In anticipation of the launch of GOES-R in March 2016, the NWS has made it a top priority to have its forecasters participate in GOES-R user readiness by using proxy imagery and products in forecast operations. For example, the three spectral bands (7.5, 7.0, and 6.5 Ám) dedicated to sensing atmospheric water vapor on the GOES Sounder can be used as a proxy for GOES-R. Currently, GOES Sounder imagery is not often used by NWS meteorologists for decision making because the imagery is only available every hour at a nominal resolution of 10 km. However, even at these low temporal and spatial scales, the GOES Sounder 7.5-Ám imagery can prepare meteorologists for GOES-R while being useful in identifying low-level water vapor features. Another GOES-R proxy dataset is synthetic imagery from the 4-km NSSL WRF-ARW model. Synthetic imagery at 7.34 Ám emulates one of the water vapor channels that will be available on GOES-R and allows for an efficient visual comparison between the model output and the observed GOES Sounder imagery. Forecasters can utilize these forecasts to understand the features that can be identified in the 7.34-Ám band which in turn will help them prepare for the new imagery on GOES-R. The purpose of this applications-based research is to demonstrate how using multiple water vapor bands could have assisted operational meteorologists during three northeastern U.S. severe weather episodes while emphasizing the importance of the three water vapor bands at high spatial and temporal scales once GOES-R becomes operational.