SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1029 AM CST Sun Dec 20 2020 Valid 201630Z - 211200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS WESTERN PARTS OF THE FLORIDA PENINSULA... ...SUMMARY... Isolated severe thunderstorms may affect parts of the western Florida Peninsula late this afternoon and evening. ...Western Florida Peninsula... Clusters of thunderstorms are ongoing over the eastern Gulf of Mexico west/southwest of the Tampa/St Petersburg area at midday. This inland-spreading precipitation will tend to delineate the northward extent of modest surface-based destabilization this afternoon as mid/some upper 60s F surface dewpoints otherwise expand northward across the southern/central Florida Peninsula through early/mid-evening. Although the passing shortwave trough will tend to weaken into tonight, residually strong low/mid-level winds will support the possibility of well-organized storms/few supercells near and across the western Florida Peninsula as additional moistening and destabilization occur. A few damaging wind gusts and/or a tornado could occur late this afternoon and evening. ..Guyer/Marsh.. 12/20/2020
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