February 25, 2011
The less-than-predicted amount of oil reaching coastlines after the Deepwater Horizon spill illuminates the difference between a projection and an actual forecast and the challenges of making short-term projections of natural processes that can act chaotically.
Track of Loop Current in the Gulf of Mexico
January 18, 2011
In December 2010, media dutifully reported the heavy snow that battered the northeast U.S. and the United Kingdom’s coldest December in at least 100 years. Meanwhile, the sparsely populated Canadian Arctic basked in near-unprecedented mildness.
Strong temperature anomalies across eastern Canada, mid-Dec to mid-Jan 2010/11
December 30, 2010
It's good to remind ourselves how far weather prediction has come in recent years. The ferocious winter storm that assailed the U.S. Atlantic coast in late December 2010 offers a great case in point.
A motorist near Central Park tries to enter his snowbound vehicle
December 22, 2010
Strong jet streams often plow into the West Coast in wintertime, but the heaviest rains and snows occur when the flow dips far south over the Pacific, allowing it to bring an atmospheric river of warm, moist air from the subtropics to California.
People using rowboats on streets of Sacramento
December 02, 2010
Huge temperature swings are well known to residents of the Front Range of Colorado, thanks to the arrival of sharp winter cold fronts as well as chinook-driven warm-ups.
Currents | UCAR Magazine | Boulder's tempestuous temperatures
December 02, 2010
Issuing a five-day weather forecast was once a daring enterprise. Today, we’re not only accustomed to long-range weather forecasts but also to seasonal-scale outlooks. Hurricanes and sea ice show how far we've come.
Hurricanes Igor and Julia, 15 September 2010
November 23, 2010
The periodic cooling of the eastern tropical Pacific Ocean helps bring rain to Alaska and blizzards to Colorado.
UCAR Magazine | Where it's wintry and where it's not: La Niña at the helm
November 15, 2010
As president of the American Meteorological Society, Margaret LeMone pondered communication-related issues for the 2011 annual meeting of the AMS.
David Levin (NOVA) and Tim Lim (NCAR) at VORTEX2 field project
November 02, 2010
Kevin Knupp at the University of Alabama investigates heat bursts, unusual pockets of very warm, dry air descending from thunderstorms.
Kevin Knupp
November 02, 2010
Julia Slingo from the U.K. Met Office foresees physicists and mathematicians engaging with many other disciplines to provide world-class weather and climate science and services.
Julia Slingo, UK Met Office
November 02, 2010
UCAR president Rick Anthes says the good forecasts of Hurricane Earl were not unusual. The accuracy of hurricane track forecasts has increased steadily over the years.
Hurricane Earl
October 26, 2010
A new computer simulation of a deadly, fast-spreading 2006 wildfire in California shows how far researchers have come in their quest to better understand fire dynamics.
UCAR Magazine
September 16, 2010
Can a distant hurricane play havoc with your GPS unit? Scientists aren’t sure of the answer, but they suspect that hurricanes affect more than land and water.
model simulation of wind and density in outer atmosphere
September 09, 2010
NCAR's Peggy LeMone reflects on the power of fire in the Rocky Mountain West and on her own encounter with a destructive wildfire that torched more than 100 homes in September 2010.
UCAR Magazine
September 07, 2010
The wildfire that erupted in the foothills west of Boulder in September 2010 sent a thick plume of smoke right over NCAR’s chemistry labs. Even as their offices smelled of smoke, scientists took measurements from the roof.
UCAR Magazine
August 12, 2010
Cold fronts are funny things. Sometimes they can sneak by without you knowing precisely when they’ve done so. Other times they are unmistakable.
UCAR Magazine
August 10, 2010
Just as the U.S. economy began a dramatic nosedive in 2007, so did the Arctic’s summertime sea ice. In the summer of 2010, the ice—much like the economy—continued to struggle.
Ice in the Chukchi Sea
August 09, 2010
In 1988, it was the spectre of Yellowstone National Park on fire. In 2003, it was the horror of thousands dying from heat in prosperous western Europe. The planet’s standout heat wave in 2010 plagued much of European Russia, including Moscow.
UCAR Magazine
July 23, 2010
In Kansas City and Tulsa, overnight lows have seldom dipped much below 80°F, with consistently oppressive humidity. Pulses of tropical air flowing north and east from the Gulf of Mexico are largely to blame.
CCSM CAM3 simulation of water vapor
June 09, 2010
Stephen Cavallo (University of Oklahoma) examines polar lows, a potentially significant factor in generating wintertime cyclones.
Steven Cavallo
June 09, 2010
As the public and political dialogue surrounding climate change heats up, UCAR's Jack Fellows finds that climate change science has never been more rigorous and exciting.
June 09, 2010
Rick Anthes, UCAR president, examines the unprecedented boom in the atmospheric sciences after World War II.
Earthrise from Apollo 10, December 1968
May 28, 2010
The sirens sound when the skies turn black and violent supercell thunderstorms roar through.
UCAR Magazine
May 24, 2010
The difference between El Niño and La Niña can be a huge one for U.S. weather and for global climate. A strong El Niño can nudge global temperatures upward for up to a year.
May 17, 2010
An evening baseball game brings a lesson on how temperature affects insects, and thus the behavior of insect-catching birds—in this case, a pair of western kingbirds.
Western kingbird

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