SPC 0830Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0100 AM CST Sat Nov 13 2021 Valid 151200Z - 161200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not forecast across the contiguous United States on Monday. ...Synopsis and Discussion... An upper trough should lift northeastward from the eastern states across the western Atlantic and Canadian Maritime provinces on Monday. In its wake, upper ridging should generally prevail across most of the Rockies and Plains. Another upper trough is forecast to move quickly eastward across British Columbia and the Pacific Northwest through Monday evening, eventually reaching the northern Rockies by the end of the period. Surface high pressure initially centered over the Southeast should develop slowly eastward towards the Atlantic Coast through the day, while lee troughing develops over much of the High Plains. While some low-level moisture return should occur across parts of the southern Plains through the period, thunderstorms appear unlikely across the CONUS owing to a lack of instability overlapping large-scale ascent associated with either upper trough. ..Gleason.. 11/13/2021 Read more LIVE: spc.noaa.gov
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