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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.

Thursday, August 5, 2021

SPC Aug 6, 2021 0100 UTC Day 1 Convective Outlook

SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0726 PM CDT Thu Aug 05 2021 Valid 060100Z - 061200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE NORTHWEST AND UPPER MIDWEST... ...SUMMARY... A few lingering wind gusts, and perhaps a marginal hail report, remain possible this evening across parts of the Northwest and upper Midwest. ...01z Update... Scattered thunderstorms continue ahead of a frontal zone from the Arrowhead of MN into extreme southeast SD. This activity is mostly behind the short wave and is largely driven by boundary-layer heating and low-level convergence near the front. Diurnal cooling should result in weakening thunderstorms along this corridor in the next few hours. Seasonally strong short-wave trough is ejecting across northern CA toward southeast OR. High-level diffluent flow and strong boundary-layer heating remain conducive for scattered convection ahead of this feature. Gusty winds remain possible with this high-based convection for the next few hours then boundary-layer cooling should limit updraft strength. ..Darrow.. 08/06/2021 Read more LIVE: spc.noaa.gov