000
AXPZ20 KNHC 230919
TWDEP 

TROPICAL WEATHER DISCUSSION                         
NWS NATIONAL HURRICANE CENTER MIAMI FL                           
1005 UTC SUN FEB 23 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 EXTENDS FROM 06N78W TO 09N84W TO 04N93W TO 
04N97W. ITCZ EXTENDS FROM 04N97W TO 08N110W TO 07N117W TO 
09N133W TO BEYOND 07N140W. SCATTERED MODERATE CONVECTION IS FROM 
06N TO 10N BETWEEN 120W AND 130W.

...DISCUSSION...

IN THE UPPER LEVELS...A SMALL UPPER LEVEL LOW IS NEAR THE NW 
AREA AT 30N130W MOVING E. DIFFLUENT UPPER LEVEL WINDS E OF THE 
LOW ARE TRANSPORTING ABUNDANT MID TO UPPER LEVEL MOISTURE ACROSS 
THE N WATERS TO BAJA CALIFORNIA AND N MEXICO. FURTHER SOUTH... A 
LARGE UPPER LEVEL RIDGE IS FROM 01N TO 25N BETWEEN 110W AND 140W 
WITH AXIS ALONG 120W. AN UPPER LEVEL TROUGH IS FROM 1N TO 22N 
BETWEEN 95W AND 110W. ANOTHER UPPER LEVEL RIDGE WITH STRONG 
SUBSIDENCE IS E OF 95W TO INCLUDE CENTRAL AMERICA. 
 
ON THE SURFACE...A COLD FRONT IS W OF THE AREA AND IS PRESENTLY 
AT 30N149W MOVING E. EXPECT THIS FRONT TO ENTER THE NW CORNER ON 
MON NIGHT. ALSO EXPECT S TO SW WINDS 20 TO 25 KT AND SEAS TO 9 
FT TO ENTER THE NW CORNER ON MON EVENING IN ADVANCE OF THE 
FRONT. A 1021 MB HIGH IS CENTERED JUST N OF THE AREA NEAR 
34N134W. SURFACE RIDGING IS N OF 15N W OF 120W. MAINLY GENTLE TO 
MODERATE WINDS AND SEAS OF 6-7 FT ARE OBSERVED BY SCATTEROMETER 
DATA WITH THIS SYSTEM. IN THE TROPICS...A SURFACE TROUGH EXTENDS 
FROM 11N111W TO 05N111W. THIS TROUGH IS GENERATING SHOWERS 
WITHIN 90 NM OF THE AXIS.

GAP WINDS...                                                 
GULF OF PAPAGAYO...FRESH TO STRONG EASTERLY WINDS WILL CONTINUE 
TO PULSE IN THE GULF OF PAPAGAYO DURING THE NEXT COUPLE OF DAYS. 
THE STRONGEST WINDS WILL OCCUR DURING THE LATE NIGHT AND EARLY 
MORNING HOURS WITH THE ASSISTANCE OF THE NOCTURNAL DRAINAGE 
FLOW. WINDS WILL BRIEFLY DIMINISH TO 20 KT OR LESS BETWEEN 18-00 
UTC EACH DAY. 

$$
FORMOSA