January 01, 2014
Next month’s Super Bowl will be the first ever held in an open stadium in the northern U.S. What weather might we expect two weeks from now, and how might research improve a forecast in that time range?
Can a two-week forecast warn us of Super Bowl snow? Pictured: 1950 "Snow Bowl"
December 17, 2013
Three states are deploying snowplows this winter with custom-designed sensors to better monitor weather and road conditions.
Winter driving on I-84 at Meacham Hill, Oregon
November 14, 2013
Using new satellite data, scientists have developed a technique that may produce continually updated, 24-hour predictions of wildfire growth throughout the lifetime of long-lived blazes.
Forecasts of long-lived wildfires: June 2010 fire in Great Sand Dunes National Park
October 27, 2013
Scientists find that an atmospheric pattern can foreshadow the emergence of summertime heat waves in the United States more than two weeks in advance.
Long-term forecasts of heat waves: illustration with 5 high pressure ridges, typical of wavenumber-5 pattern
October 01, 2013
Though Hurricane Sandy struck almost a year ago, the fearsome cyclone lives on within the circuits of supercomputers that are replicating its unusual evolution and track.
Supercomputer visualization of Hurricane Sandy, including near-surface winds and radar reflectivity
September 14, 2013
Four days of rainfall across Colorado’s Front Range produced massive flooding that’s marooned thousands, inundated key roads, and damaged countless homes and businesses. Just how rare was this event?
Front Range disaster: flood waters in south Boulder, Colorado, September 12, 2013
July 29, 2013
Just as forecasters now peg the odds of a busy Atlantic hurricane season months in advance, we might soon have outlooks that assess the risk of an active tornado season weeks or even months ahead of time.
Tornado and wall cloud: Is long-range tornado prediction feasible?
May 13, 2013
To better predict where thunderstorms will rip across the central United States this spring, researchers are teaming a high-flying aircraft with fine-grained computer simulations.
Thunderstorm research: NSF/NCAR Gulfstream V jet at field campaign
May 09, 2013
The last month has seen a trail of smashed records across the central United States, as pulse after pulse of cold air careened down the Great Plains. How does this fit into the bigger picture of a warming U.S. climate?
Putting cold in context: Snowfall atop Ozark Mountains, May 4, 2013
March 18, 2013
If predicting snow is a tough business, measuring it is no piece of cake either.
Snow measurement: Ethan Gutmann checks automated equipment
March 04, 2013
A major winter storm is threatening the Washington, D.C., area this week, on the heels of record-setting snowfalls and blizzard conditions in several parts of the United States last month. Are these onslaughts catching people off guard?
Predicting snowstorms: Accumulations from blizzard photographed on February 9, 2013, in Billerica, Massachusetts
February 28, 2013
They’ve been carried by truck into supercell thunderstorms, flown on aircraft into hurricanes, and sliced and diced the atmosphere in myriad ways. Where are research radars headed next, and where will they take science and society?
Radar research: Doppler on Wheels radar unit scans a severe thunderstorm
February 25, 2013
As a step toward meeting the goal of providing earlier warnings, NCAR scientists and their colleagues are examining what enables poorly organized clusters of thunderstorms to develop into tropical storms and hurricanes.
Hurricane Forecasting: Satellite image of Tropical Storm Gaston
February 22, 2013
Satellite images have revealed at least three dramatic eye-like features not far off the U.S. Atlantic and Pacific coasts over the last several weeks. While these can look startlingly like the eyes of hurricanes, they’re not quite the same thing.
Eye-like feature within stratocumulus in coastal eddy off southern California coast
January 24, 2013
Much of the United States has felt winter’s bite this week, with fresh but frigid cold to the east and a weeks-long spell of stagnant, polluted chill to the west.
Inversion over Salt Lake City, January 2011, related to persistent cold and pollution events
January 16, 2013
New research points to gravity waves, which ripple unseen through the atmosphere, as the culprit in many cases of clear-air turbulence. If those waves can be forecast, the research suggests that planes in many cases could be rerouted around them.
gravity waves
December 31, 2012
More than two days ahead of landfall, it was clear that Hurricane Sandy could bring higher water than New York and New Jersey had seen in decades. But for thousands of people in the area, the threat simply didn’t register. (Part 1 of 2)
Hurricane Sandy storm surge-wreckage of New Jersey roller coaster
December 31, 2012
Sandy's storm surge was more than twice that of other recent tropical cyclones in the New York City area—but several other factors teamed up to bring waters to their catastrophically high level. (Part 2 of 2)
Dissecting Sandy's storm surge-graphic shows top-10 high water events at Battery Park, NYC
December 12, 2012
Though we’re still more than two weeks from the end of 2012, it’s not too soon to get a sense of how the year will go down in meteorological annals. Some of the signals from January to November are so strong that December won’t change the outcome.
Weather year in review-map showing U.S. heat, global warmth
December 11, 2012
The new system provides 8-hour forecasts of potentially dangerous atmospheric conditions over remote ocean regions
November 09, 2012
NOAA has cancelled the El Niño Watch that’s been in effect since late summer (see PDF), but this doesn't guarantee a placid U.S. winter.
Snowy street in Seattle
November 02, 2012
Every so often, a quiet corner of research suddenly grabs the spotlight. Such was the case this week when a Category 1 Atlantic hurricane morphed into Superstorm Sandy.
UCAR Magazine
October 29, 2012
Hurricane Sandy is on track to carve its way into weather annals. There will no doubt be devastating, deadly effects, along with some impacts one doesn’t expect in a hurricane.
Hurricane Sandy
October 25, 2012
Hurricane Sandy may pummel the mid-Atlantic coast early next week, possibly carving out multiple niches in U.S. weather history while producing what could easily be billions of dollars in damage.
GFDL forecast depicting of Hurricane Sandy inland near Philadelphia
October 08, 2012
First in the queue for the NCAR-Wyoming Yellowstone system is a set of 11 computing-intensive projects tackling major problems in Earth and atmospheric science.
Close-up depiction of solar turbulence


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