431  
ABPZ20 KNHC 152304  
TWOEP  
 
TROPICAL WEATHER OUTLOOK  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
500 PM PDT MON SEP 15 2025  
 
FOR THE EASTERN AND CENTRAL NORTH PACIFIC EAST OF 180 LONGITUDE:  
 
ACTIVE SYSTEMS:  
THE NATIONAL HURRICANE CENTER IS ISSUING ADVISORIES ON TROPICAL  
STORM MARIO, LOCATED A FEW HUNDRED MILES WEST-SOUTHWEST OF THE  
SOUTHERN TIP OF THE BAJA CALIFORNIA PENINSULA.  
 
OFF THE COAST OF SOUTHWESTERN MEXICO:  
AN ELONGATED TROUGH OF LOW PRESSURE LOCATED SEVERAL HUNDRED MILES  
OFF THE COAST OF SOUTHERN MEXICO IS PRODUCING DISORGANIZED SHOWERS  
AND THUNDERSTORMS. ENVIRONMENTAL CONDITIONS APPEAR CONDUCIVE FOR  
GRADUAL DEVELOPMENT OF THIS SYSTEM, AND A TROPICAL DEPRESSION IS  
LIKELY TO FORM DURING THE MIDDLE TO LATTER PART OF THIS WEEK AS IT  
MOVES WEST-NORTHWESTWARD AT 10 TO 15 MPH OVER THE CENTRAL EAST  
PACIFIC.  
*FORMATION CHANCE THROUGH 48 HOURS...MEDIUM...40 PERCENT.  
*FORMATION CHANCE THROUGH 7 DAYS...HIGH...70 PERCENT.  
 

 
FORECASTER HAGEN  
 
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