August 25, 2010
NCAR scientists are collaborating with the Centers for Disease Control and Prevention to help fight plague in Uganda. Plague is believed to have been responsible for the Black Death pandemic that swept Europe in the 14th century, killing more than 25 million people.
Two rats crawling in a house.
August 18, 2010
A windstorm that swept across Kansas, Missouri, and Illinois on May 8, 2009, was so remarkably fierce that NCAR scientists coined a new term to describe it: super derecho.
Two images side by side, the first from radar and the second from the WRF model.
July 27, 2010
A turbulence warning system alerting pilots landing at and departing from Juneau International Airport in southeast Alaska has taken a significant step toward completion with the integration of Federal Aviation Administration radio communications into the system.
Photo of mountains and ocean around Juneau, taken from the air.
July 20, 2010
Researchers and aircraft will search for secrets of hurricane formation above the tropical Atlantic Ocean.
Hurricane Felix satellite image
June 17, 2010
In the spring of 2009, researchers on the Second Verification of the Origins of Rotation in Tornadoes Experiment (VORTEX2) field project set out across the Great Plains to study tornadoes, but that’s not the only phenomenon they observed.
A truck driving down an empty highway with a menacing storm in the background.
June 14, 2010
Turboprop and jet aircraft can create hole-punch clouds, which have long fascinated the public.
hole-punch cloud
June 10, 2010
They’ve been called “crop circles in the sky.” Across the world, sightings of oddly circular holes within cloud layers—dubbed hole-punch clouds by scientists—have triggered bemusement and speculation.
Andy Heymsfield
June 09, 2010
Cirrus clouds—thin strands or sheets usually composed of ice crystals—form high in the atmosphere. A new study led by NCAR scientist Steve Massie employs satellite technology to observe the clouds in greater detail than before.
Thin, wispy cirrus clouds in the sky.
June 09, 2010
Stephen Cavallo (University of Oklahoma) examines polar lows, a potentially significant factor in generating wintertime cyclones.
Steven Cavallo
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 17, 2010
The year 2010 brought a difficult and sometimes tragic few months of weather events—first the snowstorms and record cold that battered much of the Northern Hemisphere, then tornadoes and floods in the United States.
Atlantic sea-surface temperatures, May 2010
May 11, 2010
After a very unusual tornado caused extensive damage along a 34-mile (55-kilometer) swath of northern Colorado in 2008, a team of scientists from NCAR and Colorado State University undertook a multidisciplinary study integrating meteorology, climatology, and social science.
Radar image of Windsor tornado.
April 28, 2010
The collaborative international project, involving scientists from NCAR and other organizations, may ultimately improve tornado forecasting.
February 25, 2010
Like a cat toying with its prey, an intense area of low pressure took swipes at New England and the mid-Atlantic.
UCAR Magazine
February 08, 2010
Residents of the mid-Atlantic can be forgiven if they’re craving a bit of calm. The weekend of 5–6 February brought what’s been variously dubbed Snowpocalypse II, Snowmageddon, Snowtastrophe, and the Superbowl Superstorm.
UCAR Magazine
January 15, 2010
The giant comma-shaped storm systems that traverse the Midwest from fall through spring carry more than a few secrets. Radar, lidar, and profiler beams are now slicing through those storms, hunting for small-scale features that normally go unobserved.
Researchers prepare radiosonde for launch
January 08, 2010
No matter how you slice it, the last few weeks have been consistently wintry across large chunks of North America and Eurasia.
AO index for September 2009-January 2010
November 06, 2009
How do people and organizations respond to extreme weather events—in particular, flash floods? Flash floods are already on average the leading cause of weather-related fatalities in the United States and second most common worldwide.
Flooded highway.
November 01, 2009
Dione Lee Rossiter, University of California, Santa Cruz • This Ph.D. student studies clouds, especially over the subtropical ocean—the area just north and south of the tropics. She's interested in their invisible physical changes, or microphysics, and a whole lot more.
Dione Lee Rossiter
September 11, 2009
This spring the second Verification of the Origins of Rotation in Tornadoes Experiment (VORTEX2, or V2) captured one tornado in unprecedented detail, as well as a number of potentially tornadic thunderstorms that never made the grade.
A W-band radar capturing the end stages of the 5 June tornado
September 11, 2009
Eleven days can go by in no time, but their brevity was accentuated for 27 graduate students at a summer colloquium on 1–12 June. The goal was to give students a taste of fieldwork by having them organize and conduct mini–field experiments and draw meaningful results from the data.
Students catch a glimpse of the University of Wyoming King Air in flight
August 27, 2009
A team of NCAR researchers led by Jacob Fugal is developing and testing a specialized instrument that uses digital holography to measure tiny cloud droplets.
HOLODEC 2 installed on Gulfstream V aircraft.
May 07, 2009
Using a highly efficient modeling technique, Pablo Ortiz (University of Granada) and Piotr Smolarkiewicz (ESSL/MMM) have simulated the role of winds in forming sand dunes and sandholes.
Sand dunes in the Atacama Desert
May 04, 2009
The largest and most ambitious tornado study in history will begin next week, as dozens of scientists deploy radars and other ground-based instruments across the Great Plains to gain a better understanding of these often deadly weather events.
still from animation of tornado visualization

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