...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT TUESDAY... * WHAT...High temperatures of 95 to 100 are expected. Low temperatures will be mainly in the mid-50s to low 60s. * WHERE...Lake County and eastern Klamath County, South Central Siskiyou County, North Central and Southeast Siskiyou County, Northeast Siskiyou and Northwest Modoc Counties, Modoc County, and Klamath Basin. This includes Klamath Falls, Lakeview, Mount Shasta, and Alturas. * WHEN...Until 8 PM PDT Tuesday. * IMPACTS...An increased chance of heat related illness for those without access to cooling facilities. * ADDITIONAL DETAILS...Warm overnight temperatures will limit relief from hot daytime temperatures. Hot temperatures are likely to continue into mid-week. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. &&