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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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Thursday, December 11, 2025

SPC Dec 12, 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
0639 PM CST Thu Dec 11 2025

Valid 120100Z - 121200Z

...NO THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Thunderstorms are not forecast in the U.S. through tonight.

...DISCUSSION...
At mid-levels, a low will move across far northern New England this
evening, as northwest flow remains in place from the Appalachians
northwestward into the northern Rockies. At the surface, a cold
front will move southward across the central and southern Plains
into the mid Mississippi Valley. Over almost the entire nation, a
relatively dry airmass will be in place, making conditions
unfavorable for thunderstorm development through daybreak on Friday.

..Broyles.. 12/12/2025


Read more CHECK UPDATE ZOOM GRAPHIC


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SUNRISE AND SUNSET TIMES IN UTC (if you're not logged in to Google)
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CHICAGO UTC-5 during CDT (Daylight Savings Time, e.g., summer)