Recent studies at a geomagnetic latitude of 54°N have shown a pronounced peak in the occurrence of HF radar echoes from field‐aligned irregularities near the time of local sunset. It is shown that these results are consistent with previous high‐latitude observations of spread F if the effects of ionospheric refraction are considered. It is also noted that the echoes occurring near sunset differ from the usual nighttime echoes in range, in the amount of range spread, and in their relation to magnetic activity.