A pair of winter storm systems moved across Arizona January 24 through 26. The first brought moderate snow accumulations to several mountain ranges above 6000 feet on January 24. Mt. Lemmon Highway was closed at the base as a result. Thunderstorms produced hail and gusty winds at lower elevations. The second storm brought widespread heavy snow to southeast Arizona above 3500 feet, and even brought slushy  snow accumulations and slippery road conditions to parts of the greater Tucson Metro area. The bulk of the snow fell from the evening of January 25 through the morning of January 26, and was accompanied at times by wind gusts of 35 to 45 mph.  Snow accumulations of 3 to 6 inches occurred between 3500 and 5000 feet with 6 to 12 inches from 5000 to 7000 feet and 12 to 20 inches above 7000 feet. The additional snow forced the closure of Mt. Lemmon Highway near Tucson to continue, and also triggered closures of Highway 191 north of Hannagan Meadow and Route 80 near Bisbee.

Winter Storm in GALIURO AND PINALENO MOUNTAINS, ARIZONA
From 25-JAN-21 15:00:00 to 26-JAN-21 15:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Heavy snow accumulations of 16 to 20 inches combined with winds gusting to 30 mph caused blowing and drifting snow on Mt. Graham.

Winter Storm in WHITE MOUNTAINS OF GRAHAM AND GREENLEE COUNTIES, ARIZONA
From 25-JAN-21 14:00:00 to 26-JAN-21 05:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Heavy snow accumulations of 12 inches combined with winds gusting to 45 mph caused blowing and drifting snow in the White Mountains. Highway 191 north of Hannagan Meadow was closed.

Winter Weather in SANTA CATALINA AND RINCON MOUNTAINS, ARIZONA
From 24-JAN-21 07:30:00 to 24-JAN-21 23:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Nine to eleven inches of snow fell at the higher elevations of the Santa Catalina Mountains, which caused the closure of Mt Lemmon Highway at the base.

Hail in PIMA, ARIZONA
From 24-JAN-21 11:00:00 to 24-JAN-21 11:30:00 (MST-7)
Location: NAVISKA
Magnitude: 0.50 
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Thunderstorms produced small hail that nearly covered portions of roadways in Marana. Slick road surfaces led to several traffic accidents involving a total of least 10 vehicles on Interstate 10.

Winter Storm in CHIRICAHUA MOUNTAINS, ARIZONA
From 25-JAN-21 19:00:00 to 26-JAN-21 15:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy snow accumulations of 10 to 14 inches combined with winds gusting to 40 mph occurred in the Chiricahua Mountains.  Eleven inches of snow was observed at an elevation of 5500 feet at Paradise.

Winter Storm in SANTA CATALINA AND RINCON MOUNTAINS, ARIZONA
From 25-JAN-21 14:00:00 to 26-JAN-21 13:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heavy snow accumulations of 10 to 14 inches combined with winds gusting to 40 mph caused blowing and drifting snow in the Santa Catalina and Rincon Mountains.  Mount Lemmon Highway remained closed at the base due to the heavy snow.

Winter Storm in UPPER SANTA CRUZ RIVER AND ALTAR VALLEYS, ARIZONA
From 26-JAN-21 00:00:00 to 26-JAN-21 15:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heavy snow accumulations combined with winds gusting to 40 mph to produce slick roads and poor visibilities at elevations between 3500 and 5000 feet in parts of Santa Cruz and southern Cochise counties. Snowfall totals of 3 to 4 inches were common near Nogales, Patagonia, Sierra Vista and Portal with localized higher amounts around 6 inches near Elgin, Sonoita and Hereford.

Winter Storm in UPPER SAN PEDRO RIVER VALLEY, ARIZONA
From 26-JAN-21 00:00:00 to 26-JAN-21 15:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heavy snow accumulations combined with winds gusting to 40 mph to produce slick roads and poor visibilities at elevations between 3500 and 5000 feet in parts of Santa Cruz and southern Cochise counties. Snowfall totals of 3 to 4 inches were common near Nogales, Patagonia, Sierra Vista and Portal with localized higher amounts around 6 inches near Elgin, Sonoita and Hereford.

Winter Storm in EASTERN COCHISE COUNTY BELOW 5000 FEET, ARIZONA
From 26-JAN-21 00:00:00 to 26-JAN-21 15:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heavy snow accumulations combined with winds gusting to 40 mph to produce slick roads and poor visibilities at elevations between 3500 and 5000 feet in parts of Santa Cruz and southern Cochise counties. Snowfall totals of 3 to 4 inches were common near Nogales, Patagonia, Sierra Vista and Portal with localized higher amounts around 6 inches near Elgin, Sonoita and Hereford.

Winter Weather in TUCSON METRO AREA, ARIZONA
From 26-JAN-21 03:00:00 to 26-JAN-21 10:00:00 (MST-7)
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Rain and snow showers created slippery roads in parts of eastern Pima County, which led to numerous, mainly minor, traffic accidents along Interstate 19 near Green Valley and Sahuarita and along Interstate 10 in the northwest Tucson Metro area.  One accident on I-10 near the Cochise County line resulted in a rollover, which caused one east bound lane to be closed for an hour. No injuries were reported.

Thunderstorm Wind in PINAL, ARIZONA
From 25-JAN-21 13:20:00 to 25-JAN-21 13:20:00 (MST-7)
Location: GU KOMELIK
Magnitude: 43.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds caused minor roof damage to a home in North Komelik.  Rain caused further damage inside the home.

Winter Storm in DRAGOON/MULE/HUACHUCA AND SANTA RITA MOUNTAINS, ARIZONA
From 25-JAN-21 16:00:00 to 26-JAN-21 14:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Heavy snow accumulations of 10 to 14 inches combined with winds gusting to 50 mph caused blowing and drifting snow in the Huachuca, Santa Rita and Mule mountains. Ten inches of snow was observed at an elevation of 5500 feet in Bisbee. State Route 80 near Bisbee was closed due to the snow and Cochise County closed most of its government offices on January 26. After the snow ended, a hiker who became stranded during the winter storm was rescued by helicopter from the Huachuca Mountains.  The hiker was treated for frostbite by medical staff.