000
AXPZ20 KNHC 020342
TWDEP 

TROPICAL WEATHER DISCUSSION 
NWS NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC SAT JUN 02 2012

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 
0315 UTC.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH EXTENDS FROM 10N86W TO 09N97W TO 11N105W TO 
06N120W TO 06N127W. ITCZ EXTENDS FROM 06N127W TO BEYOND 05N140W. 
SCATTERED STRONG CONVECTION IS WITHIN 120 NM S OF THE MONSOON
TROUGH BETWEEN 108W-110W. SCATTERED MODERATE/ISOLATED STRONG 
CONVECTION EXISTS FROM 04N TO 08N BETWEEN 83W-89W...AND ALSO
WITHIN 30 NM OF 03N79W.

...DISCUSSION...

AT THE SURFACE...A 1025 MB HIGH AT 36N147W HAS A RIDGE EXTENDING
SE TO NEAR 20N120W. THE PRES DIFFERENCE BETWEEN THE RIDGE AND 
LOW PRES OVER THE WESTERN U.S. IS MAINTAIN NW TO N WINDS OF 20 
KT OVER THE NE PORTION OF THE AREA WITH SEAS OF 8 FT THERE. THE 
PRES DIFFERENCE ON THE SRN PERIPHERY OF THE RIDGE WITH LOWER 
PRES NEAR THE ITCZ IS ALLOWING FOR MODERATE NE TRADES IN THE FAR 
WESTERN SECTION OF THE AREA.

A 1010 MB LOW IS EMBEDDED IN THE MONSOON TROUGH NEAR 06N117W. 
SCATTERED MODERATE CONVECTION IS FROM 05N TO 09N BETWEEN 114W 
AND 118W. 

FURTHER E...BROKEN TO OVERCAST MULTILAYERED CLOUDS WITH CLUSTERS 
OF WIDELY SCATTERED MODERATE CONVECTION ARE S OF CENTRAL AMERICA 
N OF 3N AND E OF 95W. WINDS OUTSIDE OF CONVECTION ARE ONLY 5 TO 
10 KT FROM THE W.  

CROSS EQUATORIAL LONG-PERIOD MODERATE SWELL IS NOTED ALONG THE  
SOUTHERN BOUNDARY S OF 07N BETWEEN 100W AND 125W RESULTING IN 
COMBINED SEAS OF 8 FT.

IN THE UPPER LEVELS... 
AN UPPER LEVEL LOW IS CENTERED OVER N MEXICO NEAR 25N105W. UPPER 
LEVEL DIFFLUENCE SE OF THE CENTER IS HELPING TO PRODUCE 
SCATTERED MODERATE CONVECTION OVER INLAND MEXICO FROM 18N TO 27N 
BETWEEN 97W AND 103W.

ANOTHER UPPER LEVEL LOW IS CENTERED OVER THE TROPICS S OF MEXICO 
NEAR 13N100W. UPPER LEVEL DIFFLUENCE E OF THE CENTER IS HELPING 
TO PRODUCE THE CLUSTERS OF WIDELY SCATTERED MODERATE CONVECTION 
S OF CENTRAL AMERICA N OF 3N AND E OF 95W.

$$
FORMOSA