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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, January 6, 2022

SPC Jan 6, 2022 0600 UTC Day 1 Convective Outlook

SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1140 PM CST Wed Jan 05 2022 Valid 061200Z - 071200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Aside from a strike or two over the central Gulf Coastal areas, thunderstorms are not expected today. ...Discussion... As an upper trough shifts out of the central U.S. and across the eastern half of the country today, ridging will prevail over the West. Overnight, as the eastern trough continues to advance, a second trough will approach the Pacific Northwest, reaching the coast by Friday morning. At the surface, a weak frontal wave is forecast to shift east-northeastward across the Southeast, along a remnant baroclinic zone across this area. As the low shifts offshore and deepens tonight, the trailing cold front will advance eastward across the Gulf Stream, and southward into northern Florida and the northern Gulf of Mexico. As mentioned in prior forecasts, scattered showers are forecast to evolve ahead of the cold front across the central Gulf Coast states/Southeast, and should eventually organize into low-topped frontal convective line. However, models continue to depict warm mid-level temperatures, with what meager CAPE is expected to evolve likely to remain shallow, beneath the warm layer. With convective growth thus unlikely to ascend to layers sufficiently cold for lightning generation, few -- if any -- flashes are expected. Still, locally gusty/convectively enhanced winds may occur with passage of the line of showers. Elsewhere, thunderstorms are not expected. ..Goss/Moore.. 01/06/2022 Read more LIVE: spc.noaa.gov
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