A long wave trough moved across Arizona on on New Year's Day with bringing widespread precipitation. Snow levels were initially relatively high for this time of the year.  The snow levels dropped rapidly as a cold front associated with the trough moved across the area. The heavy rain and rain on snow caused flooding in the lower elevations.

Flash Flood in YAVAPAI, ARIZONA
From 01-JAN-23 17:30:00 to 02-JAN-23 08:00:00 (MST-7)
Location: RIMROCK ARPT
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A video on social media showed flash flooding on Wet Beaver Creek between Rim Rock and Lake Montezuma.

Heavy Snow in GRAND CANYON COUNTRY, ARIZONA
From 01-JAN-23 11:30:00 to 02-JAN-23 18:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Ten inches of new snow fell at the South Rim of The Grand Canyon.

Heavy Snow in YAVAPAI COUNTY MOUNTAINS, ARIZONA
From 01-JAN-23 06:30:00 to 02-JAN-23 15:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Snowfall reports across Yavapai county include (in inches): Walker 8.5, 1 ESE Prescott Courthouse 6.0, and 3 S Prescott Valley 4.0.

Flood in YAVAPAI, ARIZONA
From 01-JAN-23 10:00:00 to 02-JAN-23 20:00:00 (MST-7)
Location: WEST SEDONA
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Oak Creek began to rise at the river gauge in Sedona 1100 AM on January 1 (550 CFS), crested at over 4,500 CFC at around 500 PM (a 4 foot rise), and then returned to near normal by 1100 AM on January 2.  The Oak Creek gauge near Cornville began to rise at 400 PM on January 1 (440 CFS), crested at over 4,000 CFC in the action stage at around 900 PM (a 4.9 foot rise), and then returned to near normal after 500 PM on January 2. A video on social media showed flooding of low water crossings on Oak Creek near Rainbow Mobile Home Park and The Rainbow Trout Farm.

Heavy Snow in NORTHERN GILA COUNTY, ARIZONA
From 01-JAN-23 21:00:00 to 02-JAN-23 18:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Just over 4 inches (4.3) of snow fell near the Payson Airport at an elevation of 5,100 feet. A spotter 4 miles southeast of Washington Park reported 8 inches of snow by 730 AM on January 2.

Heavy Snow in WHITE MOUNTAINS, ARIZONA
From 01-JAN-23 13:00:00 to 02-JAN-23 18:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Ten inches of snow fell near McNary by 800 PM. Eight inches of snow fell in Show Low by 800 on January 2. Pinetop-Lakeside received 16 inches of snow.

Heavy Snow in WESTERN MOGOLLON RIM, ARIZONA
From 01-JAN-23 11:00:00 to 02-JAN-23 10:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Eight inches of snow fell in Kachina Village between 300 PM and 1000 PM.  Other snow totals across the Western Mogollon Rim include (in inches): Kachina Village 12.5, Flagstaff Airport 12.1,  Munds Park 12.0, Williams 11.0, Bellemont (NWS Flagstaff)
10.8,  5 WSW Parks 9.5, and 5 E Mountainaire 9.0.

Heavy Snow in EASTERN MOGOLLON RIM, ARIZONA
From 01-JAN-23 08:00:00 to 02-JAN-23 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Twenty inches of new snow fell in Forest Lakes.