With the weather temp dropping into the teens, I've noticed some engine steam while sitting in stop and go traffic. I found the low coolant and some antifreeze around the lower RH area of the radiator (looking from the front of the car with the hood open...

I do not see a large heater hose so I wonder if I may have a leaking radiator or small leak in a hose?

 

Check the part of the radiator thats under the air vent. It usually breaks there from people slamming the hood.

 

The coolant could be running down from the top of the radiator. Usually antifreeze will leave white or light gray trails when it dries. It is common for the radiator to itself to leak right under the upper radiator hose.

 

This is the Common Rad crack everyone gets it