[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 061046
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
646 AM EDT Sat May 6 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.

...SPECIAL FEATURES...

...GULF OF MEXICO GALE WARNING...

The pressure gradient present over the northern Gulf of Mexico is
supporting gusts to gale-force mainly north of 28N and east of
90W. These conditions are expected until 06/1200 UTC. Please read
the latest National Hurricane Center High Seas Forecast under
AWIPS/WMO headers MIAHSFAT2/FZNT02 KNHC for more details.

...ATLANTIC OCEAN GALE WARNING...

A cold front extends across the west Atlantic from 31N77W to
23N80W. Westerly winds of 20-30 kt with frequent gusts to 35
kt and sea heights reaching 8 feet are expected the north of 29N
and west of the front. These conditions are expected until
06/1200 UTC. Please read the latest National Hurricane Center High
Seas Forecast under AWIPS/WMO headers MIAHSFAT2/FZNT02 KNHC for
more details.

...ITCZ/MONSOON TROUGH...

The Monsoon Trough remains over Africa. The ITCZ begins near
04N13W and continues to 01S27W to the South American coast near
01S45W. Scattered moderate convection is from 07S-04N between
10W-32W.

...DISCUSSION...

...THE GULF OF MEXICO...

The basin is dominated by a surface ridge anchored by a 1017 mb
high centered near 26N95W. A small area of strong winds with
frequent gale-force gusts prevails across the northeast Gulf.
Please refer to the section above for details. Gentle to moderate
anticyclonic winds prevail elsewhere. Expect for the surface
ridge to prevail through the next 24 hours.

...THE CARIBBEAN SEA...

A cold front extends from central Cuba near 22N80W to 19N83W then
becomes stationary from that point to near 16N88W. A pre-frontal
trough extends from 20N78W to 15N83W. Abundant cloudiness and
scattered showers are observed along these features and in the
vicinity mainly west of 75W. To the south, the Monsoon Trough
extends along 10N between 75W-83W supporting isolated moderate
convection over Costa Rica, Panama and Colombia, and their
adjacent waters south of 12N. Scatterometer data depicts moderate
to fresh trades prevailing across the majority of the basin
mainly east of the front while light to moderate westerly winds
prevail west of the front. In 24 hours, expect for the front to
continue weakening as the northern portion drifts east with
convection.

...HISPANIOLA...

No significant convection is present across the island at this
time. Expect for pre-frontal convection to affect the island
during the next 24 hours.

ATLANTIC OCEAN...

A cold front extends from the west Atlantic near 31N75W to
23N79W. Scattered moderate convection prevails along and within
270 nm east of the front mainly north of 22N. Frequent gusts to
gale-force are expected north of 29N and west of the front.
Please refer to the section above for details. A broad area of
high pressure extends across the remainder of the basin with fair
weather. Expect during the next 24 hours for the front in the west
Atlantic to continue moving east with convection. Another cold
front will enter the central Atlantic from the north with isolated
showers.

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

$$

ERA

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