The work week ended on the extra steamy side in the Southern Plains, with many areas seeing high temperatures in the triple digits.  On Thursday in Texas, Galveston set a record high temperature of 95 degrees.  Houston reached the century mark for the first time this year.  The heat and humidity will continue across the southern states this weekend and into the week ahead. The combination of hot temperatures and high humidity will combine to create a situation in which heat illnesses are possible.  Drink plenty of fluids, stay in an air-conditioned rooms, stay out of the sun, and check in on relatives, neighbors, and pets.  Take extra precautions if you work or spend time outside.  When possible, reschedule strenuous activities for the 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.   Sweltering temperatures are set to eclipse 100 degrees again on Sunday, with the heat index hitting 105 to 110 in some areas.  The intense heat and humidity will continue for many into the new work week.     A big ridge of high pressure continues to sit over the Southern Plains.  It creates a large area of subsidence or sinking air.  As the air sinks, it compresses and warms, creating the heat over the region. Not only will temperatures remain above average, humidity values are expected to remain seasonably high.  That will make temperatures feel a few degrees warmer than the actual air temperature.  Cities like San Antonio should brace for the continued toasty conditions. For many Texas cities, this time of year is when thermometers often reach the century mark.  Days with 100-degree high temperatures will continue to add up. Get your local and regional forecasts by clicking HERE.