A Bomb Cyclone Is One of Two Major Storms Walloping the U.S. Thanksgiving Week

Two major storms are already walloping the U.S. in time for Thanksgiving.
A winter storm that has already killed one moved from Colorado, Wyoming and Nebraska into the Midwest Wednesday, while a "bomb cyclone" hit the Oregon coast Tuesday evening, according to an Associated Press story published by The Washington Post.
"This is an unprecedented storm given the track and strength and will bring very dangerous conditions to the area," the National Weather Service (NWS) in Medford, Oregon, said of the second storm, according to USA Today. "High winds and heavy snow is expected to impact the area."
A tale of two storms for Thanksgiving week. The first crosses the Central Plains into the Upper Midwest into Wednes… https://t.co/8tqXzD0jkm— NWS WPC (@NWS WPC)1574807338.0
The first storm unleashed nearly three feet of snow on Colorado and led to one death and two injuries when a tractor-trailer collided with two trucks near Vail, Colorado, the Associated Press reported. It also forced the Denver airport to cancel around 30 percent of its flights.
The storm is expected to heap a foot of snow on a region stretching from the Plains, to the upper Mississippi Valley, to the upper Great Lakes and northern Maine, and could disrupt airports along the way, NPR reported.
It is also predicted to unleash wind gusts of more than 50 miles per hour in the Midwest and Ohio Valley region, according to NWS.
Heavy snow coming down at NWS Twin Cities #mnwx #wiwx https://t.co/f6sFTvdX5I— NWS Twin Cities (@NWS Twin Cities)1574836933.0
Wind from the storm system could even disrupt the Macy's Thanksgiving Day Parade: its iconic balloons will have to be grounded if forecast 40-50 mile per hour wind gusts materialize, the Associated Press reported.
The second storm already set a record for the lowest pressure for the month of November Tuesday evening, when its central pressure bottomed out at 970 millibars, according to NWS.
"In general, the lower the pressure, the stronger the storm," The Washington Post's Capital Weather Gang explained.
The storm strengthened through a process called bombogenesis, when a cyclone's pressure drops at least 24 millibars in 24 hours. Storms that accomplish this feat are referred to as "bomb cyclones." Medford NWS staffer Tom Wright said the air pressure of Tuesday's storm dropped even more quickly than that, according to an Associated Press story published by The Columbian.
The storm is now weakening, but it has already generated sustained winds of up to 85 miles per hour in parts of Oregon and up to 34 foot seas, according to the NWS. It has unleashed heavy rains on the coasts of Southwest Oregon and Northern and Central California and heavy snow in the mountains.
The OR/CA storm peaked pressure-wise with a central pressure of 970 hPa/28.64" at 7 pm PST before slowly weakening.… https://t.co/tFkYq80SXP— NWS WPC (@NWS WPC)1574835035.0
It has also led to the closure of roads in Southern Oregon because of downed trees and power lines and blizzard-like driving conditions, according to the Associated Press story published by The Washington Post.
"It's blowing pretty good outside but because we're right on the coast, everything was built to ensure the safety of people," Northern California hotel manager Angela Smith told the Associated Press.
She said her Oceanfront Lodge briefly lost power.
The climate crisis is increasing the risk of both winter storms and wind damage, according to Climate Signals.
- Record 7 Million People Displaced by Extreme Weather Events in ... ›
- Do You Remember Normal Weather? Scientists Say Most of Us Don't ›
New fossils uncovered in Argentina may belong to one of the largest animals to have walked on Earth.
- Groundbreaking Fossil Shows Prehistoric 15-Foot Reptile Tried to ... ›
- Skull of Smallest Known Dinosaur Found in 99-Million-Year Old Amber ›
- Giant 'Toothed' Birds Flew Over Antarctica 40 Million Years Ago ... ›
- World's Second-Largest Egg Found in Antarctica Probably Hatched ... ›
EcoWatch Daily Newsletter
A federal court on Tuesday struck down the Trump administration's rollback of the Obama-era Clean Power Plan regulating greenhouse gas emissions from power plants.
- Pruitt Guts the Clean Power Plan: How Weak Will the New EPA ... ›
- It's Official: Trump Administration to Repeal Clean Power Plan ... ›
- 'Deadly' Clean Power Plan Replacement ›
Trending
By Jonathan Runstadler and Kaitlin Sawatzki
Over the course of the COVID-19 pandemic, researchers have found coronavirus infections in pet cats and dogs and in multiple zoo animals, including big cats and gorillas. These infections have even happened when staff were using personal protective equipment.
Gorillas have been affected by human viruses in the past and are susceptible to the coronavirus. Thomas Fuhrmann via Wikimedia Commons, CC BY-SA
- Gorillas in San Diego Test Positive for Coronavirus - EcoWatch ›
- Wildlife Rehabilitators Are Overwhelmed During the Pandemic. In ... ›
- Coronavirus Pandemic Linked to Destruction of Wildlife and World's ... ›
- Utah Mink Becomes First Wild Animal to Test Positive for Coronavirus ›
By Peter Giger
The speed and scale of the response to COVID-19 by governments, businesses and individuals seems to provide hope that we can react to the climate change crisis in a similarly decisive manner - but history tells us that humans do not react to slow-moving and distant threats.
