Articles sur Weather

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The heat makes the drought even worse, because it makes the plants more thirsty so they have to drink more. Tim J Keegan/flickr

Curious Kids: why do we have a drought?

We can't make it rain. But you are already helping if you don't use more water than you need. And you can talk to your parents about the planet getting warmer, because the heat makes drought worse.
Bundled up against the cold in downtown Chicago, Sunday, Jan. 27, 2019. AP Photo/Nam Y. Huh

How frigid polar vortex blasts are connected to global warming

Life-threatening cold temperatures in the central US are caused by changes in wind circulation in the Arctic that bring cold air south. Climate change could make these events more frequent.
Meteorologists use their own experience, which helps them to decide whether the computer’s prediction is likely to be right. AAP Image/Chris Pavlich

Curious Kids: how do people know what the weather will be?

Twice every day the Bureau of Meteorology sends out the official weather forecasts for towns and cities across Australia. Here's how we work out what to say in them.
Storm clouds move over the Illawarra south of Sydney on Wednesday, November 28 2018. Sydney received more than a month’s worth of rain in just two hours, with Observatory Hill recording 84.6mm by 7am. The November average is 83.8mm. Dean Lewins/AAP

Sydney storms could be making the Queensland fires worse

Bushfires across Queensland are fanned by high winds pushed north by a strong low in NSW.
A hot summer will mean wetlands dry out faster than ever, so how will pest mosquitoes respond? Cameron Webb (NSW Health Pathology)

Will the arrival of El Niño mean fewer mosquitoes this summer?

The forecast arrival of El Niño may mean the east coast of Australia will experience an exceptionally hot and dry summer, but does this mean there will be fewer mosquitoes buzzing about?
Heart attacks increase with lower air temperature, lower atmospheric air pressure, higher wind velocity, shorter sunshine duration and colder weather. from shutterstock.com

Heart attacks more frequent in colder weather

Doctors have long acknowledged heart attacks are more likely to occur in cold weather. But now a major study has confirmed it.
The Bureau of Meteorology’s tropical cyclone outlook is out today. AAP Image/Bureau of Meteorology, Japan Meteorological Agency

Trust Me, I’m An Expert: Cyclone season approacheth, but this year there’s a twist

Cyclone season approacheth, but this year there’s a twist. The Conversation, CC BY31,4 Mo (download)
Australia must come to terms with some fundamental shifts in our weather patterns. This month, Andrew Watkins from the BOM and climate scientist Joelle Gergis explore what's in store.
Floodwaters surround farm equipment in the aftermath of Hurricane Florence near Trenton, N.C., on Sept. 16, 2018. (AP Photo/Steve Helber)

Trump’s ‘all-out effort’ on climate is derelict and risky

Donald Trump claims his administration has carried out an "all-out effort" in preparing for the effects of climate change. Nothing could be further from the truth.
Icy hailstones can do major damage, depending where they land. AP Photo/Nati Harnik

Destructive 2018 hail season a sign of things to come

The future climate that scientists predict for the middle of the United States is one that will foster more hail events with bigger hailstones.
Sometimes air goes up past the condensation level then falls back below the condensation level, then up, then below, again and again. This creates clouds that are stripy, often with lines between the clouds. Robert Lawry/Author provided

Curious Kids: where do clouds come from and why do they have different shapes?

Clouds formed by rising warm air currents are called 'convection clouds'. Because of all the rising air coming up, these clouds can be bumpy on top, sometimes looking like cotton wool or cauliflower.
Hurricane Florence, as seen over the Atlantic Ocean on Sept. 9. NOAA NWS National Hurricane Center/Handout via REUTERS

How meteorologists predict the next big hurricane

How do experts know when and where the next big hurricane is going to hit? A look at the complicated science of forecasting.

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