Re: More and more models shifting N and East-where is it gonna go?
Posted by
Chris in Tampa on 9/18/2013, 10:48 pm
Jeff Masters blog talks some about it:
http://www.wunderground.com/blog/JeffMasters/show.html
"Invest 95L headed for Bay of Campeche
Waterlogged Mexico has yet another tropical rain-making system to worry about this week. An area of disturbed weather (Invest 95L) over the Yucatan Peninsula will emerge into the Southwestern Gulf of Mexico's Bay of Campeche by Wednesday night. Satellite loops show that 95L already has a pronounced spin and a respectable area of heavy thunderstorms. Wind shear is moderate, and ocean temperatures are warm, 29°C (84°F.) A hurricane hunter flight is scheduled to investigate 95L on Thursday afternoon.
Invest 95L will likely stay trapped in the Bay of Campeche
Wind shear is expected to be low to moderate over the next five days. There is some dry air over the Bay of Campeche, but I doubt this will be an impediment to development, given the low to moderate wind shear. NHC gave the disturbance 2-day development odds of 70% and 5-day odds of 80% in their 8 am EDT Wednesday Tropical Weather Outlook. Steering currents will be weak in the Bay of Campeche over the next five days, and most of the models predict that 95L will stay trapped there, moving slowly and erratically. However, the UKMET model and approximately 20% of the 20 individual forecasts from the GFS ensemble and European Center ensemble predict that 95L will turn north next week and hit the U.S. Gulf Coast. A cold front and associated upper-level trough of low pressure are expected to push southeastwards over the Gulf of Mexico on Saturday, and it is possible that the upper-level westerly winds associated with this weather system will reach far enough south to pull 95L out of the Bay of Campeche. It typically takes a stronger upper-level trough of low pressure to flush a tropical cyclone out of the Bay of Campeche, though, and 95L will most likely stay put. Regardless, tropical moisture from 95L will likely stream northeastwards along the cold front over much of the U.S. Gulf Coast on Saturday and Sunday, bringing heavy rains of 2 - 4". A non-tropical low pressure system is expected to form along this front over the Southeast U.S. on Sunday, spreading heavy rains up the East Coast early next week."
He also has coverage of the Mexican flooding, in part due to now hurricane Manuel.
Also worth checking out is one of his previous posts on the Colorado flooding which has a video of a mud slide as it happened:
http://www.wunderground.com/blog/JeffMasters/comment.html?entrynum=2525 |
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