SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1050 AM CST Thu Jan 14 2021 Valid 151200Z - 161200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... A few thunderstorms are possible over the North Carolina Outer Banks Friday evening. ...Synopsis... A closed synoptic upper low centered over the mid-MS Valley Friday morning will slowly shift eastward across the OH and TN Valleys by Saturday morning. At the surface, an occluding low will weaken over the mid-MS Valley, with a cold front stretching from the Lake Michigan vicinity toward the central Appalachians to the central Gulf Coast during the morning. A secondary low is expected to develop near the mid-Atlantic coast, and the surface cold front will continue to shift east through the period, eventually moving offshore the Atlantic seaboard overnight. Moisture return ahead of the front will be minimal. However, bands of showers are likely across parts of the southeastern states to the Mid-Atlantic. Most guidance suggests a narrow corridor of 50s F dewpoints will stretch from the FL peninsula northward along the SC/NC coasts during the evening. A few lightning flashes are possible near the Outer Banks of NC during the evening, but most thunderstorm activity is expected to develop offshore over the warmer Gulf Stream waters where better moisture and deeper buoyancy will exist. ..Leitman.. 01/14/2021
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