Upper level low just to the NW of the wave
A TROPICAL WAVE EXTENDS FROM 24N64W TO 16N66W MOVING WNW AT
10-15 KT. THE WAVE COINCIDES WITH A MID/UPPER LEVEL LOW CENTERED
NEAR 25N68W. MODERATE TOTAL PRECIPITABLE WATER VALUES ACCOMPANY
THIS SYSTEM N OF 17N...AS THIS MOISTURE CONTINUES TO ADVECT
NORTHWARD DUE TO A WEAKNESS IN THE SUBTROPICAL RIDGE BETWEEN
60W-70W. NO DEEP CONVECTION IS OBSERVED AT THE MOMENT DUE TO THE
LACK OF SUFFICIENT LOW-LEVEL MOISTURE. ONLY A FEW ISOLATED
SHOWERS ARE NOTED WITHIN 30 NM IN THE VICINITY OF THE WAVE AXIS
NORTH OF PUERTO RICO.
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