000
AXPZ20 KNHC 110322
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
150 UTC Fri May 11 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
0530 UTC. 

...SPECIAL FEATURES...

Tropical Depression One-E is centered near 12.7N 127.4W at 
11/0300 UTC, or around 1200 nm WSW of Cabo San Lucas, moving W-NW
or 295 degrees at 8 kt. Estimated central pressure is 1006 mb.
Maximum sustained wind speed is 30 kt with gusts to 40 kt. Seas
are 8 to 12 ft in the area of strong winds. Scattered moderate 
convection is noted within 90 nm northeast of the center of the 
depression. T.D. One-E will maintain its current intensity 
through the 12 to 24 hours then start to weaken due to the 
effects of increasing upper shear. Please see NHC 
Forecast/Advisory under AWIPS/WMO Headers MIATCMEP1/WTPZ21 KNHC 
for more details. 
  
...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... 

The monsoon trough extends from 08N78W to T.D. ONE-E near 12.7N 
127.4W. The intertropical convergence zone continues from 08N130W  
to 08N140W. Scattered moderate convection is observed from 05N to
12N between 95W and 105W.  
...DISCUSSION...

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

A ridge extends from 1033 mb high pressure north of the area 
near 40N137W to the Revillagigedo Islands. Moderate to fresh
northerly winds and seas to 9 ft are noted in the waters off
Baja California Norte, and will persist through Fri night. Winds
and seas diminish afterward. Gentle to moderate NW winds are 
expected off Baja California Sur through the upcoming weekend.
     
Gulf of California: Fresh to strong southwesterly flow will 
develop N of 30N on Fri, and persist through Sun night. Winds 
are forecast to reach 30 kt on Fri and Fri night, and then again
Sat night. These winds will be associated with a low pressure 
located over the far northern Gulf. 

Gulf of Tehuantepec: Mainly light to gentle winds are expected
through the upcoming weekend, with seas of 4-6 ft in long period
southerly swell.
  
OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND 
WITHIN 750 NM OF ECUADOR... 

Gulf of Papagayo: Moderate to fresh NE-E winds are expected Fri
through Sun with seas of 4-6 ft.  
  
Gulf of Panama: Gentle to occasionally moderate SW winds are 
forecast during the next sevaral days, with seas of 4-6 ft in 
long period southerly swell.

REMAINDER OF THE AREA...

A ridge extends from 1033 mb high pressure north of the area 
near 40N137W to the Revillagigedo Islands. The pressure gradient
between the ridge and lower pressures over the southwest United
States is resulting in an area of fresh to strong NW winds N of 
27N between 117W and 124W with seas of 8-10 ft. These winds are 
forecast to diminish to 20 kt or less over the forecast waters 
tonight, but NW swell with seas of 8 to 10 ft will continue to 
propagate across the forecast waters, mainly N of 26N E of 134W 
through Sat. In addition, the pressure gradient between the ridge
and T.D. ONE-E is also producing moderate to fresh NE winds N of
the ITCZ and W of 130W, with seas near 8 ft based on latest 
altimeter data.
 
$$
Christensen