""Deep tropical moisture surging into the Southwest U.S. will lead to widespread showers and thunderstorms capable of producing flash flooding the next several days," per a National Weather Service Thursday forecast update."
""Scattered instances of flash flooding will remain possible especially near urban areas, burn scars, and slot canyons," the NWS WPC said."
"The NHC warned flash flooding was "likely in portions of central Arizona, with scattered areas of flash flooding expected across the remainder of Arizona, southern Utah, southwest Colorado, and far northwest New Mexico.""
Tropical cyclone moisture from Priscilla will be steered into the Desert Southwest by a broad southwesterly flow ahead of a deep upper-level low. The Weather Prediction Center issued a moderate (Level 3 of 4) flood risk for Arizona for Friday, including Phoenix and Flagstaff, warning of heightened vulnerability in urban areas, burn scars, and slot canyons. The National Hurricane Center forecasts 2 to 4 inches of rain with local maxima up to 6 inches across parts of central and northern Arizona, southern Utah and southwest Colorado through Saturday. Flash flooding is likely in parts of central Arizona with scattered flash flooding expected elsewhere as the heavy-rain focus shifts northeast into the Four Corners.
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