Administrators NorthGeorgiaWX Posted December 6, 2023 Administrators Share Posted December 6, 2023 SPC 2000Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0158 PM CST Wed Dec 06 2023 Valid 062000Z - 071200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are unlikely through tonight. ...20Z Update... The primary change with this update was removing the General Thunderstorm area over Idaho and Montana. Most short-range guidance depicts very minimal instability over the area, and any thunderstorm activity should remain very isolated. Elsewhere, the forecast remains on track. ..Weinman/Leitman.. 12/06/2023 .PREV DISCUSSION... /ISSUED 1027 AM CST Wed Dec 06 2023/ ...Western OR and northern CA... A strong upper trough is approaching the coast of northern CA and southwest OR, with the associated surface cold front moving ashore in the next couple of hours. Strong onshore flow, lift in vicinity of the front, and cold temperatures aloft may result in isolated lightning flashes this afternoon along the coastal ranges and interior mountains of northern CA/western OR. Present indications are that this activity will be quite sparse. ...ID/MT... Later tonight, the aforementioned shortwave trough will track inland and affect portions of ID/MT. Steep mid-level lapse rates and continued strong large scale lift will result in convective showers over the mountains of central ID into western MT. Profiles will be quite cold, but pockets of weak instability may be sufficient for a few lightning flashes - mainly after midnight. Read more View the full article Quote Link to comment Share on other sites More sharing options...
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