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MOBILE DEVICE? Turn sideways. 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.


Thursday, May 11, 2023

SPC May 11, 2023 Day 4-8 Severe Weather Outlook

LIVE MAP (ABOVE) ... Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0342 AM CDT Thu May 11 2023 Valid 141200Z - 191200Z ...DISCUSSION... Global models continue to indicate that ridging will prevail over the western U.S. through the medium-range period. As a result, a gradual expansion of eastern U.S. troughing/cyclonic flow is projected. As this occurs, a Canadian cold front is forecast to sag southward across the eastern half of the country, gradually suppressing higher theta-e low-level air southward through the period. As this front advances, beneath the southern fringe of stronger flow aloft, local/limited severe weather will likely occur, peaking diurnally each day. However, the combination of model differences with respect to the timing/location of the sagging baroclinic zone, and this overall pattern evolution not particularly conducive for widespread severe weather, precludes any inclusion of risk areas through the end of next week. Read more CHECK UPDATE ZOOM GRAPHIC
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