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Eastern Pacific Tropical Weather Discussion (Text)



000
AXPZ20 KNHC 060915
TWDEP 

TROPICAL WEATHER DISCUSSION                                     
NWS NATIONAL HURRICANE CENTER MIAMI FL                         
1005 UTC WED MAY 06 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 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY  
THROUGH 0900 UTC. 

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...        
MONSOON TROUGH FROM 7N89W TO 5N95W TO 7N105W TO 6N114W. ITCZ 
FROM 6N114W TO TROUGH AT 8N125W TO 3N140W. SCATTERED MODERATE TO 
STRONG CONVECTION FROM 9N-13N BETWEEN 103W-122W.         

...DISCUSSION... 

AN UPPER LEVEL TROUGH EXTENDS FROM 32N127W TO 30N140W. A BROAD 
UPPER LEVEL RIDGE IS SE OF THE TROUGH AND DOMINATES MUCH OF  
DISCUSSION AREA WITH AN ANTICYCLONIC CIRCULATION CENTERED NEAR 
11N111W. A 90-95 KT JETSTREAM ACROSS THE NORTHERN PERIPHERY OF 
THE RIDGE EXTENDS FROM 22N129W ACROSS CENTRAL BAJA CALIFORNIA 
INTO NORTHERN MEXICO. UPPER LEVEL DIFFLUENCE IS ENHANCING 
CONVECTION N OF  THE ITCZ FROM 103W TO 122W. STRONG SUBSIDENCE 
WITH DRY AIR AT THE MIDDLE AND UPPER LEVELS IS N OF 20N W OF 
120W.

THE HIGH PRES NW OF THE DISCUSSION AREA WILL BECOME STRONGER WED 
NIGHT AND THE PRESSURE GRADIENT WILL TIGHTEN...LEADING TO NE 
WINDS INCREASING TO 20-25 KT FROM 11N-16N BETWEEN 126W-136W WITH 
SEAS BUILDING 8-10 FT. THE NE WINDS 20-25 KT WILL FROM 11N-15N W 
OF 130W THU NIGHT. AN AREA OF NW SWELL TO 8 FT WILL MOVE INTO 
THE NORTHERN PORTION OF THE AREA N OF 29N BETWEEN 120W-127W 
LATER THIS AFTERNOON.

$$ 
DGS

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Page last modified: Wednesday, 06-May-2015 09:15:48 UTC