Omega Block Weather Ends in the Eastern United States, Allowing Return of Warm Temperatures

Omega block weather has started to dissipate in the Eastern United States after causing rainy, dreary weather conditions on West Coast and Northeast, as well as warm temperatures in the Central U.S., throughout the week. T

he latest U.S. weather forecast indicated that the "omega block weather pattern" will move off the coast, allowing spring temperatures to return along the U.S. East Coast.

Omega Block Weather Pattern

The omega block weather pattern has ended already, which can then bring warmer temperatures to the eastern half of the U.S., according to a video report by Fox Weather, which predicted that the temperatures will rebound along the U.S. East Coast as the block disintegrates into the weekend.

Fox Weather forecasters said spring weather and sunshine will return to the eastern U.S. until next week starting at least on Sunday, May 7, with temperatures ranging between 66 and 81 degrees Fahrenheit.

Cities like Portland, Boston, and New York City will be among to experience the return of calm weather along the region.

In recent days, U.S. meteorologists forecasted that the weather pattern will dominate the country this week, bringing cool weather from coast to coast while causing dry conditions in the middle, The Weather Channel said.

What is an Omega Block?

The meteorological term omega block is not new.

In fact, this weather phenomenon has been used by meteorologists and forecasters to describe a "blocked weather" caused by almost stationary air pressure systems.

For instance, weather fronts that move from west to east across the United Kingdom sometimes stay where they are, usually due to a blocked weather or block.

This is according to the Meteorological Office (Met Office), which explains that a large area of high pressure remains nearly motionless over the same area, preventing weather fronts to move beyond it.

Now, for its name "omega," the Met Office explains that it was named as such due to the pattern or shape they form that resembles the ancient Greek uppercase letter omega.

Within this pattern, two low-pressure systems are pinning down the high-pressure at the center.

Furthermore, the weather becomes blocked due to the influence of a weak jet stream or narrow bands of strong winds.

North America Omega Block

An omega block can occur in warm and arid regions of Earth, typically those along the tropical and equatorial latitudes.

The extreme weather pattern could even transpire in places known for having relatively cold temperatures.

In North America, an "omega block heat dome" hovered over Canada and the U.S. in June 2021, causing severe heat in the Pacific Northwest and the Pacific coast of Canada, a story covered by Nature World News.

In 2016, an omega block became the source of heat in Canada, fueling even wildfires.

In the case of North America, the block is affecting weather in the eastern Pacific Ocean and eastern North America, including most parts of the U.S. East Coast, The Washington Post reported.