Another heat wave is expected to develop in the region this week. High temperatures should reach into the upper 90s by the middle of the week and near 100 degrees. Only a slight chance of rain is in the forecast for Thursday. The latest 6-10 day and 8-14 day forecasts are indicating above-average temperatures and below-average rainfall. Normal highs for mid June are in the middle 80s. Most area banks and post offices will be closed on Monday for the Juneteenth observance. June 19th is the newest federal holiday, which falls on a Sunday this year. There will also be no mail delivery on Monday. Most banks and post offices will reopen for business Tuesday. Juneteenth became a federal holiday a year ago, honoring the end of slavery in America. The U.S. Department of Labor's Mine Safety and Health Administration is proposing nearly $1.2 million in civil penalties to a Macedonia coal mine operator. Media reports say the operator, M-Class Mining LLC, continued to operate the mine without