During excessive heat warning, be aware of the symptoms of heatstroke and heat exhaustion

As the temperature rises, so does the risk of heat-related illnesses, like heat exhaustion and heatstroke. It’s important to recognize the signs and symptoms of heat illnesses, and learn how to prevent them.

Heatstroke signs and symptoms include:

• High body temperature. A core body temperature of 104 F (40 C) or
  higher, obtained with a rectal thermometer, is the main sign of heatstroke.
• Altered mental state or behavior. Confusion, agitation, slurred speech,
  irritability, delirium, seizures and coma can all result from heatstroke.
• Alteration in sweating. In heatstroke brought on by hot weather, your skin
  will feel hot and dry to the touch. However, in heatstroke brought on by
  strenuous exercise, your skin may feel dry or slightly moist.
• Nausea and vomiting. You may feel sick to your stomach or vomit.
• Flushed skin. Your skin may turn red as your body temperature increases.
• Rapid breathing. Your breathing may become rapid and shallow.
• Racing heart rate. Your pulse may significantly increase because heat
  stress places a tremendous burden on your heart to help cool your body.
• Headache. Your head may throb.

Symptoms of heat exhaustion may start suddenly or progress over time, especially with prolonged periods of exercise. Possible heat exhaustion symptoms include:
Cool, moist skin with goose bumps when in the heat.

• Heavy sweating.
• Faintness.
• Dizziness.
• Fatigue.
• Weak, rapid pulse.
• Low blood pressure upon standing.
• Muscle cramps.
• Nausea.
• Headache.