Moisture from Priscilla and a new tropical depression (Seventeen-E) will send rounds of heavy rain over part of northern Mexico and the southwestern United States from late this week to next week. AccuWeather meteorologists warn that dangerous flash flooding is likely to unfold in the region.

Priscilla peaked as a Category 2 hurricane on Tuesday, but the storm is losing wind intensity as it nears Mexico's Baja Peninsula. Steering currents will guide the diminishing circulation northeastward over northern Mexico by this weekend. But as the winds drop off, moisture will be maintained as a tropical rainstorm.

Copious amounts of rain will fall on terrain in parts of northern Mexico, Arizona, southern Utah, western Colorado and western New Mexico. The arid landscape, steep elevations and rock

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