Tropical Cyclones
[Index] | Tropical Cyclone JUNE : JTWC Advisories |
Season 2013-2014 Summaries (Operational Data): [AU] [SIO] [SPAC] [SH] | |
---> Tropical Cyclone JUNE Track Map and Data |
WTPS21 PGTW 20140117 03:00z MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE FORMATION ALERT// RMKS/ 1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE WITHIN 240 NM EITHER SIDE OF A LINE FROM 16.2S 161.3E TO 27.0S 166.3E WITHIN THE NEXT 06 TO 24 HOURS. AVAILABLE DATA DOES NOT JUSTIFY ISSUANCE OF NUMBERED TROPICAL CYCLONE WARNINGS AT THIS TIME. WINDS IN THE AREA ARE ESTIMATED TO BE 25 TO 30 KNOTS. METSAT IMAGERY AT 170230Z INDICATES THAT A CIRCULATION CENTER IS LOCATED NEAR 16.9S 162.8E. THE SYSTEM IS MOVING SOUTHEASTWARD AT 19 KNOTS. 2. REMARKS: THE AREA OF CONVECTION PREVIOUSLY LOCATED NEAR 13.8S 160.2E, IS NOW LOCATED NEAR 16.9S 162.8E, APPROXIMATELY 370 NM NORTH-NORTHEAST OF NOUMEA, NEW CALEDONIA. ANIMATED MULTISPECTRAL SATELLITE IMAGERY DEPICTS A RAPIDLY CONSOLIDATING SYSTEM WITH DEEPENING FORMATIVE BANDS. UPPER LEVEL ANALYSIS SHOWS THE SYSTEM IS DIRECTLY UNDERNEATH A RIDGE AXIS IN AN AREA OF MODERATE (15-20 KNOT) VERTICAL WIND SHEAR. HOWEVER, THE SHEAR IS EASILY OFFSET BY A ROBUST RADIAL OUTFLOW, AS EVIDENCED IN ANIMATED WATER VAPOR IMAGERY. SEA SURFACE TEMPERATURES IN THE REGION ARE ALSO FAVORABLE FOR DEVELOPMENT. DYNAMIC MODELS ARE AGGRESSIVELY DEVELOPING THIS SYSTEM AS IT DRIFTS POLEWARD. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 25 TO 30 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1004 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS UPGRADED TO HIGH. 3. THIS ALERT WILL BE REISSUED, UPGRADED TO WARNING OR CANCELLED BY 180300Z. // ========================================================================= WTPS31 PGTW 20140117 15:00z MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE 10P (JUNE) WARNING NR 001// REF/A/JOINT TYPHOON WRNCEN PEARL HARBOR HI/170251ZJAN14// AMPN/REF A IS A TROPICAL CYCLONE FORMATION ALERT// RMKS/ 1. TROPICAL CYCLONE 10P (JUNE) WARNING NR 001 01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 171200Z --- NEAR 18.3S 162.8E MOVEMENT PAST SIX HOURS - 160 DEGREES AT 12 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY REPEAT POSIT: 18.3S 162.8E --- FORECASTS: 12 HRS, VALID AT: 180000Z --- 20.3S 163.5E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 165 DEG/ 12 KTS --- 24 HRS, VALID AT: 181200Z --- 22.7S 164.2E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 170 DEG/ 14 KTS --- 36 HRS, VALID AT: 190000Z --- 25.5S 164.8E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 075 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 155 DEG/ 16 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 191200Z --- 28.3S 166.3E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 145 DEG/ 17 KTS --- 72 HRS, VALID AT: 201200Z --- 33.8S 171.2E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL --- REMARKS: 171500Z POSITION NEAR 18.8S 163.0E. TROPICAL CYCLONE 10P (JUNE), LOCATED APPROXIMATELY 294 NM NORTHWEST OF NOUMEA, NEW CALEDONIA, HAS TRACKED SOUTH- SOUTHEASTWARD AT 12 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY ALONG WITH A 171058Z AMSU-B MICROWAVE IMAGE REVEALS A CONSOLIDATING SYSTEM AS THE LOW LEVEL CIRCULATION CENTER IS SLIGHTLY ELONGATED BUT DEEP