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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.

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O'Hare International Airport KORD (Arlington Heights South)
Chicago Executive Airport KPWK (Arlington Heights North)

Monday, March 17, 2025

SPC Mar 17, 2025 1300 UTC Day 1 Convective Outlook

LIVE MAP (ABOVE) ... SPC 1300Z Day 1 Outlook


Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0716 AM CDT Mon Mar 17 2025

Valid 171300Z - 181200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Severe thunderstorms are not forecast across the contiguous United
States.

...Synopsis...
The upper-air pattern today will feature a large-scale trough
exiting the East Coast as a ridge builds over the central U.S.,
followed by a trough moving into Interior West from the eastern
Pacific. A few weak thunderstorms may develop beneath a cold
mid-level trough along the Carolina coast later this afternoon.
Otherwise, dry offshore flow over the East Coast and Gulf Coast will
lead to tranquil conditions. A few widely spaced, weak
thunderstorms are possible over parts of the West.

..Smith/Thompson.. 03/17/2025


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