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I present estimates to justify previously proposed by me heuristic DipoleDynamical Model (DDM) of Ball Lightning (BL). The movement and energy supplyingto the dipole BL are due to the atmospheric electric field. Crucial for thedetailed analysis of BL is using the new relation of balance of the force ofatmospheric electric field (per unit mass of electron cloud) and dipole forceselectrons-ions within BL dipole (per unit mass of BL) as the first necessarycondition for the existance of BL as an integer. This model is unique because,unlike existing static models, fundamental condition for the existence of BallLightning is its forward motion. The virial theorem limiting BL power does notapply to BL which is not closed system like the Sun or Galaxy systems and isstrongly dependent part of the infinitely extended in time and space largesystem. Stability of BL is due to two free parameters with the fundamental roleof thermodynamic non-equilibrium, ionization, recombination and translationalmovement with energy loss by radiation and also excess volumetric positivecharge. Stability of BL is not related to the presence of any external shells.Polarization degree of BL plasma is characterized by polarizability factor{\gamma}. An example is presented of calculating the stability of an option ofBL. There is also a possible connection of stability BL with statisticaldistributions of the atmospheric electric field in time and space. Destructionof BL can also occur due to arising kinematical instability at its accelerating(or decelerating) movement. Maximal energy density in BL DDM does not exceedthe value Espec<(10(8) - 10(9)) J/m(3) decreasing with the growing BL radius.Resulting indefinitely long BL lifetime is also discussed. BL has no outershell and no any inner rigid or elastic microstructure elements.

Comments to support the Dipole Dynamical Model (DDM) of Ball Lightning (BL)