CONVECTIVE BANDS HAVE PERSISTED ALONG THE EASTERN SEMI-CIRCLE. THE INITIAL POSITION IS BASED UPON THE AFOREMENTIONED SATELLITE IMAGERY WITH LOW CONFIDENCE. THE INITIAL INTENSITY IS ASSESSED AT 35 KNOTS BASED UPON THE CONSOLIDATING STRUCTURE AND A SPREAD OF DVORAK INTENSITY ESTIMATES THAT RANGE FROM 30 TO 45 KNOTS. UPPER LEVEL ANALYSIS REVEALS THE SYSTEM IS LOCATED JUST POLEWARD OF THE RIDGE AXIS WITH GOOD POLEWARD OUTFLOW AND MODERATE (10 TO 20 KNOTS) VERTICAL WIND SHEAR (VWS). TC JUNE IS CURRENTLY TRACKING SOUTH-SOUTHEASTWARD ALONG THE WESTERN PERIPHERY OF A SUBTROPICAL RIDGE (STR) LOCATED TO THE EAST OF THE SYSTEM. THIS STR WILL BE THE DOMINANT STEERING INFLUENCE THROUGH THE REMAINDER OF THE FORECAST PERIOD AS IT STEADILY DRIVES THE SYSTEM POLEWARD TOWARDS NEW ZEALAND. TC 10P IS EXPECTED TO FURTHER CONSOLIDATE AND INTENSIFY THROUGH THE NEXT 36 HOURS AS SEA SURFACE TEMPERATURES AND GOOD OUTFLOW ALLOW THE SYSTEM TO REACH 45 KNOTS. AFTER TAU 36, DECREASING SEA SURFACE TEMPERATURES AND INCREASING VWS WILL SLOWLY ERODE THE SYSTEM AS IT BEGINS EXTRATROPICAL TRANSITION (ETT) AT TAU 48. TC 10P IS EXPECTED TO COMPLETE ETT BY TAU 72. DYNAMIC MODEL GUIDANCE IS IN FAIR AGREEMENT WITH SOME VARIANCES IN THE EXACT TRACK AND TRANSLATIONAL SPEED AS IT MOVES POLEWARD. DUE TO THIS, THE JTWC FORECAST TRACK IS POSITIONED CLOSE TO THE MULTI-MODEL CONSENSUS WITH LOW CONFIDENCE. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 171200Z IS 8 FEET. NEXT WARNINGS AT 180300Z AND 181500Z. THIS WARNING SUPERSEDES AND CANCELS REF A, JOINT TYPHOON WRNCEN PEARL HARBOR HI 170251Z JAN 14 TROPICAL CYCLONE FORMATION ALERT (WTPS21 PGTW 170300).// ========================================================================= WTPS31 PGTW 20140118 03:00z MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE 10P (JUNE) WARNING NR 002// REF/A/JOINT TYPHOON WRNCEN PEARL HARBOR HI/170251ZJAN14// AMPN/REF A IS A TROPICAL CYCLONE FORMATION ALERT// RMKS/ 1. TROPICAL CYCLONE 10P (JUNE) WARNING NR 002 01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 180000Z --- NEAR 20.0S 163.7E MOVEMENT PAST SIX HOURS - 140 DEGREES AT 09 KTS POSITION ACCURATE TO WITHIN 040 NM POSITION BASED ON CENTER LOCATED BY A COMBINATION OF SATELLITE AND SYNOPTIC DATA PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 045 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT REPEAT POSIT: 20.0S 163.7E --- FORECASTS: 12 HRS, VALID AT: 181200Z --- 22.5S 164.3E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 045 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 165 DEG/ 14 KTS --- 24 HRS, VALID AT: 190000Z --- 25.2S 165.0E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 045 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 160 DEG/ 16 KTS --- 36 HRS, VALID AT: 191200Z --- 28.3S 166.2E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 034 KT WINDS - 045 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 150 DEG/ 16 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 200000Z --- 31.0S 168.2E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL VECTOR TO 72 HR POSIT: 135 DEG/ 15 KTS --- 72 HRS, VALID AT: 210000Z --- 35.1S 173.5E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL --- REMARKS: 180300Z POSITION NEAR 20.6S 163.9E. TROPICAL CYCLONE (TC) 10P (JUNE), LOCATED APPROXIMATELY 184 NM NORTHWEST OF NOUMEA, NEW CALEDONIA, HAS TRACKED SOUTHEASTWARD AT 09 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 180000Z IS 10 FEET. NEXT WARNINGS AT 181500Z AND 190300Z.