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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)

Tuesday, December 2, 2025

SPC Dec 3, 2025 0100 UTC Day 1 Convective Outlook

LIVE MAP (ABOVE) ... SPC 0100Z Day 1 Outlook


Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0651 PM CST Tue Dec 02 2025

Valid 030100Z - 031200Z

...NO THUNDERSTORM AREAS FORECAST...

...SUMMARY...
No thunderstorms are forecast across the U.S. this evening and
tonight.

...DISCUSSION...
A shortwave mid-level trough will move into the western Atlantic
tonight, as flow becomes zonal across much of the Mississippi, Ohio
and Tennessee Valleys. At the surface, a large area of high pressure
will remain from the Gulf Coast states into the southern and central
Appalachians. This dry and cool airmass will be unfavorable for
thunderstorms. Elsewhere across the continental U.S., thunderstorm
activity is not expected.

..Broyles.. 12/03/2025


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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)