A potent upper level storm system passed over west Texas on the 13th and resulted in strong westerly gradient winds and a few severe thunderstorms. A line of strong to severe storms swept eastward over the region in advance of a dryline early in the day. A few storms became severe and produced large hail in Lubbock and Stonewall Counties. The squall line was followed by increasing westerly gradient winds and areas of blowing dust. By early evening, high-based showers and thunderstorms under the upper level cold pool generated at least one isolated severe wind gust in southeastern Hockley County. No damage was reported throughout the event.
Severe westerly gradient winds that were recorded by the Texas Tech University West Texas Mesonet were as follows: 61 mph at Denver City (Yoakum County), 58 mph at Guthrie (King County), 58 mph at Post (Garza County), and 58 mph at Tahoka (Lynn County).

High Wind in YOAKUM, TEXAS
From 13-APR-07 11:10:00 to 13-APR-07 15:00:00 (CST-6)
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Severe peak wind gusts measured by the Texas Tech University West Texas Mesonet include: 61 mph at Denver City (Yoakum County), 58 mph at Guthrie (King County), 58 mph at Post (Garza County), and 58 mph at Tahoka (Lynn County).

High Wind in LYNN, TEXAS
From 13-APR-07 11:10:00 to 13-APR-07 15:00:00 (CST-6)
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Severe peak wind gusts measured by the Texas Tech University West Texas Mesonet include: 61 mph at Denver City (Yoakum County), 58 mph at Guthrie (King County), 58 mph at Post (Garza County), and 58 mph at Tahoka (Lynn County).

Hail in LUBBOCK, TEXAS
From 13-APR-07 09:25:00 to 13-APR-07 09:31:00 (CST-6)
Location: LUBBOCK
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Multiple reports of hail were received across the city around 09:30 CST. Most reports indicated that the hail remained small, generally around one half inch in diameter. A Texas Tech University West Texas Mesonet meteorologist reported penny size hail near the intersection of Spur 327 and Loop 289 in southwest Lubbock.

Hail in STONEWALL, TEXAS
From 13-APR-07 12:23:00 to 13-APR-07 12:25:00 (CST-6)
Location: OLD GLORY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Post Office

Postal workers at Old Glory reported pea to penny size hail that was accompanied by 50 mph wind gusts.

High Wind in KING, TEXAS
From 13-APR-07 11:10:00 to 13-APR-07 15:00:00 (CST-6)
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Severe peak wind gusts measured by the Texas Tech University West Texas Mesonet include: 61 mph at Denver City (Yoakum County), 58 mph at Guthrie (King County), 58 mph at Post (Garza County), and 58 mph at Tahoka (Lynn County).

High Wind in GARZA, TEXAS
From 13-APR-07 11:10:00 to 13-APR-07 15:00:00 (CST-6)
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Severe peak wind gusts measured by the Texas Tech University West Texas Mesonet include: 61 mph at Denver City (Yoakum County), 58 mph at Guthrie (King County), 58 mph at Post (Garza County), and 58 mph at Tahoka (Lynn County).

Thunderstorm Wind in HOCKLEY, TEXAS
From 13-APR-07 17:36:00 to 13-APR-07 17:36:00 (CST-6)
Location: ROPESVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A Texas Tech University West Texas Mesonet meteorologist estimated 60 mph thunderstorm wind gusts in rural areas of southeastern Hockley County. No damage was reported.