000
AXNT20 KNHC 092356
TWDAT 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
756 PM EDT Sun Apr 9 2017

Tropical Weather Discussion for North America, Central America
Gulf of Mexico, Caribbean Sea, northern sections of South
America, and Atlantic Ocean to the African coast from the
Equator to 32N. The following information is based on satellite
imagery, weather observations, radar and meteorological analysis.

Based on 1800 UTC surface analysis and satellite imagery through 
2315 UTC.

...ITCZ/MONSOON TROUGH...
The Monsoon Trough extends from the African coast near 07N12W to 
04N12W to 01N20W. The Intertropical Convergence Zone continues 
from 01N20W to 03S25W to 01S40W to the South American coast near 
02S45W. Scattered moderate to strong convection is along the
Monsoon trough from 01N-05N between 10W-16W.  

...DISCUSSION...

GULF OF MEXICO...

A 1025 mb high is centered off the coast of South Carolina near
33N77W. 10-15 kt E to SE surface flow is over the Gulf of Mexico.
Radar imagery shows the Gulf is void of precipitation. In the 
upper levels, a ridge is over the Gulf of Mexico with axis along 
90W. Strong subsidence is over the entire Gulf. Expect little
change over the next 24 hours.

CARIBBEAN SEA...

15-20 kt tradewinds are over the Caribbean Sea with the weakest 
winds S of Hispaniola, and the strongest winds along the coast of
Colombia. Isolated moderate convection is over N Colombia. More
isolated moderate convection is over the Yucatan Peninsula, E
Cuba, Jamaica, and Hispaniola. Scattered showers are over E
Panama, Costa Rica, N Nicaragua, and E Honduras. More scattered
showers are over Puerto Rico,and the Leeward Islands. In the 
upper levels, zonal flow is over the Caribbean Sea. Upper level 
moisture is over E Cuba, Hispaniola, Puerto Rico, and N Colombia.
Strong subsidence is over the remainder of the Caribbean. Expect 
over the next 24 hours for the NE Caribbean to continue to have
isolated moderate convection and scattered showers due to the tail
end of a quasi-stationary front over the W Atlantic.

...HISPANIOLA...

Presently isolated moderate convection and scattered showers are
over Hispaniola due to the tail end of a quasi-stationary front 
over the W Atlantic. Expect little change over the next 24 hours.

ATLANTIC OCEAN...

A quasi-stationary front is over the W Atlantic from 31N60W to
22N70W to E Cuba near 20N76W. Scattered moderate convection is 
within 120 nm E of front N of 28N. Scattered showers prevail
within 120 nm of remainder of the front. Further east, a 1015 mb 
surface low is located over the E Atlantic near 24N37W. Scattered
showers are from 23N-26N between 30W-38W. The tail end of a
dissipating stationary front is also over the E Atlantic from
31N23W to 29N25W. Scattered showers are within 90 nm of the front.
Of note in the upper levels, an upper level trough is over the E
Atlantic N of 25N between 60W-80W. A large upper level low is
located over the E Atlantic near 23N36W. Expect over the next 24
hours for the E Atlantic front to remain quasi-stationary with
continued scattered moderate convection and scattered showers.
Also expect the E Atlantic front to fully dissipate S of 31N. 

For additional information please visit 
http://www.hurricanes.gov/marine

$$
Formosa