ABIO10 PGTW 011800
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN 
OCEAN/011800Z-021800ZAPR2021//
RMKS/
1. NORTH INDIAN OCEAN AREA (MALAY PENINSULA WEST TO COAST OF AFRICA):
   A. TROPICAL CYCLONE SUMMARY: NONE.
   B. TROPICAL DISTURBANCE SUMMARY:
      (1) THE AREA OF CONVECTION (INVEST 90B) PREVIOUSLY LOCATED 
NEAR 8.8N 94.5E IS NOW LOCATED NEAR 10.4N 95.8E, APPROXIMATELY 212 
NM NORTHWEST OF PHUKET, THAILAND. ANIMATED ENHANCED INFRARED (EIR) 
SATELLITE IMAGERY AND A PARTIAL 011128Z SSMIS 91GHZ MICROWAVE IMAGE 
DEPICT A DISORGANIZED DISTURBANCE WITH FLARING CONVECTION AND AN 
EXPOSED, ELONGATED, POORLY DEFINED LOW LEVEL CIRCULATION (LLC). 
ENVIRONMENTAL ANALYSIS SHOWS INVEST 90B IS IN A MARGINAL ENVIRONMENT 
FOR DEVELOPMENT WITH WEAK RADIAL OUTFLOW ALOFT AND MODERATE (15-20 
KNOTS) VERTICAL WIND SHEAR, OFFSET BY WARM (29-30C) SEA SURFACE 
TEMPERATURES. GLOBAL MODELS ARE IN GENERAL AGREEMENT THAT INVEST 90B 
WILL NOT SIGNIFICANTLY INTENSIFY AND WILL REMAIN BELOW TROPICAL 
STORM INTENSITY WHILE TRACKING NORTH-NORTHEASTWARD. MAXIMUM 
SUSTAINED SURFACE WINDS ARE ESTIMATED AT 15 TO 20 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 REMAINS LOW.
      (2) NO OTHER SUSPECT AREAS.
   C. SUBTROPICAL SYSTEM SUMMARY: NONE.
2. SOUTH INDIAN OCEAN AREA (135E WEST TO COAST OF AFRICA):
   A. TROPICAL CYCLONE SUMMARY: NONE.
   B. TROPICAL DISTURBANCE SUMMARY: NONE.
   C. SUBTROPICAL SYSTEM SUMMARY: NONE.//
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