Temps | Gusts | WU KORD KPWK

CLICK for this month's BIG night sky ...




Cardinal SAT


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.


Wednesday, January 5, 2022

SPC Jan 5, 2022 Day 4-8 Severe Weather Outlook

Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0332 AM CST Wed Jan 05 2022 Valid 081200Z - 131200Z ...DISCUSSION... A positive-tilt upper trough is forecast to move across the Rockies on Saturday/D4, emerging into the Plains on Sunday/D5. This will occur as a strong upper trough amplifies across the northern Plains and Great Lakes. The initial trough will quickly become absorbed by the larger amplification, which will continue through Monday/D6 before departing the northeastern states after Tuesday/D7. During the Saturday/D4 to Sunday/D5 period, southerly winds will result in increasing moisture from eastern TX across the lower MS Valley, and widespread rain and thunderstorms are forecast. Mid to upper 60s F dewpoints will contribute to 500-1000 J/kg MUCAPE ahead of a developing cold front. This front will especially surge on Sunday/D5, and will likely undercut convection as it develops. While strengthening mid/upper flow will lead to favorable shear, predictability for anything more than low-end severe is low given the aforementioned weak instability and surging cold front. By Monday/D6, the front will clear the southeastern states, resulting in drying conditions. 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)