000
AXPZ20 KNHC 080921
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
739 UTC Sat Jul 8 2017

Tropical Weather Discussion for the eastern Pacific Ocean from
the Equator to 32N, east of 140W. The following information is
based on satellite imagery, weather observations, radar, and
meteorological analysis.

Based on 0600 UTC surface analysis and satellite imagery through
0830 UTC.

...SPECIAL FEATURES...
Tropical Storm Eugene is centered near 12.9N 111.1W at 08/0900 
UTC or about 610 nm SSW of the southern tip of Baja California 
moving NW at 8 kt. Maximum sustained wind speed is 40 kt with 
gusts to 50 kt. Estimated minimum central pressure is 1005 mb. 
Numerous moderate and scattered strong convection is from 10N to 
15N between 109W and 114W. The environment will remain favorable 
for Eugene to strengthen...and the system is forecast to become a
hurricane within 36 hours. See the latest NHC Forecast/Advisory 
under AWIPS/WMO headers MIATCMEP5/WTPZ25 KNHC for more details. 

...TROPICAL WAVES...
A tropical wave extends from the Gulf of Tehuantepec across the
Isthmus of Tehuantepec and into the SW Gulf of Mexico waters 
moving W at 15 kt. Most active convection is noted on satellite
imagery across interior portions of southern Mexico and the SW
Gulf of Mexico waters. 

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... 
The Monsoon Trough extends from 08N78W to 09N94W to 13N102W then
resumes from 09N117W to 12N131W to 09N140W. Scattered moderate
convection is from 02N to 07N E of 80W...from 06N to 13N between
93W and 97W...from 08N to 11N between 113W and 120W...and from
09N to 13N between 129W and 132W. 

...DISCUSSION...   

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...
A ridge extends across the waters W of Baja California from 
28N130W to 21N116W. Gentle to moderate N-NW flow prevails W of 
the Baja California peninsula, moderate to occasional fresh N 
winds in the Gulf of Tehuantepec, and light to gentle winds 
across the Gulf of California. Seas are ranging 4-6 ft in the 
open waters W of Mexico, with 1-3 ft seas in the Gulf of 
California. Nocturnal winds will pulse to a max of 20 kt each 
night in the Gulf of Tehuantepec, then diminish during the day. 
Tropical Storm Eugene forecast to impact the PMZ015 offshore 
waters zone early on Sunday into Monday.
    
OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND 
WITHIN 750 NM OF ECUADOR... 
Moderate to locally fresh nocturnal winds are expected in the 
Gulf of Papagayo for the weekend. Gentle to moderate southerly 
winds are expected S of the Monsoon Trough. Long period cross- 
equatorial S to SW swell and seas to 6-8 ft W of Colombia and 
Ecuador will continue through early next week.

REMAINDER OF THE AREA...
See the Special Features section for more information on T.S.
Eugene. Outside of this area...moderate to occasional fresh 
trade winds will prevail N of the Monsoon Trough...while gentle
to moderate southerly winds will occur S of the trough axis. 
Seas will generally range 5-7 ft. These conditions are expected 
to continue through Tue.

$$
HUFFMAN