Atlantic Tropical Weather Outlook

454
ABNT20 KNHC 200504
TWOAT 
Tropical Weather Outlook
NWS National Hurricane Center Miami FL
200 AM EDT Tue Oct 20 2026
For the North Atlantic...Caribbean Sea and the Gulf of America:
Off the East Coast of the United States (AL93):
A storm-force non-tropical low pressure area remains attached 
to an occluded frontal boundary a few hundred miles off the North 
Carolina coast. This low could develop some organized deep 
convection and gradually lose its frontal features over the next 
couple of days while it moves slowly north-northeastward over the 
Gulf Stream. By the end of the week, the system is expected to
accelerate northeastward away from the the eastern United States, 
where environmental conditions are expected to become unfavorable 
for subtropical or tropical development. 
Regardless of the status of the system, high winds, coastal 
flooding, and dangerous surf are expected along portions of the U.S. 
East Coast during the next few days. For more information, please 
consult statements and warnings from local National Weather Service 
offices and the Weather Prediction Center, along with High Seas 
Forecasts and Storm Warnings issued by the National Weather Service.
* Formation chance through 48 hours...low...30 percent.
* Formation chance through 7 days...medium...40 percent.
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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