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 Weather in HEMPHILL, 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 Hemphill County Sheriff's Office in Canadian (Hemphill County) reported 4.0 inches of snow.

Winter Weather in HUTCHINSON, 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

A trained spotter in Fritch (Hutchinson County) reported 3.0 inches of snow.

Winter Weather in POTTER, 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: Official NWS Observations

The National Weather Service Office in Amarillo (Potter County) reported 1.5 inches of snow.

Winter Weather in RANDALL, 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 media reported 1 inch of snow in Amarillo (Randall County).

Winter Weather in ROBERTS, 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

The Roberts County Emergency Manager reported 4.0 inches of snow in the city of Miami (Roberts County).

Winter Weather in ARMSTRONG, 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 Armstrong County Sheriff's Office in Claude (Armstrong County) reported 3.0 inches of snow.

Winter Weather in CARSON, 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 1.5 inches of snow in Panhandle (Carson County).

Winter Weather in COLLINGSWORTH, 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 Collingsworth County Sheriff's Office in Wellington (Collingsworth County) reported 1 inch of snow.

Winter Weather in DONLEY, 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 Donley County Sheriff's Office in Clarendon (Donley County) reported 4.1 inches of snow.

Winter Weather in GRAY, 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 Gray County Sheriff's Office in Pampa (Gray County) reported 4.0 inches of snow.

Winter Weather in HARTLEY, 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

A member of the public reported 3.5 inches of snow in Dalhart (Hartley County).