The sister of missing five-year-old April Jones has issued an appeal for information saying "that someone knows something but won't say it makes me feel even worse.
16-year-old Jasmine Jones told Sky: " I just want our beautiful princess home now. It's been too long."
Her comments came as police revealed they have had over 2,500 calls from members of the public with information.
Superintendent Ian John, from Dyfed Powys Police, said he was "heartened" and "humbled" by the support.
"All in all, we've had outstanding co-operation from members of the public, not just from this community. It quite takes you away really, it's quite a humbling experience," he told a press conference.
However he repeated the need for "specialised" search teams to complete the task.
"The weather has now turned against us. This is why it is critical to get people who are skilled to help in this hostile environment."
Wearing a pink ribbon in support of a campaign by the five-year-old's family, Mr John said investigators remain "determined" to find the little girl, who has been missing since Monday.
Mr John said it was important to remember April's family throughout the search.
"I want to turn to April's family. I'm sure we all are feeling for them at this terrible time, also the friends and the extended family." he told Thursday's press conference.
"I just want to remind everybody that's why we're here tonight, in the pouring rain in Machynlleth, is to focus on the search and do everything that we can to bring this operation to a conclusion."
He added: "I think what we've got to hold on to is that we continue our search, and the good news is that everybody is determined to follow this through."
The search grows ever more urgent as detectives confirmed missing April has cerebral palsy and will be in pain without her medication.
It was revealed that the girls' father Paul has a degenerative eye condition and has not been able to take part in the searches.
On Wednesday, April's mother Coral appealed for more information.
"We are desperate for any news. April is only five years old. There must be someone out there who knows where she is. Please, please help find her," a tearful Coral Jones said.
The appeal came as prime minister David Cameron issued a heartfelt appeal for information.
He said: "My heart just goes out to April's family.
"This is every family's nightmare, having this happen and the fact that she suffers from cerebral palsy, something I know a little about from my own children, only makes this worse.
"My appeal would be to everyone, if you know anything, if you saw anything, heard anything, have any ideas you can bring forward, talk to the police, help this family find their lovely child."
Pictures of police searching the three-bedroom cottage of suspect Mark Bridger emerged on Thursday. Specialist teams have also been combing the area along the River Dyfi.
The force has been granted until 5pm on Friday to continue questioning the 46-year-old, who has been arrested on suspicion of abduction.
Detective Superintendent Reg Bevan appealed for information from anyone who saw Mr Bridger or his blue Land Rover Discovery, registration number L503 MEP, between 6.30pm on Monday and 3.30pm on Tuesday.
He said: "We will continue to piece together his movements during the relevant times and look to overlay his account with that we've gleaned from witnesses, sightings and the other inquiries that we are conducting."
Mr Bridger has young daughters who are known to have played with April in the area where she was snatched, near her home on the Bryn-y-Gog estate where she lives with her mother Coral, 40.
The two girls, believed to be aged seven and 10, live less than 200 yards from April's home.
Both girls have a step-sister who is the same age as April and who also regularly plays with her.