1.   The showers will be more concentrated over New England, where cooling air at high-levels will make the atmosphere more unstable.

2.   Tuck, however, suggests that the organic molecules in the primal sea could have become gradually more concentrated over tens of millions of years.

3.   But they will be most concentrated over interior and west sections of Puerto Rico.

4.   Moisture associated with this wave presently is concentrated over the Caribbean waters to our south.

5.   Most of the shower activity for tonight will be isolated and concentrated over the east and southeast sections of Puerto Rico.

6.   Most of the shower activity will be concentrated over the west interior to west and should end by nightfall.

7.   Most shower activity will be concentrated over the eastern coastal areas of Puerto Rico during the night.

8.   Most of the activity will be concentrated over the north and east coasts of Puerto Rico.

9.   Scattered showers occurred but were concentrated over mainly the adjacent coastal waters.

10.   Scattered to numerous showers and isolated thunderstorms will occur, but they will be most concentrated over interior and west sections of Puerto Rico.