LIVE MAP (ABOVE) ... SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0642 PM CST Thu Jan 22 2026
Valid 230100Z - 231200Z
...NO THUNDERSTORM AREAS FORECAST...
...SUMMARY...
Thunderstorms are not expected across the country through tonight.
...Synopsis...
Lightning activity off the southeastern FL coast has diminished over
the past several hours amid weakening broad-scale ascent and modest
mid-level height rises. While sporadic weak convection remains
possible off the coast, the overall thunderstorm potential appears
sufficiently limited to warrant removal of thunder probabilities.
Elsewhere across the country, 00z RAOBs sampled mostly dry and
stable conditions that will largely mitigate thunderstorm potential.
A few recent model runs hint that 50-100 MUCAPE may develop across
southern AZ/NM as broad-scale lift increases ahead of the upper wave
currently over southern CA. Forecast equilibrium temperatures near
-20 C could support sporadic lightning flashes during the 08-12 UTC
time frame. However, consensus among guidance is very limited on
this potential, and the recent 00z TUS sounding suggests substantial
moistening within the lowest 300 mb is required before thunderstorms
can be supported.
..Moore.. 01/23/2026
Read more CHECK UPDATE ZOOM GRAPHIC
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Windy.com Temps | Gusts | WU KORD KPWK |
CLICK for this month's BIG night sky ... | RADAR FULL MAP SCREEN |
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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)
Thursday, January 22, 2026
SPC Jan 23, 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)




















