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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.

Saturday, November 6, 2021

SPC Nov 6, 2021 2000 UTC Day 1 Convective Outlook

SPC 2000Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0239 PM CDT Sat Nov 06 2021 Valid 062000Z - 071200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not forecast across the contiguous United States today. ...20Z Update... The previous forecast remains on track, with no changes or additions made. Please see the previous forecast below for more details. ..Squitieri.. 11/06/2021 .PREV DISCUSSION... /ISSUED 1108 AM CDT Sat Nov 06 2021/ ...Synopsis and Discussion... Multiple low-amplitude shortwave troughs will progress from the northeast Pacific across the Pacific Northwest and northern Rockies through tonight. Continued onshore flow along with steep low/mid-level lapse rates should support low-topped convection mainly this afternoon and evening. Isolated lightning flashes may occur with the strongest cores that can reach a depth sufficient for charge separation, primarily along and near the WA/OR Coast. Farther east, a shortwave trough over parts of the Southeast will move slowly east-northeastward over the Gulf Stream through the period. A related surface cyclone off the northeast FL Coast will develop east-northeastward in tandem with the shortwave trough. Mainly stratiform rain should prevail over land along the South Atlantic Coast as a marine front remains offshore. Still, the strong ascent associated with the shortwave trough coupled with meager elevated instability may support a storm or two in the nearshore waters off the southern NC Coast this afternoon through tonight. Read more LIVE: