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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)

Saturday, December 27, 2025

SPC Dec 28, 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
0615 PM CST Sat Dec 27 2025

Valid 280100Z - 281200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Severe thunderstorms are not forecast through tonight across the
contiguous United States.

...Discussion...
Low pressure will shift eastward across KS tonight and into western
MO by Sunday morning, ahead of a cold front surging into the central
Plains. Southwesterly low-level winds will maintain warmth ahead of
the cold front, with dewpoints to around 60 F spreading northward
toward I-70 late. Increasing lift associated with the front and
approaching upper trough should instigate scattered thunderstorms
over northeast KS and into northern MO, primarily after 09Z.
Forecast soundings indicate elevated MUCAPE over 500 J/kg will
develop, while deep-layer effective shear remains strong. This may
yield a few stronger cells, possibly producing small hail, though
the most likely scenario is for hail to remain below severe levels.

..Jewell.. 12/28/2025


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