boca wrote:Are you guys certain the area to the south is the southern extension of a tropical wave of which 93L is part of?
A TROPICAL WAVE IS ALONG 47W S OF 17N MOVING W NEAR 10 KT. LAST
NIGHT THIS WAVE LOOKED LIKE IT WAS BECOMING ABSORBED BY THE
LARGE CIRCULATION OF FLORENCE. HOWEVER...SATELLITE IMAGERY NOW
SUGGEST THAT IT IS A SEPARATE FEATURE. AN AREA OF LOW PRES HAS
ALSO FORMED ON THIS WAVE NEAR 21N/22N. THIS WAVE WILL LIKELY BE
MADE HIGHER AMPLITUDE ON THE 00 UTC ANALYSIS TO REFLECT THIS.
FURTHER DEVELOPMENT...IF ANY...SHOULD BE SLOW TO OCCUR AS UPPER
LEVEL WINDS ARE UNFAVORABLE.
http://www.nhc.noaa.gov/tafb/ATSA_18Z.gif
It could also be part of a flare up it of the ITCZ.