The Desert Southwest and Great Basin saw record heat on Tuesday, and today won`t be any different. A final punch of blistering heat will jeopardize more records today with temperatures climbing as high as 125 degrees.

A massive bubble of high pressure centered along the Rocky Front Range will continue to transport extremely hot temperatures northbound into the Southwest and Great Basin today. The thermometer will peak close to 125 degrees in the interior southern California and Arizona deserts, with 100s reaching as far north as southeastern Oregon and far southwestern Idaho.

Excessive Heat Warnings continue for the Sonora and Mojave deserts, as well as the higher elevations of southern California, and southern California's interior valleys. This includes Phoenix and Yuma, Ariz., Barstow, Baker, Burbank, Paso Robles and Palm Springs, Calif., Las Vegas and Death Valley. Heat Advisories remain in place for western Nevada and Washington`s Yakima Valley through Thursday. Temperatures this hot can bring on heat exhaustion or heat stroke within a matter of minutes.

In these extremely dangerous temperatures, it is best to avoid being outdoors. Stay hydrated by drinking plenty of water. Make sure to check on the more vulnerable groups, including pets, the homeless, young children and the elderly.

If you must be outdoor for any length of time, take these preventative maintenance tips when dealing with such dangerous heat.

After record highs were shattered in the West on Tuesday, numerous record highs will again be at-risk of being broken today, including Las Vegas at 116 degrees, and Phoenix at 113 degrees. The race toward these numbers is already well underway, with Sin City climbing to 108 degrees so far, and Newberry Springs, Calif., reaching 112 degrees. Portions of the Maricopa Valley near Phoenix are up to 103 degrees.

The heat will be short-lived, as the high will move into the Plains by early this weekend. Winds will shift from the west, bringing cooler and more seasonable air into the interior West.

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