Administrators NorthGeorgiaWX Posted December 18, 2023 Administrators Share Posted December 18, 2023 SPC 0830Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0200 AM CST Mon Dec 18 2023 Valid 201200Z - 211200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated lightning flashes are possible along the central and southern California coast on Wednesday. ...Synopsis... High pressure associated with a dry continental air mass will dominant the sensible weather across much of the central and eastern CONUS during the period. Some limited air mass modification is anticipated across the southern Plains as a low-amplitude shortwave trough approaches from the west. Some precipitation is possible in vicinity of this shortwave, but thermodynamic conditions are not expected to support lightning production. Farther west, an upper low is forecast to begin the period centered about 275 miles west-southwest of SFO, before then progressing southward/south-southwestward throughout the period. Persistent southwesterly flow aloft will help keep profiles moist over much of the central and southern CA coast. Mid-level temperatures across this region are expected to cool throughout the day as the upper low move southward. Modest buoyancy associated with these cooling profiles could support isolated lightning flashes within any deeper, more sustained updrafts. ..Mosier.. 12/18/2023 Read more View the full article Quote Link to comment Share on other sites More sharing options...
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