Grid Point #: 011628 
Longitude:   -77.7778
Latitude:     38.9235
Contributing Station, distance (km).
DEW6   20.5
VAGV   20.9
LWX1   25.6
MAS6   27.8
LOY4   28.0
HB4B   35.4
LOYC   42.6
BCC2   43.5
WVKE   47.5
KP13   52.0