Jason Vandercoy

Jason Vandercoy, near Mount Vernon, Washington, said flooding is the number one fear for farmers in his area.

Vandercoy's farm is still dry, but some of his neighbors had to move their herds.

Milk cows can get stressed out when their milking times change, he says.

Van der Kooij's farm is in the same area where tens of thousands of people have been ordered to evacuate their homes.

For NPR News, I'm Anna King.