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Cardinal SAT


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.

Sunday, December 19, 2021

SPC Dec 19, 2021 Day 4-8 Severe Weather Outlook

Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0357 AM CST Sun Dec 19 2021 Valid 221200Z - 271200Z ...DISCUSSION... ...Day 6/Fri - Day 8/Sun... Northward transport of Gulf moisture is forecast by the end of the week and into next weekend on most global deterministic and ensemble guidance. There is no clear time period of specific concern at this time, but the overall pattern appears favorable for potential severe weather concern at some point. There is reasonable agreement in a large scale pattern favoring a western CONUS upper-level trough and ridging in the east which should keep the warm sector inland and allow the potential mid-level shortwave troughs to eject out of the western CONUS trough and interact with this seasonably warm/moist warm sector. Read more LIVE: spc.noaa.gov