Spoken
(Weather Hobbyist)
Fri Aug 05 2005 01:46 PM
Re: big picture

Ah, yes. I see now. Water vapor was simply disappearing into the thing's leading edge. There currently seems to be quite a bit of 'cloud cover' accumulating on its trailing edge however. Interesting.
Ref: http://www.ssd.noaa.gov/PS/TROP/DATA/RT/watl-wv-loop.html

BROAD MID/UPPER LEVEL CUT-OFF LOW IS IN THE E CARIBBEAN NEAR 15N64W WITH CYCLONIC FLOW COVERING THE AREA E OF 70W ACROSS THE LESSER ANTILLES AND IS PROVIDING DRY AIR THAT COVERS THE SAME AREA...THUS SERIOUSLY LIMITING CONVECTION OR SHOWER ACTIVITY.
Ref: http://www.nhc.noaa.gov/text/refresh/MIATWDAT+shtml/051037.shtml?