A late-winter storm that was expected to dump a large amount of snow along the East Coast led to cancellation of Monday racing at tracks in Pennsylvania and Massachusetts.Philadelphia Park announced that racing was cancelled for Monday and Tuesday. A winter storm warning issued by the National Weather Service forecast a mixture of sleet and rain early Monday would change to snow by afternoon across southeast Pennsylvania, central and southwest New Jersey, northern Delaware, and Northeast Maryland. Up to six inches of snow was expected in the Philadelphia area.Racing was also cancelled at Suffolk Downs in Boston, where forecasters were predicting snowfall ranging from 18-24 inches. In addition, winds between 35-75 m.p.h. were also expected in the area along the coast.Simulcasting was suspended at Aqueduct Monday due to weather, and at Meadowlands and Monmouth Tuesday. A release from the New Jersey tracks said "with the cancellation of racing for Tuesday at many tracks whose signals we would have imported, we have decided to close as well," said president Chris McErlean. Plans are for those tracks to reopen for simulcasting on Wednesday. On Sunday, racing at Mountaineer Park in West Virginia was cancelled after the first race due to unsafe track conditions, according to Equibase.