SPC 0730Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0130 AM CDT Sat Oct 03 2020 Valid 051200Z - 061200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... The risk for severe thunderstorms appears negligible across the U.S. Monday through Monday night. ...Discussion... Models indicate that broad mid-level ridging within the mid-latitude westerlies will develop inland of the Pacific coast, across and east of the Canadian and northern U.S. Rockies during this period. Downstream flow across much of the remainder of the northern and central tier of the U.S. appears likely to remain more or less zonal, with a number of embedded, progressive short wave troughs. This includes one significant perturbation forecast to accelerate east of the northern Mid Atlantic coast, and support further surface wave development along a front across the western Atlantic. In the wake of these features, mid-level subtropical ridging may become a bit more prominent across Florida and the northeastern Gulf of Mexico. In lower levels, models suggest that the surface frontal zone will weaken and redevelop northward across the Peninsula into northern Florida. As the boundary layer continues to moisten, destabilization aided by daytime heating across parts of the Peninsula may contribute to at least some potential for a few thunderstorms Monday afternoon. Elsewhere, generally dry and/or stable conditions are expected to prevail, with negligible risk for thunderstorm activity. ..Kerr.. 10/03/2020
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