LIVE MAP (ABOVE) ... SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0738 PM CDT Fri Aug 29 2025
Valid 300100Z - 301200Z
...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF
THE SOUTHERN AND CENTRAL HIGH PLAINS...
...SUMMARY...
Thunderstorms with potential for hail and isolated severe gusts will
be possible from early to mid evening across parts of the southern
and central High Plains.
...Southern and Central High Plains...
On water vapor imagery, northwesterly mid-level flow is evident over
much of the central U.S. with a ridge over the central High Plains.
At the surface, a moist airmass is located across the southern and
central Plains, where dewpoints are mostly in the 60s F. An axis of
moderate instability is analyzed along the western edge of the moist
airmass from far eastern New Mexico north-northeastward into
west-central Nebraska. Scattered strong thunderstorms are ongoing
near the instability axis, with a few that are severe. The wind
profile on the WSR-88D VWP at Dodge City appears to be
representative along the instability axis, with 0-6 km shear near 45
knots and strong mid-level speed shear. This will continue to
support a marginal severe threat from early to mid evening, mainly
with the storms that are close to the instability axis. Hail and
isolated severe gusts will be the primary threats. The severe threat
will gradually diminish as instability decreases over the next few
hours.
..Broyles.. 08/30/2025
Read more CHECK UPDATE ZOOM GRAPHIC
http://dlvr.it/TMmXv9
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)
Saturday, August 30, 2025
SPC Aug 30, 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)




















