Thirteen of the dead and 26 of about three dozen people wounded in Thursday's flash floods were middle school children, officials said.
The Civil Defence Department (CDD) said it was no longer sure on the number of those missing, indicating that 44 students and teachers from a private school in Amman were swept away with the water, in addition to an unidentified number of families at the site.
At least 34 people were rescued in a dramatic operation involving helicopters, marine divers, swimmers and boats, according to the Jordan Times website.
The flooding carried people for "four to five kilometres", Sharaa said, while some survived by clinging to rocks. "IAF helicopters full of IDF search and rescue soldiers have been deployed", the IDF said in a statement.
At least 10 school children have died and 16 are still missing, rescuers said.
The storm system that triggered the heavy rainfall and flooding will depart the region on Friday, with dry weather in store for continued cleanup and rescue operations this weekend.
"The teachers tried to save the children but the floods intensity made it impossible", he added saying the children were swept to the shores of the Dead Sea, the lowest point on Earth.
The low-lying Dead Sea area, part of the Jordan Valley, is prone to flash flooding when rain water rushes down from adjacent hills.
A bridge on one of the cliffs of the Dead Sea had collapsed with the intensity of the rains, the first such heavy rains after the end of the summer season.
A general view shows the location of the accident where people were killed in a flash flood near the Dead Sea, Jordan, Thursday, Oct. 25, 2018.
"There was a school field trip to the area with 37 students and seven supervisors", Brig.
King Abdullah II cancelled his scheduled trip to Bahrain following news of the flooding, and in a later tweet thanked surrounding Arab nations, including Egypt and Saudi Arabia for its condolences.