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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)
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Thursday, October 1, 2026

SPC Oct 2, 2026 0100 UTC Day 1 Convective Outlook

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


Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0739 PM CDT Thu Oct 01 2026

Valid 020100Z - 021200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Severe thunderstorms are not expected the remainder tonight into
early Friday.

...01z Update...

Severe probabilities have been removed from northwest OK/southwest
KS. Instability has largely diminished with loss of daytime heating
and in the wake of a surface cold front. Ahead of the front,
instability will continue to diminish, along with deep-layer flow,
while nocturnal cooling promotes increasing low-level inhibition.
This should largely preclude severe thunderstorm potential the
remainder of the forecast period.

..Leitman.. 10/02/2026


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)