Latest Meteorology Stories
WASHINGTON, March 4, 2013 /PRNewswire-USNewswire/ -- Congressman Chaka Fattah (D-PA-02), the lead Democratic appropriator with responsibility for federal weather agencies, will deliver an address Tuesday morning to hurricane and cyclone forecasters on the challenges and outlook for federal funding of weather-related research. Fattah will keynote the opening session of the 67th Interdepartmental Hurricane Conference/Tropical Cyclone Research Forum Tuesday at 8 a.m. in College Park,...
Physikalisch-Technische Bundesanstalt A humidity sensor developed by the Physikalisch-Technische Bundesanstalt (PTB), the SEALDH laser hygrometer, has proven its worth when used aboard an aircraft; it fulfills all pre-conditions to be used as a transfer standard for conventional humidity-measuring instruments. This would allow the quality of air humidity measurements in the Earth's atmosphere - and, thus, also climate model computations - to be improved. Humidity measurements in the...
Daily weather forecast and wrap-up provided by redOrbit meteorologist Joshua Kelly. redOrbit Meteorologist Joshua Kelly Big Story Weather from March 1-3: The cold weather that hit the Gulf Coast and Southeast caused some minor damage to crops in Florida over the weekend. The other big story of the weekend was the development of our next powerful storm system which is moving into the Plains today. Weather Outlook for March 4: High pressure over Florida will bring a nice day...
Alan McStravick for redOrbit.com - Your Universe Online In recent years, we have seen a severe uptick in the frequency and strength of tornadoes that strike from the south through the Midwest of the United States. In April of 2011, a month that regularly records an average of 161 tornadoes, a record 758 tornadoes were documented. A new study out of the University of Iowa wanted to explore how residents, caught in the direct path of a previous tornado, viewed their chances of possible...
[ Watch the Video: Talking Tornadoes with Tim Samaras ] Alan McStravick for redOrbit.com - Your Universe Online On December 26, 2004, we learned of the importance that early warning systems can play in preventing loss of life when the great Indonesian tsunami caught locals and vacationers alike by surprise. In contrast, on March 11, 2011, the early warning system, while unable to prevent tens of thousands of human casualties, was effectively responsible for preventing a greater loss of...
NASA researchers have begun a series of flights using the agency's DC-8 flying laboratory to study the effects of alternate biofuel on engine performance, emissions and aircraft-generated contrails at altitude. The Alternative Fuel Effects on Contrails and Cruise Emissions (ACCESS) research involves flying the DC-8 as high as 40,000 feet while an instrumented NASA Falcon HU-25 aircraft trails behind at distances ranging from 300 feet to more than 10 miles. "We believe this study will...
redOrbit Staff & Wire Reports - Your Universe Online Researchers from the University of California, San Diego (UCSD) and the National Oceanic and Atmospheric Administration (NOAA) have demonstrated for the first time that dust and other aerosols from one part of the world can influence rainfall in regions thousands of miles away. The study is part of the CalWater field campaign – an initiative funded by the California Energy Commission and designed to help states in the western US...
WASHINGTON, March 1, 2013 /PRNewswire-USNewswire/ -- NASA researchers have begun a series of flights using the agency's DC-8 flying laboratory to study the effects of alternate biofuel on engine performance, emissions and aircraft-generated contrails at altitude. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) The Alternative Fuel Effects on Contrails and Cruise Emissions (ACCESS) research involves flying the DC-8 as high as 40,000 feet while an instrumented NASA...
Daily weather forecast and wrap-up provided by redOrbit meteorologist Joshua Kelly. redOrbit Meteorologist Joshua Kelly Big Story Weather from February 28: The Northeast saw snow showers and very strong winds around the Maine area, while the majority of the country saw partly cloudy skies and colder conditions, and the Northwest saw some showers yesterday. Weather Outlook for March 1: An upper level trough will move through the Tennessee River Valley bringing with it some light...
WASHINGTON, Feb. 28, 2013 /PRNewswire-USNewswire/ -- NASA's Van Allen Probes mission has discovered a previously unknown third radiation belt around Earth, revealing the existence of unexpected structures and processes within these hazardous regions of space. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) Previous observations of Earth's Van Allen belts have long documented two distinct regions of trapped radiation surrounding our planet. Particle detection instruments...
Latest Meteorology Reference Libraries
An urban heat island (UHI) is a metropolitan area that is drastically warmer than its surrounding rural areas because of human activities. The phenomenon was first looked into and described by Luke Howard during the 1810s, although he wasn’t the one to name the phenomenon. The difference in temperature is normally bigger at night as opposed to during the day, and it most obvious when winds are weak. Seasonally, UHI is seen during the summer and the winter. The key cause of the urban heat...
Climate change is a substantial and lasting change in the statistical distribution of weather patterns over periods of time ranging from decades to millions of years. It might be a change in the average weather conditions, or in the distribution of weather around the average conditions. Climate change is a result of factors that include oceanic processes, biotic processes, variations in solar radiation received buy Earth, volcanic eruptions, and plate tectonics, and human induced alterations...
Surface Dew-points can play a huge role in weather forecasting. The first such role is that it helps determine the amount of moisture in the atmosphere for a given point. If we look at the current dew-point map above from January 28, 2013 we can note several things of interest. First, if we look at where the black circle is around the number 70, we can make note that this air right off the coast of Texas is at a dew point of 70F. The temperature outside must be above 70F, because the...
Air mass thunderstorms are found in marine time tropical air. In short they are also known as MT Thunderstorms. Air mass thunderstorms represent what is known as the common three stage thunderstorm development. This means that an air mass thunderstorm goes through the stages of Cumulus which is represented by the updrafts only being present; secondly it moves into the mature stage where it has both updrafts and downdrafts; finally it goes into the dissipating stage where you see only the...
In this lesson we are going to take a look at super-cell thunderstorms and what they mean and how they impact our daily lives. First, a super-cell thunderstorm is formed from a cumulus-nimbus cloud. Super-cell thunderstorms are the most advanced form of thunderstorms known on earth. This is because these types of thunderstorms need so many things to come together in the atmosphere at the same time. The first thing they need is the warm moist air at or near the surface. Secondly, is...
