[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 011047
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
647 AM EDT Sat Apr 1 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 0600 UTC surface analysis and satellite imagery through
1045 UTC.

...ITCZ/MONSOON TROUGH...

The Monsoon Trough remains over Africa. The Intertropical
Convergence Zone extends from 03N14W to the coast of South
America near 01S46W. Scattered moderate convection was noted
within 100 nm on either side of the ITCZ.

...DISCUSSION...

GULF OF MEXICO...

A weakening stationary front extends from 27N82W to 25N87W. South
of this feature, a squrface trough extends from 26N81W to 25N83W.
Scatterometer data depicts gentle to moderate southeasterly winds
west of 93W while light to gentle easterly winds prevail elsewhere.
Expect for the front ans surface trough to dissipate today.

CARIBBEAN SEA...

A large upper-level anticyclone centered over northern Venezuela
dominates the flow over the Caribbean with strong mid to upper
level subsidence over the basin. At the surface, conditions
remain relatively tranquil across the basin. Light to moderate
trade winds were noted over most of the basin except south of 15N
between 68W-74W where moderate to fresh winds are depicted in
scatterometer data. Little change in the overall conditions is
expected over the weekend.

...HISPANIOLA...

Strong subsidence is noted on water vapor imagery over the
island. The latest visible satellite imagery showed locally
broken to overcast low clouds with possible embedded showers
mainly over the southwest portion of the island. Little change in
overall conditions is expected through the weekend.

ATLANTIC OCEAN...

A large middle to upper-level low is centered over the north-
central Atlantic supports a cold front that enters the discussion
area near 31N77W to 28N80W. Minimal shower activity is on either
side of the front. To the east, a 1021 mb high is located near
29N60W. A weakening cold front extends from 30N40W to 26N49W,
then it transitions to a surface trough from that point to 25N59W.
A pre-frontal trough extends from 31N36W to 23N44W. No significant
convection is observed with these features at this time. The
remainder of the basin is dominated by a surface ridge, anchored
by a 1022 mb high near 23N37W. Expect for the front and troughs
over the central Atlantic to dissipate during the next 24 hours.
The cold front over the west Atlantic will continue moving east.

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

$$

ERA
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