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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.

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

Saturday, December 6, 2025

SPC Dec 6, 2025 0600 UTC Day 1 Convective Outlook

LIVE MAP (ABOVE) ... SPC 1200Z Day 1 Outlook


Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1137 PM CST Fri Dec 05 2025

Valid 061200Z - 071200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Severe thunderstorms are not expected today.

...Discussion...

Mean long-wave trough is expected to remain centered across the
eastern Plains/MS Valley through the day1 period. Negligible height
changes are expected across lower latitudes which will result in a
synoptic front oscillating across the northern/central FL Peninsula.
This boundary will serve as the primary focus for the potential for
isolated thunderstorm development. Latest model guidance is not
particularly aggressive in air mass destabilization across the
Peninsula, but showers and a few thunderstorms should develop
along/north of the boundary as deep westerly flow provides weak lift
atop the frontal zone. While deep-layer shear is strong, weak
buoyancy and poor lapse rates do not support robust or organized
severe updrafts.

..Darrow/Thornton.. 12/06/2025


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