A very strong winter storm moved through Southeast Arizona on December 29th into December 30th. This system started relatively warm on the 29th with the first wave of precipitation and associated cold front with only some of the mountaintops seeing snow. However, an arctic cold front associated with this storm moved through December 30th and lowered snow levels to about 2500 feet with some areas as low as 3000 feet seeing accumulating snow. Some of the mountainous terrain across Southeast Arizona had about 2 feet of snow total.

Winter Storm in TUCSON METRO AREA, ARIZONA
From 30-DEC-10 07:00:00 to 30-DEC-10 15:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Some parts of the Tucson Metro area including the Vail area had about 2 inches of snowfall.

Winter Storm in SANTA CATALINA AND RINCON MOUNTAINS, ARIZONA
From 29-DEC-10 17:00:00 to 30-DEC-10 17:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The higher elevations of the Santa Catalina mountains received about 2 feet of snow for this event.

Winter Storm in CHIRICAHUA MOUNTAINS, ARIZONA
From 30-DEC-10 06:00:00 to 30-DEC-10 17:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Unknown

Heavy snowfall occurred in the higher elevations of the Chiricahua Mountains above 6000 feet.

Winter Storm in SOUTHEAST PINAL COUNTY, ARIZONA
From 30-DEC-10 06:00:00 to 30-DEC-10 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

About 4 inches of snowfall occurred in the Oracle area at an elevation about 4500 feet.

Winter Storm in WHITE MOUNTAINS OF GRAHAM AND GREENLEE COUNTIES, ARIZONA
From 29-DEC-10 15:00:00 to 30-DEC-10 19:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

Hannagan Meadow received about 2 feet of snowfall from this winter storm.

Winter Storm in GALIURO AND PINALENO MOUNTAINS, ARIZONA
From 29-DEC-10 17:00:00 to 30-DEC-10 18:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

The Pinaleno mountains including the Mt. Graham area received well in excess of a foot of snow with this major winter storm.

Winter Storm in UPPER SAN PEDRO RIVER VALLEY, ARIZONA
From 30-DEC-10 08:00:00 to 30-DEC-10 16:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Several inches of snowfall occurred throughout portions of the Upper San Pedro River Valley.

Winter Storm in EASTERN COCHISE COUNTY BELOW 5000 FEET, ARIZONA
From 30-DEC-10 09:00:00 to 30-DEC-10 17:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Unknown

Several inches of snow occurred mainly in northern Cochise county below 5000 feet.

Winter Storm in DRAGOON/MULE/HUACHUCA AND SANTA RITA MOUNTAINS, ARIZONA
From 30-DEC-10 06:00:00 to 30-DEC-10 17:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Unknown

Heavy snowfall occurred in the higher mountain elevations.

Winter Storm in UPPER GILA RIVER AND ARAVAIPA VALLEYS, ARIZONA
From 30-DEC-10 06:00:00 to 30-DEC-10 17:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

The Fort Grant area of Graham County had about 6 inches of snowfall.