Latest information on the storm’s course in California from the bomb cyclone and “Pineapple Express” tracker

The bomb cyclone and “Pineapple Express” trackers have provided the most recent information on the storm’s trajectory in California.


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California – Through Thursday, a strong bomb cyclone will batter the West Coast. An atmospheric river, which runs from Hawaii to California, is a small but dense feed of tropical moisture that the cyclone is drawing in. The Pineapple Express is the name given to this particular type of atmospheric river because its moisture source is located close to Hawai Intense lower-elevation rain and high-elevation snow will occur across the whole state of California as a result of the atmospheric river. One of the biggest storms to hit the state in recent years will be this one. the FOX Forecast Center’s maps below provide the most recent details on the storm’s progress across the state, including live weather alerts and power disruptions.

Where is the current California storm?
With the approach of a clearly marked warm front, rain and snow are currently in progress. Heavy rain will fall across the area as a result, but the worst of it—and the greatest risk of severe flooding—will come later in the day and last into Wednesday night and Thursday as the trailing cold front and a concomitant plume of plentiful moisture move onshore.


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What flood warnings are currently in effect in my area?
The additional water won’t have somewhere to go because the soils are saturated from the 3 to 12 inches of rain that fell in the last two weeks. As a result, multiple mudslides and flash flooding are anticipated. The Flood Watch affects more than half the state. Particularly in the Northern and Central California coast, significant and maybe fatal flooding is possible. There is a significant risk of debris flow in the vicinity of recent burn scars. Forecasts predict that rivers around the state will rise to flood status.

What wind alerts are currently in effect in my area?
California will experience extremely severe gusts due to the potent bomb cyclone. There are high wind warnings in effect because gusts of wind might reach 60 to 70 mph.

Will rainfall totals be surpassed?
There is a good chance that totals in the higher terrain will surpass 10 inches, with widespread accumulations of 2 to 4 inches of rain forecast. Even while rain is good in California, this will probably cost a lot of money.


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How much snow can we anticipate?
Travel conditions up in the mountains are becoming hazardous and will last into Thursday night Above 5,000 feet in elevation, extremely heavy snowfall rates of more than 3 inches per hour are almost guaranteed. Travel will become difficult, if not dangerous, as a result Across the Sierra Nevada, an additional 1 to 4 feet of snow are anticipated. The highest mountain summits in Southern California will rise by one to two feet.

What comes after this storm for California?
The tired cannot find rest. This weekend, another atmospheric river will hit the state, and a third, more potent one is predicted for next Tuesday and Wednesday. Each will usher in a fresh wave of hazardous flooding. In the northern regions of the state, up to 20 inches of rain may fall over the course of the upcoming week.

Do bomb cyclones differ from hurricanes in any way

Bomb. You cannot use that word in an airplane (cue Ben Stiller). Additionally, you need to use caution while describing a storm system using it. But occasionally, you will see the phrase “bomb cyclone” in weather-related articles. This is what it indicates:

Why is a storm called a bomb cyclone?
A storm that meets one crucial need and is rapidly strengthening is known as a bomb cyclone. In most cases, the pressure must decrease by 24 millibars (a unit of pressure) in a 24-hour period But that standard also takes the storm’s latitude into account. Therefore, depending on where the storm forms, the millibar need may change. But why is that its name The origin of the phrase can be found in a meteorological study paper that was printed in a Monthly Weather Review issue from 1980.Tor Bergeron, a Swedish meteorology researcher, had first classified “rapidly deepening” storms as ones that matched the 24 millibars-in-24-hours requirement, which was expanded upon by MIT meteorologists Fred Sanders and John Gyakum However, Bergeron was extremely high in Scandinavia, where the latitude causes storms to intensify considerably more quickly. The ground regulations were modified by Sanders and Gyakum to change according to latitude. Since these storms had explosive power due to quick pressure dips, the name “bomb” was added (though Gyakum allegedly no longer uses it due to its association with weapons).

How are the rules changed?
Since you’ve read this far, I feel obliged to offer you the equation; if you find it fascinating, you might want to think about a future in meteorology take the sine of the latitude where the low pressure is located and divide it by the sine of 60 degrees to determine the pressure drop required for a bomb cyclone Why sixty degrees? Bergeron created the original scale while he was at that latitude. The amount of millibars the storm’s pressure must decrease to be recognized as a bomb cyclone at the specified latitude is calculated by multiplying the result by 24.According to, 122,000 people in California were without power as of 5:45 p.m. on Wednesday due to a bomb cyclone event that was blowing up winds and pouring rain. Numerous power outages were found on the map across Northern California’s coastal counties and the San Francisco Bay Area. Customers are strongly advised to get ready for possible extended disruptions, PG&E stated on Twitter on Wednesday night.

