Eastern Pacific Tropical Weather Outlook
885 ABPZ20 KNHC 212319 TWOEP Tropical Weather Outlook NWS National Hurricane Center Miami FL 500 PM PDT Wed Oct 21 2026 For the eastern and central North Pacific east of 180 longitude: Active Systems: The National Hurricane Center is issuing advisories on recently upgraded Tropical Storm Vance, located several hundred miles south of Acapulco, Mexico. Western Central Pacific: An area of low pressure is forecast to form near the International Date Line, a few hundred miles west-southwest of Johnston Atoll late this weekend or early next week. Environmental conditions appear conducive for some gradual development thereafter while the system moves generally eastward to east-northeastward. * Formation chance through 48 hours...low...near 0 percent. * Formation chance through 7 days...low...30 percent. && Public advisories on Tropical Storm Vance are issued under WMO header WTPZ32 KNHC and under AWIPS header MIATCPEP2. Forecast/advisories on Tropical Storm Vance are issued under WMO header WTPZ22 KNHC and under AWIPS header MIATCMEP2.