340 
AXPZ20 KNHC 190327
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
120 UTC Sun Aug 19 2018

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 0000 UTC surface analysis and satellite imagery through
0215 UTC. 

...SPECIAL FEATURE...

Hurricane Lane centered near 12.8N 141.0W at 0300 UTC, moving 
W at 14 kt. Estimated minimum central pressure is 952 mb. 
Maximum sustained winds are 115 kt with gusts to 140 kt. Numerous
moderate and scattered strong convection is noted over the 
forecast waters within 60 nm of the center. Scattered moderate 
and isolated strong convection is seen elsewhere from 10N to 16N 
W of 137W. Lane has crossed into the central Pacific basin this 
evening. See latest CPHC forecast/advisory under AWIPS/WMO 
headers HFOTCPCP2/WTPA32 PHFO for more details.

...TROPICAL WAVES...

A tropical wave extends from 08N81W to 20N81W, moving W around 15
kt. Scattered moderate and isolated strong convection is seen 
from 03N to 10N between 80W and 86W.

A tropical wave extends from 06N106W to 16N106W, moving W around
5 kt. Scattered moderate and isolated strong convection is noted
from 06N to 08N between 103W and 110W and from 14N to 19N 
between 102W and 108W.

A tropical wave extends from 07N121W to 17N120W, moving W around
10 kt. Scattered moderate and isolated strong convection is
present from 11N to 17N between 120W and 123W.
   
...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... 

The monsoon trough extends from 09N75W to 10N107W to low pres
1009 mb near 13N117W to 09N122W. The ITCZ continues from 09N122W
to 09N130W to 11N136W. Scattered moderate and isolated strong 
convection is noted from 03N to 08N east of 83W. Scattered 
moderate isolated strong convection is noted from 11N to 14N 
between 95W and 103W and from 13N to 17N between 114W and 120W. 

...DISCUSSION...

OFFSHORE WATERS WITHIN 250 NM OF MEXICO... 

Surface ridging enters the forecast waters near 32N133W and 
extends SE to near the Revillagigedo Islands. This feature will 
support gentle to moderate NW winds through Tue. Low pres will
erode the N side of the ridge during the middle of next week and
allow winds to decrease to light to gentle.

Surface troughing over the Baja Peninsula will maintain a light
wind regime over the Gulf of California through the middle of 
next week.

Strong N to NE gap winds will start over the Gulf of Tehuantepec
Tue night, then wind down Thu night.

OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND 
WITHIN 750 NM OF ECUADOR...

The monsoon trough will hover near 09N during the next few days.
Winds on both sides of the trough axis will generally be light 
to moderate. The only exception is over the Gulf of Papagayo, 
where winds will pulse to between moderate and fresh each night.

REMAINDER OF THE AREA...   

Please see the Special Features section for information on 
Hurricane Lane.

Otherwise, the pressure gradient between ridging across the 
northern waters and the ITCZ will support gentle to moderate 
trades and 4-7 ft seas in mixed swell N of the ITCZ and W of 120W
through the middle of next week.
  
$$
CAM