Administrators NorthGeorgiaWX Posted September 29 Administrators Share Posted September 29 SPC 1930Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0138 PM CDT Sun Sep 29 2024 Valid 011200Z - 021200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected on Tuesday. ...Discussion... A weakening shortwave trough will progress east over the Lower Mid-Atlantic States on Tuesday and offshore Tuesday night. Isolated thunderstorms will be possible over eastern NC to far southeast VA during the afternoon before the trough departs. A more substantial upper-level trough will move across ON and the northern Great Lakes. Ahead of the trough, a surface cold front will march east across the central Great Lakes to the Lower OH Valley during the afternoon. Surface dew points ahead of the cold front should be in the low 60s, which will yield a plume of weak buoyancy. Forecast soundings suggest relatively warm 700-mb temperatures will inhibit thunderstorm development ahead of the front. But convergence along it may be sufficient for surface-based thunderstorms across parts of Lower MI into IN/OH during the afternoon. Weak low-level winds and modest deep-layer shear, owing to stronger flow lagging behind the front, should preclude severe storms. The greatest coverage of thunderstorms is most likely across the central FL Peninsula as the moist air mass heats during the day and sea breeze boundaries provide lift. ..Grams.. 09/29/2024 Read more View the full article Quote Link to comment Share on other sites More sharing options...
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