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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.


Friday, December 2, 2022

SPC Dec 2, 2022 0600 UTC Day 1 Convective Outlook

LIVE MAP (ABOVE) ... SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1122 PM CST Thu Dec 01 2022 Valid 021200Z - 031200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected today through tonight. ...Synopsis... Broad ridging is noted across the central and eastern CONUS in water vapor imagery ahead of a progressive upper wave, currently passing through the Great Basin. The strong flow regime over the central/northern Rockies is yielding robust lee troughing with a surface cyclone evident in surface observations over the western Dakotas. This surface low will shift east through the day into the upper MS River Valley with an attendant cold front sweeping southeastward across the Plains into the lower MS Valley by early Saturday. Modest low-level moisture return within a warm advection regime ahead of the cold front will support adequate buoyancy and lift for elevated thunderstorms from the lower MS Valley to the upper OH Valley late this afternoon and into the overnight hours. Strong effective shear may support transient organization of any stronger updrafts, but weak/shallow CAPE profiles will modulate updraft intensities and limit the overall severe threat. ..Moore/Hart.. 12/02/2022 Read more CHECK UPDATE ZOOM GRAPHIC
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)