
1) Cause of a spring flood 2) Cause of a spring rush 3) Cause of winter flooding
Found on
https://www.crosswordclues.com/clue/snowmelt

In hydrology, snowmelt is surface runoff produced from melting snow. It can also be used to describe the period or season during which such runoff is produced. Water produced by snowmelt is an important part of the annual water cycle in many parts of the world, in some cases contributing high fractions of the annual runoff in a watershed. Predicti...
Found on
http://en.wikipedia.org/wiki/Snowmelt

melting of the snowcover, and also the period during which melting of the snow cover occurs at the end of the winter.
Found on
https://nsidc.org/cryosphere/glossary?page=23
No exact match found.