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Kelvin Wave

All articles tagged with #kelvin wave

Newport Beach declares emergency as Kelvin wave and Tropical Storm Rachel trigger record coastal flooding
weather-and-climate23 days ago

Newport Beach declares emergency as Kelvin wave and Tropical Storm Rachel trigger record coastal flooding

Newport Beach declared a local emergency on October 9, 2026, after ocean water surged onto the Balboa Peninsula, submerging streets and threatening homes. The event was driven by a combination of high tides, a south-facing swell from Tropical Storm Rachel, and a planetary-scale Kelvin wave associated with a record-breaking El Niño. While water receded by mid-afternoon, officials warn that conditions will worsen through the weekend, with tides potentially reaching 1.5 feet above astronomical charts. The city deployed crews to rebuild sand berms and pump out standing water, while neighboring Long Beach issued evacuation orders for beachfront homes due to similar surge impacts.

Tropical Storm Rachel Targets San Diego Amid Record El Niño Conditions
weather24 days ago

Tropical Storm Rachel Targets San Diego Amid Record El Niño Conditions

Tropical Storm Rachel is forecast to make landfall near the San Diego-Tijuana border late Saturday night, marking the first tropical storm to hit California since 1939. The system will bring significant rain, wind, and coastal flooding to Southern California, exacerbated by an El Niño-driven Kelvin wave that is elevating sea levels by up to 12 inches. While the storm weakens as it moves inland, its remnants are expected to deliver heavy precipitation to Utah and Nevada, offering critical relief for drought-stricken regions despite flooding risks.

Rachel and Kelvin Wave Combine to Threaten California Coast with Floods and Erosion
weather24 days ago

Rachel and Kelvin Wave Combine to Threaten California Coast with Floods and Erosion

Tropical Storm Rachel and an El Niño-driven Kelvin wave are converging to create severe coastal flooding and erosion risks across Southern California. Forecasters predict a 70-90% chance of rain in Los Angeles and Ventura counties from Saturday to Tuesday, with peak flooding expected Sunday. The Kelvin wave, which can raise sea levels by 6-12 inches, is expected to keep tides elevated for months. While Rachel is weakening, its moisture will interact with other low-pressure systems to bring widespread rain and dangerous surf. The event follows a record-breaking heat wave and coincides with a historic El Niño, which NOAA says has an 83% chance of being the strongest in the modern record.

California Braces for Record El Niño and Kelvin Wave to Compound Coastal Flooding
us-weather1 month ago

California Braces for Record El Niño and Kelvin Wave to Compound Coastal Flooding

California is preparing for a historic winter as a massive Kelvin wave, driven by a record-breaking El Niño, raises sea levels by up to a foot. This surge compounds existing climate change trends, threatening to double the 8-12 inch rise seen over the last century. While the wave itself does not crash like a tsunami, it elevates tides, amplifying the impact of storms and high tides. Governor Gavin Newsom has declared a state of emergency as communities race to protect infrastructure, though experts warn that short-term defenses like seawalls may accelerate long-term beach erosion.

Record El Niño Drives Massive Kelvin Wave Toward California Coast
climate1 month ago

Record El Niño Drives Massive Kelvin Wave Toward California Coast

A planetary-scale Kelvin wave, triggered by a record-breaking El Niño, is approaching California. This slow-moving pulse of warm water is expected to raise sea levels by up to a foot, compounding existing marine heatwaves and erosion risks. Governor Gavin Newsom has declared a state of emergency to prepare for potential flooding and storm surges through winter 2027.

California Declares Emergency as Record-Breaking El Niño Drives Planetary-Scale Kelvin Wave Toward Coast
climate-and-environment1 month ago

California Declares Emergency as Record-Breaking El Niño Drives Planetary-Scale Kelvin Wave Toward Coast

A massive, slow-moving Kelvin wave is approaching California's coast, potentially raising sea levels by up to 12 inches. This surge, driven by a historically intense El Niño, threatens to exacerbate winter storm surges and flooding. Governor Gavin Newsom has declared a state of emergency, mobilizing resources and urging residents to prepare for elevated tides and coastal erosion.

El Niño-driven Kelvin wave to add 6 inches to California sea levels by early October
environment1 month ago

El Niño-driven Kelvin wave to add 6 inches to California sea levels by early October

A coastally trapped Kelvin wave, fueled by a strengthening El Niño, is moving up the Pacific coast and is expected to reach Southern California in early October. This phenomenon will raise sea levels by an additional 6 to 12 inches, compounding existing climate-driven rises and marine heatwaves. The elevated water levels significantly increase the risk of severe coastal erosion and flooding when combined with winter storms or high tides.

Venus's 3,700-Mile Cloud Wall Reveals Planetary-Scale Hydraulic Jump
space5 months ago

Venus's 3,700-Mile Cloud Wall Reveals Planetary-Scale Hydraulic Jump

Scientists have identified a planetary-scale hydraulic jump—driven by a Kelvin wave—in Venus’s thick CO2-sulfuric acid atmosphere that forms a 3,700-mile-wide cloud wall racing around the planet every few days, faster than Venus’s rotation. This cross-scale coupling links large-scale winds to localized vertical motion, a mechanism missing from current global circulation models and potentially key to understanding Venus’s extreme super-rotation. The finding reshapes how researchers model Venus’s climate and points to updates ahead of upcoming missions such as DAVINCI, VERITAS, and EnVision.

Venus hosts the solar system’s largest hydraulic jump, fueling towering sulfuric acid clouds
space5 months ago

Venus hosts the solar system’s largest hydraulic jump, fueling towering sulfuric acid clouds

Scientists show that Venus’s 30-mile-high sulfuric acid clouds are generated by the solar system’s largest hydraulic jump, a vertical updraft triggered by a planet-wide eastward Kelvin wave that lifts sulfuric acid vapor to about 50 km, creating a massive cloud bank. The finding, based on new modeling, represents the first observed hydraulic jump on a planet beyond Earth and was published in the Journal of Geophysical Research – Planets.