Experts warn that many households would probably lose power, and it appears that hundreds already have, as a bomb cyclone promises to deliver high winds and heavy rain to the area over the San Francisco Bay Area in California. The general public is being advised by experts to be ready for the outages by keeping flashlights and batteries on hand, stocking LED candles, and maintaining fully charged telephones According to Megan McFarland, a PG&E employee, “the storm impacting our service area today and tomorrow is a different kind of storm.” The strong weather system will cause falling trees owing to soil saturation, flooding, mudslides and landslides, among other things. More than 11,200 people had been without power as of 1 p.m., she noted

The PG&E outage map displays sporadic power outages across several Bay Area counties: Up to 500 people may not have access to electricity close to Cotati, a community of 7,500 people in the North Bay; as of Wednesday morning, another cluster in Berkeley also appeared to be without power. Numerous outages are reported close to San Francisco, the East Bay, Cupertino, San Jose, and Cupertino. Representatives of the National Weather Service say that throughout the day, there may be even more According to Cindy Palmer, a NWS meteorologist, “strongest winds do really start to strike the area I’ll say anytime from the afternoon commute into this evening.” Up to 10 a.m. on Thursday, a high wind warning is in force for the entire Bay Area. Winds in the mountains could according to a press statement from PG&E on Jan. 3, nearly 500,000 people were left without power after the storm that hit New Year’s Eve last week; the flooding, mudslides, and road closures that are still present could make it more challenging for some people to get their electricity back on. How long it usually takes to restore power is unknown.

Angie Gibson, vice president of PG&E Emergency Preparedness and Response, stated in the announcement that “this weather system by itself would provide significant issues, and we have to consider in that many sections of our service region remain saturated after last weekend’s storm.” “Our crews have been working incredibly hard to ensure that we minimize any effects that this storm may have on our customers and hometowns,” the statement continued.

3 important photographs of the California storm from a satellite that was launched in time to record the drama

Image source : Fox weather

The enormity of the storm system traveling over California this week is visible in images from a recently operational government satellite, featuring the stunning whorl of a “bomb cyclone” as it intensifies and the whipping tail of an atmospheric river. The National Oceanic and Atmospheric Administration’s GOES-18 satellite, which was launched in March, began operating on Wednesday and provided the startling photographs of the storm off the West Coast According to Dan Lindsey, a program scientist with NOAA’s GOES-R program, GOES-18 was far higher than most other satellites when it collected the data needed to produce these photographs. The satellite revolves at the same speed as the planet and flies roughly 22,000 miles above Earth, which enables cameras to take numerous pictures over time from the same angle An image from a single wavelength in the visible red region of the spectrum is shown below. It enables viewers to see in black and white what they would see from space. Or “a very classic-looking comma-head mid-latitude cyclone with a cold front going down,” as Lindsey put it.

The coolest clouds are seen in the “sandwich” graphic below, along with any potential precipitation they may be carrying as they move near California’s coast. In order to show the cloud outlines in black and white and to provide a feeling of the temperature of the coldest clouds using color, the image mixes some visible-band, or reflected, radiation with infrared data. High clouds frequently produce rain and snow since they are the highest in the atmosphere. The clouds become cooler and probably are at a greater altitude as the color changes from blue and green to yellow and orange

According to Lindsey, weather storms that influence the West Coast typically originate from the Pacific. In the Northern Hemisphere, mid-latitude cyclones like the one headed toward California normally move from west to east while bringing water vapor from the ocean According to him, clouds can be stretched upward and produce rain as a cold front, or the edge of a storm, strikes warmer air over land. Adam Roser, a meteorologist with the National Weather Service in San Diego, stated that the storm’s “intense area of spin in the middle” is comparable to a bomb cyclone. According to him, a bomb cyclone is defined as a “region of low pressure that decreases very quickly,” and he also noted that the cyclone is intensifying The “cold frontal boundary,” usually referred to as an atmospheric river, is the tail and is responsible for California’s stormy weather. On Wednesday morning, the windy, rainy conditions were affecting Northern California, and Roser anticipated that they would spread further south by the evening. He said that “heavy rains, windy weather, strong waves and high surf” could occur. Governor Gavin Newsom has declared a state of emergency to “help response and recovery operations” after this week’s storms, which may be the worst to hit Northern California since the El Nio-fueled winter of 1997–1998.

Warnings are issued around the Pacific coast by a large system.
On Wednesday, weather experts sent advisories to those in their service regions about anticipated power outages as well as the dangers of traveling through high winds, debris, and downed trees and power lines national Weather Service offices from Los Angeles to Eureka, California, and Medford and Portland, Oregon, warned people of the possibility of destructive winds, with peak gusts likely to reach 60 and 70 mph in certain locations.

Massive volumes of water are carried by atmospheric rivers.
In the West Coast’s typical weather pattern, atmospheric rivers provide much-needed rain and snowfall that stores water high in the mountains, providing relief from months of warm-time dryness. Extreme precipitation is possible; according to NPR, one atmospheric river “may carry more water than the Mississippi River at its mouth.” Forecasters have long issued warnings about how hazardous the system’s winds are. The renowned sequoia known as the “Pioneer Cabin Tree” in Calaveras Big Trees State Park was uprooted by one of the storms in 2017.