National Chief Perry Bellegarde says Indigenous communities need immediate increases in funding and full involvement in all discussions with governments on planning and preparedness.
He says while the announced federal funding is a good start, more will be required.
The assembly's motion says that special consideration must be given to Canada's 96 remote, fly-in Indigenous communities.
The motion also affirms support for all First Nations that have already declared states of emergency, travel bans and other measures.