297  
ABPZ20 KNHC 160531  
TWOEP  
 
TROPICAL WEATHER OUTLOOK  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
1100 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 TROUGH OF LOW PRESSURE LOCATED SEVERAL HUNDRED MILES OFF THE  
COAST OF SOUTHERN MEXICO CONTINUES TO PRODUCE A BROAD AREA OF  
DISORGANIZED SHOWERS AND THUNDERSTORMS. ENVIRONMENTAL CONDITIONS  
APPEAR CONDUCIVE FOR ADDITIONAL 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...50 PERCENT.  
*FORMATION CHANCE THROUGH 7 DAYS...HIGH...80 PERCENT.  
 

 
FORECASTER PAPIN  
 
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