An early season heat wave will cause western weather to rise above 100 ° F

A tremendous heat wave will take hold of the western United States over the next week as a vast ridge of high pressure builds up across the region. Temperatures will exceed the 100 ° F mark as far north as eastern Washington during the heat peak, with temperatures close to 110 ° F possible in some communities in the Central Valley of California earlier this week.

A wavy jet stream will set the stage for the heat dome that will be built over the western United States this week. Steep ridges at the top level are often the catalyst for intense heat waves, as air flows under the ridges. The flowing air heats up as it descends towards the ground, intensifying the heat of the late spring sun.

the National Meteorological ServiceThe latest forecast is that extreme heat is building up over the lower elevations west of the Rockies and away from the Pacific coast. High temperatures above 105 ° F are likely in the Central Valley of California every day from Sunday to Wednesday, with peaks of up to 110 ° F in some places. Triple-digit readings will push further north into southwestern Oregon, eastern Washington and southern Idaho by Wednesday.

While many cities in the west are used to hot weather during the summer months, such an intense heat wave is unusual so early in the season.

The NWS predicted maximum temperature Wednesday of 101 ° F in Walla Walla, Wash., Would be the city’s second oldest reading at or above 100 ° F since records began at the airport there in 1949. in Sacramento, Calif., would register as the third oldest reading above 105 ° F since regular record keeping began in 1948.

Excessive heat warnings are already in place for the duration of the heat wave in the Central Valley, and it is likely that more heat alerts will increase for locations with high temperatures forecast in the coming days.

Even though it is going to be relatively dry heat, overworking when the air temperature is this hot can quickly lead to heat-related illnesses like heat exhaustion and heat stroke. Extreme heat is an underestimated safety risk, even in people who are otherwise healthy and fit.

Such an intense heat wave will exacerbate an already precarious drought situation in the west. The region is mired in one of its worst droughts in recent memory, which is quite an achievement given the droughts of the past decade. Arid lands, high heat and scant landforms leave all experts concerned another potentially historic wildfire season over the next few months.


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