Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1241 AM CDT Sun Apr 23 2017 Valid 241200Z - 251200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF EASTERN SOUTH CAROLINA INTO SOUTHERN NORTH CAROLINA... ...SUMMARY... Thunderstorms associated with a marginal wind-damage threat will be possible on Monday across parts of eastern South Carolina and southern North Carolina. ...Eastern South Carolina/Southern North Carolina... An upper-level low is forecast to move eastward across central Georgia to the Atlantic coast on Monday. At the surface, a low is forecast to deepen and move off the coast from South Carolina. A cold front trailing the surface low, is forecast to move into the coastal sections of South Carolina by Monday afternoon. Thunderstorm development appears likely to take place along the front in eastern South Carolina with convection expanding northeastward with time during the afternoon as the surface low remains offshore but moves toward the coast of North Carolina. NAM forecast soundings from Charleston, South Carolina to Wilmington, North Carolina for Monday afternoon show weak instability (MLCAPE of 400 to 600 J/kg) with 0-6 km shear of 25 to 35 kt. This combined with surface dewpoints in the mid 60s F may be enough for marginally severe wet downbursts with the stronger multicells. ..Broyles.. 04/23/2017Read more
from SPC Forecast Products http://ift.tt/GB0aDL
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