SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1122 AM CST Mon Nov 02 2020 Valid 031200Z - 041200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not forecast across the United States on Tuesday. ...Discussion... Large-scale upper flow over the U.S. is forecast to trend more zonal with time Tuesday, as the large eastern U.S. trough gradually departs, leaving lower-amplitude westerly flow in its wake. A weak upper low over the California vicinity early Tuesday is forecast to advance eastward across the Great Basin/Four Corners states while short-wave troughing embedded in fast westerly flow shifts across the northwestern states. At the surface, aside from lee troughing over the Plains, high pressure will largely prevail. Given the dry/stable airmass covering most of the country, little thunder potential is evident. A few lightning flashes will be possible, embedded within low-topped convective precipitation, across the Four Corners states, as the aforementioned upper low -- and associated cold air aloft/steep lapse rates -- spread across this region. Elsewhere, aside from a possible stray flash over the coastal Pacific Northwest as short-wave upper troughing shifts inland, thunderstorms are not expected. ..Goss.. 11/02/2020
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