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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.

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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