Weather Articles

New Cloud Types Added For the First Time in 30 Years

By Chris Dolce
March 22, 2017

One cloud species has been named volutus. It's more commonly known as a roll cloud.

Severe Thunderstorm Threat, Including Tornadoes, Kicks Off Late Thursday in Plains, Sweeps Into South Friday, Saturday

By Jonathan Belles
March 22, 2017

Spring's first week will feature a severe weather threat.

5 Best and Worst U.S. Cities in Winter 2016-17

By Jon Erdman
March 22, 2017

One location shows up in both the worst and best winter lists – for good reason.

One Killed in Georgia as Severe Thunderstorms Rattle the South

By Andrew MacFarlane and Sean Breslin
March 22, 2017

Here's the latest on the round of severe weather to sweep through the Southeast.

'Marchuary' Continues in Northeast as New Cold Blast Moves Into Region

By Brian Donegan
March 22, 2017

The chilly March across the Northeast is expected to continue with a new blast of cold air this week.

California's Wet Pattern Returns; Mountain Snow to Add to Impressive Western Snowpack

By Jon Erdman
March 22, 2017

Wet weather is back after a recent and welcomed respite in the Golden State.

With More Than 300 Tornadoes, It's the Most Active Start to a Year Since 2008

By Chris Dolce
March 21, 2017

The year is off to a tornadic start.

This Was Your Coldest Temperature of Winter 2016-17 and When It Occurred

By Brian Donegan
March 21, 2017

What were the coldest temperatures where you live in winter 2016-17?

Tornadoes in the Southeast May Be Influenced by Mountainous Terrain; VORTEX-SE Project Investigating This Spring

By Chris Dolce
March 20, 2017

Scientists are hoping to find out more this spring.

Evacuation Orders Lifted for Wildfire Burning near Boulder, Colorado

By Pam Wright and Sean Breslin
March 20, 2017

Here's the latest on the Sunshine fire, burning west of Boulder, Colorado.

Vernal Equinox: Science Behind the First Day of Spring 2017

March 20, 2017

Today is the Vernal Equinox, which is more commonly known as the First Day of Spring.

Wildfire Near Boulder, Colorado, Prompts Evacuations

By Pam Wright
March 19, 2017

The latest on the Sunshine fire, burning west of Boulder, Colorado.

Pattern Change Will Bring Return of Rain, Snow to California, Warmer Temperatures in Plains and South

By Linda Lam
March 19, 2017

If you think the weather has been in a rut lately, the week ahead will bring changes for many.

Snow Spreads Through Mid-Atlantic and Cape Cod Sunday

By Linda Lam
March 19, 2017

Don't worry. It's not another Stella. Just another wintry nuisance

The Two Warmest Februaries on Earth Since 1880 Have Occurred the Past Two Years

By Jon Erdman
March 18, 2017

Independent analyses once again find global temperatures among the warmest since the last 19th century.

Matthew Parker, President of the American Meteorological Society, Dies at Age 53

By Jon Erdman
March 18, 2017

The meteorological community is mourning a major loss.

Winter Storms 2016-17: The Season So Far

By Jonathan Belles
March 17, 2017

The West, including Portland, has been hammered this year by a dozen winter storms so far.

White House: Climate Funding Is ‘A Waste of Your Money’

By Pam Wright
March 17, 2017

Trump's budget cut hits hard on climate change programs.

7 Cities with Unlucky St. Patrick's Day Weather

By Linda Lam
March 17, 2017

The luck of the Irish hasn't been with these places when it comes to weather.

Late-Spring Outlook Calls For Mild Conditions Across South and East, Which Could Lead to Hot Summer Start

By Chris Dolce
March 17, 2017

Warmer-than-average conditions are expected for many in the southern and eastern states through June.

Ad Blocker Enabled

Featured Blogs

It’s Time to Give Air Quality the Attention It Deserves

By Dr. Jeff Masters
March 22, 2017

More than 10,000 lives are lost worldwide every 24 hours as a direct or indirect consequence of poor air quality. WU intends to do its part in raising air quality awareness by expanding our international network of personal weather stations into the realm of air quality.

California Precipitation: From Famine to Feast

By Christopher C. Burt
February 25, 2017

It’s amazing what a difference one year can make. California’s five-year long drought has come to a dramatic halt (or at least interruption) this winter season. The latest California Drought Monitor report, released on February 23rd, has no portion of the state under ‘Extreme Drought’ conditions for the first time in four years. Last year on this date 61% of state was enduring such.

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

By Stu Ostro
October 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
September 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
May 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
September 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

Storm Surge

Storm Surge terms described and defined in the Storm Surge infographic by Weather Underground.

El Niño

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.