LIVE MAP (ABOVE) ... SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0642 PM CST Mon Nov 03 2025
Valid 040100Z - 041200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
...SUMMARY...
Organized severe storms are not expected tonight.
...Synopsis...
A pronounced mid-level trough and accompanying 110+ kt 500 mb jet
max will continue to rapidly progress over the Northeast through
tonight. Cooler temperatures above the boundary layer are
contributing to near 8 C/km low- to mid-level lapse rates, resulting
in marginal (but adequate) buoyancy to support low-topped
thunderstorm development (per the 00Z BUF observed sounding). This
sounding also shows 50+ kt west-northwesterly flow just above the
boundary layer, and strengthening further with height, resulting in
elongated hodographs. It is not out of the question that some of the
deeper convective cells may produce a few strong wind gusts over the
next couple of hours, before the boundary layer stabilizes.
..Squitieri.. 11/04/2025
Read more CHECK UPDATE ZOOM GRAPHIC
http://dlvr.it/TP3ShX
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)
Monday, November 3, 2025
SPC Nov 4, 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)




















