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Eastern North Pacific Tropical Weather Discussion (Text)



000
AXPZ20 KNHC 250947
TWDEP 

Tropical Weather Discussion 
NWS National Hurricane Center Miami FL
1005 UTC Tue Apr 25 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 
0945 UTC.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... 

A surface trough extends from 06N85W to 06N98W where 
scatterometer winds indicate that the ITCZ forms and continues 
and continues w to beyond 04N140W. Scattered moderate isolated 
strong convection is noted in clusters within 90 nm of 02N78W 
and 05N81W, and within 75 nm either side of a line from 05N101W 
to 07N106W to 10N120W to 07N132W.     

...DISCUSSION...   

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

Strong to near gale force northwesterly winds are observed 
across the discussion waters n of 29.5N w of the Baja Peninsula, 
with 8 to 13 ft seas. Fresh to strong nw flow is expected 
elsewhere n of 25.5N today. The pressure gradient will relax 
some tonight through Wed before tightening again on Wed night.
Expect strong nw winds to spread s to along 28N to the e of 125W 
on Thu with seas building to 10 to 15 ft by early Fri. The 
gradient should relax Fri night with associated seas subsiding 
to less than 8 ft on Sun.

Gulf of California: Fresh to strong sw winds are expected 
through late morning with seas building to about 5 ft. Mostly 
gentle to moderate southerly flow elsewhere will clock to the nw 
on Wed.

Gulf of Tehuantepec: Gentle to moderate southerly flow expected 
this week.

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

Mostly a gentle onshore breeze expected during the day becoming 
offshore along the coasts at night. Combined seas of 3 to 5 ft 
in mixed SW and NW swell forecast during the next several days.

REMAINDER OF THE AREA...

A ridge will meander from near 32N140W to 11N102W. Strong nw 
winds, and seas of 8 to 12 ft expected n of 28N e of 123W 
through early Wed, with similar conditions n of 28N e of 126W on 
Thu through Fri night. Fresh ne trades expected s of the ridge 
and n of the ITCZ will seas building to 8 ft w of 130W late this 
week. 

$$
Nelson

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Page last modified: Tuesday, 25-Apr-2017 09:48:03 UTC