Slow Down! Rapid changes in visibility and road conditions are expected with this dangerous snow squall. Be alert for sudden whiteout conditions.

The National Weather Service in Flagstaff has issued a * Snow Squall Warning for... Coconino County in north central Arizona... * Until 1230 PM MST. * At 1158 AM MST, a dangerous snow squall was located over I-17 south of Flagstaff, near Kachina Village. HAZARD...Whiteout conditions with near zero visibility associated with intense bursts of heavy snow and gusty winds leading to blowing snow. Wind gusts up to 35 mph. SOURCE...Radar indicated. IMPACT...Travel will become difficult and potentially dangerous within minutes. This includes the following highways... Interstate 17 between mile markers 329 and 336. State Route 89A near mile marker 397. Locations impacted include... Flagstaff, Kachina Village, Mountainaire, and Pine Del.