A method was developed to estimate sensible heat flux using routine weather data. The researchers used energy balance equations and formulas to calculate latent heat flux and soil heat flux. They found that surface resistance is linked to humidity and net radiation, which affects soil dryness. The model accurately predicted surface resistance and sensible heat flux at three different sites. The potential evaporation model tended to overestimate evaporation, especially in dry conditions. However, using the surface resistance model provided accurate estimates of latent heat flux.