Grid Point #: 001789 
Longitude:   -99.5187
Latitude:     18.6349
Contributing Station, distance (km).
MRCU   45.1
YAIG   53.9
TOL2   74.4
TNAT  165.7
TNMO  212.0
TNIF  253.9
LZCR  291.2
TNNP  376.5