| |
KF5JRV > WX 14.08.17 08:59l 118 Lines 5227 Bytes #999 (0) @ NA
BID : 489_KF5JRV
Read: GUEST
Subj: NWS NHC Atlantic Tropical WX 8/9
Path: IW8PGT<LU4ECL<PI8CDR<VE3TOK<VA3TOK<VE3UIL<N9PMO<NS2B<KF5JRV
Sent: 170809/1137Z 489@KF5JRV.#NWAR.AR.USA.NA BPQK6.0.14
000
AXNT20 KNHC 090601
TWDAT
Tropical Weather Discussion
NWS National Hurricane Center Miami FL
201 AM EDT Wed Aug 9 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
0415 UTC.
...SPECIAL FEATURES...
Tropical Storm Franklin is centered near 20.4N 92.1W at 09/0600
UTC or about 195 nm NE of Coatzacoalcos Mexico and about 245 nm
ENE of Veracruz Mexico moving WNW at 9 kt. Estimated minimum
central pressure is 994 mb. Maximum sustained wind speed is 50 kt
with gusts to 60 kt. Scattered moderate and isolated strong
convection is from 17N-22N between 89W-95W. Widely scattered
moderate convection is elsewhere from 15N-24N between 85W-96W. See
the latest NHC Intermediate Public Advisory under AWIPS/WMO
headers MIATCPAT2/WTNT32 KNHC and the full Forecast/Advisory under
AWIPS/WMO headers MIATCMAT2/WTNT22 KNHC for more details.
...TROPICAL WAVES...
A tropical wave extends from 09N25W to 21N24W moving W at 5-10
kt. The wave coincides with relatively sharp 700 mb troughing
between 20W-31W and an area of widely scattered moderate
convection from 10N-19N between 13W-20W.
A tropical wave extends from 10N55W to 24N49W moving W at 10-15
kt. A 1012 mb low is centered along the wave axis near 16N53W
providing focus for scattered moderate convection from 15N-21N
between 47W-54W.
A tropical wave extends from 10N74W to 20N73W moving W at 10-15
kt. The wave remains embedded within middle to upper level
troughing between 72W-78W and relatively dry air aloft. Isolated
moderate convection is across northern Colombia from 09N-12N
between 72W-76W.
...ITCZ/MONSOON TROUGH...
The monsoon trough extends from the African coast near 17N16W to
08N28W to 12N42W. Aside from convection associated with the
tropical waves...isolated moderate convection is from 07N-11N
between 38W-43W.
...DISCUSSION...
GULF OF MEXICO...
The primary focus this evening is Tropical Storm Franklin as it
tracks across the SW Gulf waters. Scattered showers and strong
tstms continue to impact the southern Gulf waters generally S of
24N. Franklin continues moving within the southwestern periphery
of a surface ridge and associated axis extending from the SW
North Atlc across the northern Florida peninsula to 29N90W. Gentle
to moderate E-SE winds are occurring in the vicinity of the ridge
and are expected to persist through Thursday. Thereafter...as
Franklin moves inland across east-central Mexico...a surface ridge
will anchor across the north-central Gulf waters and provide fair
weather and tranquil conditions for the upcoming weekend.
CARIBBEAN SEA...
As Tropical Storm Franklin moves into the SW Gulf of Mexico...
lingering outer bands of convection remain across the NW Caribbean
with widely scattered showers and isolated tstms occurring
generally W of 80W and across interior portions of Central
America. Other scattered showers and tstms are occurring S of 10N
across Costa Rica and Panama as the monsoon trough is analyzed
from northern Colombia to SW Nicaragua. Farther east...a middle to
upper level low centered over the Bahamas extends troughing
southward over the central waters. A tropical wave also extends
along 74W...however dry air aloft is inhibiting any significant
deep convection at this time. The remainder of the eastern
Caribbean is under the influence of mostly clear skies and fair
conditions with moderate to fresh trades prevailing. Looking
ahead...a tropical wave currently along 53W will begin to impact
the Lesser Antilles by Wednesday night into Thursday.
...HISPANIOLA...
Mostly clear skies and fair conditions prevail this evening across
the island as a tropical wave continues to move west of the region
and an upper level low centered over the Bahamas is expected to
move west-southwest through Thursday. Overall dry conditions are
expected through Friday.
ATLANTIC OCEAN...
A middle to upper level low is centered over the Bahamas this
evening and reflects a surface trough analyzed from 21N73W to
26N72W providing focus for widely scattered showers and isolated
tstms from 22N-25N between 69W-77W. The upper level low is
expected to move W-SW and over the NW Caribbean Sea on Wednesday.
Otherwise...the remainder of the SW North Atlc is under the
influence of a surface ridge axis extending from a 1021 mb high
centered near 29N59W to the northern Florida peninsula. Mostly
fair conditions prevail...however the approach of a cold front
moving off the SE CONUS this evening is generating scattered
showers and tstms N of 28N W of 74W. Farther east...another
surface ridge prevails anchored by a 1022 mb high centered near
27N37W. Within the northern periphery of the ridging a stationary
front extends from 35N37W to 30N44W. Isolated showers and tstms
are occurring within 120 nm either side of the front.
For additional information please visit
http://www.hurricanes.gov/marine
$$
HUFFMAN
73, Scott kf5jrv
KF5JRV @ KF5JRV.#NWAR.AR.USA.NA
Read previous mail | Read next mail
| |
