SPC Feb 1, 2021 1730 UTC Day 2 Convective Outlook
SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1056 AM CST Mon Feb 01 2021 Valid 021200Z - 031200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected on Tuesday. ...Synopsis... A mature upper cyclone over the mid-Atlantic will continue to deepen as it pivots northeast toward southern New England on Tuesday. Snow showers associated with this system will continue across much of the Northeast for at least parts of Tuesday. Further west, an amplified upper ridge will migrate eastward across the Plains while a shortwave trough moves inland over the Pacific Northwest and northern Rockies. A few lightning flashes are possible near the WA/OR coasts as the upper trough approaches and a surface low develops southward from the BC coast into western WA. Steepening midlevel lapse rates and cold temperatures aloft will foster weak instability near the coast, and a few thunderstorms are possible during the afternoon and evening ahead of a surface cold front. ..Leitman.. 02/01/2021
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