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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

Friday, December 15, 2023

SPC Dec 15, 2023 1300 UTC Day 1 Convective Outlook

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


Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0647 AM CST Fri Dec 15 2023

Valid 151300Z - 161200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Severe thunderstorms are not forecast across the United States
through tonight.

...Synopsis...
A midlevel low over northwest OK this morning will eject slowly
east-northeastward toward MO by tonight, as an upstream wave digs
south-southeastward from southern AB/SK toward SD/NE. A band of
rain with embedded convection persists from central TX into central
OK, in association with the midlevel low and a reinforcing frontal
surge across OK/TX. The band of ascent/rain will spread eastward
and southeastward through tonight, with weak buoyancy aloft
supporting a continued threat for isolated lightning flashes through
tonight (primarily from north TX to southeast TX). Otherwise, some
convection and isolated lightning flashes may also occur across
south FL/Keys in the persistent easterly flow regime along a
residual front.

..Thompson/Broyles.. 12/15/2023


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