Official Discussion issued by the National Hurricane Center

Eleven (AL112023) DATA RELEASED: 8/30/2023 3:00:00 AM UTC

Copy of official data

Tropical Depression Eleven Discussion Number   3
NWS National Hurricane Center Miami FL       AL112023
1100 PM AST Tue Aug 29 2023

The depression has lost some organization since this morning. Only a 
few disorganized showers are present to the east of the depression's 
slightly elongated surface wind field. The initial intensity remains 
30 kt, but this is higher than 00Z Dvorak estimates from TAFB or 
SAB. An ASCAT-B pass just missed the center of the depression, but 
did not show any indication of winds higher than about 25 kt in the 
eastern portion of the depression's wind field, so its possible the 
NHC intensity analysis is generous.

The depression has moved erratically since it formed, with its 
recent movement estimated near 285/2 kt. Continued meandering is 
likely tonight, but the cyclone should begin to lift slowly 
northward by tomorrow, moving in low-level steering currents between 
Hurricane Franklin and a ridge over the central Atlantic. The latest 
NHC forecast is a little slower than the previous, remaining close 
to the multi-model track consensus.

It's still possible that the depression could briefly organize 
enough deep convection to become a tropical storm. However, this 
does not appear to be the most likely scenario anymore and it is 
not supported by any dynamical models. Upper-level outflow from 
Franklin should cause the depression to become a post-tropical 
remnant low within about 2 days, if not sooner, and most models 
forecast it will dissipate within the next 2-3 days.


INIT  30/0300Z 28.2N  52.4W   30 KT  35 MPH
12H  30/1200Z 28.6N  52.8W   30 KT  35 MPH
24H  31/0000Z 29.4N  53.0W   30 KT  35 MPH
36H  31/1200Z 30.4N  53.0W   30 KT  35 MPH
48H  01/0000Z 32.4N  52.9W   30 KT  35 MPH...POST-TROP/REMNT LOW
60H  01/1200Z...DISSIPATED

Forecaster D. Zelinsky