Within the last hour, there was a severe thunderstorm watch issued for southern Oklahoma and northern Texas. Here is the statement from the Storm Prediction Center on this.
The NWS Storm Prediction Center has issued a Severe Thunderstorm Watch for portions of southern Oklahoma & north central Texas effective this Saturday afternoon and evening from 310 PM until 1000 PM CDT.
Hazards/Impacts: Hail to 3 inches in diameter… thunderstorm wind gusts to 70 mph… and dangerous lightning are possible in these areas.
The Severe Thunderstorm Watch area is approximately along and 75 statute miles north and south of a line from 65 miles north-northwest of Brownwood Texas to 65 miles northeast of Paris Texas.
Remember… a Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes.
Discussion: Scattered thunderstorms are expected to develop over north TX and southern OK within then next couple of hours as continued heating weakens the cap. A very unstable air mass is present with cape values of 3000+ j/kg. Sufficient vertical shear will support supercell storms… with very large hail possible from the stronger cells. Damaging winds will also be possible.
Aviation… a few severe thunderstorms with hail surface and aloft to 3 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 550. Mean storm motion vector 25030.