000
AXPZ20 KNHC 130917
TWDEP 

TROPICAL WEATHER DISCUSSION                                    
NWS NATIONAL HURRICANE CENTER MIAMI FL                         
1005 UTC MON APR 13 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...              

ITCZ FROM 5N93W TO 3N105W TO 8N120W TO 7N140W. SCATTERED 
MODERATE TO STRONG WITHIN 50 NM EITHER SIDE OF AXIS FROM 124W TO 
127W AND FROM 7N-11N BETWEEN 132W-140W.

...DISCUSSION... 

AN UPPER LEVEL TROUGH OVER THE FAR NW PORTION OF THE AREA IS N 
OF 27N W OF 134W. A BROAD UPPER LEVEL RIDGE IS N OF 24N E OF THE 
TROUGH TO BAJA CALIFORNIA...WITH MOSTLY ZONAL WLY FLOW. 
DOWNSTREAM TROUGH ARE EXTENDS FROM A CYCLONIC CIRCULATION OVER 
SOUTHERN NEW MEXICO INTO THE SOUTHERN GULF OF CALIFORNIA. A 95-
105 KT JETSTREAM IS S OF THE RIDGE AND TROUGH FROM 22N140W TO 
CENTRAL MEXICO. OTHERWISE A BROAD UPPER LEVEL RIDGE IS SE OF THE 
TROUGH WITH AN ANTICYCLONIC CIRCULATION CENTERED NEAR 6N114W 
WITH RIDGE NE TO GUATEMALA.

SURFACE RIDGE IS N OF 17N W OF 112W. NE WINDS ACROSS THE AREA 
ARE 15 KT OR LESS WITH SEAS 7 FT OR LESS. HOWEVER SEAS ARE 
FORECAST TO INCREASE TO 8 FT IN NW SWELL TUE. HIGH PRES RIDGE TO 
THE N OF THE AREA WILL BUILD WED AND NLY WINDS WILL INCREASE TO 
20-25 KT WITH SEAS BUILDING TO 9-11 FT N OF 29N BETWEEN 120W-
125W WED.

$$
DGS