Slower wind was observed at 1 au within the corresponding timeframe that NH observed slow wind in the outer heliosphere. This is a time series of the solar wind speed measurements for the normalized collective OMNI dataset of solar wind observations collected near Earth in the same time range as shown in Figure 2 and propagated out to the distance of NH. The black curve is the propagated 1 hr speed measurements. Solar rotation averages (25.38 days) are shown purple and green, where the purple color indicates when NH was in the same longitudinal quadrant (within ±45° deg) as the OMNI observations collected near Earth. The pink horizontal line at 400 km s⁻¹ is shown for comparison with Figure 2. The bottom panel shows the longitudinal separation between NH and Earth.