I think that there will be a prospect of more frequent floods and heat waves because as the glaciers melt, the sea levels will begin to rise, meaning water levels will become unpredictable.
There requires to be a large change in the heat for the glaciers to melt, so when the glaciers have melted, the chance of heatwaves will be higher due to the fact that the Earth is warming up and heat is rising and can be unpredictable.