Air current and Weather condition

Air current noun - Air moving (sometimes with considerable force) from an area of high pressure to an area of low pressure.

Weather condition and air current are semantically related. In some cases you can use "Weather condition" instead a noun phrase "Air current".

Weather condition noun - The atmospheric conditions that comprise the state of the atmosphere in terms of temperature and wind and clouds and precipitation.

Air current and weather condition are semantically related. Sometimes you can replace phrase "Air current" with "Weather condition", this phrases are similar.