Vietnam: High temperatures forecast to persist across central and northern regions through at least July 29

A heatwave is likely to persist across much of central and northern Vietnam through at least July 29. As of July 25, the Vietnam National Center for Hydro-Meteorological Forecasting (NCHMF) has issued a warning for high temperatures across the affected regions. Daytime temperatures of over 35-37 F (95-99 F) with isolated higher maximums are expected across the affected area July 26-27. Scattered showers and thunderstorms are expected to move into northern regions from July 28 and central regions from July 29, bringing some relief from the excessive temperatures. Officials have issued a level 1 warning of natural disaster risk due to the forecasted heat. Officials could update or expand the alerts over the coming days as conditions change.

The extended period of oppressive heat and dry conditions may produce ideal circumstances for wildfire growth throughout the region. Heatwaves also threaten vulnerable groups - such as the elderly, children, pregnant women, and those with respiratory illnesses - due to the increased possibility of heat stroke or heat exhaustion during prolonged exposure to high temperatures. These health risks could also extend to relatively healthy individuals during significant heatwave events. In addition to significantly impacting athletes and those who work outdoors, high temperatures can cause problems for people using mass transit. The lack of air conditioning and cramped vehicles during rush hour may lead to some passengers' hospitalization.

Very high temperatures may damage road surfaces, and overheated vehicles may worsen traffic problems in urban areas where congestion is already a problem. Commercial trucking disruptions might occur, as very high temperatures put more stress on vehicles, making tire blowouts more common. Major flight disruptions are unlikely at regional airports, but general aviation disruptions are possible, and some airfreight carriers could reduce cargo loads. High temperatures could lead to an increased demand for electricity, which might trigger localized brownouts or blackouts, exacerbating hazardous conditions when air conditioning is no longer possible.