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Showing posts from November, 2025

November 14th, 2025: Wet Weather Late Saturday Through Monday Morning

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Synopsis An upper level trough/closed low off the coast of Southern California will lift northeastward across the Southwest US this weekend bringing  precipitation chances to Arizona. Rainfall amounts will be somewhat light with a trace to 0.25 inches in the lower deserts and 0.50 to 1 inch across the higher terrain of Northern Arizona. Snow levels will remain above 7000 feet with a dusting to a couple of inches of accumulation possible over the tallest mountain peaks. In addition, a few thunderstorms are possible mainly west of Phoenix due to weak instability.  Models show another upper level trough/closed low impacting the region mid to late next week for another chance of precipitation.  Current Conditions As of 7:30AM MST this morning, mid level water vapor imagery displays a plume of deep tropical moisture being transported into Southern California. GOES-19 mid level water vapor imagery as of 7:30AM MST courtesy of College of Dupage. This atmospheric river ...