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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.

ARLINGTON HEIGHTS WEATHER
O'Hare International Airport KORD (Arlington Heights South)
Chicago Executive Airport KPWK (Arlington Heights North)

Sunday, January 11, 2026

SPC Jan 11, 2026 1300 UTC Day 1 Convective Outlook

LIVE MAP (ABOVE) ... SPC 1300Z Day 1 Outlook


Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0631 AM CST Sun Jan 11 2026

Valid 111300Z - 121200Z

...NO THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Thunderstorms are not expected today.

...NY/PA/WV...
A deep, cold upper trough will be present today over the eastern US,
with the trough axis and associated cold pool aloft moving across
the upper OH Valley. Forecast soundings suggest that despite cold
mid-level temperatures below -30C, weak/shallow CAPE profiles will
preclude charge separation except on a very isolated basis.

Elsewhere no thunderstorms are forecast today.

..Hart/Kerr.. 01/11/2026


Read more CHECK UPDATE ZOOM GRAPHIC


http://dlvr.it/TQHDfx

SPC Jan 11, 2026 0600 UTC Day 1 Convective Outlook

LIVE MAP (ABOVE) ... SPC 1200Z Day 1 Outlook


Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1109 PM CST Sat Jan 10 2026

Valid 111200Z - 121200Z

...NO THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Thunderstorms are not expected on Sunday.

...Synopsis...

A cold front will shift south across the FL Peninsula, and well into
the Gulf today. In the wake of the cold front, surface high pressure
will envelop much of the CONUS. A dearth of boundary-layer moisture
and cool/stable conditions will preclude thunderstorm activity.

..Leitman.. 01/11/2026


Read more CHECK UPDATE ZOOM GRAPHIC


http://dlvr.it/TQH2Hh

Saturday, January 10, 2026

SPC Jan 11, 2026 0100 UTC Day 1 Convective Outlook

LIVE MAP (ABOVE) ... SPC 0100Z Day 1 Outlook


Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0644 PM CST Sat Jan 10 2026

Valid 110100Z - 111200Z

...NO THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Severe storms are not expected through Sunday morning.

...01z Update...

A surface cold front will continue to scoot eastward across the
Mid-Atlantic and Southeast through early Sunday. Thunderstorm
potential has largely waned ahead of the front as upper forcing
weakens and any modest instability remains offshore over the eastern
Gulf and/or over the Gulf Stream. As a result, the general
thunderstorm area has been removed across the Southeast.

..Leitman.. 01/11/2026


Read more CHECK UPDATE ZOOM GRAPHIC


http://dlvr.it/TQGvkx

SPC Jan 10, 2026 1630 UTC Day 1 Convective Outlook

LIVE MAP (ABOVE) ... SPC 1630Z Day 1 Outlook


Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1022 AM CST Sat Jan 10 2026

Valid 101630Z - 111200Z

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR EAST-CENTRAL
ALABAMA AND WEST-CENTRAL GEORGIA...

...SUMMARY...
An isolated risk for damaging winds and perhaps a brief tornado will
continue through the early afternoon from the central Gulf Coast
northeastward into the southern Appalachians.

...MS/AL/GA/FL Panhandle...
Radar mosaic late this morning shows an extensive convective band
from the SC/GA/NC border southwestward to the MS coast. The airmass
immediately ahead of the squall line is seasonably moist with
dewpoints ranging from near 70 deg F along the coast to the lower
60s in northeast GA. Relatively weak lapse rates and meager
buoyancy were sampled by the 12 UTC FFC (Atlanta, GA) raob.
However, the more north-south segments of the squall line are more
favorably oriented to strong southwesterly mean flow fields across
the region. As a result, the risk for damaging gusts and perhaps a
brief tornado or two will continue through the early afternoon near
the AL-GA border. A lower perceived risk for severe likely exists
farther northeast into northern GA/Upstate SC where buoyancy is
weaker, and farther southwest into southern AL and the Gulf Coast
where the convective line is further displaced from stronger
forcing/low-level mass response.

A frontal segment pushing east across the OH Valley and Mid South
will consolidate with a front segment along the northwest Gulf
Coast, and sweep east across the much of the Southeast through
tonight and reach the FL Big Bend and Carolina coast by daybreak.

..Smith/Halbert.. 01/10/2026


Read more CHECK UPDATE ZOOM GRAPHIC


http://dlvr.it/TQGlKM
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)