Weather Articles

Tornado Watches Issued: Severe Weather Outbreak In Progress in the Deep South, Gulf Coast: Very Large Hail, Intense Tornadoes Possible

By Linda Lam
January 21, 2017

It may be January, but severe weather is ongoing in the Deep South and Gulf Coast.

Dangerous Flooding Strikes California, Arizona; Several Rescues Reported

By Sean Breslin
January 21, 2017

Here's what we know about this frightening situation.

Emergency Declared after Tornado Kills 4 in Hattiesburg, Mississippi; Storms Leave Damage in Alabama, Georgia

By Robert Martin and Eric Chaney
January 21, 2017

At least four people have died in a severe weather outbreak across the South. Here's the latest.

Early Week Nor'easter Will Bring Mostly Rain, Wind

By Linda Lam
January 21, 2017

A late-January storm in the Northeast usually brings thoughts of snow, but not this year.

Late-Weekend Storm Will Pound California and Could Become a Plains, Midwest Snowmaker

By Chris Dolce
January 21, 2017

More heavy rain and snow will hit California before becoming a potential Plains and Midwest snowmaker.

Climate Change Could Bring More Lake-Effect Snow – For a Few Decades

By Brian Donegan
January 21, 2017

The Earth's climate may be warming, but lake-effect snow could actually be on the increase – for a while, at least.

9 Survivors Pulled From Italian Hotel Buried in Avalanche

By Sean Breslin
January 21, 2017

Saturday rescues raised to at least nine the number of people found alive in the rubble of Wednesday's avalanche.

Winter Storm Kori Will Bring Mostly Rain, Wind to the Northeast

By Linda Lam
January 20, 2017

A late-January storm in the Northeast usually brings thoughts of snow, but not this year.

Roads Reopened in Northwest as Winter Storm Kori Takes Aim at California, Arizona

By Sean Breslin
January 20, 2017

Kori has caused big travel problems in the Pacific Northwest, but is now moving on to another area. Here's the latest.

Winter Storm Kori to Produce Feet of Sierra Snow and Flooding Rain in California

By Linda Lam
January 20, 2017

Yet another round of mountain snow and heavy rain is impacting the West.

EF2 Tornado Confirmed in Southern Mississippi as Severe Weather Outbreak Threatens Deep South

By Associated Press
January 20, 2017

The National Weather Service said an EF2 tornado was in progress Thursday morning, leaving damage in the town of Magee, Mississippi.

Spring 2017 Temperature Outlook: Warmth to Persist in the South

By Linda Lam
January 20, 2017

As La Niña comes to an end this spring, the best chance for above-average temperatures will be in portions of the South.

Thousands Trapped in Vehicles as Heavy Snow Shuts Down Spanish Highway

By Associated Press
January 20, 2017

Heavy snowfall cut off several roads in eastern Spain and forced thousands to spend the night in their vehicles.

Toxic Smog Alert Issued In Britain; 'Air In London Is a Killer', Mayor Says

By Eric Chaney
January 20, 2017

Mayor Sadiq Khan called the situation a “public health emergency.”

Can We Turn Back the Deserts In an Age of Climate Change?

By Sami Grover
January 20, 2017

Thanks to climate change, drought- and desertification-prone regions will need to start making plans for holding back the deserts and keeping landscapes green. Fortunately, there’s some precedent out there for doing just that.

Inauguration Day 2017 Will Be Wet and Mild

January 19, 2017

An incoming low-pressure system may bring rainy weather to Washington D.C. on Friday.

Winter Storm Kori to Produce Feet of Sierra Snow and Flooding Rain in California

By Linda Lam
January 19, 2017

Yet another round of mountain snow and heavy rain is impacting the West.

The Science Behind Moonbows, or Rainbows Seen at Night

By Jonathan Belles
January 19, 2017

We discuss the science behind lunar rainbows, otherwise known as moonbows.

Widespread January Thaw Grips the Central, Eastern States Into Early Next Week

By Brian Donegan
January 18, 2017

Mild temperatures will grip the eastern half of the nation into early next week.

Significant Severe Weather Threat May Develop in the South This Weekend as Rounds of Rain Impact the Region

By Linda Lam
January 18, 2017

Rounds of rain and thunderstorms will impact the South through this weekend.

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Featured Blogs

More than 20 Deaths Feared in Italian Hotel Buried by Avalanche

By Dr. Jeff Masters
ianuarie 20, 2017

An unusually frigid and snowy winter across southern Europe delivered its most dramatic blow yet on Wednesday evening, when a four-star resort in central Italy was buried in an avalanche. Six survivors were found on Friday, but more than 20 other people inside the hotel may have perished. The avalanche was fueled by extreme snowfall across the mountains of central Italy, part of a weeks-long siege of cold and snow from Europe into far northern Africa. Meanwhile, another weekend of wild weather is in store for much of California as well as the Gulf Coast states.

U.S. 24-hour State and City Snowfall Records

By Christopher C. Burt
decembrie 20, 2016

Winter has descended with a vengeance for much of the nation this December. Although heavy snow has fallen in many areas no all-time snow records have yet been set so far with the exception of Binghamton, New York where a new single-storm snowfall record of 27.6” occurred on November 19-22. However, the city’s 24-hour snowfall record of 23.0” on February 2-3, 1961 was not matched. Here is a brief summary of the greatest 24-hour snowfall records set in each state and at a selection of 70 or so major sites in the U.S.

An extraordinary meteorological event; was one of its results a 1000-year flood?

By Stu Ostro
octombrie 5, 2015

The confluence of meteorological ingredients the first weekend in October 2015 resulted in an extraordinary weather event with severe impacts. Was one of them a 1000-year flood?

Why the Arrest of a Science-Loving 14-year-old Matters

By Shaun Tanner
septembrie 16, 2015

By now, many of you have heard or read about the arrest of Ahmed Mohamed, a 14-year-old high school student from Irving, Texas. Ahmed was arrested because school officials called the police after he showed one of his teachers his homemade clock. Mistaken for a bomb, Ahmed was taken into custody, interrogated, shamed, suspended (still on suspension today, Wednesday), and reprimanded. All of this after it has been found that the "device" he brought to school was indeed, a homemade clock.

2013-14 - An Interesting Winter From A to Z

By Tom Niziol
mai 15, 2014

It was a very interesting winter across a good part of the nation from the Rockies through the Plains to the Northeast. Let's break down the most significant winter storms on a month by month basis.

What the 5th IPCC Assessment Doesn't Include

By
septembrie 27, 2013

Melting permafrost has the potential to release an additional 1.5 trillion tons of carbon into the atmosphere, and could increase our global average temperature by 1.5°F in addition to our day-to-day human emissions. However, this effect is not included in the IPCC report issued Friday morning, which means the estimates of how Earth's climate will change are likely on the conservative side.

Recent Infographics

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To understand the science behind El Niño, and the associated precipitation, checkout this infographic by Weather Underground.

Why the Sky is Blue

Finally, childhood questions answered. Find out why the sky is blue in our latest graphic.