[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 110520
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
105 AM EDT Mon Mar 11 2019

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
0500 UTC.

...SPECIAL FEATURE...

...Caribbean Sea Gale Warning...

NE gale-force winds will be present in the Caribbean Sea, for
the next 18 hours, near the coast of Colombia, from 11N to 13N
between 74W and 76W. The sea heights will range from 10 feet to
15 feet. The wind speeds will slow down during the afternoon
hours on Monday, and then return to gale-force, from Monday
night until Tuesday morning. Please read the latest High Seas
Forecast issued by the National Hurricane Center under the
AWIPS/WMO header MIAHSFAT2/FZNT02 KNHC or the website
https://www.nhc.noaa.gov/text/MIAHSFAT2.shtml for more details.

...MONSOON TROUGH/ITCZ...

The monsoon trough passes through the coastal areas of Sierra
Leone near 08N13W to 03N15W and the Equator along 20W. The ITCZ
continues from the Equator along 20W, to 02S33W and 03S39W at
the coast of Brazil. Isolated moderate to locally strong
rainshowers are from 04N southward between 13W and 19W, and from
02N southward between 43W and 50W. Rainshowers are possible
elsewhere from 10W eastward, and from 05N southward from 20W
westward.

GULF OF MEXICO...

Broad upper level westerly wind flow spans the entire Gulf of
Mexico.

An east-to-west oriented surface ridge is in the central Gulf of
Mexico.

A stationary front extends from east Texas, toward the border
area with Mexico from 28N to 29N along 100W.

Surface high pressure will cover the area through Monday night.
A cold front will enter the NW Gulf of Mexico on Tuesday, and
then move northward as a warm front on Wednesday. Another cold
front will enter the NW Gulf of Mexico on Thursday night.

CARIBBEAN SEA...

A surface trough is in the western part of the Dominican
Republic, along 71W/72W, from 16N to 20N. Rainshowers are
possible from 16N to 20N between the Mona Passage and Jamaica,
including across Hispaniola.

High pressure to the north of the area will support fresh to
strong trade winds in much of the central Caribbean Sea through
Friday night. Gale-force winds are expected each night near the
coast of Colombia. Moderate to fresh trade winds will continue
across the remainder of the area.

ATLANTIC OCEAN...

Upper level cyclonic wind flow covers the area that is from 20N
to 30N between 60W and 70W. Isolated moderate rainshowers are in
that same area.

A surface ridge extends from 1028 mb high pressure center that
is near Bermuda, to 29N75W, across N central Florida, into the
Gulf of Mexico beyond 28N88W.

An upper level trough passes through 32N51W to 21N51W to 14N55W.
The trough is supporting a cold front that passes through
32N49W, to 28N50W and 24N53W. Isolated to widely scattered
moderate and locally strong rainshowers cover the area that is
from 23N northward between 42W and 53W.

Broad surface anticyclonic wind flow covers the area that is
from 20N northward from 40W eastward.

High pressure will prevail across the area through Monday. A
cold front, entering the NW waters on Monday, will move across
the waters N of 27N through Tuesday night. High pressure will
develop again in the northern waters from Wednesday through
Thursday night, and then shift eastward on Friday.

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

$$
mt
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