This is the heartwarming moment soldiers rescued an elderly woman who was trapped by floods in southern Thailand.

Footage shows the troops carrying the bedridden resident from the swamped ground floor of her home in Yala province on November 27. They bundled her up in a blanket and took her to the second floor where it was dry.

Lieutenant Chainarong Nasuwan said: ‘Helping a bedridden grandmother escape the flood to the second floor. Stay strong, grandma. This year, the water came quickly. May everyone stay safe.'

The grateful pensioner then thanked her rescuers by pressing her hands together in a praying gesture.

Torrential rain has been pounding Yala, near the border with Malaysia, causing widespread flooding that has caught many residents off guard. 

The flash flood left people stranded in their homes with little time to evacuate.

The Thai Meteorological Department (TMD) on November 27 issued a weather advisory warning of heavy rainfall in the South, strong winds and waves over the lower Gulf of Thailand, and cool to cold weather in the upper part of the country.

The department reported that a moderate to strong high-pressure system from China would extend over upper Thailand and the South China Sea.

The northeast monsoon prevailing over the Gulf of Thailand and the South was expected to strengthen, while an active low-pressure cell over the lower South China Sea would move through the lower South and Malaysia into the lower Andaman Sea.

Heavy to very heavy rains were predicted in several southern provinces, including Yala.

TMD urged residents in affected areas to be cautious of flash floods and overflows, especially near waterways, foothills, and low-lying areas.

The strengthening winds were expected to cause waves in the upper Gulf and the Andaman Sea to reach about 6.6 feet (2 metres) and exceed 6.6 feet (2 metres) in thundershowers.

In the lower Gulf, waves were forecast to rise between 6.6 and 9.8 feet (2–3 metres), exceeding 9.8 feet (3 metres) in thundershowers.