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09 May 2023 | 10:43 AM UTC

Thailand: Adverse weather forecast across much of the country through at least May 14

Severe weather forecast across much of Thailand through at least May 14. Possible transport, business, utility disruptions.

Warning

Event

Adverse weather is forecast across much of the country through at least May 14. As of May 9, the Thai Meteorological Department has issued a weather warning for outbreaks of summer storms in northern and central regions May 9-10. Areas that may be affected by storms include most provinces across northern, northeastern, central, and eastern Thailand. Gusty winds, lightning, and hail are possible during thunderstorms. Further storms and heavy rainfall are possible across Thailand, including southern regions, May 11-14 due to a low-pressure system in the Bay of Bengal which could develop into a tropical cyclone as it moves toward the coast of Myanmar.

Strong winds could fell trees and power lines as well as cause damage to unsecured infrastructure. Flooding and landslides are possible in areas where thunderstorms produce intense rainfall. Large waves are forecast in the Andaman Sea through May 14. Officials could update and possibly extend the coverage of the relevant weather alerts over the coming days.

Hazardous Conditions
Thunderstorms could produce rounds of heavy precipitation, strong winds, and isolated thunderstorm activity. In areas where sustained rainfall occurs, flash and areal flooding are possible. Such flooding is possible in low-lying communities near watercourses and other large bodies of water, as well as in urban areas with easily overwhelmed stormwater drainage systems. Sites located downstream of large reservoirs may be subject to flash flooding after relatively short periods of intense rainfall. Landslides are possible in hilly or mountainous areas, especially where the soil has become saturated by heavy rainfall.

Transport
The severe weather could contribute to transport disruptions throughout the region. Traffic and commercial trucking delays might occur along regional highways. Flooding downpours could inundate some low-lying roads in areas with poor drainage. Strong winds might also pose a hazard to high-profile vehicles. Hazardous weather conditions might cause flight delays and cancellations at airports across the affected region.

Advice

Seek updated information on weather and related disruptions, including road conditions, before driving or routing shipments through areas where severe weather is forecast. Plan accordingly for potential freight delivery delays if routing shipments by truck through the affected area. Do not attempt to drive through flooded areas. Charge battery-powered devices if prolonged electricity outages occur.

Resources

Thai Meteorological Department