Here's the location of F&G's Daily Sonar numbers at Miles Lake...
It's not always updated every day but nearly so.
And of course they say how it takes two weeks from where these are counted to get to Chitina(I've always heard/figured 10 days to two weeks) but that sure can vary. Last years late run of the first reds and then HUGE surge of fish just didn't get to Chitina any where in that time window. At the annual meeting of the Chitina Dipnetters Association there was talk of a second sonar counter at the upper limit of the Chitina Personel Use Fishery(the bridge to McCarthy crossing the Copper) so as to be able to hold open Supplemental Periods until it was known that the 'extra' fish actually had moved. Mark Hem commented on how he's rarely seen the Supplemental periods matching the movement of the fish. The F&G guy said it would take $100,000 or was it $200,000? to put a second sonar in. He quoted the same price as Miles Lake sonar which is isolated and reachable only by boat. Gotta be cheaper than that one way out there.
I sure missed all those fish of overabundance the last two times I went on a supplemental period. If they ain't moving they ain't moving. Does seem a shame to limit the supplemental period to a week when that is so unlikely to match/catch the movement of those fish through Chitina.
Anyhow todays numbers look good, so good luck to you this summer! Should not be too long now.