A deep wave has moved off the coast....
Posted by JAC on 7/1/2009, 4:09 pm
...but will have to get past SAL before any convection can fire.

Looks like a rotation on MIMIC-TPW is associated with it.





TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
205 PM EDT WED JUL 01 2009


...TROPICAL WAVES...

A NEW TROPICAL WAVE HAS MOVED OFF THE W AFRICAN COAST AND IS
APPROXIMATELY ALONG 20W S OF 13N. RECENT VISIBLE SATELLITE
IMAGERY IN THIS AREA SHOWS THIS WELL-DEFINED FEATURE MOVING W
NEAR 15 KT IN THE WAKE OF A LARGE MESOSCALE CONVECTIVE SYSTEM
THAT RECENTLY MOVED OFF THE W AFRICAN COAST. ALSO...CYCLONIC
MOTION OF LOW LEVEL CLOUDS IS EVIDENT NEAR THIS FEATURE.
TIME-HEIGHT ANALYSES FROM DAKAR SENEGAL INDICATE AN ABRUPT SHIFT
OF ANOMALOUS FLOW BELOW THE 600 MB LEVEL FROM NORTHEASTERLY TO
SOUTHEASTERLY AROUND 01/0900 UTC...INDICATING THAT WAVE PASSAGE
LIKELY OCCURRED AT DAKAR AROUND THAT TIME. THIS FEATURE
COINCIDES WITH A DISTINCT MAXIMUM IN DEEP LAYER MOISTURE BASED
ON THE TOTAL PRECIPITABLE WATER PRODUCT FROM CIMSS. THUS...A
TROPICAL WAVE WILL BE ADDED TO THE 01/1800 UTC SURFACE ANALYSIS
OVER THE TROPICAL E ATLC. CONSIDERABLE LOW/MID-LEVEL DRY SAHARAN
AIR IS LIMITING THE AREAL COVERAGE OF DEEP CONVECTION NEAR THIS
WAVE...HOWEVER SCATTERED MODERATE CONVECTION IS FROM 6N-10N
BETWEEN 13W-22W.




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Fuggedabout any CV development for a while - JAC, 7/1/2009, 11:19 am
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