000
AXPZ20 KNHC 282120
TWDEP 

TROPICAL WEATHER DISCUSSION                                     
NWS NATIONAL HURRICANE CENTER MIAMI FL                         
2205 UTC SUN JUN 28 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 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2100 UTC. 
 
...TROPICAL WAVES...

TROPICAL WAVE ALONG 106W FROM 06N-13N IS MOVING W AT 15-20 KT. 
NO SIGNIFICANT CONVECTION.

TROPICAL WAVE ALONG 115W FROM 06N-13N IS MOVING W AT 15-20 KT. 
NO SIGNIFICANT CONVECTION.

TROPICAL WAVE ALONG 129W FROM 06N-14N IS MOVING W AT 15-20 KT. 
NO SIGNIFICANT CONVECTION.

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

MONSOON TROUGH EXTENDS FROM 10N85W TO 07N106W. ITCZ EXTENDS FROM 
06N107W TO 08N128W TO 05N140W. SCATTERED MODERATE ISOLATED 
STRONG CONVECTION FROM 06N TO 09N BETWEEN 82 AND 90W. SCATTERED 
MODERATE CONVECTION WITHIN 150 NM S OF AXIS BETWEEN 96W AND 98W. 

...DISCUSSION...

BENIGN MARINE WEATHER CONDITIONS EXPECTED THROUGH EARLY TUE.

A 1010 MB LOW ANALYZED NEAR 12N136W HAS NO SIGNIFICANT DEEP 
CONVECTION AND A WEAK EXPOSED LOW LEVEL CIRCULATION EVIDENT ON 
VISUAL SAT IMAGERY. THIS AREA OF LOW PRESSURE IS NOT EXPECTED 
TO DEVELOP AS IT DRIFTS W INTO THE CENTRAL PACIFIC. 

DEEPEST CONVECTION IS PRIMARILY FOCUSED ALONG THE CONVERGENCE 
ZONE AXIS E OF 100W WHERE DIVERGENT FLOW ALOFT IS ENHANCING 
VERTICAL MOTION. ANTICYCLONIC WINDS ARE EXPECTED TO WEAKEN AND 
SLOWLY MIGRATE SE OVER THE NEXT TWO DAYS. 

WEAK RIDGE EXTENDS SE FROM STATIONARY HIGH PRESSURE NEAR 30N140W 
TO 21N119W. SCATTEROMETER DATA SHOWS MOSTLY GENTLE TO MODERATE 
TRADE WINDS PREVAILING ACROSS THE REGION EXCEPT FOR A SMALL AREA 
OF FRESH NE WINDS NEAR THE GULF OF PAPAGAYO. GAP WINDS THERE ARE 
EXPECTED TO DIMINISH TONIGHT AND MON...THEN RE-INTENSIFY TUE.

$$
MUNDELL