Atmospheric motions are categorized by their characteristic horizontal scale lengths. Meso-scale motions represent a specific category within this classification.
Meso-scale phenomena are larger than micro-scale events (like turbulence) but smaller than large-scale synoptic systems (like major low-pressure areas).
The established range for meso-scale atmospheric motions spans horizontally from approximately 30 km to 400 km.
Key examples of meso-scale phenomena include:
Understanding this scale is vital for predicting localized and regional weather patterns.
Other scales for context include:
Absolute humidity in atmosphere at $ 10^\circ $ is $5.0$ g/m$^3$ and maximum amount of water air can hold at same temperature is $ 10$ g m$^3$. What will be the relative humidity at the same temperature?