Atlantic Tropical Weather Outlook

910
ABNT20 KNHC 182338
TWOAT 
Tropical Weather Outlook
NWS National Hurricane Center Miami FL
800 PM EDT Sun Oct 18 2026
For the North Atlantic...Caribbean Sea and the Gulf of America:
Off the East Coast of the United States:
A storm-force non-tropical low pressure area is developing along a 
frontal boundary tonight off the southeast coast of the United 
States. This low is likely to move slowly and erratically over the 
next couple of days while it initially remains non-tropical. Later 
this week, if the system stays over the Gulf Stream, environmental 
conditions could become more conducive for the low to develop some 
subtropical characteristics. A subtropical cyclone could form over 
the second half of this week as the system begins moving generally 
northeastward, offshore of the eastern United States. Regardless of 
development, this system will cause high winds, coastal flooding, 
and dangerous surf along portions of the U.S. East Coast. Please 
consult statements and warnings from local National Weather Service 
offices and the Weather Prediction Center for more information, 
along with High Seas Forecasts and Storm Warnings issued by the 
National Weather Service.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 7 days...medium...40 percent.
&&
High Seas Forecasts issued by the National Weather Service
can be found under AWIPS header NFDHSFAT1, WMO header FZNT01 
KWBC, and online at ocean.weather.gov/shtml/NFDHSFAT1.php