The mother of two young women believed to be trapped in a landslide in southeast British Columbia is waiting for word while search efforts remain suspended for fear of further slides.

"My family needs everyone's prayers," Lynn Migdal posted on Facebook from Delray Beach, Fla.

Her daughters, Diana Webber, 21, Rachel Webber, 17, and her ex-husband, Valentine Webber, are unaccounted for, as well as another woman.

Three homes were destroyed in the massive slide just after 11 a.m. Thursday near the remote village of Johnsons Landing on Kootenay Lake.

Dozens of well-wishers shared messages of support on Migdal's Facebook wall.

"My thoughts and prayers are with you and your family Lynn. If I can be of any strength to you, I am here for you," wrote Michele Goren.

A spokesman with the Central Kootenay Regional District said the ground search near the remote area has not resumed since Thursday night due to ground instability.

"The slide area is unstable and debris is coming down, so no one can be working below where the instability is," spokesman Bill Macpherson said Friday.

Officials don't know when the search will resume. However, crews from Vancouver's Heavy Urban Search and Rescue did an aerial analysis of the area to try determine when that could be.

The search may be delayed further due to rain in the forecast, said local MLA Michelle Mungall on Friday afternoon, who has been in contact with emergency personnel.

"That instability and weather forecast makes things very scary and very sad," she said. "This is hugely shocking and everybody's world in the Johnsons Landing area changed within 40 seconds."

Resident Richard Ortega said the mud and debris swept down Gar Creek, flattening homes and blocking road access to the village. As a result, the area can only be accessed by air and boat.

Homes have been broken into pieces, buried beneath mud and trees that swept down the mountainside.

About 35 residents live in the village on the northeast shore of Kootenay Lake.

Crews are working to restore water and power to the area.

Some residents have been moved to the nearby community of Kaslo.