597 ACUS02 KWNS 300543 SWODY2 SPC AC 300541 Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1141 PM CST Mon Dec 29 2025 Valid 311200Z - 011200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible during the early morning of New Year's Day along coastal southern California. ...Coastal southern CA... A low-amplitude shortwave trough will approach but remain offshore of coastal southern CA through 12Z Thursday. The compact mid-level cold core might reach the Channel Islands, with generally slight cooling farther east. This may be sufficient for charge separation near the end of the period, as low-topped convection is expected to increase overnight ahead of the trough. Despite modest low-level hodograph curvature, weak effective bulk shear amid a meager buoyancy profile suggests convection should remain too shallow/disorganized for an appreciable severe threat. ..Grams.. 12/30/2025 $$