646 ACUS02 KWNS 280639 SWODY2 SPC AC 280638 Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1238 AM CST Sat Feb 28 2026 Valid 011200Z - 021200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms will be possible on Sunday across parts of south Florida, the southern and central Plains, and in northern California. ...DISCUSSION... A subtle shortwave trough will approach the Florida Peninsula on Sunday. Ahead of the trough, scattered thunderstorms will be possible across south Florida Sunday afternoon near a quasi-stationary front. Further west into the southern and central Plains, elevated thunderstorms will be possible Sunday evening into the overnight within west-northwesterly mid-level flow, from southeast Kansas southwestward across parts of Oklahoma. Finally, isolated thunderstorms may also develop Sunday afternoon as a shortwave trough moves inland across northern California. No severe threat is expected across the continental U.S. on Sunday and Sunday night. ..Broyles.. 02/28/2026 $$