WTJP21 RJTD 041800

WARNING 041800.

WARNING VALID 051800.

WARNING IS UPDATED EVERY 6 HOURS.

GALE WARNING.

TROPICAL STORM 1504 MAYSAK (1504) DOWNGRADED FROM SEVERE TROPICAL

STORM 990 HPA

AT 15.4N 123.7E SEA EAST OF PHILIPPINES MOVING WESTNORTHWEST 10

KNOTS.

POSITION FAIR.

MAX WINDS 45 KNOTS NEAR CENTER.

RADIUS OF OVER 30 KNOT WINDS 120 MILES.

FORECAST POSITION FOR 050600UTC AT 17.5N 121.3E WITH 50 MILES RADIUS

OF 70 PERCENT PROBABILITY CIRCLE.

996 HPA, MAX WINDS 40 KNOTS NEAR CENTER.

FORECAST POSITION FOR 051800UTC AT 19.2N 119.1E WITH 75 MILES RADIUS

OF 70 PERCENT PROBABILITY CIRCLE.

1000 HPA, MAX WINDS 35 KNOTS NEAR CENTER.

EXTENDED OUTLOOK.

FORECAST POSITION FOR 061800UTC AT 19.8N 117.9E WITH 110 MILES RADIUS

OF 70 PERCENT PROBABILITY CIRCLE.

1004 HPA.

BECOMING TROPICAL DEPRESSION.



JAPAN METEOROLOGICAL AGENCY.=