script pre-pends values 17 and 2 as first 2 values in file sent to spark
these two values represent scale: 2 is extremely low (1 is unlikely) and
17 is when severe actions are taken (20 feet is levee height, but we
rarely see heights over 17 at Carrollton because they open the spillway
long before that happens.
Scaling is clunky because the scale values show up on the left side of the sparkline. Fixing that is a someday/maybe.
script pre-pends values 17 and 2 as first 2 values in file sent to spark these two values represent scale: 2 is extremely low (1 is unlikely) and 17 is when severe actions are taken (20 feet is levee height, but we rarely see heights over 17 at Carrollton because they open the spillway long before that happens.
Scaling is clunky because the scale values show up on the left side of the sparkline. Fixing that is a someday/maybe.