LIVE MAP (ABOVE) ... SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1001 AM CST Sat Jan 17 2026
Valid 171630Z - 181200Z
...NO THUNDERSTORM AREAS FORECAST...
...SUMMARY...
Thunderstorms are not forecast across the U.S. today or tonight.
...Discussion...
Deep convective potential will remain virtually nil through tonight
as a longwave trough persists east of the Rockies, with an embedded
shortwave trough amplifying over the Lower Missouri Valley/Ozarks
and Midwest. At the surface, a cold front will continue
southeastward and clear much of the coastal Southeast except the
Florida Peninsula by tonight. Near/ahead of the front, even with
some late-day moisture increase across the Peninsula, poor lapse
rates aloft are expected to limit thunderstorm potential.
..Guyer.. 01/17/2026
Read more CHECK UPDATE ZOOM GRAPHIC
http://dlvr.it/TQPlHv
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 17, 2026
SPC Jan 17, 2026 1630 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)




















