[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 141701
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
101 PM EDT Wed Mar 14 2018

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 1200 UTC surface analysis and satellite imagery through
1700 UTC.

...MONSOON TROUGH/ITCZ...

The monsoon trough extends from Liberia on the African coast near
09N13W to 06N16W. The ITCZ continues from 06N16W to 03S40W.
Scattered showers are noted along the ITCZ.

...DISCUSSION...

GULF OF MEXICO...

High pressure centered across the Central Plains is generally
maintaining moderate NE winds over the Gulf waters except over the
Bay of Campeche, where a tighter pressure gradient over southern
Mexico is supporting fresh winds. The high will migrate southeast
from the Central Plains to the northeast Gulf during the next 24
hours. Moderate to fresh northeast winds will gradually veer to
southeast as the high pressure moves. Return flow on the west
side of the high will become moderate to fresh on Friday.

CARIBBEAN SEA...

A stationary front extends from eastern Cuba near 20N78W to
Belize near 18N88W. The front will dissipate through today. Fresh
to strong trades are observed north of the front as well as the
waters south of 18N and east of 80W. A pressure gradient is
supporting fresh to locally strong winds mainly south of 14N
between 53W-60W. Elsewhere, light to moderate trades and
relatively dry conditions prevail and will continue during the
next several days as mid to upper-level ridging extending over the
basin from the southeast maintains a benign weather pattern.

ATLANTIC OCEAN...

A frontal boundary extends across the west-central Atlantic
analyzed as a stationary front from 31N60W to 21N77W. Winds along
the front continue to subside as the parent low lifts farther
north. Scattered showers are observed along and up to 60 nm on
either side of the front. The convection associated with the
front will shift eastward and diminish tonight as the front
weakens. A secondary cold front pushing SE from the Mid Atlantic
States will cause the northern part of the front to begin moving
east again by tonight before the two boundaries merge. The
combined front will then dissipate into a trough by the end of the
week. High pressure will build from the northwest behind the
front by tonight and shift east into the west Atlantic along 27N
this weekend. A broad area of high pressure prevails across the
central and eastern Atlantic, anchored by a 1026 mb high centered
near 27N41W. The high is maintaining moderate to fresh northeast
winds over the tropical Atlantic north of the ITCZ between 30W
and the Windward Islands.

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

$$

ERA
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