Updated

Tropical Storm Vance was weakening about 345 miles west-southwest of Acapulco, Mexico, on the evening of October 25, with maximum sustained winds of 55 knots. The National Hurricane Center said the storm was centered near 15.0N 104.7W, about 275 miles south of Manzanillo, moving northwest at 6 knots with a minimum central pressure of 995 mb. Its structure is degrading because of strong vertical wind shear and relatively dry mid-level air, with convection limited mostly to the northeast of the center. No damage or casualties are reported in the advisories.