Posted on December 13, 2014 by Bob Berwyn
Last week’s Pacific storm dropped near-record rain
The video was created by NASA/NOAA’s GOES Project at NASA’s Goddard Space Flight Center in Greenbelt, Maryland.
FRISCO — A weekend storm rolling into Colorado won’t have a direct pineapple connection, but if the powder does pile up, it will be due to a big stream of moisture from the subtropical Pacific ocean that is wrapped into the approaching weather front.
As the National Oceanic and Atmospheric Administration described in a press release, the ‘Pineapple Express’’ happens when warm air and lots of moisture are transported from the Central Pacific, near Hawaii, to the Eastern Pacific Ocean. The above animation of satellite imagery from NOAA’s GOES-West satellite showed the stream of clouds associated with that moisture from Dec. 9 to Dec. 12, 2014 and brought rain and snow to the western U.S. Continue reading
Filed under: climate and weather, Drought, El Niño, extreme weather | Tagged: California drought, climate, El Nino, extreme weather | 3 Comments »
Posted on October 16, 2014 by Bob Berwyn
The southern U.S., including parts of drought-hit Arizona, may see above-average precipitation this winter.
Climate experts say there’s good chance of average precipitation in California, but recovery will take a while
FRISCO — There may be some drought relief for California this winter, but the state won’t make up a huge moisture deficit in just one rainy season, federal climate scientists said this week, releasing their winter season outlook.
“Complete drought recovery in California this winter is highly unlikely,” said Mike Halpert, acting director of NOAA’s Climate Prediction Center.”While we’re predicting at least a 2 in 3 chance that winter precipitation will be near or above normal throughout the state, with such widespread, extreme deficits, recovery will be slow,” Halpert added. Continue reading
Filed under: agriculture, climate and weather, Drought, El Niño | Tagged: California drought, climate, El Nino, winter weather outlook | Leave a comment »
Posted on September 8, 2014 by Bob Berwyn
It’s hard to see what (some_ people don’t understand about this global warming graph.
‘At the rate the temperature is increasing, the next 1.3-degree bump will happen much more quickly’
By Summit Voice
FRISCO — Climate scientists say they’ve been able to tease out the anthropogenic part of a long-term warming trend in the Pacific Northwest, where the annual mean temperature has warmed by about 1.3 degrees Fahrenheit in the past 100 years.
That has lengthened the freeze-free season by two to three weeks and is the equivalent of the snow line moving up 600 feet, said Philip Mote, director of the Oregon Climate Change Research Institute at Oregon State University and a co-author on the study, published in the American Meteorological Society’s Journal of Climate. Continue reading
Filed under: climate and weather, El Niño, global warming | Tagged: climate change, global warming, natural variability, Pacific Northwest | Leave a comment »
Posted on August 31, 2014 by Bob Berwyn
Energetic monsoon brings moisture surplus to many areas
The big wet?
By Summit Voice
FRISCO — An energetic and widespread monsoon weather pattern brought above normal precipitation to much of the West in August, with a bullseye of moisture in southern Idaho, extending across western Wyoming, Montana, northeastern Utah and into northwestern Colorado. Some locations in the region saw up to 800 percent of average precipitation. Continue reading
Filed under: climate and weather, Colorado, Drought, El Niño | Tagged: climate, Colorado, El Nino, Southwest monsoon, weather, West | 1 Comment »
Posted on August 28, 2014 by Bob Berwyn
Cold snaps more likely during El Niño winters
How does El Niño affect weather in Europe?
FRISCO —El Niños don’t just affect anchovy fishermen in Peru and the ski resorts of the Sierra Nevada. The somewhat cyclical variation in equatorial Pacific sea surface temps can shift weather patterns worldwide, including in Europe, which may be more susceptible to extreme cold outbreaks in El Niño years, according to a new study led by a University of Colorado, Boulder researcher.
Other research has hinted at the connection, but the new paper is the first to show that El Niños might be linked with Sudden Stratospheric Warming events, when temperatures high in the atmosphere change radically, affect the polar vortex, a belt of winds that form a boundary between the cold Arctic and the temperate mid-latitudes. Sudden Stratospheric Warming weakens those winds, often leading to outbreaks of bitter cold Arctic air across Europe and possibly the eastern U.S. Continue reading
Filed under: climate and weather, El Niño, extreme weather | Tagged: Arctic outbreaks, climate, El Nino, Europe, extreme weather, Sudden stratospheric warming | 1 Comment »
Posted on August 12, 2014 by Bob Berwyn
Hot and cold pattern persists
The yin and yang of climate, with hot readings in the far West and below-average temperatures the Midwest, along the Atlantic seaboard and the deep south. Map courtesy NCDC.
FRISCO — A hot-and-cold pattern continued over the continental U.S. in July, with some western states reporting record and near-record warmth, while parts of the Midwest were record cold for the month. Continue reading
Filed under: climate and weather, Drought, El Niño, extreme weather, global warming | Tagged: climate change, Environment, global warming, July temperatures, U.S. climate statistics | 1 Comment »
Posted on August 9, 2014 by Bob Berwyn
Archaeologists, ocean scientists team up on detailed study of historic climate cycles in Pacific Ocean
Study offers new clues to past and future El Niños.
FRISCO — Today’s climate models may not do a very good job of predicting changes in the Pacific Ocean El Niño-La Niña cycle, an international team of scientists said after studying old seashells that display a distinct history of climate variations.
Understanding how El Niño responds to global warming is significant because the undulating rhythm of warming and cooling waters in the equatorial Pacific is a key driver of weather patterns around the world. Some modeling studies have suggested that ancient El Niños may have been weaker than today’s but the new research suggests they were as strong and as frequent as they are now, at least going back about 10,000 years. Continue reading
Filed under: climate and weather, El Niño, extreme weather, global warming | Tagged: climate change, El Nino, Pacific Ocean | 2 Comments »