Ridge of high pressure will cause a rise in temperature in most of the western United States, from Arizona and California, north to the border of the United States and Canada, according to Weather Space.
It can also bring the first monsoon storms in the region, as it captures the abnormally large ridge of high pressure. Temperature of 38 C in the Phoenix will rise to +46, + 49 C along the Colorado River Valley.
This range is very large in size, causing the temperature will be 8-10 degrees higher than normal in Arizona, California, Oregon, Washington, Idaho, New Mexico and Utah. Other areas such as Montana and Wyoming may be in the colder outer periphery of the dome heat.
In this case, the heat will bring monsoon moisture in California, Nevada, Arizona, New Mexico and Utah. There are signs that the reign of the hot air will last about a week.