SPC 0700Z Day 2 Outlook
Day 2 Convective Outlook RESENT 1 NWS Storm Prediction Center Norman OK 1216 AM CST Thu Dec 10 2020 Valid 111200Z - 121200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS EAST TEXAS... ...SUMMARY... Thunderstorms associated with marginally severe wind gusts will be possible on Friday across parts of east Texas. ...East Texas... An upper-level trough will move eastward from the southern Rockies into the southern High Plains on Friday. At the surface, a cold front will advance southward into the southern Plains as low-level moisture return takes place across the eastern third of Texas. Surface dewpoints should reach the lower 60s F across the Texas coast and much of east Texas by afternoon. However, the moist layer should remain shallow keeping instability weak near the moist axis. In spite of the weak instability, thunderstorms appear likely to develop during the afternoon ahead of the front to the west of a 40 to 50 kt low-level jet. Convective coverage will increase by late afternoon as a band of strong large-scale ascent, ahead of the approaching upper-level trough, moves eastward across east Texas. SBCAPE near 500 J/kg combined with 0-6 km shear of 50 to 60 kt may support a marginal wind-damage threat with the stronger cells along the moist axis. Any potential for strong wind gusts should diminish quickly as convection moves into the Sabine River Valley during the early evening. ..Broyles.. 12/10/2020
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