About this product, the Experimental Forecast of Reference Evapotranspiration for Short Canopy Vegetation:
The ET forecasts provided on this page are the expected amount of daily reference evapotranspiration in hundredths of an inch for the next 7 days and a total reference of evapotranspiration for the 7 day period.
The ET forecast is calculated by standardizing on the Penman-Monteith Reference Evapotranspiration equation (50 cm full cover alfalfa).
The ET forecasts are calculated using NWS forecasts of temperature, dewpoint, wind, and cloud cover.
This product will be issued at varying days during the day. Products from WFO Sioux Falls will be issued at least three times a day around 5 am, 12 pm, and 4 pm local time.