PITTSBURGH (WPXI) — Another very hot day is expected Sunday with high temperatures in the 90s again. The heat and humidity could cause heat related illnesses as heat index values are expected to climb to 101 degrees. A Heat Advisory goes into effect from noon to 8 p.m. People should stay indoors and try to stay in an air conditioned space if possible. If you have to be outdoors, you’re urged to stay out of the sun and limit your time to early morning or evening when it will be cooler. You may want to check on your neighbors if they have trouble keeping their home cool and keep an eye on any pets. Double check when getting out of your car that you are not leaving kids or pets behind. It can turn deadly in minutes. Sunshine will be with the area through the morning. More clouds will build in during the second half of the day. A cold front will approach from the northwest, sparking showers and strong storms later in the day. The biggest threat with any storm that does pop up is damaging winds.