[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 080605
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
205 AM EDT Fri Sep 8 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...

The center of Hurricane Irma, at 08/0600 UTC is near 21.3N
72.4W, or about 45 nm to the ENE of Great Inagua Island, and
about 510 nm to the ESE of Miami in Florida. Irma is moving WNW,
290 degrees, 14 knots. The estimated minimum central pressure is
920 mb. The maximum sustained wind speeds are 145 kt with gusts
to 175 kt. Convective precipitation: numerous strong within 120
nm of the center in the S semicircle, and within 90 nm of the
center in the N semicircle. Widely scattered moderate to
isolated strong elsewhere from 17N to 27N between 65W and 77W.
Please read the latest NHC Intermediate Public Advisory under
AWIPS/WMO headers MIATCPAT1/WTNT31 KNHC and, the Forecast/
Advisory under AWIPS/WMO headers MIATCMAT1/WTNT21 KNHC for more
details.

The center of Hurricane Jose, at 08/0300 UTC is near 15.6N
53.9W, or about 1100 nm ESE of Hurricane Irma. Jose is moving W,
280 degrees, 16 knots. The estimated minimum central pressure is
966 mb. The maximum sustained wind speeds are 105 kt with gusts
to 130 kt. Convective precipitation: numerous strong within 90
nm of the center from NE to S, and within 30 nm to 60 nm of the
center elsewhere. isolated moderate to locally strong from 12N
to 24N between 47W and 60W. Please read the latest NHC
Intermediate Public Advisory under AWIPS/WMO headers
MIATCPAT2/WTNT32 KNHC and, the Forecast/Advisory under AWIPS/WMO
headers MIATCMAT2/WTNT22 KNHC for more details.

The center of Hurricane Katia, at 08/0600 UTC, is in the SW
corner of the Gulf of Mexico near 21.5N 95.1W, or about 150 nm
NNE of Veracruz in Mexico, or 160 nm ESE of Tampico, Mexico.
Katia is moving W, 265 degrees, 3 knots. The estimated minimum
central pressure is 982 mb. The maximum sustained wind speeds
are 75 kt with gusts to 90 kt. Convective precipitation:
scattered to numerous strong from 20N to 23N between 94W and
97W. isolated moderate to locally strong elsewhere from 24N
southward, including in interior sections of Mexico and in the
Gulf of Mexico, between 89W and 99W in the coastal plains of
Mexico. Please read the latest NHC Intermediate Public Advisory
under AWIPS/WMO headers MIATCPAT3/WTNT33 KNHC and, the
Forecast/Advisory under AWIPS/WMO headers MIATCMAT3/WTNT23 KNHC
for more details.

...TROPICAL WAVES...

An Atlantic Ocean tropical wave is along 14N34W, to a 1011 mb
low pressure center that is near 09N37W, to 05N39W. The wave is
moving westward 10 to 15 knots. Convective precipitation:
isolated moderate to locally strong from 07N to 14N between
34W and 40W.

...ITCZ/MONSOON TROUGH...

The monsoon trough passes through 14N17W at the coast of
Senegal, to 12N20W, 10N30W, and to 07N41W. The ITCZ continues
from 07N41W to 07N46W and 08N49W. Convective precipitation:
scattered moderate to isolated strong from 05N to 08N between
14W and 29W. isolated moderate to locally strong elsewhere from
14N southward from 60W eastward.

...DISCUSSION...

...THE GULF OF MEXICO...

Hurricane Katia is in the SW corner of the area.
Please read the SPECIAL FEATURES section for more information.

Upper level anticyclonic wind flow, and multilayered clouds and
isolated moderate to locally strong convective precipitation are
elsewhere in the area, away from Hurricane Katia, to the NE of
the line that runs from 24N98W to 26N90W beyond 30N81W. A cold
front passes through 32N75W in the Atlantic Ocean, to the
Florida east coast near 29N81W, to 28N85W in the Gulf of Mexico.
A stationary front continues from 28N85W to 27N90W and 25N94W.

...THE CARIBBEAN SEA...

Hurricane Irma is passing through the SE part of the Bahamas at
this moment. Irma is forecast to move along the northern coastal
waters of Cuba through Saturday.

An upper level cyclonic circulation center is near 19N83W to the
south of Jamaica. Upper level cyclonic wind flow covers the area
that is from 80W westward. The N central part of the Caribbean
Sea is being affected by the circulation that encompasses
Hurricane Irma.

The monsoon trough is along 10N from 74W in Colombia beyond N
Costa Rica. Convective precipitation: rainshowers are possible
from 13N southward from 73W westward.

...HISPANIOLA...

Hurricane Irma is passing through the SE part of the Bahamas at
this moment. Hispaniola still is under the influence of
Hurricane Irma, from the surface into the upper levels of the
atmosphere. Scattered moderate to widely scattered strong
rainshowers and thunderstorms cover the island from 70W
westward.

...THE ATLANTIC OCEAN...

Please read the SPECIAL FEATURES section, for information about
Hurricane Irma, and Hurricane Jose.

Upper level SW wind flow, and isolated moderate to locally
strong convective precipitation, are to the NW of the line
26N80W beyond 32N67W. A cold front passes through 32N75W in the
Atlantic Ocean, to the Florida east coast near 29N81W, to 28N85W
in the Gulf of Mexico.

An upper level trough passes through a 34N38W cyclonic
circulation center, to 29N40W, and to 24N42W. Convective
precipitation: isolated moderate to locally strong within 180 nm
on either side of 37N36W 33N38W 29N44W. Rainshowers are possible
also elsewhere from 20N northward from 40W westward.

An upper level trough extends from a 26N20W cyclonic circulation
center, to 21N22W, and 15N28W. No significant deep convective
precipitation is apparent.

Surface anticyclonic wind flow covers the Atlantic Ocean from
22N northward between Africa and 60W.

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

$$
MT
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