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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, February 24, 2022

SPC Feb 24, 2022 2000 UTC Day 1 Convective Outlook

SPC 2000Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0152 PM CST Thu Feb 24 2022 Valid 242000Z - 251200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are possible this afternoon and tonight from Louisiana northward into the Mid South and Ohio Valley regions. ...Discussion... No appreciable change was made to the previous convective outlook. ..Smith.. 02/24/2022 .PREV DISCUSSION... /ISSUED 1016 AM CST Thu Feb 24 2022/ ...MO/AR into the OH Valley... A region of showers and thunderstorms currently over MO/AR is associated with enhanced low-level warm advection atop a cold surface air mass. Sufficient elevated CAPE suggests that isolated lightning flashes may persist through the afternoon and evening as the activity develops eastward across the OH Valley. ...LA/MS... A relatively strong surface front currently extends from central LA northeastward into southern MS. This boundary will lift northward today, with a moist/unstable air mass spreading northward behind the warm front. Despite MLCAPE values of 500-800 J/kg, forecast soundings show a capping inversion around 700mb that will likely inhibit vigorous convection this afternoon along the front. If an isolated storm or two can form, a sufficient CAPE/shear combination is present for a risk of gusty winds or small hail. Read more CHECK UPDATE ZOOM GRAPHIC
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