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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.

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

Friday, March 13, 2026

SPC Mar 13, 2026 1300 UTC Day 1 Convective Outlook

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


Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0712 AM CDT Fri Mar 13 2026

Valid 131300Z - 141200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Organized severe thunderstorms are not expected.

...NY/PA...
a fast-moving and well-defined shortwave trough is indicated over
WI. This feature will track across the Great Lakes and affect parts
of PA/NY later this afternoon and evening. Strong low-level warm
advection and lift will aid in the development of showers and
isolated thunderstorms over southern Ontario and parts of
central/western NY/PA. While lightning activity will likely be
sparse, strong low-level winds and steepening mid-level lapse rates
could result in gusty showers and thunderstorms with isolated severe
winds possible.

...FL...
A few afternoon thunderstorms are expected today over central/south
FL, along and ahead of a surface cold front. Weak winds aloft
should preclude severe storms.

..Hart/Weinman.. 03/13/2026


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