Tropical Weather Discussion
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AXPZ20 KNHC 260237

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 UTC Sun Mar 26 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 0000 UTC surface analysis and satellite imagery through
0200 UTC.


The ITCZ axis extends from 02N110W to 02N125W to 00N140W.
Scattered moderate convection is noted within 45 nm south of the
ITCZ between 125W and 130W, and within 75 nm north of the ITCZ
between 130W and 132W.



A cold front will shift east across Baja California norte and
the northern Gulf of California tonight through Sunday. High
pressure in the wake of the front will maintain fresh to locally
strong NW winds off the coast of Baja California tonight and
Sunday. Then, the high pressure will further build early next
week bringing an increase in coverage of strong northwest winds
off the coast of Baja California Norte early next week. Seas in
the 6-8 ft range will prevail over this area through Monday. A
fresh set of northwesterly swell will propagate into the waters
off Baja California Norte early next week. This swell will peak
near 14 ft early Tuesday morning.

Gentle to moderate northerly winds and seas of 2-3 ft are
expected across northern Gulf of California with the frontal
passage. Winds are forecast to increase to 15-20 kt with seas
building to 6 ft Tuesday and Wednesday as the above mentioned
area of high pressure builds and tightens the pressure gradient
over the area. Elsewhere, winds will generally be light to gentle
with seas in the 4-6 ft range through the middle of next week.


Fresh to locally strong NE winds are expected over the Gulf of
Papagayo during the overnight and early morning hours through
Monday morning. Elsewhere, light to gentle winds and combined
seas of 3-5 ft are expected the next several days except in the
Gulf of Panama, where winds will pulse to a fresh breeze tonight.


A cold front extending across the NE waters will reach Baja
California norte tonight. Moderate to fresh NW winds are noted,
based on scatterometer data, ahead of the front affecting the
offshore forecast zones PMZ009 and PMZ011. High pressure behind
the cold front is located near 30N133W, and extends a ridge SE to
near the Revillagigedo Islands. On the southern periphery of the
ridge, fresh to strong trades prevail, covering mainly the
waters from 07N to 19N W of 130W. Seas have built to 10-11 ft
within the area of the trade winds based on the most recent
altimeter data. This area of trades will persist through Monday,
but the aerial extent of the trades will increase by Monday night
as a high pressure located just north the area strengthens. At
that time, the GFS computer model shows a high pressure of 1033
mb located near 35N132W.

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