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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.

Saturday, January 22, 2022

SPC Jan 22, 2022 1630 UTC Day 1 Convective Outlook

SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1026 AM CST Sat Jan 22 2022 Valid 221630Z - 231200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated lightning flashes may occur late today into tonight across parts of Arizona. ...Synopsis... A surface cold front will continue to move southeastward across/off the southeast FL coast and Keys during the day, with the primary threat for thunderstorms focused along the wind shift across the FL Straits and just off the southeast FL coast. Farther west, a closed midlevel low will continue to drift southeastward over southwest AZ/Sonora through Sunday morning. Relatively cool midlevel temperatures and sufficiently steep midlevel lapse rates, along with a gradual increase in low-midlevel moisture, could result in just enough buoyancy for isolated lightning flashes by late today into tonight within the arc of what is now shallow/midlevel convection from the Rim into south central AZ. ..Thompson.. 01/22/2022 Read more CHECK UPDATE ZOOM GRAPHIC
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