WTJP23 RJTD 031800

WARNING 031800.

WARNING VALID 041800.

WARNING IS UPDATED EVERY 6 HOURS.

GALE WARNING.

TROPICAL STORM 1511 NANGKA (1511) UPGRADED FROM TROPICAL DEPRESSION

1000 HPA

AT 09.4N 170.5E MARSHALLS MOVING WESTNORTHWEST 10 KNOTS.

POSITION FAIR.

MAX WINDS 35 KNOTS NEAR CENTER.

RADIUS OF OVER 30 KNOT WINDS 120 MILES.

FORECAST POSITION FOR 040600UTC AT 10.2N 168.9E WITH 50 MILES RADIUS

OF 70 PERCENT PROBABILITY CIRCLE.

998 HPA, MAX WINDS 35 KNOTS NEAR CENTER.

FORECAST POSITION FOR 041800UTC AT 10.9N 166.6E WITH 75 MILES RADIUS

OF 70 PERCENT PROBABILITY CIRCLE.

996 HPA, MAX WINDS 40 KNOTS NEAR CENTER.

EXTENDED OUTLOOK.

FORECAST POSITION FOR 051800UTC AT 11.7N 161.2E WITH 140 MILES RADIUS

OF 70 PERCENT PROBABILITY CIRCLE.

992 HPA, MAX WINDS 45 KNOTS NEAR CENTER.

FORECAST POSITION FOR 061800UTC AT 12.6N 156.4E WITH 210 MILES RADIUS

OF 70 PERCENT PROBABILITY CIRCLE.

985 HPA, MAX WINDS 50 KNOTS NEAR CENTER.



JAPAN METEOROLOGICAL AGENCY.=