More than 520,000 hectares have been lost to fires in the US 4:35
(CNN) -
The latest heat wave to hit the US is here, with temperatures and heat indices above 37 degrees Celsius across the country.
The heat will last until next week as a high pressure system moves across the country.
This huge high pressure crest will continue to build up in the US through the beginning of the week, generating heat advisories, excessive heat advisories and excessive heat alerts across the country.
Heat alerts extend from the Pacific Northwest to Louisiana's Gulf Coast on Monday, affecting more than 35 million people.
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More heat for the Northwest
The Pacific Northwest has experienced extreme temperatures this summer as unprecedented heat waves brutally hit the region, exacerbating exceptional droughts and massive wildfires.
"In the northwest, there is an excessive heat advisory in parts of Idaho, eastern Oregon and the northern high plains, where temperatures are rising to 37 degrees through Monday," the Weather Prediction Center said.
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Temperatures will peak Monday at 37.7 degrees, but could be limited due to coverage of wildfire smoke.
Idaho currently leads the country in the number of large wildfires with 23 currently active, burning more than 77,000 acres.
"The smoke limited the high temperatures yesterday and will do the same today as the HRRR smoke model keeps the entire county warning area filled with smoke until at least Tuesday, primarily due to the Dixie fire in California," the Service said. National Weather Service (NWS) in Boise, Idaho.
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This round of heat will be short-lived as much-needed monsoon moisture moves north from the desert southwest into the Great Basin, cooling temperatures to as low as 32 degrees Celsius by Tuesday and providing slight relief from the scorching heat. terms.
Daily record high temperatures are in jeopardy in southern Montana and northern Wyoming on Tuesday.
Elevated fire danger remains a concern Tuesday for eastern parts of Montana, where relative humidity values could be as low as 10% and windy conditions will persist Tuesday, along with heat of over 37 degrees Celsius.
Montana already ranks second in the nation for burning large wildfires, just behind Idaho.
Relief from warm conditions could come Thursday as some of the monsoon humidity moves into the region, but widespread rains are unlikely.
The peak of above-average temperatures in Montana will be Tuesday.
Generalized high temperatures will cover Montana, North and South Dakota, Wyoming and Nebraska.
"Temperatures will remain well above seasonal normals for at least the next weekend," said the NWS in Glasgow, Montana.
High temperatures above 32 and 37 degrees Celsius sweep across the US on Thursday.
Heat travels east
In the middle of the week, the higher temperatures begin to move towards the central United States.
South Dakota, Nebraska and northern Kansas will see temperatures 7 to 12 degrees above average.
"The warm temperatures above, coupled with the ongoing drought, should create highs of 32 to 37 degrees Celsius," said the NWS in Aberdeen, South Dakota.
Heat advisories are in effect through Thursday for parts of South Dakota, southern Minnesota, Iowa and Nebraska due to high temperatures and heat index values of up to 43 degrees Celsius.
An excessive heat watch is also sweeping across southern Minnesota and central Iowa on Wednesday.
The high pressure ridge will center over the southern plains by the end of the week, weakening slightly but still pushing heat indices above 37 degrees.
Heat advisories already cover nearly the entire state of Louisiana along with parts of Texas, Oklahoma, Arkansas, Mississippi and Tennessee on Monday.
Temperatures will warm as the week progresses.
The heat wave will make a near-cross-country excursion, hitting southeastern Oklahoma and Arkansas across the Texas Gulf Coast on Sunday when the ridge parks over the area.
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"The extended pattern looks very HOT, with high temperatures between 32 and 37 degrees Celsius, and heat index values of 40 to 43 degrees possible for most of the region early next week. Make sure you take the necessary precautions. for prolonged exposure in the heat and know the signs of heat-related illnesses, "said the NWS in Little Rock, Arkansas.
Relief could come early next week due to a cold front pressing in from the north and bringing cooler temperatures to the region.
Heat wave
