Lomibao was born in
Brgy. Gueguesangen,
Mangaldan,
Pangasinan on July 5, 1950 to Juan Lomibao and Antonia Carbonel. He completed his primary education at Gueguesangen Elementary, and secondary education at Mangaldan High School where he graduated Salutatorian. He entered the
University of The Philippines to pursue a degree in Engineering, but after two years, entered the
Philippine Military Academy. Lomibao graduated as part of the
Masigasig Class of 1972 and was commissioned with the rank of 2nd Lieutenant in the now defunct
Philippine Constabulary (PC) - at that time, one of the four military service branches of the
Armed Forces of the Philippines (AFP) alongside the
Philippine Army,
Philippine Navy, and
Philippine Airforce. From late 1972–1974, Lomibao attended the Special Intelligence Training School in
Fort Bonifacio, Rizal (now
Taguig). From 1990 to 1991, Lomibao attended the Command and General Staff Course at the General Staff College of the AFP, where he was later absorbed as a
Police Superintendent following the merger of the
PC and
Integrated National Police (INP) into the
Philippine National Police. In 1996, Lomibao earned a master's degree in
Public Administration from the
Saint Louis College in
San Fernando,
La Union. == Military career ==