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.
