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Storm Events Database
Event Details
| Event | Thunderstorm Wind |
| Magnitude | 70 kts. |
| State | TEXAS |
| County/Area | SAN AUGUSTINE |
| WFO | SHV |
| Begin Date | 06/21/2011 17:10:00 CST-6 |
| End Date | 06/21/2011 17:35:00 CST-6 |
| Deaths Direct/Indirect | 0/0 (fatality details below, when available...) |
| Injuries Direct/Indirect | 0/0 |
| Property Damage | 500.00K |
| Crop Damage | 0.00K |
| Episode Narrative | Severe thunderstorms developed in the morning, and again in the|afternoon, on Tuesday, 21 June 2011. The thunderstorms formed after|several days of record setting hot weather, which was the result of a|persistent ridge of high pressure in the middle and upper atmosphere.|On 21 June 2011 a strong trough developed in the middle and upper levels|of the atmosphere moved from west to east across the central Plains|breaking down the upper level ridge over the Four State area. This|strong upper level trough allowed for gusty south winds to occur at the|surface of the atmosphere in the four State area, and brought enough|lift and instability to the atmosphere to allow scattered severe|thunderstorms to develop both in the morning and the afternoon of 21|June 2011. These thunderstorms produced wind damage and a few|tornadoes, in addition to brief episodes of heavy rainfall. |
| Event Narrative | The National Weather Service conducted a storm survey in Nacogdoches and San Augustine County and concluded that damage was the result of a major downburst. Hundreds of trees from Chireno to San Augustine and to the south were either uprooted or snapped. A few single story homes in the Denning area sustained major structural damage due to large oak trees falling onto the homes. Several chicken houses were damaged by the downburst winds along FM road 1196. The roofs were peeled back. Numerous cars were damaged due to fallen trees, such as along FM road 1277, where two full size trucks were pinned by large oak trees. |
All events for this episode:
| Location | County/Zone | St. | Date | Time | T.Z. | Type | Mag | Dth | Inj | PrD | CrD |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Totals: | 0 | 0 | 1.030M | 0.00K | |||||||
| RED RIVER CO. | RED RIVER CO. | TX | 06/21/2011 | 03:45 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| FRANKLIN CO. | FRANKLIN CO. | TX | 06/21/2011 | 03:45 | CST-6 | Thunderstorm Wind | 53 kts. EG | 0 | 0 | 0.00K | 0.00K |
| TITUS CO. | TITUS CO. | TX | 06/21/2011 | 04:05 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| PANOLA CO. | PANOLA CO. | TX | 06/21/2011 | 12:24 | CST-6 | Lightning | 0 | 0 | 30.00K | 0.00K | |
| PANOLA CO. | PANOLA CO. | TX | 06/21/2011 | 13:50 | CST-6 | Thunderstorm Wind | 55 kts. EG | 0 | 0 | 0.00K | 0.00K |
| PANOLA CO. | PANOLA CO. | TX | 06/21/2011 | 14:15 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| PANOLA CO. | PANOLA CO. | TX | 06/21/2011 | 14:24 | CST-6 | Thunderstorm Wind | 53 kts. EG | 0 | 0 | 0.00K | 0.00K |
| SHELBY CO. | SHELBY CO. | TX | 06/21/2011 | 14:55 | CST-6 | Tornado | EF0 | 0 | 0 | 0.00K | 0.00K |
| PANOLA CO. | PANOLA CO. | TX | 06/21/2011 | 15:06 | CST-6 | Hail | 1.75 in. | 0 | 0 | 0.00K | 0.00K |
| SHELBY CO. | SHELBY CO. | TX | 06/21/2011 | 16:00 | CST-6 | Tornado | EF0 | 0 | 0 | 0.00K | 0.00K |
| SHELBY CO. | SHELBY CO. | TX | 06/21/2011 | 16:40 | CST-6 | Hail | 1.75 in. | 0 | 0 | 0.00K | 0.00K |
| NACOGDOCHES CO. | NACOGDOCHES CO. | TX | 06/21/2011 | 16:52 | CST-6 | Thunderstorm Wind | 57 kts. EG | 0 | 0 | 0.00K | 0.00K |
| NACOGDOCHES CO. | NACOGDOCHES CO. | TX | 06/21/2011 | 17:10 | CST-6 | Thunderstorm Wind | 70 kts. EG | 0 | 0 | 500.00K | 0.00K |
| SAN AUGUSTINE CO. | SAN AUGUSTINE CO. | TX | 06/21/2011 | 17:10 | CST-6 | Thunderstorm Wind | 70 kts. EG | 0 | 0 | 500.00K | 0.00K |
| SABINE CO. | SABINE CO. | TX | 06/21/2011 | 19:05 | CST-6 | Thunderstorm Wind | 53 kts. EG | 0 | 0 | 0.00K | 0.00K |
| SABINE CO. | SABINE CO. | TX | 06/21/2011 | 19:20 | CST-6 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| Totals: | 0 | 0 | 1.030M | 0.00K |
