North Texas Cap Break Looms for Supercell Hail, Gusts Surge — SevereWX
SPC Mesoscale Discussion 1511 flags a ramp-up in thunderstorm activity across portions of north and northwest Texas this afternoon into evening.
An outflow boundary stretches from near the Red River northwest into the southern Texas Panhandle, sparking scattered elevated storms in southern Oklahoma that are already showing signs of strengthening—MRMS MESH nearing 1-inch hail cores aloft. A lingering cap (weak CIN) is fading fast with added heating and moisture, expected to fully erode by 3-4 PM CDT (20-21Z).
South of the boundary, a burgeoning cumulus field amid 1000-2000 J/kg MLCAPE sets the stage for intensifying storms. Modest but veering winds provide enough effective shear for initial supercell structures, priming risks of 1-1.75-inch hail and strong outflow gusts up to 70 mph. Later, activity could cluster and propagate forward, shifting emphasis to damaging winds.
SPC eyes a severe thunderstorm watch within the next couple hours (60% probability, valid through ~2:45 PM CDT). The primed area spans from near Wichita Falls southwest toward Lubbock and the Permian Basin fringes—check the SPC graphic for details.
This setup echoes recent Plains action but pivots westward as the pattern evolves. Stay tuned for watch updates from FWD, LUB, AMA, and others.
Preparedness: Monitor radar closely, secure outdoor items, and have a severe weather plan ready—hail this size can damage vehicles and property, while gusts pose hazards to power lines and trees.