Dawkin's book 'Unweaving the rainbow' is a very useful investigation of these sort of issues.
When you really start digging into events like this they invariably become less significant the more facts you establish. For example how wide are you willing to spread the net of probability? If your dream happened a day before a parent dies, two days, two weeks, a month? Does the parent have to die to fulfil the premonition or just have a worrying incident? How worrying exactly?
How many tens of thousands will dream about the demise of their elderly parents this evening? What percentage will come true - or slightly true if we include strokes, heart attacks and accidents that don't result in immediate death?
What about the text? During the crisis and the call for an ambulance did you contact any other family members? Is it possible one of them contacted your dad but for reasons of family politics didn't want to say so?
However odd things may seem even amazing coincidences are infinitely then time going in reverse and consciousness coming back from the future.
Susan Blackmore spent half her career trying to find a scientific basis for supernatural claims. She eventually gave up when every single incident turned out to be be misremembered, exaggerated or just plain false.
Occam's Razor!