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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.

Saturday, July 17, 2021

SPC Jul 17, 2021 Day 4-8 Severe Weather Outlook

Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0320 AM CDT Sat Jul 17 2021 Valid 201200Z - 251200Z ...DISCUSSION... Persistent western/central CONUS ridging will be the dominant feature in the upper pattern through the end of next week. Modest troughing may also persist across eastern Canada, the Upper Great Lakes, and the Northeast, reinforced by shortwave troughs rotating through its base every few days. Most of the CONUS will be void of strong mid-level flow, tempering the overall severe potential. Even so, stronger mid-level flow accompanying the shortwave troughs moving through the base of the upper trough may encounter enough low-level to support organized storms. However, predictability of the timing of these shortwaves is low, as is the predictability of how buoyant the air mass will be as the shortwaves move through. As such, predictability is too low to outlook any areas, but it does look like some potential for severe may materialize across the Upper Midwest/Upper Great Lakes and Northeast during the second half of next week. Read more LIVE: spc.noaa.gov