Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0644 PM CST Thu Feb 12 2026 Valid 130100Z - 131200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected. ...01z Update... Upper trough is settling south across the Great Basin/CA early this evening. Weak buoyancy developed beneath this feature as steep lapse rates and some boundary layer heating have contributed to a few hundred J/kg MUCAPE. 00z soundings from this region support this, especially LKN and GJT where surface-based parcels are notably uninhibited. Latest radar/lightning data suggest isolated thunderstorms continue across eastern NV into western CO. Over the next few hours this activity should gradually wane as the boundary layer begins to cool. ..Darrow.. 02/13/2026Read more