LIVE MAP (ABOVE) ... SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1127 PM CST Mon Feb 24 2025
Valid 251200Z - 261200Z
...NO THUNDERSTORM AREAS FORECAST...
...SUMMARY...
Thunderstorm probabilities are less than 10 percent across the lower
48 States today.
...Discussion...
Strong upper trough is moving onshore along the Pacific Northwest
Coast early this morning. This feature will deamplify a bit as it
digs southeast across the northern Rockies into the central
Plains/upper MS Valley region by the end of the period. As this
short wave shifts inland, surface pressures will build over the
northern Rockies/Great Basin forcing a cold front into the eastern
Dakotas-central NE-central CO by 26/00z. Large-scale forcing ahead
of this feature will contribute to mid-level moistening within a
steep lapse rate environment. Forecast soundings along/near the
frontal zone suggest weak mid-level buoyancy, likely sufficient for
at least shallow elevated convection. While a few of the strongest
updrafts may penetrate levels necessary for lightning discharge,
current thinking is the probability for thunderstorms is too low to
warrant a risk this period.
..Darrow/Thornton.. 02/25/2025
Read more CHECK UPDATE ZOOM GRAPHIC
http://dlvr.it/TJ9WnZ
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)
Tuesday, February 25, 2025
SPC Feb 25, 2025 0600 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)