A cold front interacted with an existing dry line on the 21st of the month. A line of thunderstorms developed early in the day to the north of the Red River. The line continued to move south and east, moving into increasingly unstable air across north Texas. Numerous reports of large hail and damaging winds were reported.

Thunderstorm Wind in DALLAS, TEXAS
From 21-MAY-13 13:40:00 to 21-MAY-13 13:43:00 (CST-6)
Location: GARLAND
Magnitude: 50.00 MS
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A sustained wind of 58 mph was measured at a home in Garland. Report came in through e-spotter.

Thunderstorm Wind in COLLIN, TEXAS
From 21-MAY-13 14:00:00 to 21-MAY-13 14:03:00 (CST-6)
Location: FARMERSVILLE
Magnitude: 54.00 EG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter measured 62 mph winds in Farmersville.

Thunderstorm Wind in COLLIN, TEXAS
From 21-MAY-13 13:33:00 to 21-MAY-13 13:42:00 (CST-6)
Location: FAIRVIEW
Magnitude: 56.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: COOP Observer

The McKinney COOP observer reported large tree limbs and branches blown down.

Thunderstorm Wind in COLLIN, TEXAS
From 21-MAY-13 13:33:00 to 21-MAY-13 13:34:00 (CST-6)
Location: MCKINNEY
Magnitude: 56.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotters reported trees damaged near Virginia Parkway and Carlisle Street in McKinney. Large branches snapped.

Thunderstorm Wind in COLLIN, TEXAS
From 21-MAY-13 13:33:00 to 21-MAY-13 13:35:00 (CST-6)
Location: BIGGERS
Magnitude: 59.00 MG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: ASOS

The McKinney ASOS reported a wind gust of 68 mph.

Thunderstorm Wind in COLLIN, TEXAS
From 21-MAY-13 13:33:00 to 21-MAY-13 13:42:00 (CST-6)
Location: MCKINNEY
Magnitude: 56.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees were blown down in McKinney, at the intersection of Fairway Vista and Valley Creek. Reported by amateur radio operators.

Hail in STEPHENS, TEXAS
From 21-MAY-13 11:15:00 to 21-MAY-13 11:19:00 (CST-6)
Location: HUBBARD CREEK LAKE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Stephens County sheriffs deputies reported quarter sized hail six miles west of Breckenridge.

Hail in BELL, TEXAS
From 21-MAY-13 15:24:00 to 21-MAY-13 15:29:00 (CST-6)
Location: KILLEEN MUNI ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trained spotters reported quarter sized hail.

Hail in BELL, TEXAS
From 21-MAY-13 15:25:00 to 21-MAY-13 15:29:00 (CST-6)
Location: KILLEEN MUNI ARPT
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Nickel sized hail was reported.

Hail in BELL, TEXAS
From 21-MAY-13 16:28:00 to 21-MAY-13 16:32:00 (CST-6)
Location: TEMPLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Thunderstorm Wind in HUNT, TEXAS
From 21-MAY-13 14:45:00 to 21-MAY-13 14:52:00 (CST-6)
Location: CADDO MILLS
Magnitude: 60.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The Hunt County Emergency Manager reported power lines and tree limbs blown down throughout the county. Homes in the Royse City and Caddo Mills areas suffered roof and fence damage. Two barns along County Road 2630 were also damaged by the winds.

Hail in FREESTONE, TEXAS
From 21-MAY-13 17:12:00 to 21-MAY-13 17:15:00 (CST-6)
Location: COTTON GIN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in ROBERTSON, TEXAS
From 21-MAY-13 18:00:00 to 21-MAY-13 18:08:00 (CST-6)
Location: FRANKLIN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in ROBERTSON, TEXAS
From 21-MAY-13 18:08:00 to 21-MAY-13 18:14:00 (CST-6)
Location: FRANKLIN
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail increased to the size of a half dollar in Franklin.

Hail in LEON, TEXAS
From 21-MAY-13 18:50:00 to 21-MAY-13 18:55:00 (CST-6)
Location: LEONA
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in ROBERTSON, TEXAS
From 21-MAY-13 19:00:00 to 21-MAY-13 19:07:00 (CST-6)
Location: MUMFORD
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in NAVARRO, TEXAS
From 21-MAY-13 19:04:00 to 21-MAY-13 19:14:00 (CST-6)
Location: RICE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in HENDERSON, TEXAS
From 21-MAY-13 19:20:00 to 21-MAY-13 19:24:00 (CST-6)
Location: CEDAR CREEK RES NORT
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in TARRANT, TEXAS
From 21-MAY-13 13:00:00 to 21-MAY-13 13:05:00 (CST-6)
Location: GRAPEVINE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

A former NWS employee reported a wind gust of 60 mph in Grapevine.

