Deeply Mixed Air Mass Powers 70 MPH Gusts in Plains Thunderstorms — SevereWX

Scattered thunderstorms are firing this afternoon across parts of eastern New Mexico, the Texas Panhandle, and southwest Oklahoma, fueled by a scorching air mass with surface temps soaring to 100-105°F.

The SPC's Mesoscale Discussion 1811 highlights moderate destabilization (1000-2000 J/kg SBCAPE) on the edge of an upper trough, combined with steep low-level lapse rates of 8-9°C/km. This setup favors deep inverted-V profiles, priming robust downdrafts capable of producing severe wind gusts of 55-70 mph. Hail up to 1.25 inches is also possible.

Storms are increasing along a surface wind shift and cold front, moving off higher terrain in NM and spreading east. Moderate shear (20-25 kt) supports a multicell mode with clustering, focusing the severe risk east of NM's mountains into the western TX Panhandle. Isolated activity could pulse along the front in the TX Panhandle and SW OK.

With coverage and intensity ramping up, the SPC notes a 40% chance of issuing a Severe Thunderstorm Watch this afternoon. Storms should peak through evening.

Key Threats:

Monitor radar closely if in the risk area. Have a severe weather plan: secure outdoors items, seek shelter if storms approach, and stay weather-aware via local NWS updates.