Flow out of Mackay Dam is now a bit over 300 cfs with flow increasing to that level yesterday. That is about double what it was about a week ago, so wading is tougher and fish still adjusting to the increase. Best strategy is to wait for a visit late this week and hope another big increase does not happen between now and then.
Flow out of Mackay Dam has been steadily rising since April 11th. Now is up to 163 cfs. This is not a change from 130 cfs for weeks to impact fishing very much. Continue with the strategy we described in recent reports. If and when flows are increased enough or at a rate that impacts fishing, we will post it here.
Flow out of Mackay Dam remains around 130 cfs. It has been near this figure for several weeks now. This should catch your eye because it indicates a stable fishery. The Big Lost River below Mackay Dam now offers the most consistent fishing in this part of Idaho. It will stay that way until flows are bumped up. Midge and BWO life cycle patterns should be in your fly box when you visit here. Small bead head nymphs and annelid patterns should be there too. Afternoons will offer the best fishing.
Flow out of Mackay Dam has been almost constant at around 135 cfs so far, but with warming weather it could bump up soon. BWOs are on the increase to the point that fish seem to take them more than taking midges. Take your favorite BWO life cycle patterns (small bead head nymphs,too!) when you go and take the advise that as the weather warms, the flow out of Mackay Dam will increase.
Flow out of Mackay Dam is 135 cfs. This means the river is at a good level for wading and snow depth is not enough to limit access. Clear waters prevail. Midge pupa patterns of choice remain the best way to find action, but BWOs are coming out in good numbers. It’s time to have their life cycle patterns available. Small bead head patterns drifted through transition waters will always produce.
It’s a cold time of year in Big Lost River country, so dress accordingly if you plan to fish there. During cloudy days some good BWO emergences remain, other than that most top water fishing is for trout taking midges. Small (#16-20) bead head nymphs of your choice also work. With flows below Mackay Dam at 200 cfs, water is ideal for wading, but sure is cold.