Thunderstorm Wind in GRAYSON, TEXAS
From 21-MAY-13 13:25:00 to 21-MAY-13 13:27:00 (CST-6)
Location: GUNTER
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 5.00K
Reported by: Amateur Radio

Trained spotters reported a 14 inch diameter tree was blown down near Gunter.

Thunderstorm Wind in GRAYSON, TEXAS
From 21-MAY-13 13:50:00 to 21-MAY-13 13:52:00 (CST-6)
Location: PILOT GROVE
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 10.00K
Reported by: Amateur Radio

Large trees were blown down due to thunderstorm winds in Pilot Grove.

Hail in ELLIS, TEXAS
From 21-MAY-13 15:22:00 to 21-MAY-13 15:24:00 (CST-6)
Location: PALMER
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in LAMAR, TEXAS
From 21-MAY-13 14:24:00 to 21-MAY-13 14:26:00 (CST-6)
Location: PARIS
Magnitude: 61.00 EG
Property damage: 70.00K
Crop damage: 30.00K
Reported by: Law Enforcement

Paris police reported several trees and power lines blown down in the city of Paris.

Thunderstorm Wind in LAMAR, TEXAS
From 21-MAY-13 14:25:00 to 21-MAY-13 14:29:00 (CST-6)
Location: PARIS
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 5.00K
Reported by: Trained Spotter

A 2 foot diameter tree was snapped in the city of Paris. The damage occurred near the intersection of 10th Street SE and Hearon.

Hail in ELLIS, TEXAS
From 21-MAY-13 15:20:00 to 21-MAY-13 15:24:00 (CST-6)
Location: FERRIS
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in HENDERSON, TEXAS
From 21-MAY-13 16:37:00 to 21-MAY-13 16:46:00 (CST-6)
Location: ATHENS
Magnitude: 61.00 EG
Property damage: 6.00K
Crop damage: 0.00K
Reported by: Newspaper

Several trees and power lines were blown down by thunderstorm winds. The Henderson County Sheriff's Office report showed 16 calls of trees down across the city of Athens and across the county.

Lightning in COOKE, TEXAS
From 21-MAY-13 14:30:00 to 21-MAY-13 18:30:00 (CST-6)
Location: GAINESVILLE
Property damage: 200.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several fires were started by lightning on the afternoon of May 21st. Two houses suffered fire damage after lightning struck their roof. Another lightning strike destroyed a battery of oil tanks near County Road 208.

Thunderstorm Wind in DENTON, TEXAS
From 21-MAY-13 12:45:00 to 21-MAY-13 12:48:00 (CST-6)
Location: PILOT PT
Magnitude: 54.00 MG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter measured a wind gust of 62 mph at the intersection of US377 and FM455.

Thunderstorm Wind in DENTON, TEXAS
From 21-MAY-13 12:38:00 to 21-MAY-13 12:40:00 (CST-6)
Location: DENTON MUNI ARPT
Magnitude: 63.00 MG
Property damage: 35.00K
Crop damage: 0.00K
Reported by: ASOS

The Denton ASOS reported a wind gust of 63 knots.

Thunderstorm Wind in WISE, TEXAS
From 21-MAY-13 12:14:00 to 21-MAY-13 12:17:00 (CST-6)
Location: DECATUR MUNI ARPT
Magnitude: 55.00 MG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: AWOS

The Decatur AWOS reported a wind gust of 55 knots.

Thunderstorm Wind in TARRANT, TEXAS
From 21-MAY-13 12:55:00 to 21-MAY-13 13:10:00 (CST-6)
Location: HASLET
Magnitude: 52.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Public

Roof damage was reported in Haslet. Singles were blown off of a few houses.

Thunderstorm Wind in DALLAS, TEXAS
From 21-MAY-13 13:43:00 to 21-MAY-13 13:46:00 (CST-6)
Location: GARLAND
Magnitude: 60.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter measured a wind gust of 69 mph in Garland.

Thunderstorm Wind in COLLIN, TEXAS
From 21-MAY-13 13:49:00 to 21-MAY-13 13:51:00 (CST-6)
Location: PRINCETON
Magnitude: 56.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter estimated winds near 65 mph in Princeton.

Thunderstorm Wind in BELL, TEXAS
From 21-MAY-13 15:45:00 to 21-MAY-13 15:49:00 (CST-6)
Location: BELTON LAKE
Magnitude: 56.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trained spotters reported damage near Morgans Point. A large tree fell onto a car.

Thunderstorm Wind in LAMAR, TEXAS
From 21-MAY-13 14:30:00 to 21-MAY-13 14:34:00 (CST-6)
Location: RENO
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 5.00K
Reported by: Law Enforcement

Trees and power lines were blown down by thunderstorm winds in the city of Reno.

Hail in BELL, TEXAS
From 21-MAY-13 15:47:00 to 21-MAY-13 15:53:00 (CST-6)
Location: HOOD AFB
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Broadcast media spotter reported nickel to quarter sized hail near Fort Hood.