TUCSON, ARIZONA — More than six months after Nancy Guthrie vanished from her Tucson home, investigators are once again drawing attention to the area surrounding her residence.

The latest development has sparked fresh questions after FBI agents were reportedly seen back near Guthrie’s property following a period of heavy monsoon weather in southern Arizona.

The timing immediately caught attention.

Could the storms have changed the landscape?

Could floodwaters have moved debris?

Could something previously hidden have become easier to see?

Authorities have not publicly confirmed that investigators discovered new physical evidence because of the storms. But the renewed activity near Guthrie’s home has once again placed the neighborhood at the center of one of Arizona’s most closely watched missing-person investigations.

Southern Arizona’s monsoon season can dramatically transform the desert environment.

Heavy rainfall can wash away soil, move rocks and vegetation, expose areas that were previously covered and alter drainage paths through washes and undeveloped land.

For investigators searching for potential evidence, even small environmental changes can matter.

That appears to be one reason the area around Nancy Guthrie’s home has attracted renewed attention.

According to recent reporting, investigators returned to areas behind and around Guthrie’s residence after the monsoon weather moved through the region. The renewed activity has fueled speculation that authorities wanted to take another look at locations that may have changed since earlier searches.