Atlantic Tropical Weather Outlook

Posted
000
ABNT20 KNHC 210516
TWOAT

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
200 AM EDT Wed Oct 21 2026

For the North Atlantic...Caribbean Sea and the Gulf of America:

Offshore of the East Coast of the United States (AL93):
A storm-force non-tropical low pressure area located a few hundred
miles off the mid-Atlantic United States coast is producing some
shower and thunderstorm activity primarily west and northwest of its
center. Satellite imagery indicates that the low is still frontal.
Over the next day or two, the low could gradually lose its frontal
features while it moves slowly north-northeastward over the Gulf
Stream, allowing the system to briefly develop subtropical
characteristics. By the end of the week, the system is expected to
accelerate northeastward away from the the eastern United States,
and environmental conditions are expected to become unfavorable for
additional 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 the High Seas
Forecasts and the Storm Warnings issued by the National Weather
Service.
* Formation chance through 48 hours...medium...40 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

$$
Forecaster Pierce/Pasch