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All about weather. Learn how meteorologists forecast the weather and why some weather systems are hard to predict.
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Birds' seasonal migrations shift earlier as climate changes

17. Detsember 2019 - 0:36
In what the authors believe is one of the first studies to examine climate change impact on the timing of bird migration on a continental scale, researchers report that spring migrants were likely to pass certain stops earlier now than they would have 20 years ago. Also, temperature and migration timing were closely aligned, with the greatest changes in migration timing occurring in the regions warming most rapidly. Timing shifts were less apparent in fall, they add.
Kategooriad: Välismaa uudised

Finding a killer electron hot spot in Earth's Van Allen radiation belts

13. Detsember 2019 - 18:54
JAXA and NASA satellite observations show where killer electrons are generated in the Van Allen radiation belts surrounding Earth.
Kategooriad: Välismaa uudised

Climate cycles and insect pests drive migration timing of reindeer's North American cousin

12. Detsember 2019 - 22:33
Biologists have discovered two unexpected drivers for migration timing that dispute long-held assumptions and provide insight into potential future effects of climate change on caribou. First, the start of migration is synchronized across North America and tied to large-scale, ocean-driven climate cycles. Second, warm, windless summers that favored insect pests lead to poorer maternal health and delayed arrivals at the calving grounds the following spring.
Kategooriad: Välismaa uudised

Mountain goats' air conditioning is failing, study says

11. Detsember 2019 - 21:56
A new study says Glacier National Park's iconic mountain goats are in dire need of 'air conditioning.'
Kategooriad: Välismaa uudised

Community characteristics shape climate change discussions after extreme weather

9. Detsember 2019 - 20:20
Political affiliations, the presence of local environmental organizations and prior local media coverage of climate change play a role in how a community reacts to an extreme weather event, according to new research.
Kategooriad: Välismaa uudised

Closing critical gap in weather forecasting

7. Detsember 2019 - 14:35
Scientists working on the next frontier of weather forecasting are hoping that weather conditions 3-to-4 weeks out will soon be as readily available as seven-day forecasts. Having this type of weather information--called subseasonal forecasts--in the hands of the public and emergency managers can provide the critical lead time necessary to prepare for natural hazards like heat waves or the next polar vortex.
Kategooriad: Välismaa uudised

Damaging rains from hurricanes more intense after winds begin to subside

5. Detsember 2019 - 20:05
Howling wind drives torrential rain sideways as tall, slender palms bow and tree limbs snap. A hurricane approaches, its gale-force winds wreaking havoc as it nears the coast. Storm surges combine with the downpour, inundating the area with water.
Kategooriad: Välismaa uudised

Atmospheric river storms create $1 billion-a-year flood damage

4. Detsember 2019 - 22:28
Researchers found that flooding has caused nearly $51 billion in damages to western states in the last 40 years. More than 84 percent of these damages were caused by atmospheric rivers (ARs), long narrow corridors of water vapor in the atmosphere capable of carrying more than twice the volume of the Amazon river through the sky.
Kategooriad: Välismaa uudised

Outlook for the polar regions in a 2-degrees-warmer world

4. Detsember 2019 - 21:49
With 2019 on pace as one of the warmest years on record, a major new study reveals how rapidly the Arctic is warming and examines global consequences of continued polar warming. The study reports that the Arctic has warmed by 0.75 degrees C in the last decade alone.
Kategooriad: Välismaa uudised

A missing link in haze formation

25. November 2019 - 22:30
Hazy days don't just block the view; they mean the air contains particulate matter that can compromise human health. Chemists have now discovered a way that alcohols can balance out the formation of new particles, a finding that could improve the accuracy of air-quality forecasts.
Kategooriad: Välismaa uudised

Meeting the challenges facing fisheries climate risk insurance

25. November 2019 - 19:09
Insurance schemes with the potential to improve the resilience of global fisheries face a host of future challenges, researchers say.
Kategooriad: Välismaa uudised

