LIVE MAP (ABOVE) ... SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0657 PM CST Wed Nov 04 2026
Valid 050100Z - 051200Z
...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS
OF THE SOUTHEAST...
...SUMMARY...
Thunderstorms with sporadic wind gusts and a brief tornado will
remain possible across parts of the Southeast.
...Synopsis...
Evening water vapor imagery showed an upper low over MN/WI with a
second upper low, moving from the Four Corners into the central
Rockies. A pronounced shortwave trough over MS and AL is forecast to
move eastward ahead of a belt of enhanced mid-level flow that
extends over the lower third of the CONUS between the two more
dominant upper-level cyclones. An associated surface low over the
Great Lakes will move eastward as a trailing cold front moves across
the Midwest and Southeast.
...Southeast...
Evening radar and satellite observations show a band of
predominately disorganized convection has evolved along and ahead of
the cold front from eastern TN, to south-central AL, while a more
isolated convective cluster was ongoing over eastern GA. The
environment ahead of the front remains moist, with mid 60s to low
70s F surface dewpoints across much of the Southeast. However, lapse
rates remain quite poor generally around 6 C/km (00z BMX sounding)
which, along with the loss of diurnal heating is limiting buoyancy.
Still, area RAP profiles show around 500 J/kg of MLCAPE persisting
into the evening across eastern AL and into GA, which should be
sufficient for occasional stronger updrafts.
The enhanced flow aloft is also supporting marginal deep-layer shear
(30-35 kt) for storm organization with clusters and transient
supercells having been observed. Despite deep and low-level shear
forecast to weaken overnight, modestly curved hodographs may support
occasional rotation, with a low-end risk for a brief tornado or
damaging gust this evening. Eventually storms should weaken as the
environment becomes increasingly stable over eastern GA and the
western Carolinas overnight.
..Lyons.. 11/05/2026
Read more CHECK UPDATE ZOOM GRAPHIC
http://dlvr.it/TWByn4
Windy.com Temps | Gusts | WU KORD KPWK |
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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)
Wednesday, November 4, 2026
SPC Nov 5, 2026 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)




















