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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, July 1, 2021

SPC Jul 1, 2021 Day 4-8 Severe Weather Outlook

Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0327 AM CDT Thu Jul 01 2021 Valid 041200Z - 091200Z ...DISCUSSION... Overall severe potential appears low during the Day 4-8 period. An upper ridge/anticyclone will persist over the western U.S. Meanwhile, low-amplitude, weak westerly flow will envelop much of the central/eastern CONUS for much of the period. Given the expected weak shear environment and nondescript forcing mechanisms, the probability of organized severe thunderstorms appears low through at least Day 6/Tue. On Days 7-8/Wed-Thu, medium-range guidance is somewhat consistent in a shortwave trough deepening as it shifts eastward across the northern High Plains into the Upper Midwest. This could support some increasing threat for severe storms, but timing and intensity of this feature is still too uncertain to introduce probabilities at this time. Read more LIVE: spc.noaa.gov