Moisture Returning to Northern Arizona

7/22/14 – Subtropical moisture will begin to return to Northern Arizona as the trough along the west coast weakens and moves east by Thursday. The upper level high pressure ridge will sit over western New Mexico and the Four Corners region and due to the clockwise circulation around the upperlevel high this circulation will tend to draw deeper moisture over northern Mexico Northward into Northern Arizona. Scattered showers and thunderstorms are forecast over the White Mountains and portions of the eastern Mogollon Rim with isolated showers and thunderstorm elsewhere. Local thunderstorm outflow wind bgusts to around 50 MPH is possible.

Chance of showers and thunderstorms as far north as Flagstaff Wednesday and Thursday then to the Grand Canyon country by the weekend. Some of the thunderstorms that initially form will be high based with the potential to produce strong thunderstorm outflow winds then wetter storms will replace the higher based storms as the moisture progresses northwestward.

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