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Archives for the SPC Convective Outlook are updated daily (approximately) with a live map at the beginning of each article. Follow the link at the end of the article to check for current updates on the NOAA/NWS Storm Prediction Center website. Also, see Archives for Chicago's hourly weather data on CARDINAL NEWS Magazine.

Friday, November 18, 2022

SPC Nov 18, 2022 0600 UTC Day 1 Convective Outlook

LIVE MAP (ABOVE) ... SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1138 PM CST Thu Nov 17 2022 Valid 181200Z - 191200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Sporadic lightning strikes will be possible today across the lower Great Lakes, in associated with lake-effect snowbands. ...DISCUSSION... A broad cyclonic flow pattern at mid-levels will be in place across much of the continental United States today, as an upper-level trough moves southeastward across the western U.S.. Further east, an upper-level trough will move eastward across the eastern Great Lakes and central Appalachians. At the surface, a large dome of high pressure will settle into the Great Plains. High pressure will also affect the Southeast. This dry and cool airmass will keep moisture return confined to the south Texas coast, where isolated thunderstorms could develop during the overnight period. A few lightning strikes will also be possible in the lower Great Lakes, in association with lake-effect snowbands. No severe threat is forecast across the continental United States today and tonight. ..Broyles/Squitieri.. 11/18/2022 Read more CHECK UPDATE ZOOM GRAPHIC
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