The National Weather Services has issued an Excessive Heat Warning for the District of Columbia which is in effect from 11am to 8pm Saturday, August 13, 2016. An Excessive Heat Watch has also been issued for Sunday, August 14th. The watch will be in effect from Sunday afternoon through Sunday evening. Expected temperatures for both days are around 100 degrees with Heat Index values ranging from 110 to 115 degrees. Impacts: There is a high risk of heat stroke or other heat-related illnesses for those individuals without air-conditioning or those outdoors for any extended periods. Precautionary Actions: Take extra precautions if you work or spend time outside. When possible, reschedule strenuous activities. Wear light weight and loose fitting clothing when possible and drink plenty of water. Never leave a child or pet in a parked car. Interior temperatures will rapidly exceed 130 degrees.Anyone overcome by HEAT should be moved to a cool and shaded location. HEAT STROKE is an emergency – CALL 911. An Excessive Heat Warning means that a prolonged period of dangerously high temperatures will occur. The combination of extreme temperatures and high humidity will create a dangerous situation in which heat illnesses are expected. An Excessive Heat Watch means that a prolonged period of dangerously high temperatures is possible. Prepare for extreme temperatures and high humidity which would create a situation in which heat illnesses are expected. Check in on relatives and neighbors.