What can cause serious leaking of antifreeze? on 2000 Lincoln Continental

The service light said to check engine temp and the gauge read hot hadn't went over 5 miles. Leaking extremely badly on way home but yet there was still liquid in the radiator. Has never leaked before.

2 answers 1 comment
COULD BE WATER PUMP ,HOSES OR A NUMBER OF OTHER ISSUES. SEEK A MECH DIAG ON WATER LEAK SOURCE
Check for leaking intake manifold! Near thermostat.
I agree with both #1and#2 if you pressure test system see if anti freeze is leaking on the ground if not could be a head gasket