The development of the rear-inflow jet

rear inflow jets

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Once the tilted structure shown in the previous slide develops, a rear inflow jet develops. The rear inflow jet develops due to vorticity generation caused by the buoyancy difference between the unstable rising air, and the relatively stable air associated with the cold pool. The strength and orientation of the rear inflow jet are modulated by the strength of the cold pool, the degree of instability in the rising air above the cold pool, and the environmental shear. The strength of the cold pool is partially dependent on the degree of dry air at mid-levels. Bow echoes and damaging surface winds are typically associated with well-developed rear inflow jets.

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