Using dynamic tropopause GFS maps from @burgwx, we can see at least two ways the big North Pacific cyclone will affect the US: watch the red area of high DT from N Pac move to the East Coast (diabatic heating from cyclone) and the anticyclonic wave break in the NW US from WAF. pic.twitter.com/91R9pWsV2T

— Anthony Masiello (@antmasiello) January 9, 2019