Administrators NorthGeorgiaWX Posted March 11 Administrators Share Posted March 11 SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0725 AM CDT Mon Mar 11 2024 Valid 111300Z - 121200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected. ...Synopsis/Discussion... A progressive mid/upper-level pattern over the CONUS will lose some amplitude temporarily, as an intense, synoptic-scale cyclone and accompanying trough exit New England and move farther offshore over the Atlantic. While passing over a dry/stable boundary layer left by recent cold-frontal passage, an upstream shortwave trough now over the southern Plains will have no substantive convective consequence, as it moves eastward across the Southeast and weakens. Another in a series of shortwave troughs -- emanating from the base of a persistent larger-scale trough over AK and the Gulf of Alaska -- is moving across the interior Northwest. In the 03Z-06Z time frame, the next in the series should move ashore, followed early on day 2 by yet another. Low/middle-level destabilization preceding each trough should lead to steepening lapse rates, atop a cool, moist marine layer, with minimal MLCINH. Cumulonimbi should result that are relatively shallow, but still potentially capable of extending into lightning-producing icing layers on an isolated basis. As such, a few flashes may be noted near the coast from northwestern OR northward, this evening and overnight. ..Edwards/Jewell.. 03/11/2024 Read more View the full article Quote Link to comment Share on other sites More sharing options...
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