berrywr
(Weather Analyst)
Fri Aug 24 2012 06:12 PM
Re: Issac & 24/12Z Upper Air Package
Dry Saharan Air Layer; what we call the SAL; it's dry between 600 millibars and 300 millibars and it is death to a tropical cyclone if caught up in it; thus far only a piece of it is entraining into the cyclone.