Henry’s Fork, May 22nd, 2021

Cold, rainy weather kept the lower river giant stone fly activity down yesterday.  Nevertheless boats and rafts were numerous everywhere above Chester on the lower river. Yesterday the upper river experienced wind and snow making fishing difficult and travel downright dangerous. In fact, US Highway 20 was closed past Island Park, so getting into Montana by that highway and State Highway 87 was not possible. The same could happen to fishing and travel tomorrow according to weather predictions. As we warm up after tomorrow, look for the stone fly activity to move up the river, likely into Box Canyon where crowding is sure to happen.  Even with the stone fly activity it is a good idea to have caddis life cycle patterns in that fly box because at times fish key on them during stone fly activity. Also it might be prudent to check highway conditions before venturing to the upper river because of bad weather predicted for tomorrow.