Storm Events Database
- Data Access
- Search
- FTP Access
- Database Download
- Storm Data Publication
- Documentation
- Storm Data FAQ
- Storm Data Preparation
- Tornado EF Scale
- External Resources
- NOAA's SPC Reports
- NOAA's SPC WCM Page
- SHELDUS
Storm Events Database
Event Details
| Event | Hail |
| Magnitude | 1.75 in. |
| State | OKLAHOMA |
| County/Area | WASHITA |
| WFO | OUN |
| Begin Date | 11/07/2011 17:18:00 CST-6 |
| Begin Range | 4 |
| Begin Azimuth | W |
| Begin Location | BESSIE |
| Begin Lat/Lon | 35.38/-99.06 |
| End Date | 11/07/2011 17:18:00 CST-6 |
| Deaths Direct/Indirect | 0/0 (fatality details below, when available...) |
| Injuries Direct/Indirect | 0/0 |
| Property Damage | 0.00K |
| Crop Damage | 0.00K |
| Episode Narrative | A powerful storm system moving through the southern Great Plains produced tornadoes, large hail, damaging winds and flooding across parts of Oklahoma and western north Texas on November 7-8, 2011. The strong storm system generated severe weather including tornadoes, large hail, damaging winds and flooding from the early afternoon of November 7th through the early morning of November 8th. Several supercell thunderstorms developed over southwest Oklahoma during the mid-afternoon hours and moved northeast. One particularly nasty supercell thunderstorm developed over northern Wilbarger county in north Texas. This thunderstorm moved northeast into Tillman county, eventually producing at least eight tornadoes over a five county area. Two of the tornadoes moved near two Oklahoma Mesonet sites, both taking direct hits. The Mesonet site at Tipton measured 86.4 mph before it was destroyed. The Mesonet site near Fort Cobb measured 91.4 mph before it was destroyed. Both sites also recorded significant drops in surface pressure. Other supercells over southwest Oklahoma eventually congealed into a complex of storms and moved east into central Oklahoma. Numerous reports of high winds (92 mph near Clinton, OK) and hail up to golf ball-size were reported. The severe threat transitioned to a heavy rain and high threat after sunset. |
| Event Narrative | The wind gusts were also estimated at 60 mph. |
All events for this episode:
| Location | County/Zone | St. | Date | Time | T.Z. | Type | Mag | Dth | Inj | PrD | CrD |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Totals: | 0 | 0 | 0.00K | 0.00K | |||||||
| HOLLIS | HARMON CO. | OK | 11/07/2011 | 13:50 | CST-6 | Hail | 1.75 in. | 0 | 0 | 0.00K | 0.00K |
| REED | GREER CO. | OK | 11/07/2011 | 14:25 | CST-6 | Hail | 1.75 in. | 0 | 0 | 0.00K | 0.00K |
| MANGUM | GREER CO. | OK | 11/07/2011 | 14:30 | CST-6 | Hail | 1.75 in. | 0 | 0 | 0.00K | 0.00K |
| HESS | JACKSON CO. | OK | 11/07/2011 | 14:39 | CST-6 | Tornado | EF0 | 0 | 0 | 0.00K | 0.00K |
| TIPTON ARPT | TILLMAN CO. | OK | 11/07/2011 | 14:43 | CST-6 | Tornado | EF4 | 0 | 0 | 0.00K | 0.00K |
| MANITOU | TILLMAN CO. | OK | 11/07/2011 | 15:15 | CST-6 | Tornado | EF0 | 0 | 0 | 0.00K | 0.00K |
| LONE WOLF | KIOWA CO. | OK | 11/07/2011 | 15:20 | CST-6 | Hail | 1.25 in. | 0 | 0 | 0.00K | 0.00K |
| SNYDER | KIOWA CO. | OK | 11/07/2011 | 15:25 | CST-6 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 0.00K | 0.00K |
| SNYDER | KIOWA CO. | OK | 11/07/2011 | 15:26 | CST-6 | Tornado | EF0 | 0 | 0 | 0.00K | 0.00K |
| SNYDER | KIOWA CO. | OK | 11/07/2011 | 15:38 | CST-6 | Tornado | EF0 | 0 | 0 | 0.00K | 0.00K |
| SNYDER | KIOWA CO. | OK | 11/07/2011 | 15:50 | CST-6 | Hail | 2.00 in. | 0 | 0 | 0.00K | 0.00K |
