Well the temp in the bird house finally got up above freezing so I went and took some measurements.
My battery voltage is 12 .56 volts, car has been sitting with no charger since the beginning of October.
My gas gauge shows 5/8+ of a full tank.
I disconnected the Tan wire where is goes to the sender the gauge showed over full, needle at three O clock. By disconnecting the wire the resistance goes to infinity and the needle move correspondingly.
Voltage from the guage measured at the sender is 8.16 volts.
Amperage at the sender is 0.254 amps.
It would not light up a test light I have.
It would slightly [ very slight] illuminate a GE 57 mini lamp.

I hope you are not suffering any personal or property damage due to the flooding in the area.