ACUS01 KWNS 150455 SWODY1 SPC AC 150454 Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1154 PM CDT Mon Oct 14 2024 Valid 151200Z - 161200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected today or tonight. ...Four Corners States... Isolated to scattered thunderstorms should develop this afternoon, downstream of a weak mid-level low drifting southeast from the Lower CO Valley across AZ. Weak deep-layer shear will limit severe-storm potential. ...Southern Great Lakes to the central Appalachians... A broad and amplified mid-level trough will pivot southward across the East. A swath of cold 500-mb temperatures around -30 C will accompany this trough, supporting steep 700-500 mb lapse rates. With a shallow tropopause and meager surface-based buoyancy, low-topped showers will abound. The deepest of these should produce sporadic lightning flashes, mainly this afternoon. Weak lower-level winds will preclude organized cells. ...FL to far southeast LA... Isolated afternoon thunderstorms are most probable across the southern tip of the peninsula where low-level moisture will be sufficient for deep convection. Modest deep-layer shear and weak mid-level lapse rates should mitigate a severe risk. Farther north, pockets of low-level convergence along a quasi-stationary front over the northeast Gulf and across the north FL Peninsula may be sufficient for around a 10-percent thunderstorm probability during the late afternoon. This front will accelerate south tonight, but any convection along it should remain offshore. ..Grams/Bentley.. 10/15/2024 $$