forecast_covariates.Rdname: Name of the covariate
year: Calendar year. Not all variables are summarized by calendar year and may be NA.
water_year: Water year. Not all variables are summarized by water year and may be NA.
stream: Stream
value: Numeric covariate value
month: Month. Not all variables are available at the monthly level.
text_value: Text value for categorical variables.
forecast_covariates Table of potential forecast covariates datasets