000
ABNT20 KNHC 211726
TWOAT

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
200 PM 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 has acquired some
subtropical characteristics since yesterday, including some
organized thunderstorm activity and less defined frontal features
near the center. This system has the potential to become a
subtropical storm tonight or early Thursday as it accelerates to the
northeast before upper-level winds and water temperatures become
unfavorable for further development on Friday.

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, including
hurricane-force extratropical wind warnings, 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...50 percent.
* Formation chance through 7 days...medium...50 percent.

Subtropical Central Atlantic:
A trough of low pressure located several hundred miles
east-southeast of Bermuda is producing a large area of disorganized
showers and thunderstorms. Some development of this system is
possible during the next day or two while it moves slowly
north-northeastward. Upper-level winds are forecast to become too
strong for further development by the weekend.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 7 days...low...10 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 Blake