Rising Weight: Climate Change Muffles Storms and Rainfall

The heavy storm system that floods the central and southeastern US with heavy rain and winds fits a wider pattern as rainfall has increased over the eastern US half has increased in recent decades.

Data from the National Maritime and Atmospheric Administration from 1991 to 2020 show that on average the eastern part of the country received more rain, on average, than in the 20th century. At the same time, precipitation decreased in the west.

The sharp East-West division is consistent with predictions from climate scientists who expect wet areas to be wet, with dry areas becoming dry as the world warms.

Without further analysis, individual storms cannot be linked to climate change, but warming the air will result in greater rainfall. This is because warm air has the ability to retain more moisture than cooler air, and has the potential to be fueled due to overall average precipitation, and more intense storms.

The world’s temperatures are increasing year by year, driven by the combustion of fossil fuels that send greenhouse gases that warm the planets into the atmosphere. According to a recent report, the 10 people have been the hottest recordkeeping for nearly 200 years. World Weather Organization.

“When there are these very heavy rain events, trends refer to the heavy trends of these intense events,” said Deanna, an associate professor of climate and atmospheric sciences at the University of Illinois, Urbana-Champaign University.

Severe flooding could be an indirect effect of warming air and increased moisture, according to Gerald Brotzge, a Kentucky national climate scientist and director of the Kentucky Climate Center. If conditions stall a storm system, it can cause heavy rain in the same area, increasing the risk of flooding.

This is what happened when the storm recently stagnated in the region. “I think it’s a once-at-a-time event based on the amount and area covered,” Brotzge said.

Mark Jarvis, a meteorologist at the National Weather Service office in Louisville, Kentucky, described the storm as two. It brought tornadoes, strong winds and hail to the front end, then stalled and dropped historic amounts of rainfall. Western Kentucky, who saw some of the most serious effects of the storm, “it was in the eyes of the bull,” he said.

Heavy rain and flooding are common in Ohio Valley in late winter and early spring, but the system is as common as it is “very rare” for rain. “That’s what you normally see in hurricanes and tropical systems,” he said..

Storm damage is constantly happening, but the possibility that climate change is increasing them is Observed weather trendstherefore Mr.

She said that even in the western half of the United States, which is generally dry, the coming precipitation tends to drop at more extreme levels.

She called it “very eye-opening,” adding, “it’s not particularly comfortable to think we have more of this.”

Source: www.nytimes.com

Las Vegas Ends 214-Day Dry Spell with 0.01 Inch of Rainfall

Las Vegas – After a staggering 214 days without any measurable rainfall, the Las Vegas Valley finally saw some drizzle.

On Thursday, the National Weather Service recorded 0.01 inch of rain at Harry Reed International Airport, ending one of the longest dry spells in the city’s history.

This marks the first time in 88 years that Las Vegas has gone more than 200 days without rain, according to the National Weather Service. The last significant rainfall in the area was seven months ago, before July 13th, 2024.

While this dry spell broke records, the city’s longest stretch without measurable rain remains at 240 days, a drought that occurred in 2020.

The current winter season is uncharacteristically warm and dry in the region.

Almost all of southern Nevada is currently facing “extreme” drought conditions. The US drought monitors release color-coded maps weekly to show the severity of drought conditions nationally.

The most recent drought monitor map shows that over 88% of the state is experiencing some level of drought, with around 21% facing “extreme” or “exceptional” dryness.

Thursday’s rain extended across desert areas in the southwest, affecting much of southern Nevada, as well as parts of California and Arizona.

The Las Vegas branch of the Meteorological Bureau stated that due to months of dry weather, the exact amount of rainfall from this event remains uncertain. According to x.

Higher elevations are expecting snow, with winter storm warnings in place for Nevada’s Spring Mountain area until Friday afternoon. Weather services predict 12-24 inches of snow in the mountains, with snowfall potentially reaching above 8,000 feet.

The precipitation is part of a storm system moving through southern Nevada on Thursday and Friday.

The Weather Service forecasts Las Vegas could receive 0.5-0.9 inches of rain over the two days.

Source: www.nbcnews.com

Report finds that Hurricane Helen had increased rainfall and stronger winds as a result of climate change

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  • Climate change has increased Hurricane Helen’s wind speed by 11% and total precipitation by about 10%, according to a new report.
  • Researchers expect Milton to do the same, and say it is likely to get worse because of climate change.
  • The report says the higher sea surface temperatures that contributed to the intensification of both storms are 200 to 500 times more likely to be due to climate change.

