Tropical Weather Discussion
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000
AXPZ20 KNHC 140907
TWDEP

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC MON JUL 14 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.

...TROPICAL WAVES...

TROPICAL WAVE EXTENDS FROM THE YUCATAN PENINSULA S TO THE E
PACIFIC NEAR 10N90W MOVING W AT AROUND 15 KT. MODERATE TO STRONG
CONVECTION IS FROM 12N-13N BETWEEN 92W-92W.

TROPICAL WAVE EXTENDS FROM 13N99W TO 07N101W MOVING W AT AROUND
15 KT. MODERATE TO STRONG CONVECTION ASSOCIATED WITH THIS WAVE
IS FROM 9N-11N BETWEEN 99W-103W.

TROPICAL WAVE AXIS EXTENDS FROM 17N130W TO 07N132W MOVING W AT
15 KT. MODERATE TO STRONG CONVECTION ASSOCIATED TO THE WAVE IS
FROM 11N-14N BETWEEN 128W-134W.

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

MONSOON TROUGH EXTENDS FROM 10N85W TO TO 1011 MB LOW PRES 7N118W
TO 5N121W. ITCZ AXIS EXTENDS FROM 5N121W TO 9N140W. SCATTERED
MODERATE TO STRONG CONVECTION WITHIN 180 NM N OF AXIS FROM 93W
TO 97W AND FROM 9N-14N BETWEEN 128W-133W.

...DISCUSSION...

A BROAD UPPER LEVEL TROUGH IN THE NW PORTION OF THE DISCUSSION
AREA WITH AXIS FROM A CYCLONIC CIRCULATION JUST N OF THE AREA
NEAR 34N134W TO 19N140W. STRONG SUBSIDENCE WITH DRY AND STABLE
AIR AT THE MIDDLE LEVELS IS N OF 17N W OF 120W. AN UPPER LEVEL
ANTICYCLONIC CIRCULATION IS CENTERED NEAR 15N129W WITH A RIDGE
EXTENDING N TO 26N125W. ANOTHER RIDGE EXTENDS FROM THE
ANTICYCLONE SW TO 12N140W. UPPER LEVEL DIFFLUENT FLOW ASSOCIATED
WITH THE ANTICYCLONE IS ENHANCING CONVECTION ASSOCIATED WITH A
TROPICAL WAVE FROM 9N-14N BETWEEN 128W-134W. A LARGE CYCLONIC
CIRCULATION IS CENTERED NEAR 19N115W...WITH MODERATE TO STRONG
SUBSIDENCE FROM 13N-25N BETWEEN 110W AND 120W.

GULF TEHUANTEPEC...AN ENHANCED PRESSURE GRADIENT FROM THE SW
GULF OF MEXICO TO THE GULF OF TEHUANTEPEC HAVE INCREASED NLY
WINDS TO 20-30 KT WITH SEAS 8-10 FT. WINDS WILL DECREASE TO 20
KT OR LESS AND SEAS LESS THAN 8 FT THIS EVENING.

WINDS WILL INCREASE TO 20-25 KT THROUGH THE GULF OF PAPAGAYO
EARLY TUE...THEN DECREASE TO 20 KT OR LESS TUE NIGHT.

$$
DGS



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