High Chances of a Powerful El Niño Event Impacting California
A powerful El Niño event is likely to occur this year, bringing with it the possibility of heavy rainfall in Southern California this winter. Scientists have observed the climate pattern strengthening over recent weeks and predict a 63% probability of an unusually potent El Niño this year, making it one of the most intense since 1950.
Impact on Southern California's Weather
In Southern California, a strong El Niño could mean a wetter winter than usual. Weather experts have noted significant changes in oceanic conditions in recent months, such as rising temperatures deep below the ocean's surface, which have led to increased confidence in the prediction of a strong El Niño event. Such conditions are said to be fueling the upcoming El Niño event.
Previous strong El Niño events in 1982-83 and 1997-98 resulted in heavy rainfall in Los Angeles, with more than double the area's average annual rainfall. These events caused severe coastal damage, widespread flooding, and mudslides, resulting in numerous fatalities and substantial economic damage.
El Niño's Impact Beyond Rainfall
While El Niño is often associated with heavy rain, it can cause other types of damage as well. For instance, the 2015-16 El Niño, despite bringing only half the usual rainfall to Los Angeles, caused record coastal erosion along many California beaches. Even in years with less rainfall, those living along the coast and those involved in marine activities can experience damaging waves and dangerous rip currents.
El Niño is one of the most influential climate patterns on Earth, impacting global weather, rainfall, and drought. It usually occurs every two to seven years and lasts about nine to twelve months.
Although a strong El Niño increases the likelihood of a wetter-than-normal year, it doesn't necessarily result in more flooding. However, the warming ocean temperatures associated with El Niño can have a significant impact on marine life.
Effects on Marine Life
Warmer ocean temperatures can lead to an increase in tropical or warm subtropical species, including sharks. Particularly, residents of Southern California may see an increase in shark sightings along the coast. Other marine creatures, such as sea jellies, may also become more prevalent.
One particular species, known as the by-the-wind sailor, can wash up on West Coast shores. While these creatures are usually harmless to humans, other similar-looking species that have been observed during past El Niño events, such as the Portuguese man o' war, can deliver a painful sting.
Marine heat waves can also have devastating effects on the local ecosystem. For instance, they have led to a significant decline in California's bull kelp habitats, negatively impacting other species like the endangered white abalone. Warmer waters can also worsen the effects of sea star wasting disease, which has nearly wiped out the sunflower sea star population in California.
Heat waves can be deadly for seabirds, which may starve if their food sources disappear. They can also lead to an increase in sea lion strandings, as warmer ocean temperatures can affect the availability of their food or lead to the production of harmful algal toxins.
Additional Marine Heat Waves
Currently, two marine heat waves, unrelated to El Niño, have been observed near California. One began off the southern coast of the state in December, and a second one started off the coast of Northern California and Oregon in May. El Niño also tends to cause marine heat waves. According to experts, the duration of exposure to the heat, rather than the intensity of the heat, can have a significant impact on marine ecosystems.
A powerful El Niño event is likely to occur this year, bringing with it the possibility of heavy rainfall in Southern California this winter. Scientists have observed the climate pattern strengthening over recent weeks and predict a 63% probability of an unusually potent El Niño this year, making it one of the most intense since 1950.
Impact on Southern California's Weather
In Southern California, a strong El Niño could mean a wetter winter than usual. Weather experts have noted significant changes in oceanic conditions in recent months, such as rising temperatures deep below the ocean's surface, which have led to increased confidence in the prediction of a strong El Niño event. Such conditions are said to be fueling the upcoming El Niño event.
Previous strong El Niño events in 1982-83 and 1997-98 resulted in heavy rainfall in Los Angeles, with more than double the area's average annual rainfall. These events caused severe coastal damage, widespread flooding, and mudslides, resulting in numerous fatalities and substantial economic damage.
El Niño's Impact Beyond Rainfall
While El Niño is often associated with heavy rain, it can cause other types of damage as well. For instance, the 2015-16 El Niño, despite bringing only half the usual rainfall to Los Angeles, caused record coastal erosion along many California beaches. Even in years with less rainfall, those living along the coast and those involved in marine activities can experience damaging waves and dangerous rip currents.
El Niño is one of the most influential climate patterns on Earth, impacting global weather, rainfall, and drought. It usually occurs every two to seven years and lasts about nine to twelve months.
Although a strong El Niño increases the likelihood of a wetter-than-normal year, it doesn't necessarily result in more flooding. However, the warming ocean temperatures associated with El Niño can have a significant impact on marine life.
Effects on Marine Life
Warmer ocean temperatures can lead to an increase in tropical or warm subtropical species, including sharks. Particularly, residents of Southern California may see an increase in shark sightings along the coast. Other marine creatures, such as sea jellies, may also become more prevalent.
One particular species, known as the by-the-wind sailor, can wash up on West Coast shores. While these creatures are usually harmless to humans, other similar-looking species that have been observed during past El Niño events, such as the Portuguese man o' war, can deliver a painful sting.
Marine heat waves can also have devastating effects on the local ecosystem. For instance, they have led to a significant decline in California's bull kelp habitats, negatively impacting other species like the endangered white abalone. Warmer waters can also worsen the effects of sea star wasting disease, which has nearly wiped out the sunflower sea star population in California.
Heat waves can be deadly for seabirds, which may starve if their food sources disappear. They can also lead to an increase in sea lion strandings, as warmer ocean temperatures can affect the availability of their food or lead to the production of harmful algal toxins.
Additional Marine Heat Waves
Currently, two marine heat waves, unrelated to El Niño, have been observed near California. One began off the southern coast of the state in December, and a second one started off the coast of Northern California and Oregon in May. El Niño also tends to cause marine heat waves. According to experts, the duration of exposure to the heat, rather than the intensity of the heat, can have a significant impact on marine ecosystems.