WTPS31 PGTW 170900 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TROPICAL CYCLONE 09P (GITA) WARNING NR 034 01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 170600Z --- NEAR 24.9S 165.6E MOVEMENT PAST SIX HOURS - 240 DEGREES AT 08 KTS POSITION ACCURATE TO WITHIN 045 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 075 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 145 NM NORTHEAST QUADRANT 165 NM SOUTHEAST QUADRANT 150 NM SOUTHWEST QUADRANT 110 NM NORTHWEST QUADRANT REPEAT POSIT: 24.9S 165.6E --- FORECASTS: 12 HRS, VALID AT: 171800Z --- 25.9S 163.8E MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 145 NM NORTHEAST QUADRANT 160 NM SOUTHEAST QUADRANT 140 NM SOUTHWEST QUADRANT 115 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 215 DEG/ 10 KTS --- 24 HRS, VALID AT: 180600Z --- 27.5S 162.5E MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 055 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 130 NM NORTHEAST QUADRANT 160 NM SOUTHEAST QUADRANT 140 NM SOUTHWEST QUADRANT 110 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 190 DEG/ 10 KTS --- 36 HRS, VALID AT: 181800Z --- 29.5S 162.0E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 155 NM NORTHEAST QUADRANT 185 NM SOUTHEAST QUADRANT 150 NM SOUTHWEST QUADRANT 115 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 160 DEG/ 16 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 190600Z --- 32.4S 163.3E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 190 NM NORTHEAST QUADRANT 200 NM SOUTHEAST QUADRANT 185 NM SOUTHWEST QUADRANT 145 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 145 DEG/ 21 KTS --- 72 HRS, VALID AT: 200600Z --- 39.3S 169.6E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 050 KT WINDS - 100 NM NORTHEAST QUADRANT 120 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 220 NM NORTHEAST QUADRANT 240 NM SOUTHEAST QUADRANT 270 NM SOUTHWEST QUADRANT 200 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 135 DEG/ 14 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 210600Z --- 43.3S 174.8E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL RADIUS OF 034 KT WINDS - 210 NM NORTHEAST QUADRANT 210 NM SOUTHEAST QUADRANT 285 NM SOUTHWEST QUADRANT 215 NM NORTHWEST QUADRANT --- REMARKS: 170900Z POSITION NEAR 25.2S 165.1E. TROPICAL CYCLONE (TC) 09P (GITA), LOCATED APPROXIMATELY 170 NM SOUTH OF NOUMEA, NEW CALEDONIA, HAS TRACKED WEST-SOUTHWESTWARD AT 08 KNOTS OVER THE PAST SIX HOURS. ANIMATED MULTISPECTRAL SATELLITE IMAGERY SHOWS AN EXPANDING CONVECTIVE CLOUD MASS ASSOCIATED WITH THE LOW LEVEL CIRCULATION CENTER (LLCC). THE INITIAL POSITION IS BASED ON A 170453Z 37GHZ MICROWAVE IMAGE WHICH STILL SHOWS A MICROWAVE EYE FEATURE AND A CLEARLY DEFINED LLCC. THE INITIAL INTENSITY OF 65 KNOTS IS BASED ON DVORAK CURRENT INTENSITY (CI) ESTIMATES OF T4.0 (65 KNOTS) FROM PHFO AND PGTW. ENVIRONMENTAL ANALYSIS REVEALS MODERATE VERTICAL WIND SHEAR (15 TO 20 KNOTS) WHICH IS STILL OFFSET BY A ROBUST POLEWARD OUTFLOW CHANNEL. SEA SURFACE TEMPERATURES REMAIN FAVORABLE FOR THE TIME BEING, BETWEEN 26 AND 27 DEGREES CELSIUS. TC 09P IS TRACKING SOUTHWESTWARD ALONG THE NORTHWESTERN EDGE OF A SUBTROPICAL RIDGE (STR) LOCATED TO THE SOUTHEAST. TC 09P WILL ROUND THE WESTERN EDGE OF THE STR AND BEGIN TO TRACK SOUTHWARD BY TAU 36, WITH AN INTENSITY OF 50 KNOTS. TC 09P WILL THEN TRACK SOUTHEASTWARD AND BEGIN EXTRATROPICAL TRANSITION BY TAU 72. TC 09P WILL MAKE LANDFALL IN NEW ZEALAND NEAR TAU 84 AND COMPLETE EXTRA TROPICAL TRANSITION BY TAU 96. DYNAMIC MODEL GUIDANCE IS STILL IN GOOD AGREEMENT, THEREFORE, THERE IS HIGH CONFIDENCE IN THE JTWC FORECAST TRACK. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 170600Z IS 28 FEET. NEXT WARNINGS AT 171500Z, 172100Z, 180300Z AND 180900Z.//