I'd invite consideration of three points in partiular:
- 1 > Miracles do not (or at least don't need to) violate the currently-observed patterns of physics: For example if a transfer of energy had ensured that the Galilean waters had briefly frozen beneath Jesus' feet there'd be no violation of physical law; but that radical reversal of the normal course of events obviously would still be a miracle, still be overwhelming evidence of external agency, even though we couldn't see which strings were pulled to get the job done. Even if the appeal to proscriptive 'laws' of physics were scientifically or philosophically viable to begin with (which it isn't), it simply doesn't apply without first assuming that the strings pulled were violations of those laws!
2 > Miracles have been reported in many if not all cultures, in all periods of history down to the present: That reported observation of miracles is neither confined to ignorant and superstitious eras nor idiosyncratic of a particular cultural tradition makes the assumption that such reports never have any basis in fact considerably less plausible.
3 > There appear to be hundreds of thousands of expert reports of observed miracles over the past few decades, even in the USA alone: A 2004 survey by the Louis Finkelstein Institute for Religious and Social Studies and HCD Research "found that 74% of doctors believe that miracles have occurred in the past and 73% believe that can occur today," but in particular that "a majority of doctors (55%) said that they have seen treatment results in their patients that they would consider miraculous." Those results seem to be consistent with additional surveys in 2008 and 2010. Extrapolating from the fact that there are over 1 million doctors in the USA, we can infer well over half a million expert reports of observed miracles in that country over the past few decades.
By the arbitrary standards of 'extraordinary evidence' that are occasionally demanded on this forum it's obvious that no miracle report (or indeed almost anything else) is likely to measure up. Some folk have even said that if millions of Christians suddenly disappeared and the skies over Jerusalem were filled with armies from heaven with Jesus at their head, they still wouldn't consider it evidence of a Christian miracle but simply an alien invasion! There are always going to be alternative 'explanations' for any and all reported observations, however ad hoc and purely speculative those may be.
But does the rationale for demanding extraordinary evidence have any merit in the first place?
Is there any reason - besides naturalistic biases - for supposing that miracles constitute any more of an 'extraordinary claim' than winning the lottery or some other individually improbable but overall almost commonplace kind of occurrence?