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MOBILE DEVICE? Turn sideways. 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.

Saturday, November 20, 2021

SPC Nov 20, 2021 1730 UTC Day 2 Convective Outlook

SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1124 AM CST Sat Nov 20 2021 Valid 211200Z - 221200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected on Sunday. A large upper trough is forecast to become established over the eastern US on Sunday, while an upper ridge is dominant over the west. The associated cold front will surge southeastward across the MS/OH/TN Valley tomorrow, resulting in scattered showers and a few thunderstorms over the region. Models differ somewhat on the coverage of deep convection - mainly due to weak low-level forcing and poor thermodynamics. It appears that most thunderstorms that can form will be elevated and post-frontal, with little risk of severe storms. Other scattered thunderstorms will be possible over south/central FL, and along the Outer Banks of NC. Again, no severe storms are expected in these areas on Sunday. ..Hart.. 11/20/2021 Read more LIVE: