[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 230606
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
205 AM EDT Sun Aug 23 2020

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
0530 UTC.

...SPECIAL FEATURES...

The center of Tropical Storm LAURA, at 23/0600 UTC, is near
18.6N 70.1W. LAURA is about 25 km to the WSW of Santo Domingo in
the Dominican Republic. LAURA is moving WNW, or 285 degrees, 14
knots. The estimated minimum central pressure is 1003 mb. The
maximum sustained wind speeds are 45 knots with gusts to 55
knots. Precipitation: scattered to numerous strong is from 15N
to 20N between 67W and 74W. The precipitation covers parts of
Puerto Rico and much of Hispaniola, and the surrounding coastal
waters of each island. Please read the latest NHC Public
Advisory at https://www.nhc.noaa.gov/text/MIATCPAT3.shtml and
Forecast/ Advisory at
https://www.nhc.noaa.gov/text/MIATCMAT3.shtml for more details.

The center of Tropical Storm MARCO, at 23/0600 UTC, is near
23.1N 86.6W. MARCO is about 220 km to the NW of the western tip
of Cuba. MARCO is moving NNW, or 335 degrees, 11 knots. The
estimated minimum central pressure is 994 mb. The maximum
sustained wind speeds are 55 knots with gusts to 65 knots.
Precipitation in the Gulf of Mexico: scattered to numerous
strong is about 130 nm to the north of the Yucatan Channel.
Scattered moderate to strong also is within 220 nm to the north
of NW Cuba, and within 240 nm to the west of SW Florida. Please
read the latest NHC Public Advisory at
https://www.nhc.noaa.gov/text/MIATCPAT4.shtml and
Forecast/Advisory at
https://www.nhc.noaa.gov/text/MIATCMAT4.shtml, for more details.

..TROPICAL WAVES...

An Atlantic Ocean tropical wave is along 30W from 21N southward,
moving W 10 to 15 knots. Precipitation: any nearby precipitation
is related to the monsoon trough.

A Caribbean Sea tropical wave is along 69W, from 14N southward,
moving W 10 knots.
A Caribbean Sea tropical wave is along 77W/78W, from Jamaica
southward, moving W 15 knots. The monsoon trough is along 11N73W
in NE Colombia near the border with Venezuela, to 12N80W, to
13N85W in Nicaragua, and westward, through Honduras, El
Salvador, and Guatemala, into the eastern Pacific Ocean.
Precipitation: isolated moderate to locally strong is from 04N
to 13N between the 69W tropical wave and 81W. The precipitation
covers interior sections of Colombia and Venezuela, parts of the
Caribbean Sea, and the coastal waters of Colombia in the eastern
Pacific Ocean. Widely scattered moderate to isolated strong is
in central Nicaragua.

A tropical wave is along 91W from 17N southward, moving westward
through Guatemala, 10 to 15 knots. Precipitation: scattered to
numerous strong is inland in Guatemala and Mexico, from 15N to
19N between 90W and 90W, in Guatemala and in southern sections
of Mexico. Widely scattered to scattered moderate and isolated
strong is elsewhere, from 15N to 20N between 87W and 100W. The
precipitation covers parts of the SW corner of the Gulf of
Mexico, the NW corner of the Caribbean Sea, parts of the eastern
Pacific Ocean coastal waters of Mexico, parts of Honduras,
Belize, Guatemala, and Mexico.

...MONSOON TROUGH/ITCZ...

The monsoon trough passes through the coastal sections of
Mauritania near 18N16W, to 18N20W 16N22W 11N24W 11N35W, and
09N50W. Precipitation: scattered moderate to strong is from 08N
to 10.5N between 57W and 60W. Isolated moderate to locally
strong is elsewhere from 10N southward from 60W eastward.

GULF OF MEXICO...

A tropical wave is along 91W from 17N southward, moving westward
through Guatemala, 10 to 15 knots. Precipitation: scattered to
numerous strong is inland in Guatemala and Mexico, from 15N to
19N between 90W and 90W, in Guatemala and in southern sections
of Mexico. Widely scattered to scattered moderate and isolated
strong is elsewhere, from 15N to 20N between 87W and 100W. The
precipitation covers parts of the SW corner of the Gulf of
Mexico, the NW corner of the Caribbean Sea, parts of the eastern
Pacific Ocean coastal waters of Mexico, parts of Honduras,
Belize, Guatemala, and Mexico.

