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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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Sunday, January 18, 2026

SPC Jan 18, 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
0655 PM CST Sat Jan 17 2026

Valid 180100Z - 181200Z

...NO THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Thunderstorms are not forecast across the U.S. today or tonight.

...DISCUSSION...
A cyclonic flow pattern will remain in place over the central and
eastern U.S. this evening into tonight, as a shortwave mid-level
trough moves across the southern Plains. At the surface, a large
high pressure area will remain in place over the Great Plains and
Mississippi Valley. The pattern, along with a dry and cold airmass,
will limit thunderstorm potential across the nation through early
morning on Sunday.

..Broyles.. 01/18/2026


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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)