As Hurricane Milton hurtles toward Florida’s west coast, a new report estimates how intense Hurricane Helen’s winds and rain could have been due to climate change. Scientists involved in the study said they expected Milton to do the same, and that it would likely get worse because of climate change.

The report, released late Wednesday night, is from the World Weather Attribution Group, a consortium of scientists that analyzes extreme weather events and determines how much climate change has influenced certain events. He is regarded as the leading expert in making decisions.

The findings show that because of climate change, Hurricane Helen’s wind speeds were 11% more intense and its precipitation totals were about 10% higher.

Friederike Otto, a climate scientist at Imperial College London who contributed to the new study, said “we now have a complete study showing a very clear link” between climate change and hurricane strength. “The biggest danger is not making the connection to climate change.”

Like Hurricane Helen, Hurricane Milton is also moving through record-breaking heat. Sea surface temperatures in the Gulf of Mexico are much warmer than usual, even for this time of year. Warmer water acts as fuel for such storms, helping them intensify faster.

Both hurricanes undergo a process known as rapid intensification, where the hurricane’s sustained wind speeds increase by at least 35 miles per hour over a 24-hour period. This trend is becoming more common due to climate change.

The report says the sea surface temperatures that pushed Helen and Milton up were 200 to 500 times warmer due to climate change.

On Monday, Milton experienced a dramatic pressure drop in the center of the hurricane, strengthening to one of the fifth strongest hurricanes ever recorded.

“This storm is definitely explosive,” said Bernadette Woods Plucky, chief meteorologist at the nonprofit research group Climate Central and co-author of the new report.

Using a combination of statistical analysis and detailed climate modeling, the researchers found that climate change and the fossil fuel pollution it causes are about 2.5 times more likely to produce a hurricane as strong as Helen.

This is the third and most extensive preliminary report linking climate change to the heavy rains that killed more than 200 people after Hurricane Helen made landfall in Florida’s Big Bend region on September 26.

Scientists at World Weather Attribution examined rainfall over two days along the coast of Florida, where Helen first hit, and three days of rainfall in mountainous areas in six neighboring states, including North Carolina and Tennessee. Assessed quantity.

They found that coastal rainfall totals are 40% more likely to be this high due to climate change, and inland rainfall totals are 70% more likely to be this high due to climate change. I discovered that there is a sex.

Helen flooded parts of southern Appalachia with more than 6 feet of rain. Floodwaters washed away houses, washed out highways, and cut off access to the town. Much of the recovery work is just beginning.

Damaged buildings in downtown Chimney Rock, North Carolina, after Hurricane Helen passed through on October 2nd.
Alison Joyce/AFP via Getty Images

The World Weather Attribution group is a loose confederation of scientists who rapidly publish extreme findings about whether and how climate change has affected particular events. Twenty-one researchers participated in the new analysis. Although the group uses peer-review methods, its findings are published prior to traditional peer-review when events are new and particularly newsworthy. Previous studies on global weather attribution have withstood further scrutiny by outside scientists and been published in major scientific journals.

Otto said the new results are consistent with two previous analyzes of the effects of climate change on Hurricane Helen, but different researchers defined the parameters of the study in different ways, and there are different He said each report produced different numbers because they focused on geography.

Scientists at World Weather Attribution will run the numbers again for Milton and write a new report.

Source: www.nbcnews.com

The Northeast Experienced Two Rare Once-in-1,000-Year Rainfall Events in a Single Night.

Over the weekend, a storm hit the Northeast, causing an extraordinary amount of rainfall in two locations on the same night, a rare occurrence that is expected once in a thousand years. The storm resulted in at least three fatalities and widespread flooding. In areas like Oxford and Southbury, Connecticut, 10 inches of rain fell in a span of 12 hours on Sunday. Similarly, Stony Brook, New York, received about 6.7 inches of rain in just three hours Sunday night. The likelihood of both events taking place in any given year is approximately 0.1%. According to federal rainfall probability data, these incidents are significant and not a common occurrence.

Nick Basile, the director of the State Weather Risk Communication Center at the University at Albany in New York, mentioned that experiencing extreme rainfall levels in two different areas in such close succession is noteworthy. While it is challenging to determine the direct impact of climate change on specific events, experts suggest that the combination of extreme rainfall events supports a broader trend in the Northeast, where intense storms are becoming more frequent.

