Weather Articles

Here Are the 187 Mayors and 10 Governors Who Denounce Trump’s Withdrawal from the Paris Climate Agreement

By Pam Wright
June 3, 2017

Governors and mayors across the nation are denouncing Trump's decision to pull out of the Paris Climate Accord.

Strong, Severe Thunderstorms Expected Across Midwest, Northeast Into Early Week

By Linda Lam
June 3, 2017

The risk of severe thunderstorms will return to start June in parts of the northern Plains, Midwest and Northeast.

5 Things To Know About Next Week's Weather

By Linda Lam
June 3, 2017

It won't feel like summer for much of the East next week, but the West will heat up again.

Tropical Development Ahead? Gulf Coast Heavy Rain Threat, Regardless, Including Drought-Suffering Florida

By Jon Erdman
June 3, 2017

Whether it does or not, there's one threat regardless.

Tropical Storm Beatriz Triggers Mudslides in Mexico; 3 Dead, 1 Missing

By Pam Wright
June 2, 2017

Here's the latest on Tropical Storm Beatriz.

Parts of Throckmorton, Texas, Evacuated Due to Flooding

By Sean Breslin
June 2, 2017

Floodwaters rose rapidly in Throckmorton, Texas, Friday afternoon, leading to some evacuations.

Why Is China So Committed to Fighting Climate Change?

By Pam Wright
June 2, 2017

China doubles down on its commitment to the Paris Climate Accord.

Beatriz Has Weakened To A Remnant Low But Flooding Rain Continues in Mexico

By Jonathan Belles
June 2, 2017

Beatriz poses a danger, despite its rather meager intensity.

Three Derechos May Have Struck South Last Weekend, NOAA Says

By Jonathan Belles
June 2, 2017

Three derechos may have plowed through parts of the Mississippi and Tennessee valleys, according to the Storm Prediction Center.

Southwest Monsoon 2017 Forecast: Warmer-Than-Average Conditions Could Lead to More Storms

By Jonathan Belles
June 2, 2017

The Southwest monsoon season begins soon, and here's what forecasters are expecting.

Larsen C Crack Is in Its Final Stages; Will Produce One of World's Largest Icebergs Ever Recorded

By Brian Kahn
June 1, 2017

Sad and disturbing news coming from Antarctica.

In California, 'June Gloom' Is a Real Thing

By Brian Donegan
June 1, 2017

June doesn't feature all sunshine and warmth in one part of the country.

Trump Pulls U.S. Out of Paris Climate Agreement

By Pam Wright
June 1, 2017

President Donald Trump is pulling the United States out of the landmark international accord.

Shelf Clouds: The Science Behind Social Media's Most Popular Cloud

By Jon Erdman
June 1, 2017

Here's what this menacing cloud actually means.

Antarctica Lost 125 Gigatons of Ice Per Year From 2002 to 2016, NASA Says

By Sean Breslin
June 1, 2017

Here's how much ice the continent is losing each year.

2017 Atlantic Hurricane Season: Expect It to Be Busier Than Usual

By Jon Erdman
June 1, 2017

The latest hurricane season forecast released in May calls for above-average activity in the Atlantic.

Hurricanes and Tropical Storms in June: Where Do They Form?

By Chris Dolce
June 1, 2017

Here's a look at the historical formation areas for tropical storms and hurricanes in June.

Tornado Strength Has Larger Effect Than Population on Casualties, Study Says

By Brian Donegan
June 1, 2017

The results of this new study may be the opposite of what you'd think.

Eastern May Rain Fatigue; Any Break Ahead in June?

By Jon Erdman
June 1, 2017

So much for flowers. This May has been almost "all wet."

Late-Season Fronts Can Mean Trouble in the Tropics in June

By Jonathan Belles
June 1, 2017

Early season tropical development often comes from dying cold fronts and other thunderstorm systems.

Featured Blogs

Meteorology of Saturday's Colombian Flood Disaster That Killed 254

By Dr. Jeff Masters
April 3, 2017

At least 254 people were killed in the in the city of Mocoa (population 40,000) in southwest Colombia near the border of Ecuador early Saturday, when torrential rains triggered a debris flow on a nearby mountain that surged into the town as a huge wall of water carrying tons of mud and debris. The disaster is the fourth deadliest weather-related disaster in Colombia’s recorded history.

Iconic American Destination Virtually Isolated for Rest of Year

By Christopher C. Burt
March 24, 2017

Half of the village of Big Sur, on the coast of central California, has lost its only access to the north following the demolition of the flood-damaged Pfeiffer Canyon Bridge along State Route 1 (also Rt. 1 or SR 1) on March 19. Although Rt. 1 to the south of Big Sur has reopened to traffic (after mud and rock slides were cleared) it is a long 70-mile journey along the windy but spectacular highway to Cambria, the next town of any significance where supplies can be had. CalTrans (California Department of Transportation) estimates it will take 6-9 months to rebuild a new bridge over the canyon.

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.