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El Niño is a part of a routine climate pattern that occurs when sea surface temperatures in the tropical Pacific Ocean rise to above-normal levels for an extended period of time.
The opposite of El Niño, La Niña, is when sea surface temperatures in the central Pacific drop to lower-than-normal levels.
These warm and cool phases are part of a recurring climate pattern that occurs across this section of the Pacific, known as the El Nino-Southern Oscillation (ENSO), according to the National Oceanic and Atmospheric Administration (NOAA).
www.accuweather.com/...
The El Nino Southern Oscillation (ENSO) is one of the most important climatic phenomena on Earth.
By influencing global temperatures and precipitation, ENSO significantly impacts Earth’s ecosystems and human societies. El Nino and La Nina are opposite extremes of the ENSO, which refers to cyclical environmental conditions that occur across the Equatorial Pacific Ocean. These changes are due to natural interactions between the ocean and atmosphere. Sea surface temperature, rainfall, air pressure, atmospheric and ocean circulation all influence each other. www.noaa.gov/...
"A strengthening El Niño may be making severe weather outbreaks more frequent and intense"
2019 severe weather season is off to a running start. Less than a week after devastating tornadoes hit the Deep South, two more severe weather threats are on their way within the next week.
A strengthening El Niño may be making severe weather outbreaks more frequent and intense.
One storm that was located over California as of Thursday will now move east into the Rockies and western Plain States late Friday into Saturday. It will be powered by an active Pacific storm track and atmospheric river from the Tropical Pacific.While a general thunderstorm risk will start during the day Friday in eastern Texas through the Tennessee Valley, the biggest risk of severe thunderstorms will be later Friday night into Saturday.
A severe thunderstorm is defined as a storm with winds of at least 58 mph and/or hail larger than 1 inch in diameter.
The Storm Prediction Center, a government agency that operates under the National Weather Service, said in a statement Thursday morning that robust, turning winds at various layers of the atmosphere are expected, highlighting the threat for strong winds and a few tornadoes.
"At this time, the most likely axis where conditions may become most favorable for a more substantial severe risk appears to exist from the Mississippi Delta region, east-northeast across northern Mississippi and parts of western Tennessee, and into the Tennessee Valley/northwest Alabama," the statement said.
Unlike last spring, when an unfavorable wind pattern made for a quiet startto the severe weather season, this season's storm track is the perfect storm for severe weather. An active Pacific jet stream continues to thrust storm systems -- with cold air in the upper levels of the atmosphere -- across California and into the Plain States and Southeast. When that cold mixes with warm moist air pulled north from the Gulf of Mexico, severe weather ignites.
This active pattern is enough on its own to spark severe weather. But this year, El Niño is an added instigator. El Niño's warm Tropical Pacific waters are helping power a strong subtropical jet stream, or atmospheric river, into the southern U.S. And unlike most El Niños, it is getting more intense and influential as spring unfolds.www.cbsnews.com/...
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Wednesday, Mar 13, 2019 · 7:46:51 PM +00:00
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Angmar
NPR:
"A 'Bomb Cyclone' Is Thwacking The Central U.S.
When a storm gets very intense very quickly, it gets a very special, very scary name: bomb cyclone.
And just such a storm has arrived in the central U.S.
The powerful system is already bringing high winds, rain and snow to an enormous chunk of the country, including the Rocky Mountains, the Plains, the Mississippi Valley and the Great Lakes region. The National Weather Service has issued high wind and winter storm advisories for an area ranging from Colorado and New Mexico over to Nebraska and parts of Texas, and up to South Dakota.
"This will be one of the strongest wind events in years for West Texas and Southeast New Mexico," warned the National Weather Service office in Midland, Texas, with gusts up to 75 miles per hour on Wednesday".www.npr.org/...
live stream of winds:
www.windy.com/...
