000
AXPZ20 KNHC 170936
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC SUN APR 17 2016

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
0900 UTC.               

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...            
THE ITCZ AXIS EXTENDS FROM 05N100W TO 09N110W TO 03N130W TO
03N140W. SCATTERED MODERATE AND ISOLATED STRONG CONVECTION IS
FROM 04N TO 09N BETWEEN 107W AND 121W. SCATTERED MODERATE
CONVECTION IS WITHIN 75 NM S OF THE AXIS BETWEEN 125W AND 133W.

...DISCUSSION...                                               
BROAD RIDGING ASSOCIATED WITH A 1023 MB HIGH LOCATED WELL N OF
THE DISCUSSION AREA NEAR 39N129W PREVAILS ACROSS THE NORTHERN
WATERS GENERALLY N OF 15N W OF 115W. A BROAD AREA OF MIDDLE TO
UPPER LEVEL LOW PRES OVER THE INTERMOUNTAIN WEST CONTINUES TO
MOVE EASTWARD RESULTING IN A RELAXED PRESSURE GRADIENT ACROSS
THE NE WATERS. HOWEVER...AN AREA OF COMBINED SEAS OF 8 TO 10 FT
IN S AND NW SWELL REMAINS GENERALLY N OF 10N BETWEEN 110W AND
124W. THIS AREA OF SEAS WILL SLOWLY SUBSIDE THROUGH SUN EVENING.

A COLD FRONT IS PRESENTLY NW OF THE DISCUSSION AREA AND IS
FORECAST TO REACH THE NW CORNER OF THE DISCUSSION AREA BY SUN
AFTERNOON/EARLY EVENING. NW SWELL PRODUCING SEAS TO 9 FT ARE N
OF 24N W OF 138W. BY SUN AFTERNOON...W OF THE FRONT NW TO N
WINDS OF 20 TO 30 KT WILL BRIEFLY SKIRT THE NW WATERS AND MOVE N
OF THE AREA BY MON MORNING. SEAS RANGING FROM 8 TO 12 FT IN NW
SWELL WILL ACCOMPANY THE FRONTAL PASSAGE. WITH UPPER LEVEL
SUPPORT FOR THE FRONT LIFTING NE LATE SUN INTO MON...THE FRONT
IS EXPECTED TO GRADUALLY WEAKEN FROM 30N129W TO 26N131W TO
20N140W BY EARLY TUE. SEAS ARE EXPECTED TO REMAIN IN A RANGE
OF 8 TO 12 FT IN NW SWELL.

GULF OF CALIFORNIA...NW TO N WINDS OF 20-25 KT WITH SEAS LESS
THAN 8 FT ARE ANTICIPATED N OF 30N BY SUN AFTERNOON. THESE WINDS
ARE FORECAST TO DIMINISH TO 15-20 KT SUN NIGHT AS THE
AFOREMENTIONED HIGH PRES RIDGE ACROSS THE NORTHERN WATERS
WEAKENS.

$$
HUFFMAN