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Atlantic Tropical Weather Discussion



000
AXNT20 KNHC 230622
TWDAT 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0605 UTC Wed Sep 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
0550 UTC.

...SPECIAL FEATURES...

The center of POST-TROPICAL CYCLONE BETA 23/0300 UTC, is inland in 
Texas, near 29.1N 95.4W. This position is about 60 km to the WSW of 
Galveston in Texas, and about 80 km to the NE of Matagorda in Texas. 
BETA is moving toward the NE, or 055 degrees, 07 knots. The 
estimated minimum central pressure is 1007 mb. The maximum sustained 
wind speeds are 30 miles per hour. Precipitation: scattered moderate 
to isolated strong is within 180 nm of the center in the NE 
quadrant. Broken to overcast multilayered clouds and isolated to 
widely scattered moderate is elsewhere from 27N northward from 93W 
westward, in the Gulf of Mexico. The hazards to the public and 
property will be: rainfall, flooding, and surf. Please, read the 
latest NHC Public Advisory at 
https://www.nhc.noaa.gov/text/MIATCPAT2.shtml, and the 
Forecast/Advisory at https://www.nhc.noaa.gov/text/MIATCMAT2.shtml, 
for more details. Please, also consult bulletins and forecasts from 
your local weather office.

The center of POST-TROPICAL CYCLONE TEDDY, at 23/0300 UTC, is 
near 42.8N 63.9W. TEDDY is moving toward the N, or 010 degrees, 
16 knots. The estimated minimum central pressure is 957 mb. The 
maximum sustained wind speeds are 70 knots with gusts to 90 
knots. Precipitation: widely scattered to scattered moderate and 
isolated strong is within 240 nm of the center in the N 
quadrant. Please, read the latest NHC Public Advisory at: 
https://www.nhc.noaa.gov/text/MIATCPAT5.shtml, and the Forecast/ 
Advisory at https://www.nhc.noaa.gov/text/MIATCMAT5.shtml, for 
more details. Please, also consult bulletins and messages from 
your local weather office.

The center of POST-TROPICAL CYCLONE PAULETTE, at 23/0300 UTC, is 
near 34.8N 20.0W. PAULETTE is moving toward the E, or 080 
degrees, 10 knots. The estimated minimum central pressure is 
1006 mb. The maximum sustained wind speeds are 35 knots with 
gusts to 45 knots. Precipitation: a cold front is about 345 nm 
to the WNW of PAULETTE. Rainshowers are between PAULETTE and the 
cold front from 28W eastward. Please, read the latest NHC Public 
Advisory at: https://www.nhc.noaa.gov/text/MIATCPAT3.shtml, and 
the Forecast/Advisory at 
https://www.nhc.noaa.gov/text/MIATCMAT3.shtml, for more details.

...TROPICAL WAVES...

An Atlantic Ocean tropical wave is along 23W/24W, from 16N 
southward, moving W 10 to 15 knots. Precipitation: isolated 
moderate is from 10N to 20N between 20W and 30W. 

An Atlantic Ocean tropical wave is along 34W/36W, from 20N 
southward, moving W 10 to 15 knots.
Precipitation: isolated moderate is from 10N to 20N between 30W 
and 43W.

...MONSOON TROUGH/ITCZ...

The monsoon trough passes through the coastal sections of Guinea 
near 10N14W, to 08N20W, 07N30W, and to 08N35W. Precipitation: 
isolated moderate to locally strong is from 10N southward from 
50W eastward. 

GULF OF MEXICO...

The center of POST-TROPICAL CYCLONE BETA 23/0300 UTC, is inland in 
Texas, near 29.1N 95.4W.This po sition is about 60 km to the WSW of 
Galveston in Texas, and about 80 km to the NE of Matagorda in Texas. 
BETA is moving toward the NE, or 055 degrees, 07 knots. The 
estimated minimum central pressure is 1007 mb. The maximum sustained 
wind speeds are 30 miles per hour. Precipitation: scattered moderate 
to isolated strong is within 180 nm of the center in the NE 
quadrant. Broken to overcast multilayered clouds and isolated to 
widely scattered moderate is elsewhere from 27N northward from 93W 
westward, in the Gulf of Mexico. The hazards to the public and 
property will be: rainfall, flooding, and surf.

A stationary front passes through 22N70W in the Atlantic Ocean, 
cutting across Cuba, to 25N86W in the SE Gulf of Mexico. 
Precipitation: isolated moderate to locally strong is from 27N 
southward from 91W eastward. Isolated to widely scattered 
moderate and isolated to locally strong is in the interior and 
coastal waters areas of Cuba. 

Broad low pressure, from the surface upward into the atmosphere, 
extends from the upper Texas coast of the Gulf coast, southward 
to Mexico, near 20N.

Tropical Depression Beta is weakening in southeastern Texas, and 
it will have no more impacts on the area waters. A stationary 
front, from the central Gulf of Mexico into the SE Gulf, will 
remain in  the southeast Gulf of Mexico, and gradually weaken 
through the week. Fresh E winds, to the east of this front, will 
diminish gradually on Thursday. 

CARIBBEAN SEA...

A stationary front passes through 22N70W in the Atlantic Ocean, 
cutting across Cuba, to 25N86W in the SE Gulf of Mexico. 
Precipitation: isolated moderate to locally strong is from 18N 
to the stationary front between 60W and Hispaniola. Isolated to 
widely scattered moderate and isolated to locally strong is in 
the interior and coastal waters areas of Cuba. 

The monsoon trough is along 09N/11N, from 73W in northern 
Colombia beyond Costa Rica, into the eastern Pacific Ocean. 
Precipitation: isolated moderate to locally strong is from 17N 
southward from 70W westward. The upper level wind flow that is 
in the Caribbean Sea from 70W westward is moving away from an 
upper level ridge, and toward an inverted trough. The trough is 
in the western sections of the Caribbean Sea, from the Yucatan 
Peninsula toward northern sections of Colombia. 

Northerly swell, previously generated by Hurricane Teddy and an 
early season cold front in the western Atlantic Ocean, will 
arrive overnight to the Atlantic Ocean passages and continue 
through Thursday night. Mainly gentle to moderate trade winds 
will dominate the basin through the forecast period, with the 
exception of moderate to fresh winds near the coast of Colombia 
and in the Gulf of Venezuela. 

ATLANTIC OCEAN...

A stationary front is along 32N57W to 27N60W and 22N70W, cutting 
across Cuba, to 25N86W in the SE Gulf of Mexico. Precipitation: 
widely scattered moderate to isolated strong is from 20N 
northward between 47W and 60W. Isolated moderate to locally 
strong is elsewhere from 18N to the stationary front between 60W 
and Hispaniola. isolated to widely scattered moderate and 
isolated to locally strong is in the interior and coastal waters 
areas of Cuba. 

A surface trough curves from 23N45W to 16N50W to 12N60W. 
Precipitation: isolated to widely scattered moderate and 
isolated strong is within 200 nm to the east of the trough, and 
within 120 nm to the west of the trough.

A surface trough is along 24N27W, to a 1013 mb low pressure 
center that is near 10N28W, to 18N27W. Precipitation: isolated 
moderate is within 120 nm on either side of the trough.

Swell previously, generated by Hurricane Teddy and a cold front 
that moved through the area at the start of the week, only will 
subside over the area gradually. Comparatively higher seas will 
persist through Thursday night. High pressure, building down the 
east coast of the U.S.A., will lead to fresh NE winds, to the N 
of the Bahamas through Wednesday. Gentle to moderate easterly 
winds take hold, after that time, for the remainder of the week.

$$
mt