WTXS31 PGTW 310900 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE 17S (HERMAN) WARNING NR 009// RMKS/ 1. TROPICAL CYCLONE 17S (HERMAN) WARNING NR 009 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON TEN-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 310600Z --- NEAR 17.4S 106.4E MOVEMENT PAST SIX HOURS - 165 DEGREES AT 07 KTS POSITION ACCURATE TO WITHIN 015 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 110 KT, GUSTS 135 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 020 NM NORTHEAST QUADRANT 020 NM SOUTHEAST QUADRANT 020 NM SOUTHWEST QUADRANT 020 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT 030 NM SOUTHEAST QUADRANT 030 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 035 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT REPEAT POSIT: 17.4S 106.4E --- FORECASTS: 12 HRS, VALID AT: 311800Z --- 17.6S 106.8E MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT WIND RADII VALID OVER OPEN WATER ONLY VECTOR TO 24 HR POSIT: 180 DEG/ 03 KTS --- 24 HRS, VALID AT: 010600Z --- 18.1S 106.8E MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT WIND RADII VALID OVER OPEN WATER ONLY VECTOR TO 36 HR POSIT: 245 DEG/ 04 KTS --- 36 HRS, VALID AT: 011800Z --- 18.4S 106.1E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY VECTOR TO 48 HR POSIT: 265 DEG/ 04 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 020600Z --- 18.5S 105.2E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER VECTOR TO 72 HR POSIT: 285 DEG/ 06 KTS --- 72 HRS, VALID AT: 030600Z --- 18.0S 102.9E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER VECTOR TO 96 HR POSIT: 290 DEG/ 06 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 040600Z --- 17.1S 100.6E MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER VECTOR TO 120 HR POSIT: 295 DEG/ 09 KTS --- 120 HRS, VALID AT: 050600Z --- 15.5S 97.4E MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER --- REMARKS: 310900Z POSITION NEAR 17.5S 106.5E. 31MAR23. TROPICAL CYCLONE 17S (HERMAN), LOCATED APPROXIMATELY 524 NM WEST-NORTHWEST OF LEARMONTH, AUSTRALIA, HAS TRACKED SOUTH- SOUTHEASTWARD AT 07 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 310600Z IS 27 FEET. NEXT WARNINGS AT 311500Z, 312100Z, 010300Z AND 010900Z. // NNNN