Weather Articles

600 Still Missing in Sierra Leone; Deadly 'River of Mud Came out of Nowhere'

August 16, 2017

More than 300 people are dead and 600 still missing after heavy rains and flash flooding led to landslides in the west African nation of Sierra Leone.

Hurricane, Total Solar Eclipse at the Same Time Would Be a First in Satellite Era

By Jonathan Erdman
August 16, 2017

A strange overlap of events is possible Monday.

Parade of East Atlantic Tropical Waves, Including Invests 91L and 92L, May Become the Next Tropical Storm

By Chris Dolce
August 16, 2017

We're heading into the heart of the hurricane season, and the next systems in line bear watching.

Solar Eclipse Weather Forecast: Will Clouds Block Your View?

By Jon Erdman
August 16, 2017

Less than a week away, the potential weather pattern is coming into view.

Hurricane Gert Only a Wave Generator For U.S. East Coast, Bermuda

August 16, 2017

Gert will keep its sea legs, but will have one indirect impact at the beach.

6 Ways Weather Could Change During the Great American Eclipse

By Jonathan Belles
August 15, 2017

You might notice some changes in the weather during the Great American Eclipse.

For the Second Consecutive Year, Earth Has Recorded Its Warmest July on Record

By Chris Dolce
August 15, 2017

The trend of record or near-record warmth globally continued in July.

Monsoon Flooding Kills At Least 245 in India, Nepal and Bangladesh

By The Associated Press
August 15, 2017

Here's the latest on this dire situation.

Arkansas Flash Flooding: Bridges Covered, Water Entering Homes and Businesses

By Eric Chaney
August 15, 2017

Heavy rains have led to flash flooding in Russellville and Clarksville.

Total Solar Eclipse Weather Forecast: Will Your View Be Blocked?

By Jon Erdman
August 14, 2017

Less than a week away, the potential weather pattern is coming into view.

2017 Hurricane Season Named Storm Pace Rivals Most Active Seasons on Record, But There's a Distinct Difference

By Chris Dolce
August 14, 2017

The pace of named storms in 2017 is rivaling some past historic hurricane season, but there's a catch.

Tropical Storm Gert Not a Threat For U.S. East Coast and Bermuda; High Surf, Rip Current Threat For Parts of East Coast

By Jonathan Belles
August 14, 2017

Tropical Storm Gert is forecast to stay off the U.S. East Coast.

Is Summer Over? Midwest Cities Rack Up More than Two Weeks of Below-Average Temperatures

By Jonathan Belles
August 14, 2017

Why heat has taken a summer vacation for some.

At Least 250 Dead in Sierra Leone Landslide; Heavy Rains Causing Flash Flooding

By Eric Chaney
August 14, 2017

At least 250 people are dead after heavy rains and flash flooding led to landslides in the west African nation of Sierra Leone.

Flash Flooding Prompts Water Rescues in Texas and Oklahoma

By Chris Dolce
August 13, 2017

Heavy rainfall has swamped several locations northeast of Dallas.

Flash Flood Threat Persists in the South on Sunday

By Linda Lam
August 13, 2017

Several rounds of storms will bring heavy rain and the risk of flooding to portions of Plains and South into next week.

First Significant U.S. Snowfall of the Season Piling Up This Weekend

By Chris Dolce
August 13, 2017

Parts of Alaska are getting their first taste of winter this weekend.

Atlantic Invest 99L Likely to Become a Tropical Depression or Storm This Weekend

By Chris Dolce
August 12, 2017

An area of disturbed weather in the Atlantic still bears watching this weekend.

Record Pacific Northwest Heat Wave Finally Ends This Weekend

By Jon Erdman
August 12, 2017

At last, a major pattern shift is ahead.

Jova Weakens to a Tropical Depression; Franklin's Ghost Expected to Weaken Further Through the Weekend

By Jonathan Erdman
August 12, 2017

How a dissipated Franklin developed into a new system in the eastern Pacific.

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.