WTJP21 RJTD 281800

WARNING 281800.

WARNING VALID 291800.

WARNING IS UPDATED EVERY 6 HOURS.

STORM WARNING.

SEVERE TROPICAL STORM 1803 JELAWAT (1803) UPGRADED FROM TROPICAL

STORM 990 HPA

AT 15.3N 135.3E SEA EAST OF PHILIPPINES MOVING NORTH 07 KNOTS.

POSITION FAIR.

MAX WINDS 50 KNOTS NEAR CENTER.

RADIUS OF OVER 30 KNOT WINDS 180 MILES NORTH SEMICIRCLE AND 120 MILES

ELSEWHERE.

FORECAST POSITION FOR 291800UTC AT 16.0N 135.9E WITH 60 MILES RADIUS

OF 70 PERCENT PROBABILITY CIRCLE.

980 HPA, MAX WINDS 60 KNOTS NEAR CENTER.

EXTENDED OUTLOOK.

FORECAST POSITION FOR 301800UTC AT 17.6N 138.1E WITH 110 MILES RADIUS

OF 70 PERCENT PROBABILITY CIRCLE.

985 HPA, MAX WINDS 55 KNOTS NEAR CENTER.

FORECAST POSITION FOR 311800UTC AT 19.1N 140.0E WITH 170 MILES RADIUS

OF 70 PERCENT PROBABILITY CIRCLE.

985 HPA, MAX WINDS 50 KNOTS NEAR CENTER.



JAPAN METEOROLOGICAL AGENCY.=