Pheno Forecast maps predict key life cycle stages in invasive and pest species, to improve management efficacy. The Buffelgrass Pheno Forecast is based on known precipitation thresholds for triggering green-up to a level where management actions are most effective based on research presented in Wallace et al. 2016. Daily values represent the 24 day prior precipitation accumulation. 24 day accumulated precipitation values are derived from PRISM daily precipitation data. These maps are updated daily and predict green-up one to two weeks in the future. The data are accessible via the USA-NPN Visualization Tool and the USA-NPN Geoserver (user access facilitated by the Geoserver Request Builder). For all inquiries regarding this dataset, please contact the USA-NPN. This data is subject to the USA-NPN's Data Use Policy.