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MOBILE DEVICE? Turn sideways. Weather conditions directly above are near Lakefront. Top tabs refer to O'Hare (official).

Archives for the SPC Convective Outlook are updated daily (approximately) with a live map at the beginning of each article. Follow the link at the end of the article to check for current updates on the NOAA/NWS Storm Prediction Center website. Also, see Archives for Chicago's hourly weather data on CARDINAL NEWS Magazine.


Sunday, November 7, 2021

SPC Nov 7, 2021 0830 UTC Day 3 Severe Thunderstorm Outlook

SPC 0830Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0103 AM CST Sun Nov 07 2021 Valid 091200Z - 101200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected on Tuesday. ...Synopsis... A mid/upper shortwave trough over the Upper Midwest will shift east/northeast to New England on Tuesday. Meanwhile, an upper trough will develop eastward over the western U.S. and deepen as it approaches the Rockies and adjacent High Plains late in the period. Surface high pressure over the Southeast will continue to limit boundary-layer moisture across much of the U.S. east of the Rockies. However, lee surface troughing will develop late in the period in response to the ejecting western trough. This will result in increasing southerly low-level flow, allowing for modest northward transport of Gulf moisture over parts of the southern Plains. However, thunderstorm potential will remain low given poor instability and weak forcing, though some showers are possible in developing warm advection across parts of eastern TX/OK/KS Tuesday night/early Wednesday. ..Leitman.. 11/07/2021 Read more LIVE:
SUNRISE AND SUNSET TIMES IN UTC (if you're not logged in to Google)
CHICAGO UTC-6 during CST (Central Standard Time, e.g., winter)
CHICAGO UTC-5 during CDT (Daylight Savings Time, e.g., summer)