// ========================================================================= WTPS31 PGTW 20140118 15:00z MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE 10P (JUNE) WARNING NR 003// RMKS/ 1. TROPICAL CYCLONE 10P (JUNE) WARNING NR 003 01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 181200Z --- NEAR 23.0S 165.0E MOVEMENT PAST SIX HOURS - 170 DEGREES AT 13 KTS POSITION ACCURATE TO WITHIN 040 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 045 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT REPEAT POSIT: 23.0S 165.0E --- FORECASTS: 12 HRS, VALID AT: 190000Z --- 26.2S 165.6E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 045 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 160 DEG/ 16 KTS --- 24 HRS, VALID AT: 191200Z --- 29.2S 166.8E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY VECTOR TO 36 HR POSIT: 150 DEG/ 16 KTS --- 36 HRS, VALID AT: 200000Z --- 31.9S 168.7E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL VECTOR TO 48 HR POSIT: 135 DEG/ 17 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 201200Z --- 34.3S 171.7E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL --- REMARKS: 181500Z POSITION NEAR 23.8S 165.2E. TROPICAL CYCLONE 10P (JUNE), LOCATED APPROXIMATELY 81 NM SOUTHWEST OF NOUMEA, NEW CALEDONI, HAS TRACKED SOUTHWARD AT 13 KNOTS OVER THE PAST SIX HOURS. ANIMATED INFRARED (IR) SATELLITE IMAGERY DEPICTS A PARTIALLY-EXPOSED LOW-LEVEL CIRCULATION CENTER (LLCC) WITH SHALLOWING DEEP CONVECTION OVER THE SOUTHERN SEMI- CIRCLE. A 180939Z SSMIS IMAGE INDICATES THE BULK OF THE DEEP CONVECTION IS LIMITED TO THE SOUTHEAST QUADRANT WITH FRAGMENTED BANDING WRAPPING INTO THE LLCC. THE SYSTEM HAS STRUGGLED TO CONSOLIDATE OVER THE PAST 12 HOURS DUE TO MODERATE TO STRONG (20 TO 30 KNOTS) VERTICAL WIND SHEAR AND LAND INTERACTION. HOWEVER, A 181121Z ASCAT IMAGE SHOWS 35 TO 40 KNOT WINDS ASSOCIATED WITH A WELL- DEFINED CIRCULATION. THE INITIAL INTENSITY OF 40 KNOTS IS BASED ON THIS ASCAT IMAGE AND IS CONSISTENT WITH DVORAK CURRENT INTENSITY ESTIMATES RANGING FROM 35 TO 45 KNOTS. THERE IS GOOD CONFIDENCE IN THE CURRENT POSITION BASED ON THE IR ANIMATION AND ASCAT DATA. TC 10P IS TRACKING SOUTHEASTWARD ALONG THE WESTERN PERIPHERY OF THE SUBTROPICAL RIDGE AND IS FORECAST TO CONTINUE TRACKING SOUTHEASTWARD THROUGH THE FORECAST PERIOD. THE DYNAMIC MODELS ARE IN TIGHT AGREEMENT, THEREFORE, THERE IS HIGH CONFIDENCE IN THE JTWC FORECAST TRACK. SINCE TC 10P IS EMBEDDED WITHIN THE LEADING EDGE OF A DEEP UPPER-LEVEL TROUGH, THE SYSTEM IS EXPECTED TO GRADUALLY WEAKEN AND BEGIN EXTRA-TROPICAL TRANSITION AFTER TAU 36. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 181200Z IS 10 FEET. NEXT WARNINGS AT 190300Z AND 191500Z. ========================================================================= WTPS31 PGTW 20140119 03:00z MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE 10P (JUNE) WARNING NR 004// RMKS/ 1. TROPICAL CYCLONE 10P (JUNE) WARNING NR 004 01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 190000Z --- NEAR 26.3S 165.5E MOVEMENT PAST SIX HOURS - 175 DEGREES AT 21 KTS POSITION ACCURATE TO WITHIN 025 