LIVE MAP (ABOVE) ... SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0742 PM CDT Wed Oct 15 2025
Valid 160100Z - 161200Z
...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF
THE SOUTHERN/CENTRAL ROCKIES INTO THE ADJACENT HIGH PLAINS...
...SUMMARY...
Isolated strong to severe thunderstorms are possible tonight across
parts of the southern/central Rockies into the High Plains.
Occasional large hail and severe wind gusts may occur.
...01Z Update...
...Southern/Central Rockies into the central High Plains...
Scattered thunderstorms are ongoing across the region, downstream of
a deep upper low moving across the Great Basin. Despite the loss of
daytime heating and much of the surface-based buoyancy,
thunderstorms will likely persist throughout the evening and tonight
amid cool mid-level temperatures and related steep mid-level lapse
rates. Moderate vertical shear will persist throughout the evening
and overnight as well, with the resulting combination of buoyancy
and shear sufficient for a few supercells and an isolated severe
risk.
Additional information about this area is available in MCD #2148.
..Mosier.. 10/16/2025
Read more CHECK UPDATE ZOOM GRAPHIC
http://dlvr.it/TNj151
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, October 15, 2025
SPC Oct 16, 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)




















