SPC 1300Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0653 AM CST Thu Nov 19 2020 Valid 191300Z - 201200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected today or tonight. ...Synopsis/Discussion... A progressive quasi-zonal flow regime will prevail over the CONUS. There will be limited potential for deep convection owing to the general prevalence of high pressure and associated dry/stable conditions. An exception will be across parts of the coastal Pacific Northwest where some thunderstorms will remain possible today coincident with weak buoyancy and steep lapse rates. However, the chance for isolated thunderstorms should diminish tonight. ..Guyer/Leitman.. 11/19/2020
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