Grid Point #: 012499 
Longitude:   -77.5862
Latitude:     40.0027
Contributing Station, distance (km).
PACH    9.4
PAFC    9.4
PAFM   33.7
PAAC   34.0
DEW3   39.6
DKN1   39.8
HB1B   66.6
SA41   91.0