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Advisories - Atlantic


NHC Atlantic

Active tropical cyclones in the Atlantic, Caribbean, and the Gulf of Mexico

Atlantic Tropical Weather Outlook


186 
ABNT20 KNHC 202344
TWOAT 

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
800 PM EDT Thu Sep 20 2018

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

A small but concentrated area of showers and thunderstorms
associated with a tropical wave is located about 650 miles east of
the Windward Islands.  The combination of dry mid-level air and
strong upper-level winds are expected to hinder any development of
this disturbance while it moves westward to west-northwestward at
10 to 15 mph.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 5 days...low...10 percent.

A non-tropical area of low pressure with gale-force winds, located
about 100 miles north-northeast of Bermuda, is moving southeastward
at about 15 mph. The combination of dry air associated with a
weakening frontal system and strong upper-level winds are expected
to inhibit any significant development for the next couple of days.
However, conditions could become a bit more conducive for this low
to gradually acquire some tropical characteristics early next week
while the system moves southward on Sunday, and then drifts westward
to the southwest of Bermuda on Monday.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 5 days...low...20 percent.

Another non-tropical low pressure system is forecast to develop
by Friday night over the central subtropical Atlantic Ocean midway
between Bermuda and the Azores.  Conditions are expected to be
conducive for the low to acquire some subtropical or tropical
characteristics, and a subtropical or tropical cyclone could form
late this weekend or early next week while the low meanders over the
central Atlantic Ocean.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...medium...60 percent.

A tropical wave is moving off the coast of Guinea in western Africa.
Some slow but gradual development of this system is possible during
the next several days as the disturbance moves westward at 15 to 20
mph across the low latitudes of the eastern tropical Atlantic Ocean.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 5 days...medium...40 percent.

$$
Forecaster Stewart



There are no tropical cyclones at this time.
No tropical cyclones as of Fri, 21 Sep 2018 03:48:05 GMT

Advisories - Eastern Pacific

NHC Eastern North Pacific

Active tropical cyclones in the Eastern North Pacific

Eastern North Pacific Tropical Weather Outlook


093 
ABPZ20 KNHC 202355
TWOEP 

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 PM PDT Thu Sep 20 2018

For the eastern North Pacific...east of 140 degrees west longitude:

An area of low pressure located about 1100 miles southwest of the
southern tip of the Baja California peninsula continues to produce
a broad area of disorganized showers and thunderstorms. Development.
if any, of this system should be slow to occur due to the proximity
of dry air and only marginally favorable upper-level winds for the
next few days. This disturbance is expected to move slowly
west-northwestward at around 10 mph during the next several days.
* Formation chance through 48 hours...low...20 percent.
* Formation chance through 5 days...low...20 percent.

2. An area of low pressure is expected to form in a couple of days
well to the south of the southern coast of Mexico. Some development
is possible early next week while the system moves nearly parallel
and well offshore of the southwestern coast of Mexico.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...medium...40 percent.

$$
Forecaster Stewart



There are no tropical cyclones at this time.
No tropical cyclones as of Fri, 21 Sep 2018 03:48:05 GMT