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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

Wednesday, October 23, 2024

SPC Oct 23, 2024 1630 UTC Day 1 Convective Outlook

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


Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1125 AM CDT Wed Oct 23 2024

Valid 231630Z - 241200Z

...NO THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Thunderstorms remain unlikely through tonight.

...Synopsis and Discussion...
An upper trough will continue moving eastward today from the Great
Lakes to the Northeast and Mid-Atlantic. A related surface cold
front will likewise advance eastward across these areas, with
shallow convection possible along its length. Limited low-level
moisture and poor lapse rates aloft will likely hinder the
development of sufficient instability to support charge separation
and lightning.

Very isolated convection may also develop late this afternoon
through tonight across parts of the Ozarks, along/near the southern
flank of the surface cold. Although some low-level moisture and
instability will be present along/south of the front, large-scale
ascent is forecast to remain minimal across this region.
Accordingly, overall thunderstorm chances still appear less than 10%
through the end of the period.

..Gleason/Thornton.. 10/23/2024


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