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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)

Wednesday, April 9, 2025

SPC Apr 9, 2025 1630 UTC Day 1 Convective Outlook

LIVE MAP (ABOVE) ... SPC 1630Z Day 1 Outlook


Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1115 AM CDT Wed Apr 09 2025

Valid 091630Z - 101200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Isolated thunderstorms may occur today and tonight from parts of the
northern/central Plains into the Midwest and Ohio Valley. Severe
thunderstorms are not expected.

...Synopsis and Discussion...
Multiple low-amplitude, mid-level shortwave troughs are forecast to
develop east-southeastward today and tonight from parts of the
northern/central Plains into the Midwest and OH Valley. Rather
meager/shallow low-level moisture will tend to limit thunderstorm
coverage and intensity across these regions. Even so, sufficient
large-scale ascent and weak MUCAPE may still support isolated
convection capable of producing lightning through the period.
Occasional strong/gusty winds may occur with high-based
thunderstorms across parts of SD/NE this afternoon, but organized
severe thunderstorms are not forecast.

..Gleason/Lyons.. 04/09/2025


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