Eastern Pacific Tropical Weather Outlook
041 ABPZ20 KNHC 170510 TWOEP Tropical Weather Outlook NWS National Hurricane Center Miami FL 1100 PM PDT Wed Sep 16 2026 For the eastern and central North Pacific east of 180 longitude: Southwest of Southwestern Mexico: A tropical wave is producing disorganized showers and thunderstorms several hundred miles south of southwestern Mexico. Environmental conditions appear conducive for gradual development, and a tropical depression is likely to form late this weekend or early next week while it moves north-northwestward or northward at 5 to 10 mph. * Formation chance through 48 hours...low...near 0 percent. * Formation chance through 7 days...high...70 percent. Western East Pacific: A tropical wave is producing disorganized showers and thunderstorms well to the south-southwest of the southern tip of the Baja California Peninsula. Environmental conditions appear conducive for gradual development, and a tropical depression could form this weekend as the system moves westward at around 10 mph. * Formation chance through 48 hours...low...10 percent. * Formation chance through 7 days...medium...60 percent.