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KF5JRV > WX 10.09.17 16:26l 125 Lines 5381 Bytes #999 (0) @ NA
BID : 3663_KF5JRV
Read: GUEST
Subj: NWS NHC Atlantic Tropical WX 9/10
Path: IZ3LSV<IQ2LB<IK1NHL<CX2SA<HG8LXL<XE1FH<N9PMO<NS2B<KF5JRV
Sent: 170910/1349Z 3663@KF5JRV.#NWAR.AR.USA.NA BPQK6.0.14
000
AXNT20 KNHC 101200
TWDAT
Tropical Weather Discussion
NWS National Hurricane Center Miami FL
800 AM EDT Sun Sep 10 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 0600 UTC surface analysis and satellite imagery through
1015 UTC.
...SPECIAL FEATURES...
At 10/1200 UTC, the center of Hurricane Irma is near 24.5N 81.5W
or about 15 NM ESE of Key West, Florida, moving NNW or 325
degrees at 7 knots. The estimated minimum central pressure is
down to 929 mb. The maximum sustained wind speeds are 115 kt with
gusts to 140 kt. Numerous strong convection is noted within 120
nm of the center. Scattered moderate to isolated strong convection
is elsewhere from 20N-31N between 78W-84W. Squalls extend from
the Caribbean Sea at 20N to N Florida at 31N, and between the N
Bahamas and the SE Gulf of Mexico. 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.
At 10/1200 UTC, the center of Hurricane Jose is near 21.2N 65.3W,
or about 210 NNM NW of the northern Leeward Islands, moving NW or
310 degrees at 14 knots. The estimated minimum central pressure
is 944 mb. The maximum sustained wind speeds are 115 kt with gusts
to 140 kt. Numerous strong convection is noted within 75 nm of
the center of Jose. Scattered moderate convection is elsewhere
from 19N-23N between 62W-67W. 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.
...TROPICAL WAVES...
A tropical wave is has off the west coast of Africa with axis
from 17N22W to a 1011 mb low near 10N24W to 04N24W moving W at 10
to 15 kt. This wave coincides with a sharp 700 mb trough. SSMI
TPW satellite imagery indicates the wave is embedded in an area of
deep layer moisture. Scattered moderate to isolated strong
convection is W of the low from 08N-12N between 25W-28W.
A tropical wave extends from 20N53W to 07N54W, moving west at 15
knots. This wave coincides with moderate troughing in 700 mb wind
fields. SSMI TPW satellite imagery indicates the wave is embedded
in an area of deep layer moisture. Scattered moderate to isolated
strong convection is from 13N-16N between 52W-57W.
...ITCZ/MONSOON TROUGH...
The monsoon trough extends from the W coast of Africa near 15N17W
to 10N22W to 10N39W. The ITCZ continues from 10N39W to 11N45W to
10N51W. The ITCZ continues W of a tropical wave from 10N54W to
08N60W. Aside from the convection associated with the
Atlantic tropical wave, widely scattered moderate convection is
from 07N-10N between 32W-44W.
...DISCUSSION...
...THE GULF OF MEXICO...
Hurricane Irma is over the E Gulf of Mexico E of 84W to include W
Cuba and the Florida Peninsula. See above. Tropical storm force
winds extend 170 NE, 170 SE, 120 SW, 180 NW, from the center (nm).
Hurricane Irma is presently moving towards the lower Florida Keys.
Elsewhere scattered showers are over the Bay of Campeche S of 20N.
In the upper levels, an upper level low is centered over N
Alabama near 33N87W.
...THE CARIBBEAN SEA...
Hurricane Irma is moving away from the north coast of Cuba.
Bands of strong convection are over portions of W Cuba producing
very heavy rainfall and flash flooding. Convective bands extend
southward in the Caribbean to 20N. Hurricane Jose is moving away
from the Leeward Islands. Scattered showers still remain over NE
Puerto Rico. Outside of the influence of Irma, a light to moderate
sub-normal trade wind regime prevails over most of the Caribbean
as the pressure gradient to the south of Irma and Jose remains
weak. Seas outside the influence of Hurricanes Irma and Jose are
generally in the 3-5 ft range over the eastern Caribbean, and 2-4
ft over the western Caribbean.
...HISPANIOLA...
Fair weather is presently over Hispaniola. Scattered showers and
thunderstorms are SW of the Island. Expect scattered showers and
isolated thunderstorms to build over the island during afternoon
and evening maximum heating.
...THE ATLANTIC OCEAN...
Please see the special features section above for information
concerning Hurricanes Irma and Jose. Besides Hurricanes Irma and
T.S.Jose, gentle to moderate winds and seas in the 5-7 ft range
prevail. Seas over the extreme western north Atlantic waters are
in the 7-11 foot range as a result of swell generated by
Hurricane Irma. These seas will increase on Sunday as Hurricane
Irma is forecast to move northward along the Florida west coast
and the large wind field affects the western Atlantic. Otherwise,
a 1030 mb Azores high is centered near 42N33W with ridging
extending to the E Atlantic. Moderate to fresh trades are evident
in satellite derived wind data between the monsoon trough/ITCZ and
25N between 20W and 50W. Two tropical waves are also over the
tropical Atlantic. See above.
For additional information please visit
http://www.hurricanes.gov/marine
$$
Formosa
73, Scott kf5jrv
KF5JRV @ KF5JRV.#NWAR.AR.USA.NA
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