Tropical Weather Discussion
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000
AXPZ20 KNHC 290942
TWDEP

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC MON DEC 29 2014

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...

MONSOON TROUGH 8N83W TO 7N94W. ITCZ FROM 7N94W TO 6N115W TO
8N140W. NO SIGNIFICANT CONVECTION.

...DISCUSSION...

AN UPPER LEVEL TROUGH IS APPROACHING THE FAR WESTERN PORTION OF
THE DISCUSSION AREA...OTHERWISE AN UPPER LEVEL RIDGE IS ACROSS
THE W PORTION OF THE DISCUSSION AREA N OF 5N BETWEEN 120W AND
135W. HIGH LEVEL CLOUDS ARE RIDING OVER THE TOP OF THE
RIDGE...WITH DEEP LEVEL MOISTURE AND WIDESPREAD RAIN E OF THE
TROUGH BETWEEN 136W AND 140W. AN UPPER LEVEL TROUGH E OF THE
RIDGE EXTENDS FROM NW MEXICO THROUGH SOUTHERN BAJA CALIFORNIA TO
A CYCLONIC CIRCULATION NEAR 9N107W TO THE EQUATOR AT 103W.

THE GULF OF PAPAGAYO...SURFACE HIGH PRESSURE IN THE NORTHWESTERN
CARIBBEAN SEA WILL SUPPORT 20-25 KT WINDS IN THE GULF OF
PAPAGAYO AND 8 FT SEAS TODAY THEN DECREASE TUE.

A COLD FRONT NW OF THE DISCUSSION AREA HAS INCREASED SLY WINDS
TO 20-25 KT N OF 20N W OF 135W.

THE PRES GRADIENT HAS INCREASED ACROSS SOUTHERN MEXICO RESULTING
NLY WINDS INCREASE TO 20-30 KT THROUGH THE GULF OF TEHUANTEPEC.

$$
DGS


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