Official Discussion issued by the National Hurricane Center

Epsilon (AL272020) DATA RELEASED: 10/21/2020 3:00:00 AM UTC

Copy of official data

Hurricane Epsilon Discussion Number   8
NWS National Hurricane Center Miami FL       AL272020
1100 PM AST Tue Oct 20 2020

The tropical cyclone has continued to become better organized on 
satellite images this evening, with the Central Dense Overcast 
becoming increasingly symmetric.  Also the eye, which was 
intermittently apparent earlier in the evening, has become better 
defined.  Epsilon is being upgraded to a hurricane, consistent with 
a Dvorak intensity estimate from SAB.  This is the tenth hurricane 
of the season.

Epsilon is moving northwestward, or around 310/11 kt, but beginning 
to turn more toward a west-northwestward heading.  The hurricane is 
expected to move generally west-northwestward on Wednesday in 
response to a mid-level high pressure system to its north and 
northwest.  In a couple of days, the high is forecast to shift 
eastward and this should cause Epsilon to turn toward the 
north-northwest and pass to the east of Bermuda, with the center 
coming closest to the island in around 48 hours.  In 3 to 4 
days, the  hurricane should turn northward and move through a break 
in the subtropical ridge.  By the end of the forecast period, the 
system should accelerate north-northeastward to northeastward as it 
begins to move into the higher-latitude westerlies.  The official 
forecast track is very close to both the previous NHC prediction 
and the corrected multi-model dynamical consensus.

Delta is expected to strengthen some more as it moves over 
marginally warm waters and within an environment of moderate 
vertical shear during the next day or so.  In 36 to 48 hours, the 
oceanic heat content below the cyclone is expected to become very 
low which should limit further intensification.  The official 
intensity forecast is a little above the latest model consensus.  
By day 5, the global models show the cyclone interacting and 
merging with a frontal zone so the system will likely be 
extratropical by that time.

Key Message:

1. Epsilon is forecast to remain at hurricane strength by the time 
it makes its closest approach to Bermuda late Thursday.  While 
it is too soon to determine the exact details of Epsilon's track 
and intensity near the island, tropical storm conditions are 
possible on Bermuda beginning Thursday with dangerous surf 
conditions also likely.


INIT  21/0300Z 28.5N  56.8W   65 KT  75 MPH
12H  21/1200Z 29.2N  58.5W   70 KT  80 MPH
24H  22/0000Z 29.9N  59.8W   75 KT  85 MPH
36H  22/1200Z 31.0N  60.6W   75 KT  85 MPH
48H  23/0000Z 32.2N  61.1W   75 KT  85 MPH
60H  23/1200Z 33.5N  61.6W   75 KT  85 MPH
72H  24/0000Z 34.6N  62.0W   75 KT  85 MPH
96H  25/0000Z 38.4N  58.8W   70 KT  80 MPH
120H  26/0000Z 44.0N  45.5W   60 KT  70 MPH...POST-TROP/EXTRATROP

Forecaster Pasch