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Archives for Chicago's hourly weather data updated 24-48 hours after end of each day. MOBILE CHGOWX.COM ...
Weather conditions on bar directly above are near Lakefront. Weather conditions with Moon are O'Hare (official).

Friday, November 19, 2021

SPC Nov 19, 2021 1730 UTC Day 2 Convective Outlook

SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1045 AM CST Fri Nov 19 2021 Valid 201200Z - 211200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not forecast across the contiguous United States on Saturday. ...Synopsis... Much of the CONUS will see zonal flow aloft early Saturday. This upper-level flow pattern will become more amplified through the day as a potent shortwave trough digs southward into the northern Plains and upper Mississippi Valley region by early Sunday morning. High pressure will build into the Great Basin and much of the Plains. A cold front will move southward through the Plains, reaching near the Red River and mid-Mississippi Valley late in the period. A remnant cold frontal boundary will be situated across southern Florida. Diffuse surface heating near the stalled front in southern Florida, along with any potential sea breeze interactions, will likely produce isolated thunderstorm activity during the afternoon. Severe weather, however, is not expected with this activity owing to poor lapse rates. Weak and elevated instability may develop within a warm advection regime in parts of the Ohio River Valley. With only very modest forcing for ascent and very limited buoyancy, potential for thunderstorms remains less than 10%. ..Wendt.. 11/19/2021 Read more LIVE: spc.noaa.gov
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