170 Million Under Heat Alerts Jul 19, 2019

A heat wave is sweeping the nation, bringing sizzling hot temperatures and dangerously high heat indices to millions. On Thursday, several areas saw temperatures above the century point, with Denver setting a record high at 99.

Heat alerts dominate the Central and Eastern United States through the weekend. Highs will be well into the 90s, if not triple-digits, and dew points in the 70s.  The combination of hot temperatures and high humidity will result in heat index values near 110°.

[Related: WATCH: The Dog Days of Summer are Here]

For many across the Plains and the Midwest, these will be the hottest temperatures so far this year.

Not only will these be some of the hottest conditions in quite some time, it will be potentially record-breaking for some cities. Take a look at the potential records for the end of the work week.

The Northeast will also get in on this extreme heat.  The ridge of high pressure currently situated over the central U.S. will shift farther to the east. This allows the heat to build across the Eastern Seaboard heading into the weekend.

Temperatures skyrocket into the upper 90s by Friday and Saturday. Some spots will even hit 100 degrees or more.

Several records may fall across the Northeast on Saturday.

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 and neighbors. Take extra precautions, if you work or spend time outside. When possible, reschedule strenuous activities to 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.

Stay cool and safe! Download the WeatherNation app for Apple and Android devices to get your local forecast on the go!

-Meteorologist Viki Knapp

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