LIVE MAP (ABOVE) ... SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0647 PM CST Sat Jan 31 2026
Valid 010100Z - 011200Z
...NO THUNDERSTORM AREAS FORECAST...
...SUMMARY...
Thunderstorms are not forecast across the U.S. through tonight.
...Synopsis...
Thunderstorm activity is gradually increasing off the Southeast
Coast as a cyclone intensifies with the approach of an upper wave;
however, this activity will remain well off the coast and will not
impact land. Isolated lightning flashes will also be possible off
the WA coast through early morning, but lightning potential over
land appears limited based on regional 00z RAOBs and forecast
soundings. Elsewhere cold/stable conditions will preclude
thunderstorm potential.
..Moore.. 02/01/2026
Read more CHECK UPDATE ZOOM GRAPHIC
http://dlvr.it/TQh0d6
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)
Saturday, January 31, 2026
SPC Feb 1, 2026 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)




















