A potent upper level low moved across southern New Mexico during the evening hours of February 20th. This system would go on to produce several inches of snow with a maximum of 13 inches produced in Hartley County after making a transition from rain and sleet to all snow.  As the upper level low moved into southeastern New Mexico it transitioned from a neutral tilt to a slightly negative tilt. This reorientation provided additional lift across the northern Texas Panhandle which in turn helped intensify snowfall rates. It was in this area where the two highest snow depths occurred, 9 to 13 inch swath across Dallam and Sherman Counties and an 8 to 9 inch swath over Lipscomb County. While the additional lift provided by this reorientation was lesser across the southern Texas Panhandle, it allowed the storms to tap into marginal elevated instability to produce a lesser swath of higher snowfall totals across the southeastern Texas Panhandle. Also the marginal instability led to isolated reports of thundersnow in Clarendon (Donley County). By the early afternoon the upper level low had progressed over central Kansas, removing forcing across the Panhandle and bringing an end to precipitation.
The following is a listing of the highest storm total snowfall for each county: 3.0 inches in Claude (Armstrong County); 1.5 inches in Panhandle (Carson County); 1.0 inch in Wellington (Collingsworth County); 13.0 inches eighteen miles southeast of Felt and fifteen miles north east of Ware (Both Dallam County); 4.1 inches in Clarendon (Donley County); 4.0 inches in Pampa (Gray County); 6.0 inches in Gruver (Hansford County); 3.5 inches in Dalhart (Hartley County); 4.0 inches in Canadian (Hemphill County); 3.0 inches in Fritch (Hutchinson County); 8.0 inches in Darrouzett (Lipscomb County); 6.0 inches nine miles northeast of Dumas (Moore County); 8.0 inches in Perryton (Ochiltree County); 1.5 inches seven miles east-northeast Amarillo (Potter County); 1.0 inch six miles southwest Amarillo (Randall County); 4.0 inches Miami (Roberts County); 6.0 inches in Stratford (Sherman County); and 7.0 inches in Allison (Wheeler County).

Winter Storm in DALLAM, TEXAS
From 20-FEB-13 19:00:00 to 21-FEB-13 14:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A member of the public reported 13.0 inches of snow eighteen miles southeast of the city of Felt (Dallam County). They reported the majority of the snow feel prior to 9 AM CST.

Winter Storm in DALLAM, TEXAS
From 20-FEB-13 19:00:00 to 21-FEB-13 14:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The Dallam County Sheriff's Office reported 13.0 inches of snow fifteen miles northeast of the city of Ware (Dallam County).

Winter Storm in DALLAM, TEXAS
From 20-FEB-13 19:00:00 to 21-FEB-13 14:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The Dallam County Sheriff's Office reported 12.0 inches of snow five miles southeast of the city of Ware (Dallam County).

Winter Storm in HANSFORD, TEXAS
From 20-FEB-13 19:00:00 to 21-FEB-13 14:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The Hansford County Sheriff's Office reported 6.0 inches of snow in the city of Gruver (Hansford County).

Winter Storm in LIPSCOMB, TEXAS
From 20-FEB-13 19:00:00 to 21-FEB-13 14:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A member of the media reported 8.0 inches of snow in the city of Darrouzett (Lipscomb County).

Winter Storm in MOORE, TEXAS
From 20-FEB-13 19:00:00 to 21-FEB-13 14:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported 6.0 inches of snow nine miles northeast of the city of Dumas (Moore County).

Winter Storm in OCHILTREE, TEXAS
From 20-FEB-13 19:00:00 to 21-FEB-13 14:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The Ochiltree County Sheriff's Office out of Perryton (Ochiltree County) reported 8.0 inches of snow.

Winter Storm in SHERMAN, TEXAS
From 20-FEB-13 19:00:00 to 21-FEB-13 14:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A member of the public reported 6.0 inches of snow in the town of Stratford (Sherman County).

Winter Storm in WHEELER, TEXAS
From 20-FEB-13 19:00:00 to 21-FEB-13 14:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The National Weather Service COOP Observer in Allison (Wheeler County) reported 7.0 inches of snow.