 Heat advisory continues until 8 o'clock as our temperatures will slowly fall through the 80s, but those heat index values will stay in the 90s for most of the evening. Tomorrow we do it all over again. The National Weather Service has now issued an expanded heat advisory for not only Southern Maryland, the district, but all the way out to the I-81 corridor. That's tomorrow noon until 8 p.m. Feels like temperatures 100 to 105, even hotter than that in some locations.