Arizona is poised for a significant cold snap as two storm systems make their way through the region, shifting the mild winter weather to a mix of rain in the valleys and snow in the higher elevations. The first system is expected to arrive on January 7, bringing light rain to south-central and southeastern areas, including the Phoenix metro area. A second and colder system will follow closely, set to impact the region from late January 8 into January 9.
Meteorologist Alicia Ryan from the National Weather Service in Phoenix explained that this weather pattern is moving from west to east across the area. Rainfall accumulation in Phoenix could reach up to a quarter of an inch, with temperatures beginning to dip below average by midweek. Seasonal averages for this time typically hover around 67 degrees, but the high temperatures in the coming days are predicted to drop to the low 60s.
As the initial system approaches, the Phoenix area can expect increasing rain chances, particularly in the afternoon. Accumulation in the lower deserts is anticipated to be under half an inch, while higher terrains might see up to 0.75 of an inch. The colder system arriving later may bring additional showers predominantly over higher elevations, along with breezy conditions. Cold temperatures, with lows ranging from the 30s to 40s, are forecast for the morning following the arrival of the second storm.
In contrast, northern Arizona is gearing up for more severe winter weather, with rain and snow likely starting January 7. Initial precipitation is expected to be rain at lower elevations, but snow levels are anticipated to drop significantly as colder air moves in, reaching between 4,500 to 5,500 feet by January 8. Some areas above 6,500 feet could receive several inches of snow through the morning of January 9, with accumulated totals of 2 to 5 inches above 6,000 feet and potentially 8 to 12 inches at elevations exceeding 7,500 feet.
Winter Weather Advisories are in place for multiple regions, including the White Mountains and the Mogollon Rim, while travel impacts are likely on January 8, particularly along Interstate 40 near Flagstaff and Interstate 17 leading toward Munds Park.
Fortunately, conditions are expected to dry out by January 9, allowing for a gradual return to normal temperatures over the weekend. This weather shift not only brings necessary moisture but also seasonal reminders of Arizona’s diverse climate, showcasing both the beauty and challenges brought by winter storms.