Nana dissipates; no Omar yet

Sometimes the National Hurricane Center forecasters get punchy in the wee hours of the morning:

NANA HASN’T BEEN PRODUCING ENOUGH CONVECTION TO QUALIFY FOR TROPICAL CYCLONE STATUS FOR MANY HOURS…SO IT’S TIME TO SING NA NA HEY HEY KISS HER GOODBYE.

Heh.

Meanwhile T.D. 15 is still threatening to become Omar, but hasn’t managed it yet. Tropical Storm Watches are up for Puerto Rico and environs.

And in the Western Caribbean, Invest 99L could become T.D. 16 today. Alan Sullivan is concerned about it:

TD #15 is a huge rainmaker, destined to move NE as a tropical storm, deluge the Virgin and Leeward Islands, then head out into the North Atlantic. [99L] could be even more troublesome. I see marked similarities to the formative stages of deadly Mitch in 1998. It seems likely that I will be making hurricane updates for some time.