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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)

Thursday, January 30, 2025

SPC Jan 30, 2025 1630 UTC Day 1 Convective Outlook

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


Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1008 AM CST Thu Jan 30 2025

Valid 301630Z - 311200Z

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND
EVENING ACROSS PARTS OF LOUISIANA AND SOUTHWEST MISSISSIPPI....

...SUMMARY...
Strong/isolated severe storms will be possible today into tonight
from eastern portions of Texas eastward across the Lower Mississippi
Valley.

...LA/MS...
Morning water vapor imagery shows a deep upper low over southeast
CO, with a band of strong southwesterly flow aloft extending across
central TX. A cold front is sweeping eastward across east TX into a
moist but only marginally unstable air mass across the ArkLaTex
region. The result is likely to be a continued risk of showers and
thunderstorms along/behind the front.

Forecast soundings throughout the pre-frontal region show strong
low-level and deep-layer shear, providing a favorable conditional
environment for organized convection and updraft rotation. The
primary concern is the weak forcing in the warm sector, and the weak
thermodynamic profiles. These factors suggest storms along the
immediate front may become strong/severe, but it is uncertain how
long the storms can remain surface-based before being undercut by
the front. Nevertheless, the strongest cells could produce damaging
wind gusts or a tornado or two through the afternoon and evening.

..Hart/Gleason.. 01/30/2025


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