The storm struck at around 3 pm in Thong Nong, Minh Tam and Truong Ha communes, according to the Cao Bang Hydro-Meteorological Centre.
Hailstones hit in Cao Bang on the afternoon of March 31 (Photo: BEAT Cao Bang).
Thunderstorms accompanied by small hailstones lasted for about two hours, causing damage to agricultural land, vegetation and residential roofs, though no casualties were reported.
“The hailstones were quite small, about the size of a fingertip. We are currently collecting data to compile an accurate report,” a centre representative said.
Residents capture the hailstorm (Photo: BEAT Cao Bang).
The National Centre for Hydro-Meteorological Forecasting said March 31 marked the peak of a heatwave affecting northern and north central regions.
A weak cold air mass is expected to move into these areas overnight and into the following morning, bringing lower temperatures, cooler conditions and possible cold spells in mountainous areas.
Meteorological agencies warned that the interaction between the incoming cold air and the existing hot air mass could trigger strong thunderstorms, whirlwinds, lightning, hail and powerful gusts of wind, particularly in mountainous regions.
Experts said such phenomena can develop rapidly and unpredictably, posing risks including roof damage, fallen trees and disruption to daily life and production.
Crops damaged by the hailstorm (Photo: BEAT Cao Bang).
Authorities have advised residents to monitor forecasts closely, avoid outdoor activity during storms and take precautions to secure homes, property and vehicles to minimise potential damage.