Low Level Convergence at the 24 th hour generated using WRF Ver 4.2 at a resolution of 15 Km for India is the graphical representation of the expected magnitude and pattern of horizontal rotation (or the vorticity) of atmosphere around a vertical axis or the vorticity at 850 hPa (1.5km). It is typically displayed with warm colors ranging from shades of red (to yellow) indicating positive vorticity (cyclonic rotation), and cool colors shades of green (to blue) indicating negative vorticity (anticyclonic rotation). They are useful in identifying areas of high and low vorticity, associated with weather systems such as fronts, lows, and highs etc.

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