All tornadoes -- whether large or small -- originate from thunderstorms, but not all thunderstorms are the same. Nighttime twisters, summer tornadoes and smaller events can be tougher to forecast. New research in the Bulletin of the American Meteorological Society presents a method for rating the skill of tornado warnings based on environmental challenges.
The answer is important for understanding how the Earth system is responding to climate change.
New analyses of global air measurements show that five years after an unexpected spike in emissions of the banned ozone-depleting chemical chlorofluorocarbon CFC-11, they dropped sharply between 2018 and 2019.
New research indicates that man-made clouds formed along shipping routes dissipate too quickly to provide insight into the cooling effect of naturally occuring marine clouds.
Known for precipitating outbreaks of Arctic air, stratospheric events in polar regions often cause other kinds of extreme weather. Since the stratosphere takes a long time to recover after these events, scientists may be able to improve predictability of extreme weather weeks ahead of time.
Results from a 2016 research cruise show ocean acidification has interfered with shell development of zooplankton that are a critical part of the marine food web.
NIDIS, NOAA’s National Integrated Drought Information System, has launched a redesigned U.S. Drought Portal to better serve stakeholders, decisionmakers, the media, and the public.
From its inception as an experiment to improve forecasts for aviation, to its transition of its final update to NOAA National Weather Service operations, the Global Systems Laboratory’s pioneering High-Resolution Rapid Refresh weather model established a remarkable resume of research accomplishments.
A new book published by the American Geophysical Union provides first detailed examination of how climate change may influence El Niño and La Niña.
A new, fine-scale modeling approach developed by NOAA and CIRES scientists now projects that there will still be enough high-elevation snow by the middle of the 21st Century to support - according to federal biologists - the denning habits of one iconic North American mountain-dweller, the wolverine.