A strong and moist Pacific storm system continued to move across northern Arizona for the first two days of March. Heavy snow and rain started falling on February 27 and continued through March 2. Snow from this storm system went on to trigger several avalanches in the mountain peaks above 11,500 feet just north of Flagstaff during and after the storm.

Heavy Snow in KAIBAB PLATEAU, ARIZONA
From 01-MAR-15 00:00:00 to 03-MAR-15 03:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Jacob Lake reported a storm total of 16 inches.

Heavy Rain in COCONINO, ARIZONA
From 01-MAR-15 00:00:00 to 03-MAR-15 03:00:00 (MST-7)
Location: (FLG)FLAGSTAFF ARPT
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

The RAWS in Oak Creek Canyon reported a total of 5.78 inches or rain for the duration of the storm. The peak flow in Oak Creek was over 8,200 CFS in late February.

Heavy Rain in GILA, ARIZONA
From 01-MAR-15 00:00:00 to 02-MAR-15 18:00:00 (MST-7)
Location: (0E4)PAYSON ARPT
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy rain fell across Northern Gila County. Storm totals include (inches): Pine 3.18, Promontory RAWS 2.51, and Payson 1.97.

Heavy Rain in YAVAPAI, ARIZONA
From 01-MAR-15 00:00:00 to 02-MAR-15 18:00:00 (MST-7)
Location: CAMP WOOD
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Heavy rain fell across Yavapai County.  Some of the storm totals include (in inches): Crown King 2.45, Cherry 2.40, near Skull Valley 2.34, Iron Springs 2.31,  near Bagdad 1.93, and Prescott Airport 1.45.

Avalanche in WESTERN MOGOLLON RIM, ARIZONA
From 02-MAR-15 14:00:00 to 02-MAR-15 14:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Heavy snow (over 80 inches in 10 days) caused a large avalanche in the San Fransisco Peaks just north of Flagstaff. The top of the wide avalanche started along a north-south ridge and and continued to an east-west ridge. The headwall was an estimated half mile wide. The avalanche dropped between 500 and 800 feet. The avalanche was in a wilderness area where there are no structures. Other avalanches also occurred during and after this storm as a result of the heavy snow and thaw cycles. Pinpointing the time of the avalanches is difficult. Avalanches were also reported in Abineau Canyon, Fremont Peak, and Doyle peak. Some of these slides toppled trees that were 24 inches in diameter.

Heavy Snow in WESTERN MOGOLLON RIM, ARIZONA
From 01-MAR-15 00:00:00 to 02-MAR-15 22:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Snow continued to fall over the Western Mogollon Rim through March 2nd.  The Flagstaff Airport received 16 inches the first two days of March and close to 18 inches storm total. Over 4 inches of storm total liquid equivalent fell at the airport. Twelve inches of snow was reported northwest of Park and 9 inches fell in Williams.

Heavy Snow in GRAND CANYON COUNTRY, ARIZONA
From 01-MAR-15 05:00:00 to 02-MAR-15 17:30:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Six to seven inches of snow fell at the Grand Canyon Airport after the rain changed over to snow.