BALTIMORE (WJZ) — Scorching temperatures can not only be uncomfortable but also dangerous.

Monique Griego reports health leaders Sunday are issuing a code red alert and stiff warnings.

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Health leaders say the Code Red is a reminder for everyone to take precautions during the day.

Crowds at the Inner Harbor brave intense heat, as temperatures in Baltimore soar past 90 degrees. And with several days of scorching temps in the forecast, city health leaders are issuing the first code red alert of the season.

“Code Red is a way for us to signal: ‘we need to alter our habits,'” said Dr. Oxiris Barbot, Commissioner of Health, Baltimore City. “So code red reminds people to stay cool, hydrated, stay in touch.”

Health leaders say when it’s this hot, any outdoor activities can be dangerous.

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In Howard County, this week marked the first heat-related death. And two babies died in separate incidents after being left in hot vehicles.

“Even if it’s not a Code Red day, the heat builds up in cars. And unfortunately, we see tragedies like we saw recently,” Dr. Barbot said.

On Saturday, health officials say nearly half of all emergency room visits were heat related. Doctors are warning everyone to limit outside activity, stay hydrated and check on the most vulnerable.

“Those that don’t have the ability when they feel overheated to get up and to go to the sink and get a drink of water. Those who are living in areas that don’t have air conditioning,” said Dr. Waseem El-Halabi, Sinai Hospital.

Because of the heat, the city has opened cooling centers. You can always call 311 for more information.

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Health leaders also say people should avoid caffeinated and alcoholic beverages while outside in the heat.