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
Read more CHECK UPDATE ZOOM GRAPHIC
http://dlvr.it/TPDpvy
Windy.com Temps | Gusts | WU KORD KPWK |
CLICK for this month's BIG night sky ... | RADAR FULL MAP SCREEN |
|---|
MOBILE DEVICE? Turn sideways. Weather conditions directly above are near Lakefront. Top tabs refer to O'Hare (official).
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.
CONVECTIVE | TORNADO | WIND | HAIL
O'Hare International Airport KORD
(Arlington Heights South)
Chicago Executive Airport KPWK
(Arlington Heights North)
Wednesday, November 12, 2025
SPC Nov 13, 2025 0100 UTC Day 1 Convective Outlook
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)
CHICAGO UTC-6 during CST (Central Standard Time, e.g., winter)
CHICAGO UTC-5 during CDT (Daylight Savings Time, e.g., summer)




















