000
AXPZ20 KNHC 110906
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
906 UTC Tue Jul 11 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 20.6N 118.7W at 11/0900 
UTC or about 475 nm SSW of Punta Eugenia Mexico moving NW at 8 
kt. Estimated minimum central pressure is 995 mb. Maximum 
sustained wind speed is 55 kt with gusts to 65 kt. Scattered 
moderate convection is from 19N to 23N between 117W and 121W. 
Eugene is forecast to continue weakening, likely becoming a 
remnant low within 48 hours as it moves NW across cooler waters. 
See the latest NHC Forecast/Advisory under AWIPS/WMO headers 
MIATCMEP5/WTPZ25 KNHC for more details. 

...TROPICAL WAVES... 
None.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... 
The Monsoon Trough extends from 08N78W to 07N92W to Low Pres 
1009 mb near 12N106W...then resumes from 12N117W to 11N130W. The
ITCZ axis extends from 11N130W to 09N140W. Scattered to numerous
moderate and scattered strong from 03N to 09N E of 81W. Isolated
moderate convection is from 06N to 12N between 94W and 98W...and
from 07N to 10N between 127W and 134W.

...DISCUSSION...   

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...
Winds are diminishing and seas subsiding across the 
Revillagigedo Islands this morning as Eugene moves NW of the 
area. The core of weakening T.S. Eugene is expected to remain W 
of the offshore zones off the coast of Baja California through 
Thursday. Large swell generated by the tropical cyclone will 
keep seas 8-11 ft in this area Tuesday and early Wednesday. By 
late Wednesday into Thursday the area of seas will subside below 
8 ft across the region.

The pressure gradient between ridging W of Baja California Norte
and troughing across the Baja California peninsula is supporting 
gentle to moderate southerly flow across the Gulf of California,
which is expected to persist through much of this week. Pulses 
of fresh winds are possible across the Gulf of Tehuantepec each 
night through Friday, briefly building seas to 6-7 ft each 
morning.
    
OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND 
WITHIN 750 NM OF ECUADOR...
Moderate to fresh nocturnal winds are expected across the Gulf 
of Papagayo the next few days. Gentle to moderate southerly winds
are expected south of the monsoon trough axis. Long period 
cross-equatorial southerly swell and seas 6 to 7 ft are forecast 
west of Colombia and Ecuador.

REMAINDER OF THE AREA...
See the Special Features section for more information on Eugene.
Outside of this area, a 1009 mb low is centered near 12N106W with
scattered moderate and isolated strong convection occurring from
10N to 16N between 105W and 110W. The low is expected to move 
westward at 10 kt. Elsewhere, moderate to fresh trade winds will
prevail north of the monsoon trough, while gentle to moderate 
southerly winds will be south of the trough axis. Seas will be 
generally 5 to 6 ft, except 6-7 ft near the Equator. Little 
change is expected in the waters south of 20N through the end of 
the week.

$$
HUFFMAN