Mark Wysocki, a retired New York state meteorologist, explained that thunderstorms are now producing heavier amounts of rainfall compared to the past. The Northeast has witnessed a considerable rise in extreme precipitation, with the 2023 National Climate Assessment reporting a steep increase in the number of events with significant rainfall.

Members of the Beacon Horse Company rescued people from the Brookside Inn in Oxford, Connecticut on Sunday.Beacon Hose Co. via The Associated Press

The impact of climate change on the behavior of the jet stream may be contributing to the prolonged presence of storms in certain areas, bringing in more moisture and causing heavier rainfall. However, researchers are still in the early stages of studying this phenomenon, making it challenging to draw definitive conclusions.

With infrastructure not designed to handle such intense rainfall, cities in the Northeast face significant challenges during severe weather events. Flash flooding becomes a major concern, prompting calls for better urban planning and infrastructure upgrades.

In Connecticut, tragic deaths occurred as a result of the storm, with two individuals swept away by floodwaters and another person killed by a fallen tree. The storm led to evacuations, water rescues, and disruptions in transportation. Connecticut Gov. Ned Lamont announced the prolonged closure of more than a dozen roads in the aftermath of the storm.

Source: www.nbcnews.com

Rare Flooding in Dubai Caused by Heavy Rainfall

Parts of the Middle East were hit by heavy rains on Tuesday, leading to school closures in the United Arab Emirates and flooding at Dubai International Airport. Oman has reported at least 18 deaths in recent days due to the inclement weather.

The storm caused flooding on roads and dangerous conditions throughout the region. This area is typically dry and not used to heavy rainfall or flash floods.

Airport officials confirmed that flights to Dubai Airport had to be diverted temporarily due to the unusual weather events in the UAE. Statement

Cars drive through flooded roads in Dubai on Tuesday after a heavy rainstorm.
Abdel Hadi Ramahi/Reuters

Video footage showed Dubai’s tarmac flooded, with planes navigating through floodwaters and support vehicles almost submerged, according to reports from Saudi Arabia’s Al Arabiya news agency.

Over 4.7 inches of rain fell in a day in the UAE, causing road and property flooding in Dubai. Associated Press reported.

The UAE’s National Emergency, Crisis and Disaster Management Authority advised people to stay home. Commenting on X’s post, they suggested parking vehicles in safe, elevated areas away from flood-prone zones.

Pedestrians cross a flooded road in Dubai on Tuesday.
Anadolu (via Getty Images)

Private schools in the UAE were closed before the storm and government employees were advised to work remotely.

While the UAE is known for its dry climate, rain does occur occasionally during the winter.

In neighboring Oman, recent storms and heavy rain have led to the deaths of 10 school children and an adult driver in a flooded car, as reported by the Associated Press.

Other parts of the Middle East, such as Qatar and Saudi Arabia, also experienced unusually wet weather this week.

It’s unclear if recent storms have been influenced by global warming, but the warming atmosphere from climate change can hold more moisture, leading to stronger storms and heavier rainfall. Studies have suggested this possibility.

Source: www.nbcnews.com

Unusual rainfall leads to temporary lake formation in extremely arid Death Valley

View from a kayak on Death Valley Temporary Lake, February 9, 2024

Michael Kohler/NPS

Heavy rain has fallen in California in recent weeks, resulting in the remarkable formation of a rare temporary lake in Death Valley, the driest place in the United States.

Record levels of rain have flooded California over the past month. Numerous atmospheric river storms (narrow bands of highly concentrated moisture in the air) worsen wet conditions, putting up to 37 million people at risk of flooding.

Heavy rainfall also hit Death Valley National Park along the California-Nevada border. In fact, it rained so much that the park's Badwater Basin, normally a dry salt flat, temporarily turned into a shallow lake.

At 86 meters below sea level, the basin is the lowest point in North America and was home to an ancient body of water that researchers named Lake Manly tens of thousands of years ago.

Over the past few decades, the lake has been backfilled several times. In August 2023, rains associated with Hurricane Hillary formed a lake 11.3 kilometers long and 0.6 meters deep, which shrank in the following months. Well, it has been replenished once again. The current maximum length of the lake is nearly 10 kilometers and the depth is approximately 0.3 meters.

Last year, Death Valley National Park Closed for several weeks after Hurricane Hillary This is because flooding damaged the road network and limited opportunities for visitors to explore the temporary lake. This time, the park opened and the re-emergence of Lake Manly attracted tourists, including swimmers and kayakers.

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Source: www.newscientist.com