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Tropical Hurricane Sally

Rainfall is going to be adding up fast. Yikes...


The National Weather Service in Mobile has issued a

* Flash Flood Warning for...
Baldwin County in southwestern Alabama...
Southeastern Mobile County in southwestern Alabama...
Escambia County in northwestern Florida...
Okaloosa County in northwestern Florida...
Santa Rosa County in northwestern Florida...

* Until 645 AM CDT Wednesday.

* At 11 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Up to 16 inches of rain have
fallen close to the coast over portions of southern Baldwin County
Alabama and into the western Florida Panhandle.
Flash flooding is
already occurring.

HAZARD...Life threatening flash flooding. Tropical rainbands
producing flash flooding.

SOURCE...Doppler radar.

IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...

Downtown Mobile, Midtown Mobile, Pensacola, Prichard, Ferry Pass,
Brent, West Pensacola, Wright, Fort Walton Beach, Ensley, Daphne,
Tillmans Corner, Warrington, Crestview, Fairhope, Saraland,
Niceville, Gonzalez, Destin and Eglin AFB.

This is ALREADY progressing into a serious situation, with locally

30" of rain during the next 24 hours and within this warned area.
 
Sally has a chance at Category 3. The upper level environment has created a perfect environment for a tropical system in less than optimal, cooler waters that results from upwelling to produce convection from jet stream perturbations without shearing the system. Sally completely merged with a PV riding along the the subtropical jet early this afternoon, and her nicely oriented connection with the subtropical jet has provided great upper level forcing that's helping overcome the upwelled water to produce intense convection. The conditions illustrated on the 18z GFS 200-400Mb streamline map shows the perfect positioning of Sally in the right front quadrant of the jet stream, as well as tucked within a shortening, neutral to negatively tilted half wavelength located between the base of this trough and a shortwave ridge that is helping produce upper level divergence. This setup looks barotropic and is currently causing rapid intensification. These conditions will only last for 24.
 
Earlier I would have said no but I wouldn't rule it out now it's really made a comeback from last night and this morning no doubt

102 kt FL definitely could see 100 mph next update

Yep. I thought it would only make it to minimal category 1 last night. Now it looks like we might be retiring this one.
 
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