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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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Friday, October 31, 2025

SPC Oct 31, 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
1226 AM CDT Fri Oct 31 2025

Valid 311200Z - 011200Z

...NO THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Thunderstorm potential is low today.

...Discussion...

Large-scale pattern does not appear particularly favorable for deep
convection capable of generating lightning today. Upper troughing
will establish itself east of the Rockies and this will ensure
offshore flow along the Atlantic/Gulf Coasts while a continental
environment dominates inland. Cool, stable conditions are not
conducive for lightning, especially 10% coverage.

..Darrow/Squitieri.. 10/31/2025


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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)