Weather Articles

A Change Looms For Storm-Weary Midwest as Severe Weather Threat Shifts East

By Chris Dolce
July 26, 2017

Less-humid air will not only move into the Midwest, but also parts of the South and East later this week.

Nesat to Become a Typhoon in Western Pacific, Bring Flooding Rain and Mudslides to Taiwan and China

By Brian Donegan
July 26, 2017

Nesat is expected to bring heavy rain, flooding and mudslides to parts of Taiwan and China.

6 Odd Weather Events Happening Now

By Chris Dolce
July 26, 2017

July is ending with interesting weather conditions.

Eastern Pacific's Hilary, Irwin to Undergo Weird Fujiwhara Effect Generating High Surf in Southern California

By Jon Erdman
July 26, 2017

This is the second time in a week this will happen in the Pacific Ocean.

Lightning Strike Peels Tree Like a Banana in Pelham, Alabama

By Sean Breslin
July 26, 2017

You've probably never seen anything like this.

Major Flooding Reported in Vestavia Hills, Alabama, South of Birmingham

By Sean Breslin
July 26, 2017

Several water rescues were reported as flash flooding quickly swamped roads.

The Weirdest Hurricane and Tropical Storm Tracks

By Jon Erdman, Sean Breslin, Chris Dolce
July 26, 2017

Often times, they don't exactly move in straight lines. Here's why.

48 More Deaths Reported in India Monsoon Flooding

By Associated Press
July 26, 2017

Hundreds of people were rescued from the flooding in western India.

The Hurricane Names With the Most Frequent U.S. Landfalls

By Brian Donegan
July 25, 2017

These two storm names have impacted the United States more than any others.

Water is the Deadliest Factor in U.S. Hurricanes and Tropical Storms

By Jon Erdman
July 25, 2017

An NHC study details what impacts, types of tropical cyclones, and locations are the deadliest.

Here's Where Every Hurricane That Made Landfall in the U.S. Since 1966 Began Its Journey

By Chris Dolce
July 25, 2017

Here's where hurricanes that have made landfall in the U.S. since 1966 got their start.

Extratropical Low Swirls off the Portugal Coast in a Clash of Air Masses

By Jonathan Belles
July 25, 2017

NASA satellites captured a slow-moving cyclone near the coast of Portugal.

Sweltering Tractor-Trailers Crammed With Migrants All Too Normal in Texas, Officials Say

By Pam Wright
July 25, 2017

Migrants are paying thousands to be smuggled into the United States in trucks that soar to extreme temperatures and have terrible ventilation.

Damage Reported After Tornado Strikes Queen Anne's County, Maryland; 1 Dead, Several Missing after Storms Hit South, Mid-Atlantic

By Sean Breslin
July 24, 2017

Severe storms have caused problems in a number of states in the South and mid-Atlantic.

California's Detwiler Fire Destroys More Than 60 Homes; Residents Allowed to Return Home

By Sean Breslin and Pam Wright
July 24, 2017

Here's what we know about a large wildfire burning miles from Yosemite National Park.

Madden-Julian Oscillation: A Factor in Hurricane Season Forecasting You May Not Have Heard of Before

By Brian Donegan
July 24, 2017

The Madden-Julian Oscillation may not be well known, but it's an important factor during the hurricane season.

Typhoon Noru, the Western Pacific's First of 2017, Begins Weird Fujiwhara Effect With Tropical Storm Kulap

By Jon Erdman
July 24, 2017

The world's most active tropical cyclone zone is showcasing a weird interaction this week.

'Cloud Wall' Spotted Along Oregon's Coast

By Chris Dolce
July 24, 2017

This breathtaking sight showed up along Oregon's coast in early July.

Snooty, the World's Oldest Manatee in Captivity, Has Died Following 'Heartbreaking Accident'

By Pam Wright
July 23, 2017

The oldest manatee in captivity died Sunday, just two days after he turned 69.

Eight Tropical Cyclones At Once in the North Pacific Ocean For First Time Since 1974

By Jon Erdman
July 23, 2017

Why are so many tropical cyclones occurring at once in the Pacific Ocean?

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.