** WTIO31 PGTW 172100 *** MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TROPICAL CYCLONE 07B WARNING NR 003 01 ACTIVE TROPICAL CYCLONE IN NORTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 171800Z --- NEAR 9.5N 83.1E MOVEMENT PAST SIX HOURS - 350 DEGREES AT 05 KTS POSITION ACCURATE TO WITHIN 055 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT REPEAT POSIT: 9.5N 83.1E --- FORECASTS: 12 HRS, VALID AT: 180600Z --- 10.4N 82.7E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT RADIUS OF 034 KT WINDS - 050 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 310 DEG/ 04 KTS --- 24 HRS, VALID AT: 181800Z --- 10.9N 82.1E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT RADIUS OF 034 KT WINDS - 055 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 305 DEG/ 04 KTS --- 36 HRS, VALID AT: 190600Z --- 11.3N 81.5E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 315 DEG/ 03 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 191800Z --- 11.8N 81.0E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT --- REMARKS: 172100Z POSITION NEAR 9.7N 83.0E. TROPICAL CYCLONE (TC) 07B, LOCATED APPROXIMATELY 270 NM SOUTH-SOUTHEAST OF MADRAS, INDIA, HAS TRACKED NORTHWARD AT 05 KNOTS OVER THE PAST 06 HOURS. TC 07B CONTINUES TO TRACK ALONG THE SOUTHWESTERN PERIPHERY OF A MID-LEVEL STEERING RIDGE CENTERED OVER NORTHERN INDOCHINA. THE STORM WILL INTENSIFY MODESTLY AS IT TRACKS TOWARD THE NORTHWEST IN A FAVORABLE ENVIRONMENT OF LOW TO MODERATE VERTICAL WIND SHEAR. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 171800Z IS 16 FEET. NEXT WARNINGS AT 180900Z AND 182100Z.// ** WTPH20 RPMM 171800 *** TTT WARNING 06 AT 1800 17 DECEMBER TROPICAL DEPRESSION WAS ESTIMATED BASED ON SATELLITE AND SURFACE DATA AT ONE ONE POINT ZERO NORTH ONE ONE SIX POINT FIVE EAST FORECAST TO MOVE WEST NORTHWEST AT ZERO TWO METERS PER SECOND MODERATE TO ROUGH SEAS WITHIN TWO ZERO ZERO KILOMETERS RADIUS FROM CENTER ESTIMATED CENTRAL PRESSURE ONE ZERO ZERO FOUR HECTOPASCALS MAXIMUM WINDS ONE FIVE METERS PER SECOND NEAR CENTER FORECAST POSITION AT 181800 ONE ONE POINT THREE NORTH ONE ONE FIVE POINT ZERO EAST ALL SHIPS WITHIN DEPRESSION AREA ARE REQUESTED TO SEND THREE HOURLY WEATHER REPORTS TO WEATHER MANILA PD WEATHER MANILA= ** WTPH RPLL 171800 *** TTT WARNING 06 AT 1800 17 DECEMBER,TROPICAL DEPRESSION WAS ESTMD BASED ON SATELLITE AND SURFACE DATA AT ONE ONE POINT ZERO NORTH ONE ONE SIX POINT FIVE EAST FORECAST TO MOVE WEST NORTHWEST AT ZERO TWO METERS PER SECOND MODERATE TO ROUGH SEAS WITHIN TWO ZERO ZERO KILOMETERS RADIUS FROM CENTER ESTMD CENTRAL PRESSURE ONE ZERO ZERO FOUR HECTOPASCALS MAX WINDS ONE FIVE METERS PER SECOND NEAR CENTER FORECAST POSITION AT 181800 ONE ONE POINT THREE NORTH ONE ONE FIVE POINT ZERO EAST ALL SHIPS WITHIN DEPRESSION AREA ARE REQUESTED TO SEND THREE-HOURLY WEATHER REPORTS TO WEATHER MANILA PD END OF FCST=