SPC Nov 30, 2020 0700 UTC Day 2 Convective Outlook
SPC 0700Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1157 PM CST Sun Nov 29 2020 Valid 011200Z - 021200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected on Tuesday. ...Synopsis... A mature mid-latitude cyclone, with strong flow throughout its eastern half, is forecast to be centered over the upper OH Valley early Tuesday morning. This system is expected to move northward/northeastward throughout the day while continuing to occlude. Shortwave ridging is anticipated in its wake over the MS Valley while a pair of cyclones drop southward/southeastward into the Plains. By early Wednesday morning, the southernmost cyclone will likely be centered over the TX Panhandle while the northernmost cyclone will likely be centered over the eastern MT/WY and the western Dakotas. Short wavelength between the lead cyclone and pair of cyclones in its wake will lead to a persistence of the cold, continental air mass over the central and eastern CONUS. The only exception is across the TX Coast, where southerly low-level flow will promote moisture return ahead of an approaching cold front. Enough instability and lift will be present for isolated lightning flashes. Offshore trajectories will maintain stable conditions across the western CONUS. ..Mosier.. 11/30/2020
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