Administrators NorthGeorgiaWX Posted December 23, 2023 Administrators Share Posted December 23, 2023 SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0657 PM CST Fri Dec 22 2023 Valid 230100Z - 231200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FOR SOUTHERN ARIZONA... ...SUMMARY... Isolated severe gusts are possible tonight across southern Arizona. ...Synopsis... Water-vapor imagery early this evening shows a mid-level low over the California/Mexico border and it will move east along the Arizona/Sonora border by early Saturday morning. Relatively cool mid-level temperatures (-22 deg C at 500 mb) were observed this evening on the 00z San Diego raob. These cool temperatures aloft are contributing to weak buoyancy across the Desert Southwest and are supporting episodic thunderstorm development. As deep-layer ascent spreads east across southern AZ this evening, a continuation of a forced convective band may continue to yield an isolated risk for localized severe gusts despite weak low-level lapse rates. Elsewhere, tranquil conditions exist across a large part of the remaining CONUS due in part to a surface ridge over the Gulf Coast and Eastern Seaboard. ..Smith.. 12/23/2023 Read more View the full article Quote Link to comment Share on other sites More sharing options...
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