The cold front in combination with upper-air wind convergence will trigger thundery showers along with risks of lightning, cyclones, hails, whirlwinds, landslides, flash floods and flooding in the next three days.
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The National Center for Hydrology Meteorology Forecasting said that the cold wave is forecast to cover the Northeast, Northwest, North-Central and Mid-Central regions from April 17 through April 18 with the lowest temperatures between 13 degrees Celsius and 20 degrees Celsius.