Administrators NorthGeorgiaWX Posted December 17, 2023 Administrators Share Posted December 17, 2023 SPC 0830Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0209 AM CST Sun Dec 17 2023 Valid 191200Z - 201200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected on Tuesday. ...Synopsis... An upper cyclone will likely be centered over PA early Tuesday morning, accompanied by cold mid-level temperatures and strong mid-level flow (i.e. 90-100 kt at 500 mb) throughout its eastern periphery. This system is forecast to gradually move eastward through the Northeast and Mid-Atlantic during the period, with largely zonal flow in its wake across the CONUS. High surface pressure associated with dry continental airmass will dominant the sensible weather east of the Rockies, limiting low-level moisture and precluding thunderstorm development. An upper low is expected to drift southward off the West Coast, ending the period centered well off the central CA Coast. A low-amplitude shortwave trough moving through the base of this upper low may move across southern CA. However, thermodynamic conditions in the vicinity of this shortwave are not conducive to lightning production. ..Mosier.. 12/17/2023 Read more View the full article Quote Link to comment Share on other sites More sharing options...
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