
SPC 1730Z Day 2 Outlook

Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1200 PM CDT Sun Mar 16 2025 Valid 171200Z - 181200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected Monday. ...Discussion... A return to negligible severe potential across the CONUS will occur on Monday. In the West, a broad upper trough will progress with multiple embedded shortwave impulses. The primary impulse will move across parts of CA into the southern Great Basin, aiding in overall amplification of the trough by Monday night. A large plume of cool mid-level temperatures combined with modest boundary-layer heating should support pockets of scant to meager buoyancy. Low-topped convection will be most probable across the Central Valley of CA, where thunder coverage may become scattered during the afternoon. Weak deep-layer shear is expected where instability develops, north of the southern CA jetlet. While small hail and locally gusty winds are possible, organized severe storms are not anticipated. Elsewhere in the West, thunder coverage should be rather isolated. Low-probability thunder with isolated low-topped convection is apparent along the immediate NC coast on Monday afternoon. While a post-frontal environment, scant buoyancy may develop as a sharp gradient in mid-level cooling approaches at peak boundary-layer heating. ..Grams.. 03/16/2025