Volume Versus Temperature

Visited a sierra stream/river that was flowing high BUT was VERY warm. Although I follow water levels online a ton, this was a reminder that big water doesn't always relate with temps. Season and source can be a factor. Snowmelt is colder than a summer storm's water and, of course, weather plays a critical role in affecting the temps as the trickles find their way to the larger tribs. As a result the prime window for feeding fish was small despite wonderfully generous hatches. Sorry if this is too technical but it might save you a tank of gas.