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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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Wednesday, November 12, 2025

SPC Nov 13, 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
0657 PM CST Wed Nov 12 2025

Valid 130100Z - 131200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Minimal chances of isolated thunderstorms remain possible along the
coast of northern California late tonight/early tomorrow. Severe
weather is unlikely.

...Synopsis...
A deep upper low will approach the West Coast tonight and into
Thursday, with gradual cooling aloft as well as midlevel moistening
and lift. Minimal elevated instability of perhaps 100-200 J/kg may
develop, supporting sporadic lightning flashes as precipitation
develops ahead of the wave overnight into coastal northern
California. Despite strong wind fields, surface-based CAPE will
remain near zero, and as such severe storms are not forecast.

..Jewell.. 11/13/2025


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