Loosing electrical power with no performance loss.

What is your question?

I was driving my car today when all of a sudden i lost power, i lost power to the radio, the lights, my blinkers and everything. I then got an alert that the oil pressure was low, the parking break was on, the coolant level was low, and a cycle of other problems but the car did not loose any performance power it drove like normal. It would kick back on and i would get all the power back for a second and it would kick back off telling me all those errors again. I should also point out that it rained HARD the previous night and when i got into my car this morning to make a turn water came in under my glove box. Someone please help me... im stranded at work until i get an answer. Thanks in advance