“Bomb Cyclone”, nor’easter and other severe weather will unfold this week in the United States

Santa Barbara County officials have improved the recent evacuation warning to a evacuation order for parts of the Alisal Fire burn area. Concerns are growing about the development of dangerous debris flows, as heavy rains are expected to fall on the recently scorched earth.

Evacuation orders mean it is illegal to stay put, with an immediate threat to life and property.

The threats associated with this atmospheric river do not end there. Several meters of snow are forecast for the Sierra Nevada mountain range, creating nearly impossible driving conditions, according to the National Weather Service (NWS) office in Hanford, California.

Expect significant travel delays as chain checks and road closures will likely be enforced. The heaviest snowfall will occur Sunday evening through Monday and will be most abundant at elevations above 5,000 feet.

Strong winds with gusts of over 50 miles per hour will accompany the heavy, wet snow.

Rainfall forecast until Wednesday.

The NWS monitored flash floods over a large area of ​​central and northern California. Rainfall accumulations of 3 to 6 inches, with locally higher amounts exceeding 10 inches, will result in localized flash floods, mudslides and landslides.

Particularly vulnerable roads and waterways are most threatened by this event, as heavy rains are expected to last until Monday.

A tornado outbreak is possible until Monday

Bad weather is possible at the beginning of the week for a large part of the country.

A temperature battlefield sets the stage for an outbreak starting Sunday across the Mississippi Valley that will move east into the Carolinas and mid-Atlantic states by Monday.

Tornadoes, large hail and damaging winds were reported through Sunday evening in parts of Arkansas, Missouri, Illinois and Indiana.

However, the Storm Prediction Center has identified a specific area from St. Louis to Springfield, Missouri, as posing a significant threat to tornadoes. This region has a greater than 10% probability of a strong tornado (EF-2 to EF-5) within 25 miles of a particular point.

Fall is generally considered a secondary peak season for severe weather in the United States.

Large variations in temperature associated with changing seasons can help fuel the development of severe weather phenomena. Although tornadoes can occur at any time of the year, autumn typically sees an increase in activity as warm, humid southern air interacts with increasingly powerful cold fronts from the north.

Weather models hint at possible northern Easter midweek

The same energy associated with the severe weather epidemic will translate into a powerful depression known as the Northeast along the US east coast by Tuesday and Wednesday.

Conditions seem favorable for the development of strong northeast winds, hence its name. Coastal flooding and heavy rains are also possible in southern New England.

The specific details of the forecast are still unknown, as this event is still several days away, but there is potential for urban and street flooding. Some computer models predict more than 6 inches of rain for the region.

As fall leaves have not yet fallen across much of New England, gusty winds could easily topple trees and branches. This can potentially lead to power outages in the area.

About Jefferey G. Cannon

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