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TC 02P(MAL) peaked as a CAT 1 US while tracking just west of FIJI//1503utc



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SOUTHERN HEMISPHERE/SOUTH PACIFIC: TC 02P(MAL). ESTIMATED CURRENT INTENSITY IS 75 KNOTS: + 20 KNOTS OVER 24H.

0223111012  65S1623E  15
0223111018  66S1629E  15
0223111100  68S1634E  15
0223111106  70S1651E  20
0223111112  70S1661E  25
0223111118  70S1670E  25
0223111200  70S1678E  25
0223111206  75S1689E  25
0223111212  81S1696E  30
0223111218  87S1702E  30
0223111300  96S1708E  35
0223111306 110S1720E  45
0223111312 125S1732E  55
0223111318 136S1739E  60
0223111400 146S1745E  65
0223111406 161S1751E  65
0223111412 172S1756E  70
0223111418 187S1766E  75
0223111500 203S1780E  75

WARNING 9 ISSUED AT 15/03UTC.

TC 02P(MAL) peaked as a CAT 1 US while tracking just west of FIJI//1503utc


SATELLITE ANALYSIS, INITIAL POSITION AND INTENSITY DISCUSSION: ANIMATED MULTISPECTRAL SATELLITE IMAGERY (MSI) SHOWS A DEEP MEDIUM-SIZED SYSTEM THAT HAS BEGUN TO UNRAVEL WITH ASSOCIATED CONVECTION BECOMING FRAGMENTED BUT HAS MAINTAINED AN INTENSE CORE. THE SOUTHERN FORWARD FLANK OF THE CYCLONE HAS BECOME ELONGATED WITH EXPOSURE TO THE STRONG WESTERLIES. THE CENTRAL DENSE OVERCAST HAS MAINTAINED A RAGGED REMNANT EYE. THE INITIAL POSITION IS PLACED WITH HIGH CONFIDENCE BASED ON THE REMNANT EYE IN THE MSI LOOP THAT LINED UP WELL WITH A CIRCULATION FEATURE IN A COMPOSITE RADAR LOOP FROM FIJI. THE INITIAL INTENSITY IS ASSESSED WITH MEDIUM  CONFIDENCE BASED ON OVERALL ASSESSMENT OF AGENCY AND AUTOMATED DVORAK ESTIMATES.
SATELLITE ANALYSIS, INITIAL POSITION AND INTENSITY DISCUSSION: ANIMATED MULTISPECTRAL SATELLITE IMAGERY (MSI) SHOWS A DEEP MEDIUM-SIZED SYSTEM THAT HAS BEGUN TO UNRAVEL WITH ASSOCIATED CONVECTION BECOMING FRAGMENTED BUT HAS MAINTAINED AN INTENSE CORE. THE SOUTHERN FORWARD FLANK OF THE CYCLONE HAS BECOME ELONGATED WITH EXPOSURE TO THE STRONG WESTERLIES. THE CENTRAL DENSE OVERCAST HAS MAINTAINED A RAGGED REMNANT EYE. THE INITIAL POSITION IS PLACED WITH HIGH CONFIDENCE BASED ON THE REMNANT EYE IN THE MSI LOOP THAT LINED UP WELL WITH A CIRCULATION FEATURE IN A COMPOSITE RADAR LOOP FROM FIJI. THE INITIAL INTENSITY IS ASSESSED WITH MEDIUM CONFIDENCE BASED ON OVERALL ASSESSMENT OF AGENCY AND AUTOMATED DVORAK ESTIMATES.

FORECAST REASONING.  SIGNIFICANT FORECAST CHANGES: THERE ARE NO SIGNIFICANT CHANGES TO THE FORECAST FROM THE PREVIOUS WARNING.  FORECAST DISCUSSION: TC MAL WILL CONTINUE TO TRACK SOUTHEASTWARD ALONG THE WESTERN SIDE OF THE STEERING STR FOR THE DURATION OF THE  FORECAST. THE ENVIRONMENT WILL BECOME HIGHLY UNFAVORABLE DUE TO SHARPLY  INCREASING VERTICAL WIND SHEAR AND COOLING SEA SURFACE TEMPERATURES,  LEADING TO A RAPID DETERIORATION. CONCURRENTLY BY TAU 36, TC 02P WILL  COMMENCE SUBTROPICAL TRANSITION AS IT ENCOUNTERS THE STRONG WESTERLIES,  AND BY TAU 48 WILL BECOME A 40-KT SUBTROPICAL SYSTEM WITH AN EXPANDING WIND FIELD.
FORECAST REASONING. SIGNIFICANT FORECAST CHANGES: THERE ARE NO SIGNIFICANT CHANGES TO THE FORECAST FROM THE PREVIOUS WARNING. FORECAST DISCUSSION: TC MAL WILL CONTINUE TO TRACK SOUTHEASTWARD ALONG THE WESTERN SIDE OF THE STEERING STR FOR THE DURATION OF THE FORECAST. THE ENVIRONMENT WILL BECOME HIGHLY UNFAVORABLE DUE TO SHARPLY INCREASING VERTICAL WIND SHEAR AND COOLING SEA SURFACE TEMPERATURES, LEADING TO A RAPID DETERIORATION. CONCURRENTLY BY TAU 36, TC 02P WILL COMMENCE SUBTROPICAL TRANSITION AS IT ENCOUNTERS THE STRONG WESTERLIES, AND BY TAU 48 WILL BECOME A 40-KT SUBTROPICAL SYSTEM WITH AN EXPANDING WIND FIELD.


MODEL DISCUSSION: NUMERICAL MODELS REMAIN IN TIGHT AGREEMENT WITH A GRADUAL AND EVEN SPREAD TO JUST 85NM BY TAU 48, LENDING HIGH CONFIDENCE TO THE JTWC TRACK FORECAST. THERE IS ONLY MEDIUM CONFIDENCE IN THE INTENSITY FORECAST DUE TO UNCERTAINTIES IN THE WIND FIELD TYPICAL WITH SUBTROPICAL TRANSITION.
MODEL DISCUSSION: NUMERICAL MODELS REMAIN IN TIGHT AGREEMENT WITH A GRADUAL AND EVEN SPREAD TO JUST 85NM BY TAU 48, LENDING HIGH CONFIDENCE TO THE JTWC TRACK FORECAST. THERE IS ONLY MEDIUM CONFIDENCE IN THE INTENSITY FORECAST DUE TO UNCERTAINTIES IN THE WIND FIELD TYPICAL WITH SUBTROPICAL TRANSITION.


RCM3 - HV | 2023-11-14 17:48UTC: 1 MAXIMUM WINDS: 81 KNOTS

TC 02P(MAL) peaked as a CAT 1 US while tracking just west of FIJI//1503utc
Rédigé par PATRICK HOAREAU le Wednesday, November 15th 2023 à 08:50