Day 4-8 Outlook
Day 4-8 Convective Outlook
NWS Storm Prediction Center Norman OK
0339 AM CDT Tue Jun 21 2022
Valid 241200Z - 291200Z
...DISCUSSION...
Guidance continues to be in good agreement regarding the persistence
of the southern CONUS upper ridging through the weekend and into
early next week. A strong shortwave trough is forecast to move
eastward across southern Canada and adjacent portions of the
northern CONUS from D4/Friday through D7/Monday. An attendant
surface low will precede this shortwave, with an associated cold
front sweeping southward across central CONUS on D4/Friday through
D6/Sunday, and southeastward through the eastern CONUS on
D5/Saturday and D6/Sunday. Thunderstorms are possible along this
front as it moves southward/southeastward, but frontal timing is
uncertain and buoyancy will likely be limited by strong mixing ahead
of the front. These issues limit forecast confidence and overall
predictability.
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Archives for SPC Convective outlook are updated daily with a live map a the beginning of the article. Touch or click map to get possible update, and follow link at end of article for referral to NOAA/NWS Storm Prediction Center. Archives for Chicago's hourly weather data were updated 24-48 hours after end of each day prior to Dec. 2020.
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