOCATED BASED ON ALL AVAILABLE

DATA AT ONE EIGHT POINT SIX NORTH ONE THREE TWO POINT SIX

EAST FORECAST TO MOVE NORTHWEST AT ZERO SIX METERS   PER

SECOND ROUGH TO PHENOMENAL SEAS WITHIN THREE ZERO ZERO

KILOMETER RADIUS ESTIMATED CENTRAL PRESSURE NINE SEVEN

TWO HECTOPASCALS MAXIMUM WINDS THREE  SIX  METERS  PER

SECOND NEAR THE CENTER TWO FIVE METERS PER SECOND WITHIN

ONE FIVE ZERO  KILOMETER RADIUS ONE THREE METERS  PER

SECOND WITHIN THREE ZERO ZERO KILOMETER RADIUS FORECAST

POSITIONS AT 021800 TWO TWO POINT NINE NORTH ONE TWO EIGHT

POINT NINE EAST AT 031800 TWO SIX POINT EIGHT NORTH ONE TWO

SEVEN POINT EIGHT EAST AND AT 041800 THREE ONE  POINT EIGHT

NORTH ONE THREE ZERO POINT ZERO EAST ALL SHIPS WITHIN

TYPHOON AREA ARE REQUESTED TO SEND THREE HOURLY  WEATHER

REPORT TO PHILIPPINE ATMOSPHERIC GEOPHYSICAL AND ASTRONOMICAL

SEVICES ADMINISTRATION PD



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