21.   Satellite pictures indicated a weakening frontal trough across the central Mona Passage northeast into the Atlantic.

22.   Synopsis...Frontal trough across mona passage to drift east across Puerto Rico later today.

23.   The frontal trough is expected to weaken through Wednesday, but at the same time it should remain close enough as to keep clouds and showers in the forecast.

24.   The frontal trough will continue to move southeast across our islands this afternoon with an increasing probability of rain.

25.   The weak frontal trough located north of the local islands continues to dissipate.

26.   This cloudiness was associated with a weak nearly stationary frontal trough.

27.   Tue through thu...Light se winds tue as frontal trough approaches local area.

28.   With associated frontal trough extending s to windward passage to move e through tue.