Joe Bastardi: Short time surge of warmth still false spring as major cold invades again this weekend into next week! Threat of major severe outbreak plains to Ohio valley fight Fri/Sat.Amazing close 500mb analog April 16-17 to MJO analog year of 2007.1962,1958,1982,if you pick em,they will cme https://t.co/VFZxlv1CTo