SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1023 AM CST Mon Nov 22 2021 Valid 221630Z - 231200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected across the contiguous United States today. ...Synopsis/Discussion... A progressive yet amplified longwave pattern will prevail over the CONUS through tonight. Large-scale trough amplification will occur along/east of the Appalachians, while an additional shortwave trough amplifies as it approaches the coastal Pacific Northwest tonight. Some thunderstorms will remain a possibility across southern Florida and offshore waters today within the pre-frontal moist air mass. A few thunderstorms may also occur late tonight along coastal Washington/northwest Oregon as lapse rates steepen/minimal buoyancy develops in conjunction with the aforementioned shortwave trough. ..Guyer/Weinman.. 11/22/2021 Read more LIVE: spc.noaa.gov
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