For the North Atlantic...Caribbean Sea and the Gulf of Mexico:
1. A developing non-tropical low pressure system over the central
Atlantic between Bermuda and the Azores is producing winds to gale
force. Gradual development of this system is possible while it
moves slowly westward, and a tropical or subtropical storm could
form on Tuesday or Wednesday before upper-level winds become
unfavorable. Additional information on this system can be found in
High Seas Forecasts issued by the National Weather Service.
Formation chance through 48 hours...medium...40 percent.
Formation chance through 5 days...medium...50 percent.
2. Showers and thunderstorms located over the western Atlantic several
hundred miles west-southwest of Bermuda are associated with a trough
of low pressure. This system is forecast to move northwestward and
a non-tropical low pressure area is expected to form when the system
interacts with a frontal boundary in a couple of days. The low
could acquire some subtropical characteristics later in the week
while it meanders off the east coast of the United States.
Additional information on this system can also be found in High
Seas Forecasts issued by the National Weather Service.
Formation chance through 48 hours...low...near 0 percent.
Formation chance through 5 days...low...30 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