SPC 0830Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0214 AM CST Sun Nov 15 2020 Valid 171200Z - 181200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Organized severe thunderstorms are not expected Tuesday or Tuesday night. ...Synopsis/Discussion... The upper-level pattern will remain amplified but progressive over the CONUS on Tuesday. A shortwave trough will quickly overspread the Pacific Northwest and advance toward the Canadian Rockies, while upper ridging and surface high pressure prevail over the Plains and Midwest. As a cold front continues to settle southward, thermodynamic profiles may marginally support a few thunderstorms near the far southern Florida Peninsula and Florida Keys. In the West, isolated thunderstorms will also be possible across coastal portions of Washington/Oregon and northern California in association with steepening lapse rates/weak buoyancy related to an inland-advancing shortwave trough and associated frontal band. While organized severe thunderstorms are not currently expected, a few stronger storms capable of gusty winds and small hail cannot be ruled out. ..Guyer.. 11/15/2020
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