WTJP21 RJTD 311800

WARNING 311800.

WARNING VALID 011800.

WARNING IS UPDATED EVERY 6 HOURS.

STORM WARNING.

SEVERE TROPICAL STORM 1803 JELAWAT (1803) DOWNGRADED FROM TYPHOON 980

HPA

AT 19.0N 143.0E MARIANAS MOVING EAST 08 KNOTS.

POSITION FAIR.

MAX WINDS 60 KNOTS NEAR CENTER.

RADIUS OF OVER 50 KNOT WINDS 40 MILES.

RADIUS OF OVER 30 KNOT WINDS 210 MILES NORTHEAST SEMICIRCLE AND 120

MILES ELSEWHERE.

FORECAST POSITION FOR 010600UTC AT 19.4N 144.5E WITH 30 MILES RADIUS

OF 70 PERCENT PROBABILITY CIRCLE.

992 HPA, MAX WINDS 45 KNOTS NEAR CENTER.

FORECAST POSITION FOR 011800UTC AT 19.1N 145.9E WITH 60 MILES RADIUS

OF 70 PERCENT PROBABILITY CIRCLE.

996 HPA, MAX WINDS 35 KNOTS NEAR CENTER.

EXTENDED OUTLOOK.

FORECAST POSITION FOR 021800UTC AT 19.5N 148.7E WITH 110 MILES RADIUS

OF 70 PERCENT PROBABILITY CIRCLE.

996 HPA, MAX WINDS 35 KNOTS NEAR CENTER.

FORECAST POSITION FOR 031800UTC AT 19.7N 151.5E WITH 170 MILES RADIUS

OF 70 PERCENT PROBABILITY CIRCLE.

996 HPA, MAX WINDS 35 KNOTS NEAR CENTER.



JAPAN METEOROLOGICAL AGENCY.=