000
AXPZ20 KNHC 230334
TWDEP 

TROPICAL WEATHER DISCUSSION                                     
NWS NATIONAL HURRICANE CENTER MIAMI FL                         
0405 UTC WED DEC 23 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
0245 UTC.               
 
...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...           

SURFACE TROUGH EXTENDS FROM 06N77W TO 04N90W. ITCZ AXIS EXTENDS
FROM 05N92W TO 08N110W TO 05N125W TO 05N140W. SCATTERED MODERATE
CONVECTION IS FROM 04N TO 07N BETWEEN 84W AND 88W...FROM 04N TO
09N BETWEEN 112W AND 125W...AND FROM 03N TO 06N W OF 137W.

...DISCUSSION...

SURFACE...A 1033 MB HIGH IS CENTERED NW OF AREA NEAR 33N149W. A
RIDGE AXIS EXTENDS SE FROM THE HIGH TO CABO CORRIENTES MEXICO
NEAR 20N106W. A GALE IS N OF THE AREA OFF THE COAST OF S
CALIFORNIA. W OF BAJA CALIFORNIA NW WINDS 20 TO 30 KT ARE N OF
28N E OF 120W WITH SEAS 8 TO 10 FT. FURTHER SW...A TIGHT SURFACE
PRESSURE GRADIENT BETWEEN THE SURFACE HIGH AND THE ITCZ IS
PRODUCING NE WINDS 20 TO 25 KT WITH SEAS 10 TO 13 FT W OF LINE
FROM 22N140W TO 14N120W TO 06N140W. EXPECT THESE WINDS TO
PERSIST FOR THE NEXT 48 HOURS. 

GAP WINDS...FRESH NE-E WINDS WILL CONTINUE TO FUNNEL ACROSS
CENTRAL AMERICA INTO THE GULF OF PAPAGAYO AND EASTERN PACIFIC
FOR THE NEXT 48 HOURS. 20-25 KT WINDS WILL BE FROM 10N TO 12N
BETWEEN 86W AND 90W WITH SEAS TO 7 FT.   

UPPER LEVELS...A UPPER LEVEL RIDGE IS OVER THE NW CORNER N OF
22N W OF 125W. A LARGE UPPER LEVEL TROUGH IS OVER BAJA
CALIFORNIA AND N MEXICO N OF 18N BETWEEN 100W AND 125W. EXPECT
THIS PATTERN TO BECOME ALMOST ZONAL IN 48 HOURS. ALSO OF NOTE
FURTHER E...A SHARP UPPER LEVEL TROUGH IS S OF COSTA RICA AND
PANAMA FROM 10N TO 10S E OF 90W ENHANCING CONVECTION. EXPECT
THIS UPPER TROUGH TO BE REPLACED BY A RIDGE IN 48 HOURS. 
  
$$
FORMOSA