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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

Sunday, January 15, 2023

SPC Jan 15, 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 1151 PM CST Sat Jan 14 2023 Valid 151200Z - 161200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe weather is not expected today. ...Discussion... A broad zone of cyclonic flow aloft will cover much of the western and central U.S. today, as a short-wave trough moves quickly across the southern Rockies and into the central Plains, and a second -- over the eastern Pacific -- reaches the West Coast overnight. Meanwhile, downstream ridging will shift gradually eastward across the eastern States. At the surface, a central High Plains low will progress northeastward across the central Plains, reaching the Mid Missouri Valley vicinity late. A second low is forecast to move into central California overnight. Showers -- and possibly a few sporadic lightning flashes -- will accompany the progression of the aforementioned/lead short-wave trough across the Four Corners area through the day, and then with some possible/elevated convection developing across the Mid Missouri Valley area late. Meanwhile, showers -- and possibly a few lightning flashes -- will also occur across portions of California, ahead of the eastern Pacific trough. Overall, however, it currently appears that coverage of any lightning will remain below 10% across these areas. Elsewhere, thunderstorms are not expected. ..Goss/Bentley.. 01/15/2023 Read more CHECK UPDATE ZOOM GRAPHIC
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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)