1 gallon, per person, per day, is what you're supposed to have on hand for these emergencies.
Tomorrow morning, from the moment you get up, think of ALL of your water intake.
From brushing your teeth in the morning till night.
If you've ever been under a boil order, which I have, it gives you a whole new appreciation for running water. I never take it for granted now.
ok... Assuming 250,000 people in the affect NO area..
Now multiply that gallon by 96 gallons per pallet, 24 pallets per semi...
that's 2100(!!) SEMI-LOADS of water a DAY. Each truck could make 3 trips per day, that's 700 SEMIS, requiring 700 drivers, 2100 meals (45 cases of MRE's- 2 pallets)
Assume that each truck is staging from ONLY Baton Rouge, and the round trip takes 20 gallons of fuel, that's 42,000 gallons, or 7 tanker loads...
I hope you begin to see the enormity of the logistical task...