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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

Wednesday, August 10, 2022

SPC Aug 10, 2022 0730 UTC Day 3 Severe Thunderstorm Outlook

SPC 0730Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0200 AM CDT Wed Aug 10 2022 Valid 121200Z - 131200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... The threat for severe thunderstorms is expected to be relatively low on Friday. ...Synopsis... Only minor changes to the large-scale pattern are expected on Friday, with a seasonably deep mid/upper-level trough persisting over the eastern CONUS, while an upper cyclone moves slowly northward off of the Pacific Northwest coast. A cold front will continue moving across parts of the Southeast. Another boundary will take on a more north-south orientation from the Ozark Plateau into the northern Plains and upper Midwest, with the northern portion moving northward as a warm front, while the southern portion acts as more of a backdoor cold front as it pushes westward. At this time, the threat for organized severe thunderstorms appears relatively low on Friday. A few strong storms will be possible across the Southeast Friday afternoon, though the cold front may tend to outpace the stronger deep-layer flow/shear spreading in from the northwest. Scattered thunderstorms will also again be possible across parts of the interior West, though the stronger deep-layer flow/shear is expected to be displaced from the greater moisture/instability and storm coverage. ..Dean.. 08/10/2022 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)