Weather

A large band of warmer than average sea surface temperatures, an indicator of El Niño, stretches across the Pacific

Gear Up for a Scorcher of a Year: El Niño Has Officially Arrived

It’s later than usual and weak, but definitely here

The First Photos of Free-Falling Snowflakes Reveal Their Imperfections

Collisions in mid-air often produce ice crystal aggregates, rather than single symmetrical flakes

Skiing toward the breaking waves on a slush-covered beach.

How "Slurpee" Waves Formed Along a Nantucket Beach

New England's record cold created the perfect conditions for waves of slush, offering an unusual opportunity to ski on the beach

See the Winter of Our Discontent…From Space

NASA photo of the eastern United States confirms it’s really, really cold out there

Spire’s Austin Ellis shows off a satellite frame at Spire's San Francisco headquarters. Components, like the weather sensor, stack on top of each other inside the frame. Solar panels and antennae fold out from the frame once the device is in orbit.

New Satellite Network Launching This Year Aims to Improve Weather Forecasting

With a network of compact, low-cost weather satellites with smartphone-like internals, startup Spire plans to make future forecasts a lot more reliable

The Hopkins' Rose nudibranch, or pink sea slug.

What’s Causing California’s Bright Pink Sea Slug Bloom?

They might be fun to look at, but they're not necessarily good news

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Use This Map to Track the Snowfall and Social Media Buzz Around the Northeast Blizzard

Weather alerts and media streams can keep you up to date on the full extent of the nor'easter

There is A Scientific Reason That Cold Weather Could Cause Colds

The rhinovirus that most commonly causes colds likes chillier temperatures, where the host's immune system doesn't fare so well

A summer thunderstorm in Utah

Cloud Seeding Study Suggests We Could Boost Rain And Snow by 15 Percent

After comparing the effect of cloud seeding generators on snowfall in two nearby mountain ranges, researchers think a program might help

A Megalodon tooth -- not the one found recently in California

Fossil Hunting Is Best After Big Storms

California’s storms unearthed treasures along beaches and in foothills including a Megolodon tooth and a Steller’s sea cow ribs

Even A/C Can't Keep Our Economies From Slacking Off on Hot Days

As global warming turns up the temperature on the planet, it's going to be tougher to get anything done

Typhoons Saved 13th Century Japan From Invasion

Geologic evidence supports historic accounts of the great "Kamikaze" of 1274 and 1281

Yum.

Butter And Olive Oil Prices Spike

The world is about to become much less tasty

A scene from a lake-effect snow storm last year in Evans, New York

After the Storm: Floods of Dumped Milk And Melting Snow in Western New York

More than five feet of snow, and up to eight in some places, over such as short time period is a lot to deal with

This Awesome Synthesizer Turns the Weather Into Song

Hear the pitter-patter of rain in a new way

This F3 twister in Kansas was part of a mini-outbreak of tornadoes in 2004.

Tornadoes Are Now Ganging Up in the United States

Twisters are not increasing in numbers but they are clustering more often, a bizarre pattern that has meteorologists stumped

The World Experienced Record-Breaking Weather This August

Last month was the warmest August on record since record-keeping began

In the public imagination, heat waves remain a B-list natural disaster.

Forecasters Will Soon Be Able to Predict Heat Waves Weeks in Advance

In the public imagination, heat waves remain a B-list natural disaster, but in reality, they are deadly

A NASA satellite image shows Hurricane Iselle approaching Hawaii, with Hurricane Julio hot on its heels.

What Happens When a Hurricane Meets a Volcano?

When Iselle crosses the Big Island of Hawaii, it will offer a rare glimpse at a clash of the titans

Satellite view of Hurricanes Iselle (left) and Julio (right) approaching Hawaii. From NASA's Aqua satellite

Hawaii Braces for Two Hurricanes—Its First in 22 Years

Hawaii doesn't see direct hits from hurricanes very often

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