The National Weather Service in Portland has issued a Heat Advisory...which is in effect from 10 AM to 8 PM PDT Wednesday. * TEMPERATURES...Record high temperatures of 80 to 90 are expected Wednesday. The hottest temperatures are expected away from the beaches. Temperatures will cool into the 70s Thursday. * TIMING...Wednesday will be the hottest day. Cooler temperatures are expected to arrive by Thursday morning. * IMPACTS...The elderly, people without access to air conditioning and anyone engaged in prolonged outdoor activities will be be particularly vulnerable during this heat episode. Local power demand is expected to be at high levels. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Heat Advisory means that a period of hot temperatures is expected. Hot temperatures will create a situation in which heat related illnesses are possible. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sunshine, and check up on relatives and neighbors. Take extra precautions, if you work or spend time outside. When possible, reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear light weight and loose fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency, call 9 1 1. Young children and pets should never be left unattended in vehicles under any circumstances, even for short periods of time. This is especially true during warm or hot weather when car interiors can reach lethal temperatures in a matter of minutes.