A cyclonic air mass associated with a supercell; its presence is a condition for a tornado warning.
More example sentences
- The frequency shift is then converted to wind velocity, yielding a small region of rapidly changing wind direction, a characteristic rotational wind shear signature of the mesocyclone indicating a tornadic circulation.
- Various different temperatures and wind interactions at different altitudes can cause a rotating updraft called a mesocyclone.
- One of the major differences of super cells compared to that of single-cell and multi-cells storms is that, the super cell contains a viscous rotating updraft, this rotational updraft is known as a mesocyclone.
late 20th century.