Windy.com Temps | Gusts | WU KORD KPWK

CLICK for this month's BIG night sky ...

RADAR FULL MAP SCREEN

NEXRAD

STORMTRACK

Cardinal SAT

CHGOWX.COM



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)

Tuesday, February 3, 2026

SPC Feb 3, 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
1142 PM CST Mon Feb 02 2026

Valid 031200Z - 041200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Severe thunderstorms are not expected today through tonight.

...Synopsis...
05 UTC surface observations depict modest moisture return ongoing
along the TX Gulf Coast into eastern TX as a surface low gradually
intensifies across northwest TX. Further north, a cold front
continues to advance southward into the southern Plains. A
combination of isentropic ascent preceding the front and more
focused lift along the front will support isolated to scattered
thunderstorm development by early afternoon from eastern TX into the
lower MS River Valley and possibly into parts of the TN Valley as
the front pushes southeast towards the Gulf.

Although dewpoints will likely increase to the upper 50s and low 60s
by late afternoon, warm mid-level temperatures observed in 00 UTC
soundings will yield modest buoyancy profiles characterized by
lifted indices between -1 to -3 C. Consequently, this will limit
updraft intensities and the overall potential for severe convection.
Latest CAM guidance, including the typically aggressive REFS,
support this idea and depict very weak signals for strong updrafts.

..Moore/Wendt.. 02/03/2026


Read more CHECK UPDATE ZOOM GRAPHIC


http://dlvr.it/TQkChl

Monday, February 2, 2026

SPC Feb 3, 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
0640 PM CST Mon Feb 02 2026

Valid 030100Z - 031200Z

...NO THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Thunderstorms are not expected across the U.S. through tonight.

...Synopsis...
Mid-evening satellite imagery depicts a weak mid-level impulse
moving across TX with modest moisture return ongoing into central
TX. A cold front is noted in surface observations advancing
south/southeastward across the Plains. This feature should impinge
on the returning moisture across the Texarkana region between 9-12
UTC, and will promote a gradual increase in shallow convective
showers. However, warm mid-level temperatures will prevent deep
convection/thunderstorm development prior to 12 UTC. Elsewhere, cool
and dry conditions will preclude thunderstorms.

..Moore.. 02/03/2026


Read more CHECK UPDATE ZOOM GRAPHIC


http://dlvr.it/TQjzwJ

SPC Feb 2, 2026 2000 UTC Day 1 Convective Outlook

LIVE MAP (ABOVE) ... SPC 2000Z Day 1 Outlook


Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0130 PM CST Mon Feb 02 2026

Valid 022000Z - 031200Z

...NO THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Thunderstorms are not expected across the U.S. through tonight.

...20Z Update...
No changes have been made to the ongoing forecast.

..Gleason.. 02/02/2026

.PREV DISCUSSION... /ISSUED 0930 AM CST Mon Feb 02 2026/

...Synopsis and Discussion...
Upper ridging will build over the West Coast states today, while
multiple mid-level shortwave troughs move east-southeastward across
the central/eastern CONUS. Even though modest low-level moisture
will return late tonight across parts of south/east TX towards the
ArkLaTex, generally stable and/or dry conditions will preclude
thunderstorms across the CONUS through the end of the period.


Read more CHECK UPDATE ZOOM GRAPHIC


http://dlvr.it/TQjmn8

SPC Feb 2, 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
0626 AM CST Mon Feb 02 2026

Valid 021300Z - 031200Z

...NO THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Thunderstorms are not expected across the U.S. today through
tonight.

Dry and stable conditions across the CONUS will preclude
thunderstorm activity today and tonight.

..Hart.. 02/02/2026


Read more CHECK UPDATE ZOOM GRAPHIC


http://dlvr.it/TQjQLg
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)