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 045 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT REPEAT POSIT: 26.3S 165.5E --- FORECASTS: 12 HRS, VALID AT: 191200Z --- 29.8S 167.0E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL VECTOR TO 24 HR POSIT: 150 DEG/ 16 KTS --- 24 HRS, VALID AT: 200000Z --- 32.6S 168.9E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL --- REMARKS: 190300Z POSITION NEAR 27.2S 165.9E. TROPICAL CYCLONE (TC) 10P (JUNE), LOCATED APPROXIMATELY 254 NM SOUTH OF NOUMEA, NEW CALEDONIA, HAS TRACKED SOUTHWARD AT 21 KNOTS OVER THE PAST SIX HOURS. ANIMATED MULTISPECTRAL SATELLITE IMAGERY (MSI) DEPICTS A FULLY-EXPOSED LOW-LEVEL CIRCULATION CENTER (LLCC) WITH DEEP CONVECTIVE BANDING OVER THE SOUTHERN SEMI-CIRCLE. A 182234Z METOP-A 89 GHZ MICROWAVE IMAGE INDICATES SHALLOW CONVECTION WRAPPING INTO A WELL-DEFINED CENTER, WHICH SUPPORTS THE CURRENT POSITION WITH HIGH CONFIDENCE. A 182150Z ASCAT IMAGE SHOWS 35 TO 40 KNOT WINDS, VALIDATING THE INITIAL INTENSITY OF 40 KNOTS. TC 10P IS CURRENTLY TRACKING SOUTHWARD ALONG THE WESTERN PERIPHERY OF THE SUBTROPICAL RIDGE AND WILL TURN SOUTHEASTWARD THROUGH THE FORECAST PERIOD. THE DYNAMIC MODELS ARE IN TIGHT AGREEMENT, THEREFORE, THERE IS HIGH CONFIDENCE IN THE JTWC FORECAST TRACK. ADDITIONALLY, TC 10P IS FORECAST TO UNDERGO EXTRA-TROPICAL TRANSITION (ETT) WITHIN THE NEXT 12 HOURS AND WILL COMPLETE ETT BY TAU 24. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 190000Z IS 10 FEET. NEXT WARNINGS AT 191500Z.// ========================================================================= WTPS31 PGTW 20140119 09:00z MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE 10P (JUNE) WARNING NR 005// RMKS/ 1. TROPICAL CYCLONE 10P (JUNE) WARNING NR 005 01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 190600Z --- NEAR 27.9S 165.7E MOVEMENT PAST SIX HOURS - 175 DEGREES AT 16 KTS POSITION ACCURATE TO WITHIN 035 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL REPEAT POSIT: 27.9S 165.7E --- FORECASTS: 12 HRS, VALID AT: 191800Z --- 31.6S 167.6E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL --- REMARKS: 190900Z POSITION NEAR 28.8S 166.2E. TROPICAL CYCLONE 10P (JUNE), LOCATED APPROXIMATELY 158 NM NORTHWEST OF KINGSTON, NORFOLK ISLAND, HAS TRACKED SOUTHWARD AT 16 KNOTS OVER THE PAST SIX HOURS. ANIMATED MULTISPECTRAL SATELLITE IMAGERY (MSI) DEPICTS A FULLY-EXPOSED LOW-LEVEL CIRCULATION CENTER (LLCC) THAT HAS BECOME ELONGATED AND IS UNDERGOING EXTRA-TROPICAL TRANSITION (ETT). RECENT ANIMATED WATER VAPOR IMAGERY INDICATES THE BULK OF THE CONVECTION ACROSS THE SOUTHERN SEMI-CIRCLE HAS SHALLOWED AS THE SYSTEM HAS TRACKED OVER RELATIVELY COOL SEA SURFACE TEMPERATURES. THE SYSTEM IS EXPECTED TO SUCCUMB TO INCREASING VERTICAL WIND SHEAR AS IT BECOMES FURTHER EMBEDDED IN THE BAROCLINIC BOUNDARY AND COMPLETES ETT AS A COLD CORE LOW OVER THE NEXT 12 HOURS. THIS IS THE FINAL WARNING ON THIS SYSTEM BY THE JOINT TYPHOON WRNCEN PEARL HARBOR HI. THE SYSTEM WILL BE CLOSELY MONITORED FOR SIGNS OF REGENERATION. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 190600Z IS 10 FEET.
Tropical cyclone tracks developed by Michael Bath using operational warnings and advisories.
Document: tropical_cyclone_june_jtwc_advisories.htm
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