SPC 0830Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0102 AM CST Sat Dec 05 2020 Valid 071200Z - 081200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are expected across the southern Florida peninsula on Monday. ...Synopsis... A mean upper trough will persist across the eastern U.S. on Monday while an upper ridge builds across the western half of the country. Within the western upper ridge, an upper low over southern CA will become cut-off and shift southwest over the Pacific offshore from southern CA/northern Baja. At the surface, high pressure will envelop much of the CONUS, bringing dry and stable conditions with little chance of thunderstorm activity. The exception will be across the southern Florida peninsula, mainly during the morning hours. A weak surface low offshore the southwest FL coast will quickly shift east/northeast by early afternoon, and a cold front will sag southward. Weak instability and poor lapse rates should limit severe potential, though strong southwesterly deep layer flow will persist through at least midday. This could result in a briefly organized storm or two, capable of gusty winds. ..Leitman.. 12/05/2020
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