October 17th, 2024: Windy and Cooler with Chances of Mountain Snow and Valley Rain on Friday
Synopsis A mid level trough will dig southward across the Intermountain West today, and become anchored over Arizona as a closed low by tomorrow. This feature is expected to provide the state with cooler temperatures, windy conditions, and light precipitation chances. The majority of precipitation is forecast to occur over the higher terrain in Northern Arizona, but a brief period of showers and isolated thunderstorms are possible in Phoenix and Tucson tomorrow afternoon. Precipitation accumulations are forecast to be light with a trace to 0.10 inch in the lower deserts and between 0.25 and 0.50 inches over the higher terrain with locally higher amounts possible along the southwestern facing slopes of the Mogollon Rim and White Mountains due to orographic enhancement. Snow levels will remain mainly above 7000 feet with a dusting to 6 inches of accumulated snow possible with the highest amounts over the tallest peaks of the Rim and White Mountains. Current Conditio...