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Weather conditions directly above are near Lakefront. Top tabs refer to O'Hare (official).

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.

Wednesday, August 31, 2022

SPC Sep 1, 2022 0100 UTC Day 1 Convective Outlook

SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0757 PM CDT Wed Aug 31 2022 Valid 010100Z - 011200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Organized severe thunderstorms are not forecast across the contiguous United States tonight. ...Synopsis... Early evening water-vapor imagery shows an upper-level trough moving southeast across the central High Plains and another disturbance over the Pacific NW. These upper features are rotating around the periphery of a mid to upper-level ridge centered over the north-central Rockies. Farther east, a vigorous mid-level trough is pivoting through the base of a larger-scale trough centered over Quebec. Isolated to scattered thunderstorms will remain possible in association with the three aforementioned disturbances this evening. Waning instability will likely lead to both a reduction in thunderstorm coverage this evening and weakening storms. ..Smith.. 09/01/2022 Read more CHECK UPDATE ZOOM GRAPHIC
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