LIVE MAP (ABOVE) ... SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0751 PM CDT Wed Sep 03 2025
Valid 040100Z - 041200Z
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS IN SOUTH-CENTRAL
KS...
...SUMMARY...
Isolated large hail remains possible across mainly southern Kansas
this evening.
...KS/MO/OK...
Large to very large hail up to 3 inches in diameter was prolific in
several early-evening supercells across east-central KS. This has
recently become confined to the I-135/35 corridors into
south-central KS. These cells should wane over the next couple hours
with rapidly increasing nocturnal MLCIN. Widely scattered elevated
convection may persist along and to the rear of the undercutting,
southward-sagging surface cold front. Adequate speed shear within
the northwesterly mid to upper flow regime may pose a threat for
small to marginally severe hail across southern MO through early
tonight.
..Grams.. 09/04/2025
Read more CHECK UPDATE ZOOM GRAPHIC
http://dlvr.it/TMsTK6
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)
Wednesday, September 3, 2025
SPC Sep 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)




















