State police have expanded their search for a Berks County man suffering from Alzheimer's who went missing nearly a week ago.

Richard Jordan left his home at 1342 Garfield Rd. in Centre Township sometime between 5:30 a.m. and noon last Thursday, police said.

"I've been out day and night," said Jim Lemma, Jordan's son-in-law.

Family members are a frazzled wreck. Jordan, 77, is in the late stages of Alzheimer's disease and he's also battling dementia, so he may not know his own name. On Thursday, during a powerful snow storm, he wandered away from his home.

"It's very uncharacteristic and unlikely that he would be doing this wandering thing out in a snowstorm and freezing cold temperatures," said Lemma, who added his father-in-law hates the winter and retired in Florida.

Jordan moved in with his daughter and son-in-law in July 2012 after his health declined. He went missing once before during the past summer. Since then, Lemma said they installed alarms on the doors and Jordan now wears a GPS tracker watch, but it was charging Thursday morning after the battery died. Lemma also said they never heard the alarms Thursday morning.

According to state police, officers have gone door-to-door around his neighborhood and searched everywhere. On Tuesday, they expanded their search and sent his information outside Berks County. Jordan is described as a white man standing 5 feet, 8 inches tall and weighing 150 pounds. He has short gray hair and was clean-shaven.

"As many people as we can get his picture and the information to is beneficial to us," said Tpr. David Beohm, Pennsylvania State Police, who added they are concerned because Jordan was not dressed for the weather conditions.

Lemma said he was wearing a light tan jacket, blue pajama bottoms and slippers. Several sightings have been reported, but nothing concrete. Last week police urged residents in the area to check their sheds, garages and around their properties for Jordan.

"We looked under our porches, we looked everywhere we could," said Lyn Delcamp, who lives a few houses down.

"Everyone has been taking steps to try and find this guy," said Alex Malovicky, who also helped search his home.

Jordan's family is pleading for everyone to check their property again and call police immediately if something doesn't look right.

"That's one of the only real hopes that we have he's still OK is that he got out of the weather," said Lemma.