LIVE MAP (ABOVE) ... SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1219 AM CDT Sun Sep 28 2025
Valid 281200Z - 291200Z
...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS
OF NEW MEXICO AND FAR WEST TEXAS...
...SUMMARY...
A few strong, to locally severe thunderstorms are expected across
the southern half of New Mexico and far West Texas. Win gusts and
hail are the primary concern.
...NM/Far West TX...
Lower CO River Valley upper low is forecast to gradually weaken and
lift northeast toward the Four Corners region by the end of the
period. This evolution will encourage a bit stronger midlevel flow
to translate across northern Mexico into southern NM later today,
coincident with modest-strong boundary layer
heating/destabilization. While midlevel height falls will prove
negligible to weakly rising, the approaching upper trough is
expected to aid a corridor of scattered robust convection across
northern Mexico-far west TX-southern/central NM. Forecast soundings
suggest convective temperatures will be breached fairly early,
possibly by 20z. At that time profiles exhibit modest-strong 0-6km
bulk shear, with some veering with height. Scattered thunderstorms
should easily develop by mid afternoon and the large-scale
environment favors some updraft organization. Primary concerns will
be gusty winds and hail. Nocturnal cooling, along with convective
overturning, should result in weaker updrafts by mid evening.
..Darrow/Moore.. 09/28/2025
Read more CHECK UPDATE ZOOM GRAPHIC
http://dlvr.it/TNL32X
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)
Sunday, September 28, 2025
SPC Sep 28, 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)




