| MOUNTAIN PARK | KIOWA CO. | OK | 11/07/2011 | 15:52 | CST-6 | Tornado | EF0 | 0 | 0 | 0.00K | 0.00K |
| WICHITA MTNS NWR HQ | COMANCHE CO. | OK | 11/07/2011 | 15:53 | CST-6 | Tornado | EF0 | 0 | 0 | 0.00K | 0.00K |
| SAYRE | BECKHAM CO. | OK | 11/07/2011 | 16:12 | CST-6 | Hail | 1.75 in. | 0 | 0 | 0.00K | 0.00K |
| COOPERTON | KIOWA CO. | OK | 11/07/2011 | 16:16 | CST-6 | Tornado | EF0 | 0 | 0 | 0.00K | 0.00K |
| COOPERTON | KIOWA CO. | OK | 11/07/2011 | 16:19 | CST-6 | Tornado | EF0 | 0 | 0 | 0.00K | 0.00K |
| COOPERTON | KIOWA CO. | OK | 11/07/2011 | 16:24 | CST-6 | Tornado | EF0 | 0 | 0 | 0.00K | 0.00K |
| TONKAWA | KAY CO. | OK | 11/07/2011 | 16:34 | CST-6 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| CARNEGIE | CADDO CO. | OK | 11/07/2011 | 16:40 | CST-6 | Tornado | EF0 | 0 | 0 | 0.00K | 0.00K |
| BURNS FLAT | WASHITA CO. | OK | 11/07/2011 | 16:48 | CST-6 | Thunderstorm Wind | 80 kts. MG | 0 | 0 | 0.00K | 0.00K |
| CARNEGIE | CADDO CO. | OK | 11/07/2011 | 16:51 | CST-6 | Tornado | EF1 | 0 | 0 | 0.00K | 0.00K |
| BESSIE | WASHITA CO. | OK | 11/07/2011 | 17:18 | CST-6 | Hail | 1.75 in. | 0 | 0 | 0.00K | 0.00K |
| CORN | WASHITA CO. | OK | 11/07/2011 | 17:31 | CST-6 | Hail | 1.75 in. | 0 | 0 | 0.00K | 0.00K |
| HYDRO | CADDO CO. | OK | 11/07/2011 | 18:06 | CST-6 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| MARTHA | JACKSON CO. | OK | 11/07/2011 | 18:39 | CST-6 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| ALTUS | JACKSON CO. | OK | 11/07/2011 | 18:39 | CST-6 | Hail | 1.75 in. | 0 | 0 | 0.00K | 0.00K |
| BLAIR | JACKSON CO. | OK | 11/07/2011 | 18:41 | CST-6 | Hail | 1.75 in. | 0 | 0 | 0.00K | 0.00K |
| MARTHA | JACKSON CO. | OK | 11/07/2011 | 18:43 | CST-6 | Hail | 1.75 in. | 0 | 0 | 0.00K | 0.00K |
| (LTS)ALTUS AFB | JACKSON CO. | OK | 11/07/2011 | 19:12 | CST-6 | Thunderstorm Wind | 58 kts. MG | 0 | 0 | 0.00K | 0.00K |
| (LTS)ALTUS AFB | JACKSON CO. | OK | 11/07/2011 | 20:14 | CST-6 | Thunderstorm Wind | 63 kts. MG | 0 | 0 | 0.00K | 0.00K |
| ALTUS | JACKSON CO. | OK | 11/07/2011 | 20:15 | CST-6 | Thunderstorm Wind | 54 kts. MG | 0 | 0 | 0.00K | 0.00K |
| PERKINS | PAYNE CO. | OK | 11/07/2011 | 20:25 | CST-6 | Thunderstorm Wind | 57 kts. MG | 0 | 0 | 0.00K | 0.00K |
| PERKINS | PAYNE CO. | OK | 11/07/2011 | 20:30 | CST-6 | Thunderstorm Wind | 70 kts. MG | 0 | 0 | 0.00K | 0.00K |
| FT COBB | CADDO CO. | OK | 11/07/2011 | 21:30 | CST-6 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| NEWCASTLE | MCCLAIN CO. | OK | 11/07/2011 | 22:45 | CST-6 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| BLANCHARD | MCCLAIN CO. | OK | 11/07/2011 | 22:47 | CST-6 | Tornado | EF1 | 0 | 0 | 0.00K | 0.00K |
| NORMAN | CLEVELAND CO. | OK | 11/07/2011 | 23:00 | CST-6 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 0.00K | 0.00K |
| (OUN)NORMAN WESTHEIMER ARPT | CLEVELAND CO. | OK | 11/07/2011 | 23:06 | CST-6 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 0.00K | 0.00K |
| DICKSON | CARTER CO. | OK | 11/08/2011 | 07:15 | CST-6 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 0.00K | 0.00K |
| LEBANON | MARSHALL CO. | OK | 11/08/2011 | 07:15 | CST-6 | Thunderstorm Wind | 53 kts. MG | 0 | 0 | 0.00K | 0.00K |
| MADILL | MARSHALL CO. | OK | 11/08/2011 | 07:25 | CST-6 | Thunderstorm Wind | 56 kts. EG | 0 | 0 | 0.00K | 0.00K |
| TISHOMINGO | JOHNSTON CO. | OK | 11/08/2011 | 07:40 | CST-6 | Thunderstorm Wind | 67 kts. MG | 0 | 0 | 0.00K | 0.00K |
| Totals: | 0 | 0 | 0.00K | 0.00K |
