Residents observed and described that during the heavy rain, hailstones were 1-2 cm in diameter.
The National Meteorological and Hydrological Forecasting Center reported that cold air is moving southward of the northern region.
It is forecast that under the influence of the ongoing cold air mass in combination with a low-pressure trough and wind convergence at altitudes above 1,500 meters, the Northern and Central regions would experience widespread thundery showers with average rainfalls of 15mm- above 50mm.
During thundery rains, residents need to prevent the risk of lightning, hails, gusty winds, flash flooding in rivers and streams, landslides and flooding in low-lying areas.
