Breadcrumb Home Forecasts Forecasts and Near Real Time (NRT) Products We produce daily forecasts of chemical weather using the WACCM and WRF-Chem atmospheric models. Forecast Maps WACCM chemistry and aerosol forecasts. Custom Plots WACCM plotting by map, vertical cross-section, or time series. Download WACCM Output Download a subset of WACCM model output. WACCM Chemical Map World map displaying fire hot spots and surface chemicals. ACOM Worldview ACOM Worldview of chemicals over the globe, in cooperation with NASA.