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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.

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O'Hare International Airport KORD (Arlington Heights South)
Chicago Executive Airport KPWK (Arlington Heights North)

Monday, January 5, 2026

SPC Jan 5, 2026 2000 UTC Day 1 Convective Outlook

LIVE MAP (ABOVE) ... SPC 2000Z Day 1 Outlook


Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0153 PM CST Mon Jan 05 2026

Valid 052000Z - 061200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Severe thunderstorms are not expected through tonight.

...20Z Update...
There are no changes made to the outlook for this issuance.

..Broyles.. 01/05/2026

.PREV DISCUSSION... /ISSUED 1024 AM CST Mon Jan 05 2026/

...Discussion...
A progressive low-amplitude flow regime will persist over the CONUS,
with split flow along the West Coast including a southern-stream
upper low off the coast of California. Semi-steep mid-level lapse
rates exist in proximity to the upper low near the north-central
California coast, with related isolated thunderstorm potential
mainly early today. However, this thermodynamically conducive
environment will trend less favorable over time. Additionally, a few
lightning flashes may occur today across the central Rockies in
association with an eastward-moving shortwave trough.


Read more CHECK UPDATE ZOOM GRAPHIC


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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)