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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.

Tuesday, August 9, 2022

SPC Aug 9, 2022 0730 UTC Day 3 Severe Thunderstorm Outlook

SPC 0730Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0211 AM CDT Tue Aug 09 2022 Valid 111200Z - 121200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... The threat for severe thunderstorms is expected to be relatively low on Thursday. ...Synopsis... Minimal change to the large-scale pattern is expected across the CONUS on Thursday. The upper trough across the East is forecast to amplify through the period, while little movement is expected with the ridge over the Intermountain West and High Plains and the upper low off of the Pacific Northwest coast. At the surface, a cold front will continue to push southward into parts of the Carolinas and Southeast, while another front becomes nearly stationary across the northern Plains and Midwest. The severe threat for Thursday appears relatively limited at this time. The most favorable overlap of instability and deep-layer flow/shear is expected near the front across the northern Plains, but stronger large-scale ascent is expected to remain on the cool side of the boundary, potentially limiting the potential for surface-based storms through the period. A few stronger storms will be possible in association with the front moving through the Carolinas and Southeast, but details regarding the timing of the front and location of the greatest threat are too uncertain to include wind probabilities at this forecast range. ..Dean.. 08/09/2022 Read more CHECK UPDATE ZOOM GRAPHIC
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