SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1030 AM CST Sun Jan 17 2021 Valid 171630Z - 181200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected across the contiguous U.S. through tonight. ...Synopsis/Discussion... The potential for lightning-producing convection will be essentially nil across the CONUS this afternoon and tonight. Associated with an advancing shortwave trough, a couple of lightning flashes cannot be conclusively ruled out this afternoon amid steep lapse rates across the middle Ohio Valley and Cumberland Plateau, however this potential should remain very low given the very shallow nature of the convection. ..Guyer.. 01/17/2021
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