Cessna 310/T310C
Flight Crew Commercial; Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 25; Flight Crew Total 715; Flight Crew Type 380
Conflict NMAC
Air Traffic Control Issued Advisory / Alert; Flight Crew Took Evasive Action
Flying in an area known as the west practice area; south of I-80 as requested by ATC at 5500 feet. One military T-38 descended from 10 o'clock position descending through my altitude at a very high rate of speed 2500 feet in front of me. Second military T-38 from my 9 o'clock crossing in front of me very close at a very high rate of speed. Approximately 5 seconds later Omaha TRACON called a traffic alert at my 3 o'clock at 5700 feet. Omaha TRACON radioed that the Omaha radar was down and they had switched to Center radar.
Pilot of CE-310; while operating in a VFR practice area; experienced a NMAC with two T-38 aircraft. After; Omaha TRACON issued a traffic alert.