A Game of Jenga
<p>Think of it as a game of Jenga and the planet's climate system as the tower. For generations, we have been slowly removing blocks. But at some point, we will remove a pivotal block, such as the collapse of one of the major global ocean circulation systems, for example the Atlantic Meridional Overturning Circulation (AMOC), that will cause all or part of the global climate system to fall into a planetary emergency.</p><p>But worse still, it could cause runaway damage: Where the tipping points form a domino-like cascade, where breaching one triggers breaches of others, creating an unstoppable shift to a radically and swiftly changing climate.</p><p>One of the most concerning tipping points is mass methane release. Methane can be found in deep freeze storage within permafrost and at the bottom of the deepest oceans in the form of methane hydrates. But rising sea and air temperatures are beginning to thaw these stores of methane.</p><p>This would release a powerful greenhouse gas into the atmosphere, 30-times more potent than carbon dioxide as a global warming agent. This would drastically increase temperatures and rush us towards the breach of other tipping points.</p><p>This could include the acceleration of ice thaw on all three of the globe's large, land-based ice sheets – Greenland, West Antarctica and the Wilkes Basin in East Antarctica. The potential collapse of the West Antarctic ice sheet is seen as a key tipping point, as its loss could eventually <a href="https://science.sciencemag.org/content/324/5929/901" target="_blank">raise global sea levels by 3.3 meters</a> with important regional variations.</p><p>More than that, we would be on the irreversible path to full land-ice melt, causing sea levels to rise by up to 30 meters, roughly at the rate of two meters per century, or maybe faster. Just look at the raised beaches around the world, at the last high stand of global sea level, at the end of the Pleistocene period around 120,0000 years ago, to see the evidence of such a warm world, which was just 2°C warmer than the present day.</p>Cutting Off Circulation
<p>As well as devastating low-lying and coastal areas around the world, melting polar ice could set off another tipping point: a disablement to the AMOC.</p><p>This circulation system drives a northward flow of warm, salty water on the upper layers of the ocean from the tropics to the northeast Atlantic region, and a southward flow of cold water deep in the ocean.</p><p>The ocean conveyor belt has a major effect on the climate, seasonal cycles and temperature in western and northern Europe. It means the region is warmer than other areas of similar latitude.</p><p>But melting ice from the Greenland ice sheet could threaten the AMOC system. It would dilute the salty sea water in the north Atlantic, making the water lighter and less able or unable to sink. This would slow the engine that drives this ocean circulation.</p><p><a href="https://www.carbonbrief.org/atlantic-conveyor-belt-has-slowed-15-per-cent-since-mid-twentieth-century" target="_blank">Recent research</a> suggests the AMOC has already weakened by around 15% since the middle of the 20th century. If this continues, it could have a major impact on the climate of the northern hemisphere, but particularly Europe. It may even lead to the <a href="https://ore.exeter.ac.uk/repository/handle/10871/39731?show=full" target="_blank" rel="noopener noreferrer">cessation of arable farming</a> in the UK, for instance.</p><p>It may also reduce rainfall over the Amazon basin, impact the monsoon systems in Asia and, by bringing warm waters into the Southern Ocean, further destabilize ice in Antarctica and accelerate global sea level rise.</p>The Atlantic Meridional Overturning Circulation has a major effect on the climate. Praetorius (2018)
Is it Time to Declare a Climate Emergency?
<p>At what stage, and at what rise in global temperatures, will these tipping points be reached? No one is entirely sure. It may take centuries, millennia or it could be imminent.</p><p>But as COVID-19 taught us, we need to prepare for the expected. We were aware of the risk of a pandemic. We also knew that we were not sufficiently prepared. But we didn't act in a meaningful manner. Thankfully, we have been able to fast-track the production of vaccines to combat COVID-19. But there is no vaccine for climate change once we have passed these tipping points.</p><p><a href="https://www.weforum.org/reports/the-global-risks-report-2021" target="_blank">We need to act now on our climate</a>. Act like these tipping points are imminent. And stop thinking of climate change as a slow-moving, long-term threat that enables us to kick the problem down the road and let future generations deal with it. We must take immediate action to reduce global warming and fulfill our commitments to the <a href="https://www.ipcc.ch/sr15/" target="_blank" rel="noopener noreferrer">Paris Agreement</a>, and build resilience with these tipping points in mind.</p><p>We need to plan now to mitigate greenhouse gas emissions, but we also need to plan for the impacts, such as the ability to feed everyone on the planet, develop plans to manage flood risk, as well as manage the social and geopolitical impacts of human migrations that will be a consequence of fight or flight decisions.</p><p>Breaching these tipping points would be cataclysmic and potentially far more devastating than COVID-19. Some may not enjoy hearing these messages, or consider them to be in the realm of science fiction. But if it injects a sense of urgency to make us respond to climate change like we have done to the pandemic, then we must talk more about what has happened before and will happen again.</p><p>Otherwise we will continue playing Jenga with our planet. And ultimately, there will only be one loser – us.</p>By John R. Platt
The period of the 45th presidency will go down as dark days for the United States — not just for the violent insurgency and impeachment that capped off Donald Trump's four years in office, but for every regressive action that came before.
- Biden Announces $2 Trillion Climate and Green Recovery Plan ... ›
- How Biden and Kerry Can Rebuild America's Climate Leadership ... ›
- Biden's EPA Pick Michael Regan Urged to Address Environmental ... ›
- How Joe Biden's Climate Plan Compares to the Green New Deal ... ›