SPC 0730Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0222 AM CDT Thu Oct 15 2020 Valid 171200Z - 181200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Organized severe thunderstorms are not expected across the contiguous United States on Saturday. ...Synopsis and Discussion... A highly amplified upper trough should move northeastward across New England on Saturday. Strong low-level warm advection ahead of this feature may support a couple elevated storms across parts of the immediate New England coast through the early afternoon, but instability is expected to remain rather weak. Farther south, convection may develop along sea breeze boundaries across parts of the central/southern FL Peninsula. A decelerating cold front across this region will likely serve as the northern delimiter of thunderstorm potential. Weak deep-layer shear should preclude an organized severe risk. Low-level moisture is forecast to increase Saturday night across the southern Plains and perhaps lower MS Valley as another shortwave trough embedded within embedded within west-northwesterly mid-level flow advances eastward from the northern/central Plains into the Upper Midwest/Great Lakes. However, elevated thunderstorm potential appears highly uncertain, so have not included a general thunderstorm area at this time. ..Gleason.. 10/15/2020
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