SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1130 AM CST Sun Dec 06 2020 Valid 071200Z - 081200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS SOUTHERN FLORIDA... ...SUMMARY... A few strong thunderstorms may occur across southern Florida Monday morning. ...Synopsis... An amplified large-scale flow pattern will remain over North America on Monday. A relatively deep trough will shift eastward over the upper Ohio Valley and Appalachians on Monday, with a related cold front continuing to progress southeastward across southern Florida. Meanwhile, a closed low will move south-southwestward over southern California toward off the coast of Baja. A prevalence of dry/stable conditions CONUS-wise will spatiotemporally confine deep convective potential to southern Florida Monday morning. ...Florida Keys and far southern Florida Peninsula... A late-night severe risk tonight into early Monday may persist beyond 12Z Monday and linger for an hour or two, prior to the front moving offshore to the Florida Straits by mid/late morning. Current thinking is that storms will be ongoing Monday morning across the region, including the possibility of a few strong or locally severe storms. This would be in association with a relatively moist (near 70F surface dewpoint) and modestly unstable air mass in the presence of 35-40 kt effective shear. Any such severe risk should wane by mid/late morning. ..Guyer.. 12/06/2020
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