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Weather conditions on bar directly above are near Lakefront. Tabs under Moon Phases refer to O'Hare (official).

Archives for SPC Convective outlook are updated daily with a live map a the beginning of the article. Touch or click map to get possible update, and follow link at end of article for referral to NOAA/NWS Storm Prediction Center. Archives for Chicago's hourly weather data were updated 24-48 hours after end of each day prior to Dec. 2020.

Thursday, November 25, 2021

SPC Nov 25, 2021 2000 UTC Day 1 Convective Outlook

SPC 2000Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0129 PM CST Thu Nov 25 2021 Valid 252000Z - 261200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... While severe storms are not expected, thunderstorms remain possible this Thanksgiving Day across southern/southeast Texas and southwest Louisiana. ...20z Update... Adjustments to the thunder area were made to account for the continued southward motion of the cold front, otherwise the previous forecast reasoning remains on track. ..Bunting.. 11/25/2021 .PREV DISCUSSION... /ISSUED 1009 AM CST Thu Nov 25 2021/ ...Synopsis/Discussion... A progressive semi-amplified belt of westerlies will prevail over the CONUS, while a closed southern-stream low becomes increasingly cut-off over Baja. As a cold front continues southeastward, thunderstorm potential across parts of Texas into Louisiana will further diminish and be increasingly confined to near-coastal/Deep South Texas through the afternoon, and focused offshore over the western Gulf of Mexico by tonight. Factors such as weak lapse rates and weak low/mid-level winds within the warm sector and near the front suggest that severe storms are unlikely today. Read more LIVE: spc.noaa.gov