JTWC：REMAINS LOW
(2) THE AREA OF CONVECTION PREVIOUSLY LOCATED NEAR 19.3N
137.2E, IS NOW LOCATED NEAR 19.6N 137.5E, APPROXIMATELY 564 NM
NORTHWEST OF ANDERSEN AFB, GUAM. ANIMATED MULTISPECTRAL SATELLITE
IMAGERY DEPICTS A BROAD, ALBEIT DEFINED, FULLY-EXPOSED LOW-LEVEL
CIRCULATION CENTER (LLCC) WITH FLARING DEEP CONVECTION IN THE
WESTERN SEMI-CIRCLE. A 280415Z AMSU-B MICROWAVE IMAGE REVEALS A
DEFINED LLCC WITH DRY AIR BEGINNING TO BE ENTRAINED FROM THE NORTH
AND SOUTH OF THE CIRCULATION. RECENT SCATTEROMETERY DATA INDICATES A
WEAK CIRCULATION WITH ONLY 10 TO 15 KNOT MAX WINDS ALONG THE WESTERN
AND SOUTHERN SEMI-CIRCLES. UPPER-LEVEL ANALYSIS INDICATES MODERATE
TO STRONG (20-30 KNOTS) VWS WITHIN THE EASTERLY FLOW. MAXIMUM
SUSTAINED SURFACE WINDS ARE ESTIMATED AT 10 TO 15 KNOTS. MINIMUM SEA
LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1008 MB. DUE TO THE LACK OF
DEEP CONVECTION AND APPROACHING DRY AIR, THE POTENTIAL FOR THE
DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24
HOURS REMAINS LOW.