A doomsday-obsessed Idaho woman who believes Jesus is returning in “July 2020” has been arrested in Hawaii for deserting her young children — who have both been missing for five months, police said.

Lori Vallow, 46, was ordered held on $5 million bail as authorities search for her two kids, 17-year-old Tylee Ryan and 7-year-old Joshua “JJ” Vallow, who vanished from their Idaho home in September, according to the Kauai Police Department.

Vallow had been given until Jan. 30 to produce the youngsters — and she’s now staring down charges including two felony counts of desertion and nonsupport of dependent children.

Relatives have said they fear that the mom’s ties to a radical doomsday group pushed by her husband, Chad Daybell, may be related to their kids’ disappearance.

The children went missing in September while the family was living in Idaho, according to reports.

Vallow reportedly believes she is “a god assigned to carry out the work of the 144,000 at Christ’s second coming in July 2020,” Chad’s lawyer wrote in court papers from February 2019 as he sought a divorce.

The case includes a number of bizarre twists, including how in July 2019, Lori’s brother, Alex Cox, shot dead her then-husband, Charles Vallow, in Idaho. Cox himself then died in December. His cause of death is still under investigation. Lori married Daybell in November.

In a 14-page court affidavit unsealed Thursday, Rexburg, Idaho, Detective Ron Ball claimed Lori was a flight risk and accused her of lying to police when she said on Nov. 26 that JJ was in Arizona with a friend, according to Fox News.

Vallow appeared in a Kauai courtroom Friday, where a judge confirmed her bail and set her extradition hearing for March 2.

Cops said in court papers she was a flight risk who has “significant financial resources” since Daybell had gotten a $430,000 insurance payout from the death of his former wife, Tammy, according to Boise’s NBC affiliate.

Meanwhile, family members said Friday they are thrilled that Lori has finally been arrested in the kids’ disappearance.

“I do feel hopeful,” the kids’ aunt, Annie Cushing, told “CBS This Morning” when asked if this might finally lead to the kids’ whereabouts.

But, she said, “I do think it could feel premature to feel confident.”

The kids’ grandparents, Kay and Larry Woodcock, told Hawaii station KHON-TV of Lori’s bust, “Our family is elated. We knew it was coming. We just didn’t know when . . . There’s still more work to do. We’ll never give up trying to find JJ and Tylee.”