Multnomah County officials said that 325 people slept on mats in one of three cold weather shelters open Tuesday night.

After County Chair Jessica Vega Pederson declared a state of emergency today, the county medical examiner disclosed that a man died of hypothermia on Sunday in a zip code at Portland’s southwest edge. The low temperature that night was 37 degrees, well above the county’s threshold for opening warming shelters.

As temperatures in Portland plunge below freezing, Multnomah County officials announced that three severe weather shelters will open to accommodate those facing the bitter cold. Read online:

With freezing cold rain and a chance of snow predicted for Tuesday night, cold weather shelters will open in Multnomah, Clackamas and Washington counties. This is the first time overnight warming shelters will open in Multnomah County this year,