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000
AXPZ20 KNHC 180240
TWDEP

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC SAT APR 18 2015

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.


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

ITCZ EXTENDS FROM 02N107W TO 02N128W TO 06N140W. NO SIGNIFICANT CONVECTION.

A TROUGH EXTENDS FROM 08N91W TO 04N102W. SCATTERED MODERATE CONVECTION IS WITHIN 60 NM OF TROUGH BETWEEN 95W AND 99W.


...DISCUSSION...

A MID TO UPPER LEVEL TROUGH IS MOVING EASTWARD ACROSS WESTERN MEXICO. A LARGE MID LEVEL ANTICYCLONE IS CENTERED NEAR 09N121W. BROAD UPPER LEVEL DIFFLUENCE IS ENHANCING ISOLATED CONVECTIVE ACTIVITY N OF THE ITCZ W OF 130W.

A WEAK PRESSURE PATTERN CONTINUES OVER THE TROPICAL WATERS E OF 120W. SCATTEROMETER DATA SHOWS GENTLE TO MODERATE WINDS ACROSS MOST OF THE REGION W OF 110W. AN ALTIMETER PASS AT 1300 UTC SHOWED 10-11 FT SEAS IN NW PART OF THE DISCUSSION AREA. FRESH TRADE WINDS WILL PERSIST FROM 10N TO 15N W OF 125W INTO EARLY SUNDAY...AND ALLOW AN AREA OF 8-9 FT SEAS TO REMAIN IN THE SAME AREA THROUGH THE WEEKEND.

$$ MUNDELL

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