Do what you can to help the helpless. National, state, and local charitable agencies need cash donations as they prepare for what will doubtless be a long and difficult relief period. Here's some of the better ones:
American Red Cross: www.redcross.org
Catholic Charities, USA: www.catholiccharitiesusa.org
Salvation Army: www.salvationarmy.org
Presbyterian Disaster Assistance: www.pcusa.org/pda
Watch out for scams. You can check the veracity of non-profits and charities by directing your browser here.