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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

Monday, December 11, 2023

SPC Dec 11, 2023 0600 UTC Day 1 Convective Outlook

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


Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1127 PM CST Sun Dec 10 2023

Valid 111200Z - 121200Z

...NO THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Thunderstorms are not expected in the U.S. today and tonight.

...DISCUSSION...
At mid-levels, west-northwesterly flow will be present today across
much of the continental United States, as a trough of low pressure
moves eastward across the eastern U.S. At the surface, a large area
of high pressure will move northeastward across the Southeast. This
will suppress moisture return from the Gulf of Mexico, keeping a
relatively dry and cool airmass in place over much of the nation.
For this reason, thunderstorm development is not expected across the
U.S. today and tonight.

..Broyles/Wendt.. 12/11/2023


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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)