The cold tonight is supported by unseasonably high SLPs.
This map below has the record high SLP's for April. Note the 1037.3 mb (30.63") for Asheville, which was set 4/7/1945. Their low that day was 28, well above the daily record of 20. Records there go back to 1939. The CMC has them getting to as high as 1035 mb or 30.56" (at 12Z tomorrow).
Note also the 1037.3 mb (30.63") for Charlotte, which was set 4/21/1897. Their low that day was 35, but keep in mind that that was in late April thogh ti was well above the daily record of 30. Records there go back to 1893. The CMC has them getting to as high as 1034 mb or 30.53" (at 12Z tomorrow).
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