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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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Tuesday, March 17, 2026

SPC Mar 17, 2026 1630 UTC Day 1 Convective Outlook

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


Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1108 AM CDT Tue Mar 17 2026

Valid 171630Z - 181200Z

...NO THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Thunderstorms are not forecast through tonight across the contiguous
United States.

...Synopsis...
Water-vapor imagery late this morning shows a large-scale upper
trough over the East with a ridge over the West. Drier and stable
conditions have encompassed much of the CONUS in wake of a cold
front that continues to push eastward into the western Atlantic.

..Smith/Lyons.. 03/17/2026


Read more CHECK UPDATE ZOOM GRAPHIC


http://dlvr.it/TRY0sZ
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)