[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 060525
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
125 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 0000 UTC surface analysis and satellite imagery through
0515 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 crosses the western African coast near 07N13W
and extends to 05N14W, where the ITCZ begins and extends to
01S30W to the South American coast near 00N49W. Scattered
moderate convection is from 06S-05N between 12W-35W.

...DISCUSSION...

...THE GULF OF MEXICO...

A cold front extends across the Florida Straits with convection to
the east of it affecting the west Atlantic. The basin is dominated
by a surface ridge anchored by a 1015 mb high centered near
25N95W. 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 front to continue moving east
away from the Gulf waters. Surface ridging will prevail through
the next 24 hours.

...THE CARIBBEAN SEA...

A cold front extends from W Cuba near 22N82W to the Yucatan
Peninsula near 17N88W. A pre-frontal trough extends from 21N81W
to 15N84W. Abundant cloudiness and scattered showers are observed
along these features and in its vicinity mainly west of 75W. To
the south, a surface trough extends across Central America
supporting scattered moderate convection over Costa Rica, Panama
and Colombia, and their adjacent waters south of 11N.
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 extend from eastern Cuba to
northern Honduras with convection.

...HISPANIOLA...

Presently isolated showers remain over the island especially over
the higher terrain. 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 31N77W to
23N81W. Scattered moderate convection prevails along and within
270 nm east of the front mainly north of 23N. 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
convection.

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

$$

ERA
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