That happens in the summer. Wait a month or two. I guarantee that they will have more fresh snow on them, and they will be shooting mortars to reduce avalanches before you know it. Seriously, dryer years means less seasonal snowfall, which is not enough to replace the normal melt off during the summer. It's just the normal cycle of weather.
But because the younger generations have never seen droughts, and believe the LIES of enviro wienies showing pics of melting glaciers compared to years where there was above average snowfall, They believe that man causes global warming, and not variations in weather, fluctuations in the amounts of moisture in the stratosphere, variations of energy output from the sun, Volcanic activity, cooling and warming of world sea's and oceans. Still, and regardless of that argument, global warming, (a whole whopping 1or 2 degrees or so) will have a net benefit for mankind, animals and plants. Don't forget, even if there was a 10 degree change in average earth temperatures, something that won't happen for a thousand years, it will still be damn cold at the north pole, -55f instead of -65f. The pack ice will not melt. Polar bears will just jump on and off the ice further north, instead of jumping off at Churchill Manitoba and eating the townsfolks and their chained up dogs.
But enviro wienies will complain about that too, because then they will have to pay more for the tundra buggie driver to drive further so they can see cute little polar bears, pee in the snow, and leave their garbage behind.
I can not say anything relevant about the reasons since I am no scientist. We all know that there is a large variety of different opinions among them. But one thing is for sure - the melting happens.