Note the progression of the European model in the past 24 hours. Much less cold in the East with the 12Z Apr19 run. The 12Z Apr19 run of the GFS hangs onto a colder air mass (though much briefer). I believe the GFS will follow the Euro trend with time. pic.twitter.com/Pehs5IKQry

— Ken Clark (@ClarkKenwxman) April 19, 2024