Mid Atlantic Weather Winter Storm check List Posted on January 12, 2011January 12, 2011 By Mid Atlantic Weather No Comments on Mid Atlantic Weather Winter Storm check List From Dave Tolleris (DT) of WxRisk – The following are some of the factors to be looked at for Mid Atlantic Winter Storms: NAO is Negative 50/50 L0w Displaced Polar Vortex State of MJO Positive NAO Track of 850 Low: Analogs Weather Education