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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)

Tuesday, April 15, 2025

SPC Apr 15, 2025 0600 UTC Day 1 Convective Outlook

LIVE MAP (ABOVE) ... SPC 1200Z Day 1 Outlook


Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1246 AM CDT Tue Apr 15 2025

Valid 151200Z - 161200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Thunderstorms will be possible today in parts of the Northeast, Four
Corners, south-central Rockies and from western Nevada into
California. No severe weather is expected.

...DISCUSSION...
At mid-levels, a ridge will move eastward into the south-central
U.S. today, as a trough moves into the eastern states. Isolated
thunderstorms will be possible in parts of the Northeast as surface
temperatures warm, and as a band of strong large-scale ascent moves
from west to east across the region. In the western states, a
shortwave trough will move northeastward into the Four Corners.
Ahead of the trough, isolated thunderstorm development will take
place today from the Four Corners eastward into the south-central
Rockies. A few storms may also develop from the Sierras into
northern California, ahead a mid-level low that will approach the
coast of California. No severe weather is expected today or tonight
across the continental U.S.

..Broyles/Wendt.. 04/15/2025


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SUNRISE AND SUNSET TIMES IN UTC (if you're not logged in to Google)
CHICAGO UTC-6 during CST (Central Standard Time, e.g., winter)
CHICAGO UTC-5 during CDT (Daylight Savings Time, e.g., summer)