Chris Swafford
on July 15, 2021
3 views
AXPZ20 KNHC 151530
TWDEP
Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1605 UTC Thu Jul 15 2021
Tropical Weather Discussion for the eastern Pacific Ocean from
03.4S to 30N, east of 120W including the Gulf of California, and
from the Equator to 30N, between 120W and 140W. The following
information is based on satellite imagery, weather observations,
radar, and meteorological analysis.
Based on 1200 UTC surface analysis and satellite imagery through
1500 UTC.
...SPECIAL FEATURES...
Hurricane Felicia is centered near 15.2N 118.6W at 15/1500 UTC
moving W at 10 kt. Estimated minimum central pressure is 984 mb.
Maximum sustained wind speed is 80 kt with gusts to 100 kt.
Numerous moderate to scattered strong convection is noted within
120 nm of the center. Seas to 12 ft extend as far as 120 nm N
semicircle and 60 nm S semicircle. Felicia is expected to
gradually turn WSW into the weekend, then return to the westward
motion early next week. Hurricane Felicia is forecast to continue
strengthening into Saturday, when it will reach around 125W.
Please read the latest NHC Public Advisory at
https://www.nhc.noaa.gov/text/MIATCPEP1.shtml and Forecast/
Advisory at https://www.nhc.noaa.gov/text/MIATCMEP1.shtml for
more details.
A tropical wave extends along 96W from 06N northward to the Gulf
of Tehunatepec, moving W at 15 kt. A broad area of disorganized,
scattered moderate to isolated strong convection is noted from
10N to 13N between 91W and 97W. Environmental conditions are
expected to be conducive for gradual development over the next
several days, and a tropical depression is likely to form this
weekend well offshore of the southwestern coast of Mexico while
the system moves westward or west-northwestward. Based on the
latest Tropical Weather Outlook, this system has a medium chance
of tropical cyclone formation through 48 hours, and a high chance
of tropical cyclone formation through 5 days. Please refer to
the latest Tropical Weather Outlook at: www.hurricanes.gov for
details.
...TROPICAL WAVES...
Please see Special Features section above for details on a
tropical wave along 96W that has a high potential for tropical
development in the next 5 days.
A tropical wave extends along 104W from 06N northward to the
Coliman coast of Mexico, moving W at 10 kt. Scattered moderate to
isolated strong convection is noted from 10N to 17N between 100W
and 107W.
...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
The monsoon trough extends from eastern Panama near 09N78W to
09N90W to 13N111W, then resumes west of Hurricane Felicia near
13N121W to 10N140W. In addition to the convection related to the
tropical waves and Hurricane Felicia, scattered moderate
convection is noted from 07N to 10N between 90W and 102W, from
08N to 10N between 112W and 115W, and from from 11N to 13N
between 132W and 140W.
OFFSHORE WATERS WITHIN 250 NM OF MEXICO...
Fresh to strong N to NE gap winds continue to flow across the
Gulf of Tehuantepec. As the tropical wave, described in the
Special Features section above, moves W of the area later today,
winds will begin to subside. Seas in this region are 8 to 10 ft.
Light to gentle breezes are noted elsewhere off southern Mexico,
with 4 to 6 ft seas primarily in SW swell.
Farther north, a weak ridge is west of the offshore forecast
waters of Baja California is maintaining light to gentle breezes,
except for possible moderate NW winds funneling along the coast
south of Punta Eugenia. Seas are 3 to 5 ft off Baja California in
a mix of S and NW swell.
For the forecast, low pressure is expected to develop just
outside the offshore waters off southern Mexico Fri, then move W
or W-NW toward the Revillagigedo Islands through Sun. This may
bring strong SE winds and building seas to the offshore waters
from Oaxaca to Jalisco through late Sat, and into the
Revillagigedo Islands Sat night through Sun night. Farther north,
gentle to moderate winds will persist with slight to moderate
seas.
OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, and
WITHIN 750 NM OF ECUADOR...
Fresh offshore wind
Dimension: 152 x 320
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