SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1019 AM CST Wed Jan 13 2021 Valid 131630Z - 141200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected through tonight. ...Southeast States... A southern-stream upper low is moving across LA/MS today, with its associated mid level speed max approaching the southeast states. Lift in the left-exit region of this jet will continue to result in scattered showers across parts of MS/AL/GA this afternoon and evening. While an isolated lightning flash is possible, it is likely to stay below the 10% criteria for a general thunderstorm outlook. Later this evening, increasing large-scale ascent will shift eastward into the Carolinas. Forecast soundings suggest a slightly deeper unstable layer, along with a deeper moist layer. This may be sufficient for a better chance of lightning flashes after dark over parts of SC and southern NC. ..Hart.. 01/13/2021
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