Describe the location of three air pressure systems around Salem, Oregon from May 6th to 7th.

On May 6th to 7th, there were three air pressure systems around Salem, Oregon. The first system was a high-pressure system located to the west of Salem, which brought clear skies and calm weather to the region. This high-pressure system was responsible for warm and dry conditions in the area.

The second system was a low-pressure system situated to the north of Salem, which brought cloudy skies and scattered showers to the region. This low-pressure system resulted in cooler temperatures and occasional rain showers in the area.

The third system was a stationary front located just south of Salem, which caused a mix of sun and clouds with the possibility of isolated thunderstorms in the region. This stationary front led to some instability in the atmosphere, resulting in sporadic showers and thunderstorms in the area.