Sanjeev Rai flew to Nepal to search morgues and hospitals for his wife, Jyoti Rai, a 50-year-old Lexington mother. Jyoti has been missing since flash floods struck the Nepal-China border on Thursday, Aug. 27.

He is not searching alone. Manmeet Singh Meet, a Lexington neighbor and longtime friend, left Logan Airport on Saturday, Aug. 29, to join him. As of Sunday, Aug. 30, the two men were traveling to Kathmandu and planned to search the area around the hotel where Jyoti had been staying, the Boston Globe reported.

"I still leave 0.1 percent for a miracle," Meet told the Globe by phone on Aug. 30. "We are praying for that."

As we reported Aug. 29, Jyoti had traveled to Nepal on a spiritual pilgrimage to Mount Kailash in Tibet to celebrate her 50th birthday. She was part of a group of 40 guests and seven guides organized by Himalayan Glacier Adventure and Travel Company, a Baltimore-based tour operator. All 47 people in the group remain unaccounted for.

Jyoti called her family from breakfast in Timure, Nepal, at about 8:40 a.m. local time on Aug. 27. She told her husband she was getting ready to cross into Tibet through Chinese immigration, WCVB reported.

Minutes later, an avalanche triggered flash floods and mudslides that swept through the border region, destroying the Hotel Kailash where her group had been staying. Her last location on the Find My iPhone app was at that hotel.

Meet and Jyoti have been friends for 15 years, first meeting in India before both families moved to the Boston area. Their families live about a mile apart in Lexington. Meet told WCVB before his departure why he dropped everything to go.

"There are no ifs and buts. You don't think twice," he said. "You just go and you know you're there for each other."

Jyoti's two children, 22-year-old daughter Hunar Rai and a 15-year-old son, remain in Lexington with family friends while their father searches in Nepal. Jyoti, an engineer who worked at Intel for nearly 12 years, had been married to Sanjeev for 25 years.

As of Sunday, Aug. 30, roughly 2,500 people remained missing in Nepal, according to Nepal's foreign secretary, Amrit Bahadur Rai. Just over 8,100 people had been rescued, including 261 foreign nationals.

U.S. State Department spokesperson Tommy Pigott said Sunday that about 85 Americans remain unaccounted for and nine had been evacuated. He was not aware of any reported American deaths. A multinational search operation involving Nepal, India, China and South Korea has deployed more than 19,000 people and 16 helicopters.

On Saturday evening, roughly 200 members of the Greater Boston Nepali community gathered at Rivergreen Park in Everett for a candlelight vigil, lighting candles, praying and raising money for Nepal's Prime Minister's Disaster Relief Fund, NBC Boston reported.

Meet acknowledged to the Globe that Jyoti may not have survived but said recovering her body would allow her family to find closure and perform last rites. No confirmed update on Jyoti's status was available as of Sunday.