I wanted to post a quick update this evening. IDa has behaved as I thought it would today, strengthening into a category 2 hurricane, and in fact at 105 mph it is only 6 mph short of category 3 status. As of now, i dont think Ida will reach cat 3 status and even if she did, she would probably weaken below it rather quickly.
I have attached a water vapor image showing clearly the upper low over Texas that is approaching Ida and inducing southerly flow aloft which will steer Ida towards the northern Gulf Coast, and I still like Mobile Bay as my landfall area sometime tomorrow night after midnight. Ida will likely weaken tomorrow and will only be a marginal category 1 hurrican or strong tropical storm as it crosses the coast line. A quick transition to extra-tropical status will occur as it is absorbed by the upper low and the trough complex over the southeast US on Tuesday.
Strong winds gusting to hurricane force will certainly affect the Gulf Coast region particularly from the florida panhandle to Mobile Bay. As the storm is abosorbed a wide swath of winds gusting to minimal tropical storm force will spread across the southeast thanks in part to a strong pressure gradient which will set up as a 1035mb high sets up in the northeast US. This will produce cold air damming and a deformation band of tropically charged rainfall across the northern half of Georgia and the Carolinas. This band will produce a widespread 2-4 inches of rain with the possibility of 5-7 inches of rain in areas where the bands set up the most efficiently.
Who would have though the most impactful tropical system of the year would come in November.