Tropical Storm Marco center near 22.8N 86.3W 996 mb at 11 PM EDT
is moving NNW at 11 kt. Maximum sustained winds 55 kt gusts 65
kt. Marco will intensify to a hurricane near 24.3N 87.1W Sun
morning with maximum sustained winds 65 kt gusts to 80 kt; reach
to near 26.3N 87.9W Sun evening with maximum sustained winds 70
kt gusts 85 kt. It will maintain intensity as it reaches to near
28.3N 88.9W Mon morning and move inland to near 30.5N 92.0W Tue
morning. Marco will weaken to a tropical depression
near 30.9N 93.5W Tue evening and dissipate late Wed.

Tropical Storm Laura, currently in Hispaniola, will move across
western Cuba Mon and reach the southeastern Gulf of Mexico near
23.4N 83.0W Mon evening with maximum sustained winds 50 kt gusts
to 60 kt. Laura will intensify to a hurricane as it reaches near
24.7N 85.8W Tue morning with maximum sustained winds 60 kt gusts
75 kt; to near 26.2N 88.0W Tue evening with maximum sustained
winds 75 kt gusts 90 kt and move inland near 29.8N 91.2W Wed
evening. Atlantic Ocean high pressure will build westward, into
the eastern Gulf of Mexico, in the wake of Laura.

CARIBBEAN SEA...

A Caribbean Sea tropical wave is along 69W, from 14N southward,
moving W 10 knots. A Caribbean Sea tropical wave is along
77W/78W, from Jamaica southward, moving W 15 knots. The monsoon
trough is along 11N73W in NE Colombia near the border with
Venezuela, to 12N80W, to 13N85W in Nicaragua, and westward,
through Honduras, El Salvador, and Guatemala, into the eastern
Pacific Ocean.
Precipitation: isolated moderate to locally strong is from 04N
to 13N between the 69W tropical wave and 81W. The precipitation
covers interior sections of Colombia and Venezuela, parts of the
Caribbean Sea, and the coastal waters of Colombia in the eastern
Pacific Ocean. Widely scattered moderate to isolated strong is
in central Nicaragua.

Tropical Storm Marco center near 22.8N 86.3W 996 mb at 11 PM EDT
is moving NNW at 11 kt. Maximum sustained winds 55 kt gusts 65
kt. Marco will intensify to a hurricane near 24.3N 87.1W Sun
morning with maximum sustained winds 65 kt gusts to 80 kt; reach
to near 26.3N 87.9W Sun evening with maximum sustained winds 70
kt gusts 85 kt.

Tropical Storm Laura center near near 18.5N 69.7W 1003 mb at 11
PM EDT is moving WNW at 18 kt. Maximum
sustained winds 45 kt gusts 55 kt. Laura will maintain intensity
as it moves inland over the Dominican Republic to near 19.3N
72.3W Sun morning; inland to near 20.6N 76.0W Sun evening;
inland to near 22.1N 79.6W Mon morning; then into the extreme
southeastern Gulf of Mexico near 23.4N 83.0W Mon evening with
maximum sustained winds 50 kt gusts to 60 kt.

ATLANTIC OCEAN...

An upper level cyclonic circulation center is within 850 nm to
900 nm to the ENE of T.S. Laura. Precipitation: isolated
moderate covers the Atlantic Ocean from 12N northward between
44W and 65W.

Broad surface anticyclonic wind flow covers the rest of the
Atlantic Ocean. A surface ridge extends from Georgia, to 29N56W,
beyond 33N41W.

Tropical Storm Laura center near near 18.5N 69.7W 1003 mb at 11
PM EDT is moving WNW at 18 kt. Maximum sustained winds 45 kt
gusts 55 kt. Laura will maintain intensity as it moves inland
over the Dominican Republic to near 19.3N 72.3W Sun morning;
inland to near 20.6N 76.0W Sun evening; inland to near
22.1N 79.6W Mon morning; then into the extreme southeastern Gulf
of Mexico near 23.4N 83.0W Mon evening with maximum sustained
winds 50 kt gusts to 60 kt. Relatively weak high pressure will
cover the rest of the area.

$$
mt
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