000
ABNT20 KNHC 211937.
TWOAT
Special tropical weather forecast.
NWS National Hurricane Center Miami Florida
340 PM EDT Wednesday October 21, 2026.
For the North Atlantic Ocean...the Caribbean Sea and the Gulf of America:
A special outlook issued to raise formation probabilities for AL93.
Off the East Coast of the United States (AL93):
Updated: Showers and thunderstorm activity has improved.
Organized in conjunction with a storm force low pressure area.
Located a few hundred miles from the mid-Atlantic United States.
beach. The system continued to acquire subtropical.
characteristics today and became separated from facades. if.
If these trends continue, a subtropical storm may form later.
afternoon or night as it accelerates to the northeast.
Regardless of the state of the system, strong winds, coastal.
Flooding and dangerous surf are expected across parts of the US. East Coast in the coming days. For more information, incl.
Hurricane force extratropical wind warnings, please consult.
Statements and warnings from local National Weather Service offices.
and the weather forecasting center, along with the open sea.
Storm forecasts and warnings issued by the National Weather Service.
service.
* Chance of formation up to 48 hours... High...70 percent.
* Chances of formation up to 7 days... High...70 percent.
Subtropical Central Atlantic:.
A trough of low pressure is located several hundred kilometers away.
East-southeast Bermuda produces a large area of unorganized.
Showers and thunderstorms. A particular development of this system is
Possible over the next day or two as it moves slowly.
north-northeast. Upper level winds are also expected.
Strong for further development until the end of the week.
The chance of building up to 48 hours... Low, 10 percent. The chance of building up to 7 days... Low, 10 percent.
High seas forecasts issued by the National Weather Service can be.
Found under AWIPS title NFDHSFAT1, WMO title FZNT01 KWBC, and.
Online at ocean.weather.gov/shtml/NFDHSFAT1.php.
The Blake/Reinhart forecaster.