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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.

Friday, November 12, 2021

SPC Nov 13, 2021 0100 UTC Day 1 Convective Outlook

SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0627 PM CST Fri Nov 12 2021 Valid 130100Z - 131200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe weather is not expected through tonight across the USA. ...Discussion... An upper low currently extends from eastern Ontario into northern IL, with 500 mb temperatures to around -32 C. The southern lobe of the midlevel thermal trough will pivot eastward across Lower MI tonight, providing further cooling aloft. This, in combination with relatively warmer lake waters, may yet support isolated lightning flashes over southwestern Lower MI with shallow convection. To the east, a cold front has now cleared Cape Cod, and thunderstorms are no longer expected here as instability will remain over the Atlantic Ocean. Elsewhere, the loss of heating over southern FL should result in a continued deterioration of existing weak convection in the absence of lift. As such, thunderstorms are no longer expected here. ..Jewell.. 11/13/2021 Read more LIVE: spc.noaa.gov