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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.


Sunday, June 26, 2022

SPC Jun 26, 2022 0600 UTC Day 1 Convective Outlook

SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1205 AM CDT Sun Jun 26 2022 Valid 261200Z - 271200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM PARTS OF THE LOWER GREAT LAKES AND UPPER OHIO VALLEY INTO THE TENNESSEE VALLEY... ...SUMMARY... Strong to locally severe thunderstorms are possible from the Lower Great Lakes and Upper Ohio Valley south-southwestward into the Tennessee Valley this afternoon and early evening. Damaging gusts are the primary hazard with the stronger storms. ...Lower Great Lakes/Upper OH Valley/TN Valley... A flattened mid-level ridge will extend across the southern half of the CONUS as a mid-level shortwave trough moves eastward from the Upper Midwest into the central Great Lakes late tonight. In the low levels, a cold front will progress east and southeast across parts of the Mid South through the OH Valley and Lower Great Lakes during the period. A relatively moisture-rich airmass will destabilize during the day ahead of the front with surface dewpoints ranging from the mid-upper 60s over western NY to the lower 70s in parts of the OH Valley/Mid South. Recent model guidance indicates the possibility for storms to redevelop on remnant outflow from late Saturday night/early morning thunderstorm activity from TN/KY during the afternoon. Several other broken bands/clusters are forecast to develop during the afternoon from parts of the OH Valley into the Lower Great Lakes. Relatively weak deep-layer shear will limit overall storm organization, but multicells capable of strong to locally severe gusts (50-60 mph) could yield isolated damaging winds. This activity will likely diminish during the evening coincident with diurnal heat loss. ..Smith/Squitieri.. 06/26/2022 Read more CHECK UPDATE ZOOM GRAPHIC
SUNRISE AND SUNSET TIMES IN UTC (if you're not logged in to Google)
CHICAGO UTC-6 during CST (Central Standard Time, e.g., winter)
CHICAGO UTC-5 during CDT (Daylight Savings Time, e.g., summer)