B. TROPICAL DISTURBANCE SUMMARY:
(1) AN AREA OF CONVECTION HAS PERSISTED NEAR 20.0N 90.4E,
APPROXIMATELY 160 NM SOUTH-SOUTHWEST OF CHITTAGONG, BANGLADESH.
ANIMATED ENHANCED INFRARED SATELLITE IMAGERY DEPICTS RELATIVELY
DISORGANIZED BANDS OF FLARING CONVECTION WITH SOME CYCLONIC TURNING
IN THE MID-LEVELS. A 311742 METOP-B ASCAT IMAGE SHOWS EVIDENCE OF
LIMITED TROUGHING IN THE REGION WITH 20 KNOTS OF WIND. A 010011Z
SSMIS 91GHZ IMAGE SHOWS VERY LITTLE CONVECTIVE ORGANIZATION AT THIS
TIME. CURRENTLY WARM SEA SURFACE TEMPERATURES ARE NEAR 30 CELSIUS,
AND VERTICAL WIND SHEAR VALUES ARE BETWEEN 15 AND 25 KNOTS. STRONGER
SHEAR VALUES ARE PRESENT TO THE NORTHWEST AND NORTHEAST AS THE
EASTERLY JET IS WELL ESTABLISHED, HOWEVER THERE IS NOTABLE
DIFFLUENCE OVER THE SYSTEM. MAXIMUM SUSTAINED SURFACE WINDS ARE
ESTIMATED AT 15 TO 20 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED
TO BE NEAR 1001 MB. DUE TO THE MARGINAL ENVIRONMENT THE POTENTIAL
FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE
NEXT 24 HOURS IS LOW.
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