DarkSky Temps | Gusts | WU KORD Data

CLICK for this month's BIG night sky ...




Cardinal SAT


Weather conditions on bar directly above are near Lakefront. Tabs under Moon Phases refer to O'Hare (official).

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.

Tuesday, June 21, 2022

SPC Jun 21, 2022 Day 4-8 Severe Weather Outlook

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. Read more CHECK UPDATE ZOOM GRAPHIC