Sometimes, but not always, the wind direction (as given by weather.com for my location) is exactly the opposite of the cloud movement. For example: the wind may be given as NW but the storm clouds are coming out of the SE. Almost always the wind direction given by weather.com is corroborated by the wind vane on the top of my house so I assume that weather.com is giving me the "ground level" wind direction. Am I correct in assuming that the upper atmosphere wind direction can be 180 degrees to the ground direction? I am aware that wind direction and wind speed can be different at different altitudes: jet streams.