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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.


Wednesday, November 24, 2021

SPC Nov 24, 2021 1630 UTC Day 1 Convective Outlook

SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1031 AM CST Wed Nov 24 2021 Valid 241630Z - 251200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are possible this evening and overnight from parts of the southern Plains into the Ozarks and mid Mississippi Valley. ...East/southeast Texas and southern Plains/Ozarks... Influenced by amplifying belts of split westerlies, a southeastward-moving cold front will approach the region late tonight/early Thanksgiving morning. A relatively moist air mass preceding the front along with increasing forcing for ascent including frontal uplift will contribute to increasing thunderstorm coverage from late-evening onward, initially across eastern Oklahoma and north Texas including the DFW Metroplex vicinity, and subsequently broader parts of the Ozarks/ArkLaTex and east/southeast Texas overnight. It is possible that a few stronger/more organized storms may materialize late tonight across a broad part of east-central/southeast Texas including the I-35/I-45 vicinities. This would be influenced by thunderstorms occurring immediately near the front and perhaps within a zone of pre-frontal confluence where boundary layer inhibition will be relatively weak. While sufficient, albeit modest, buoyancy and moderately strong low-level/deep-layer shear could support some weak/transient supercells and other semi-organized storms capable of small hail/gusty winds, the potential for severe thunderstorms is currently expected to remain low. ..Guyer/Gleason.. 11/24/2021 Read more LIVE:
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CHICAGO UTC-6 during CST (Central Standard Time, e.g., winter)
CHICAGO UTC-5 during CDT (Daylight Savings Time, e.g., summer)