SPC 0700Z Day 2 Outlook
Day 2 Convective Outlook CORR 1 NWS Storm Prediction Center Norman OK 0147 AM CST Fri Jan 22 2021 Valid 231200Z - 241200Z ...NO THUNDERSTORM AREAS FORECAST... CORRECTED ...SUMMARY... Severe thunderstorms are not expected across the U.S. on Saturday. ...Synopsis... While weakly anticyclonic westerly/west-northwesterly flow aloft prevails over the eastern half of the U.S. Saturday, an upper trough will continue moving southeastward across the California and the Great Basin, toward the Desert Southwest through the period. At the surface, an evolving cold front is forecast to shift across Utah and Arizona through the end of the period, while high pressure prevails east of the Rockies. While showers will occur over portions of the West, a cool air/steep lapse rates aloft accompany the upper troughing, instability will generally be insufficient to support thunderstorms. A few sporadic flashes may occur across the region, but coverage is expected to remain too limited to warrant inclusion of a 10% thunder area. ..Goss.. 01/22/2021
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