Do all snowflakes have unique shapes?

Do all snowflakes have unique shapes?

Do all snowflakes have unique shapes? A snowflake from the Bentley Collection Wilson Bentley on YouTube/Weather Channel, and snowflake

How does a lake freeze?

How does a lake freeze?

How does a lake freeze? Enlarge Photo: NOAA Ice forming around the shore of Lake Michigan Lakes freeze from the top down. Ice is less

How does frost form?

How does frost form?

How does frost form? Heavy frost on Burr Oak tree in Wisconsin Frost on objects is just water vapor in the air that has condensed as

Is global warming real?

Is global warming real?

Is global warming real? Image: NASA Over the past two decades, the global average surface temperature has increased noticeably. This

What is the jet stream?

What is the jet stream?

What is the jet stream? Photo: NOAA The jet stream is a narrow current of strong wind that blows through the upper regions of the

How accurate are weather forecasts?

How accurate are weather forecasts?

How accurate are weather forecasts? Image: NOAA In general, weather forecasts are getting better, due to improvements in computer

What are heating degree-days?

What are heating degree-days?

What do heating degree-days tell us? Each degree that the mean temperature is below 65 degrees F is one heating degree-day. So if

What is space weather?

What is space weather?

What is space weather? Space weather describes the conditions in space that affect Earth and its technological systems. Space weather

What is the dewpoint temperature?

What is the dewpoint temperature?

What is the dewpoint temperature? Dew on evergreens, by Michael Theberge at NOAA Think of a morning when you walked on a grass lawn or

How does weather radar work?

How does weather radar work?

A radar unit consists of a transmitter and a receiver. The transmitter emits pulses of microwaves, a type of radio waves, outward in a More »

Why are clouds white?

Why are clouds white?

Why are clouds white? Photograph of Cumulus clouds in fair weather taken by Michael Jastremsk Clouds are made of water and clean water