A heat advisory remains in effect for eastern Oklahoma and western Arkansas through tonight. High temperatures in the mid-90s to 100 are forecast this afternoon. The temperatures, combined with high humidity, will create dangerous heat index values in the 100 to 113 degree range. Temperatures Sunday should be cooler, and there’s a chance for showers and storms to move into the region in the evening. Storms could continue Monday if the cold front stalls out in the area.