Alert archive / Oklahoma / Tornado Warnings in 2011
Tornado Warning 1, NWS Amarillo, TX
NWS Amarillo, TX issued this tornado warning at Jun 11, 2011, 6:55 PM CDT for Beaver County, Texas County, Oklahoma. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 11, 2011, 6:55 PM CDT (23:55 UTC)
- Expired
- Jun 11, 2011, 7:30 PM CDT
- In force
- 35 min
- Issued by
- NWS Amarillo, TX
- Area
- Storm-based polygon
Counties Beaver County, OK, Texas County, OK
The radar
The Dodge City radar (KDDC), 128 km from the middle of the area, began a volume at 23:58 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 11, 3:39 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Dodge City, (KDDC), launched 12:00Z, 11.9 hours before the alert went out and 133 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1356 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 152 m²/s²
- 0-3 km storm-relative helicity
- 177 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
128 WFUS54 KAMA 112355 TORAMA OKC007-139-120030- /O.NEW.KAMA.TO.W.0001.110611T2355Z-110612T0030Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE AMARILLO TX 655 PM CDT SAT JUN 11 2011 THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A * TORNADO WARNING FOR... NORTHEASTERN TEXAS COUNTY IN THE PANHANDLE OF OKLAHOMA. NORTHWESTERN BEAVER COUNTY IN THE PANHANDLE OF OKLAHOMA. * UNTIL 730 PM CDT * AT 653 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS HAVE DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE MOST DANGEROUS PART OF THIS STORM WAS LOCATED NEAR TYRONE...OR ABOUT 13 MILES SOUTHWEST OF LIBERAL...MOVING EAST AT 15 MPH. * SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE TYRONE AND HOOKER. PRECAUTIONARY/PREPAREDNESS ACTIONS... A TORNADO MAY FORM AT ANY TIME...TAKE COVER NOW. ABANDON MOBILE HOMES AND VEHICLES FOR MORE SUBSTANTIAL SHELTER. AVOID WINDOWS. && LAT...LON 3689 10076 3685 10123 3700 10127 3701 10079 TIME...MOT...LOC 2355Z 257DEG 10KT 3696 10113 $$ TB
1 follow-up statement
930 WWUS54 KAMA 120009 SVSAMA SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE AMARILLO TX 709 PM CDT SAT JUN 11 2011 OKC007-139-120030- /O.CON.KAMA.TO.W.0001.000000T0000Z-110612T0030Z/ TEXAS OK-BEAVER OK- 709 PM CDT SAT JUN 11 2011 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR NORTHWESTERN BEAVER AND NORTHEASTERN TEXAS COUNTIES... AT 707 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO DETECT A TORNADO. THIS POSSIBLE TORNADO WAS LOCATED NEAR TYRONE...OR ABOUT 11 MILES SOUTHWEST OF LIBERAL...MOVING EAST AT 15 MPH. THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE INDICATED COUNTIES. A TORNADO MAY FORM AT ANY TIME...TAKE COVER NOW. ABANDON MOBILE HOMES AND VEHICLES FOR MORE SUBSTANTIAL SHELTER. AVOID WINDOWS. TO REPORT SEVERE WEATHER...PLEASE CALL THE NATIONAL WEATHER SERVICE AT 8 0 6 3 3 5 1 1 2 1. LAT...LON 3689 10076 3685 10123 3700 10127 3701 10079 TIME...MOT...LOC 0008Z 257DEG 10KT 3694 10107 $$ TB
The office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 3:24 PM CDT | Fire Weather Watch | AMA | Cimarron, Texas | 12 hr |
| Jun 11, 5:17 PM CDT | Severe Thunderstorm Warning | AMA | Texas | 28 min |
| Jun 11, 6:16 PM CDT | Severe Thunderstorm Warning | AMA | Beaver | 44 min |
Nearby
Tornado Warnings in Oklahoma, 2011Every tornado warning in 2011Tornadoes in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.