Dead-zone report card reflects improving water quality in Chesapeake Bay

21. November 2019 - 0:56
The 2019 'dead-zone' report card for Chesapeake Bay indicates that the volume of low-oxygen, 'hypoxic' water was on the high end of the normal range, a finding that scientists consider relatively good news given the unfavorable weather conditions.
Kategooriad: Välismaa uudised

Pollution from Athabasca oil sands affects weather processes

18. November 2019 - 18:53
Scientists have been looking at pollution affecting the air, land and water around the Athabaska Oil Sands for some time. After looking at contaminants in snow taken from up-to 25 km away from the oil sands, a McGill-led scientific team now suggests that oil sand pollution is also affecting the weather patterns in the surrounding regions.
Kategooriad: Välismaa uudised

When reporting climate-driven human migration, place matters

13. November 2019 - 22:31
Location matters when talking about how climate might or might not be driving migration from Central America. Climate research in the dry corridor region revealed a complex pattern of change. If you average across the entire region you wouldn't see a trend going either way.
Kategooriad: Välismaa uudised

Stalled weather patterns will get bigger due to climate change

13. November 2019 - 14:51
Climate change will increase the size of stalled high-pressure systems that can cause heat waves, droughts and other extreme weather, according to a new study.
Kategooriad: Välismaa uudised

Deep neural networks speed up weather and climate models

12. November 2019 - 23:49
A team of environmental and computation scientists is using deep neural networks, a type of machine learning, to replace the parameterizations of certain physical schemes in the Weather Research and Forecasting Model, an extremely comprehensive model that simulates the evolution of many aspects of the physical world around us.
Kategooriad: Välismaa uudised

This is what the monsoon might look like in a warmer world

12. November 2019 - 18:02
In the last interglacial period on Earth about 125,000 years ago, the Indian monsoon was longer, more extreme and less reliable than it is today. This is the conclusion drawn after analyses of a dripstone from a cave in north-eastern India, combining various methods that provide information about supra-regional and local weather phenomena and the climate dynamics of the past.
Kategooriad: Välismaa uudised

Hurricanes have become bigger and more destructive for USA

11. November 2019 - 22:06
A new study shows that hurricanes have become more destructive since 1900, and the worst of them are more than 3 times as frequent now than 100 years ago. A new way of calculating the destruction unequivocally shows a climatic increase in the frequency of the most destructive hurricanes that routinely raise havoc on the North American south- and east coast.
Kategooriad: Välismaa uudised

Turbulence creates ice in clouds

8. November 2019 - 17:28
Vertical air motions increase ice formation in mixed-phase clouds. This correlation was predicted theoretically for a long time, but could now be observed for the first time in nature. Using laser and radar equipment, the team measured the vertical air velocity and ice formation in thin mixed-phase clouds.
Kategooriad: Välismaa uudised

Using AI to predict where and when lightning will strike

8. November 2019 - 14:48
Researchers have developed a novel way of predicting lightning strikes to the nearest 10 to 30 minutes and within a radius of 30 kilometers. The system uses a combination of standard data from weather stations and artificial intelligence.
Kategooriad: Välismaa uudised

28. jaanuari ekstreemumid 2010-2020


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Ennustuse täpsuse jooksva kuu parimad



Täna Tallinnas kõige soojem on olnud 6,9°C (1992) ja külmem -26,3°C (1862).

Täna Tartus kõige soojem on olnud 6,5°C (1989) ja külmem -27,0°C (1967).


Ilmateenistuse hoiatused

28.01 õhtul tugevneb alates lahe lääneosast kagutuul puhanguti 15 m/s.
28.01 õhtul tugevneb alates lahe lääneosast kagutuul puhanguti 15 m/s.
Kagutuul 12, puhanguti 15-17 m/s.
Kagutuul 12, puhanguti 15-17 m/s.
Kagutuul 13, puhanguti kuni 18 m/s.
lõuna- ja kagutuul 8, puhanguti 11 m/s.


Statistika: METRIX.Station


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