A friend of ours reports:

Thought you'd like this: Just got a confirmation email for a seminar I've registered for. From that email:

LOCATION: The seminar will be held at the Oregon Convention Center in Portland (777 NE Martin Luther King Jr. Blvd.), in Room D138-140 (located on Level One of the Oregon Convention Center).

Please be aware that the temperature in the rooms at the convention center can vary, so we recommend that you dress "in layers."

I hope the new Convention Center hotel will have proper HVAC.