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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, February 1, 2026

SPC Feb 1, 2026 2000 UTC Day 1 Convective Outlook

LIVE MAP (ABOVE) ... SPC 2000Z Day 1 Outlook


Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0157 PM CST Sun Feb 01 2026

Valid 012000Z - 021200Z

...NO THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Thunderstorm potential appears low today and tonight.

...Synopsis...
The previous forecast (see below) remains on track.

..Squitieri.. 02/01/2026

.PREV DISCUSSION... /ISSUED 1000 AM CST Sun Feb 01 2026/

...Synopsis and Discussion...
Cold/stable conditions behind a front will limit thunderstorm
potential across the central/eastern CONUS today. A mid-level
shortwave trough will advance eastward across the Pacific Northwest
into the northern Rockies through tonight. Cool temperatures aloft
associated with this feature may support very weak instability and
perhaps an occasional lightning flash. However, it still appears
that overall thunderstorm coverage will remain less than 10%.


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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)