LIVE MAP (ABOVE) ... SPC 1300Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0647 AM CST Thu Nov 27 2025
Valid 271300Z - 281200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
...SUMMARY...
Severe storms are not anticipated today.
...FL...
A large upper trough remains dominant over the eastern U.S. today,
with a cold front sweeping southward across FL. A few thunderstorms
will be possible over central/south FL through the afternoon, but
low-level drying will eventually stabilize the air mass and end the
convective threat after dark.
...PA/NY...
Cold temperatures aloft and warm lake temperatures could be
sufficient for a few lightning strikes in the lee of Lake Erie and
Ontario today. Forecast soundings suggest mid-level lapse rates and
the depth of the unstable layer will be sufficient for occasional
thundersnow through today and this evening.
..Hart/Dean.. 11/27/2025
Read more CHECK UPDATE ZOOM GRAPHIC
http://dlvr.it/TPVYy0
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)
Thursday, November 27, 2025
SPC Nov 27, 2025 1300 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)




















