Weather Articles

Hurricane Maria Beginning a Potentially Catastrophic Category 5 Siege on Puerto Rico After Hammering the Virgin Islands

September 20, 2017

Maria could be the strongest hurricane strike on the Virgin Islands and Puerto Rico since 1928.

Puerto Rico Residents Urged to Find Shelters as Deadly Maria Lashes St. Croix

By Eric Chaney
September 19, 2017

Authorities and residents in Puerto Rico and the US Virgin Islands are preparing for the worst.

More Than 140 Dead After 7.1 Magnitude Earthquake Rocks Mexico

September 19, 2017

The deadly quake reduced buildings to rubble and brought traffic to a standstill.

Tropical Storm Jose Bringing Coastal Flooding, Rain, Wind to the Eastern Seaboard; Tropical Storm Warning for Southeast Massachusetts

September 19, 2017

In some ways, Jose resembles a nor'easter without the snow.

How Tropical Storm Jose Could Play a Role in Steering Hurricane Maria

By Chris Dolce
September 19, 2017

Here's why Maria will track more north and east than Irma did.

Hollywood, Florida, Nursing Home Incident Claims 9th Victim

September 19, 2017

The tragedy began to unfold in the wake of Hurricane Irma.

More Snow Expected in Parts of Northern Rockies This Week

By Brian Donegan
September 19, 2017

The northern Rockies are forecast to receive more accumulating snow this week.

'We're Going to Have to Rebuild': Puerto Rico, Virgin Islands Brace for Deadly Hurricane Maria

September 19, 2017

Here's the latest on this weather event.

At Least 94 Dead After Magnitude 7.1 Quake Strikes Mexico

September 19, 2017

The deadly quake damaged buildings and brought traffic to a standstill.

Magnitude 7.1 Earthquake Strikes Mexico: 'I Can’t Believe I’m Alive'

By Eric Chaney
September 19, 2017

A magnitude 7.1 earthquake struck Mexico Tuesday afternoon, southeast of Mexico City.

Jose Bringing Coastal Flooding, Beach Erosion From Outer Banks to Northeast

By Pam Wright
September 19, 2017

Jose is impacting the Outer Banks to the Northeast with coastal flooding and erosion.

1 Dead, 2 Missing As Hurricane Maria Lashes Dominica With 'Mind-Boggling' Devastation, Sets Sights On Puerto Rico, Virgin Islands

September 19, 2017

The massive storm slammed into Dominica Monday and is now targeting Puerto Rico, Virgin Islands

Monsters of the Atlantic: The Basin's Category 5 Hurricanes

By Tom Moore
September 19, 2017

An in-depth look the Atlantic's Category 5 hurricanes and the destruction they have caused.

Irma Death Toll in Florida Stands at 34, But It Will Rise, Officials Say

By Pam Wright
September 19, 2017

Florida officials have to determine the total number of deaths attributed to Irma

Hurricane Maria Hits Caribbean; Dominica Prime Minister Roosevelt Skerrit Says Home Damaged, Rescue Successful

By Ada Carr
September 19, 2017

The massive storm slammed into Dominica Monday and is now targeting Puerto Rico, Virgin Islands

2017 Atlantic Hurricane Season Rivaling Other Historically Active Years

By Jonathan Erdman
September 19, 2017

It's been a devastating season so far, and it's only climbing an all-time list.

Hurricane Maria's Incredible Strength Captured By Satellite Images as the Second Atlantic Category 5 of 2017

By Chris Dolce
September 19, 2017

Maria's extreme intensity is easy to see from space.

Rain, Snow Mixed Blessing for Montana Wildfire Crews

By Eric Chaney
September 19, 2017

Snow, ice and rain help put out fires, but also make conditions tough for firefighters.

Hurricanes Maria and Irma a Rare Atlantic Category 5 Pair in the Same Year

By Chris Dolce
September 19, 2017

How rare is it to have two Category 5 hurricanes in the same year?

Paris Agreement Targets Still Possible — But Not Easy, New Study Says

By James Crugnale
September 19, 2017

According to a new study published in Nature Geoscience, a team of researchers calculated that reaching the goals of the Paris Agreement on Climate Change are not outside the realm of possibility if "strong action is taken."

Featured Blogs

Meteorology of Saturday's Colombian Flood Disaster That Killed 254

By Dr. Jeff Masters
Aprill 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
Märts 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
Oktoober 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
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

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.