Weather Articles

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

Category 5 Hurricane Maria Targeting the Virgin Islands and Puerto Rico With a Potentially Catastrophic Hit After Slamming Dominica, Guadeloupe

September 19, 2017

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

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 Jose to Bring Coastal Flooding, Rain, Wind to the Eastern Seaboard; Tropical Storm Warning Issued in Southeast New England

September 18, 2017

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

How Hurricane Jose Could Play a Role in Steering Hurricane Maria

By Chris Dolce
September 18, 2017

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

Hurricane Maria Rapidly Intensifies to Category 4 Near Leeward Islands; Potentially Devastating Strike on Puerto Rico and Virgin Islands Ahead

September 18, 2017

Maria is the latest dangerous hurricane threat in the fatigued northeast Caribbean.

More Snow Expected in Parts of Northern Rockies This Week

By Brian Donegan
September 18, 2017

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

Hurricane Maria Takes Aim at Caribbean Islands Battered by Irma; Emergency Declared in Puerto Rico

By Ada Carr
September 18, 2017

Caribbean islands that were devastated by Irma are now being threatened by Hurricane Maria.

Hurricane Maria Rapidly Intensifies Near the Leeward Islands; Potentially Devastating Strike on Puerto Rico and the Virgin Islands Ahead

September 18, 2017

Maria is the latest dangerous hurricane threat in the fatigued northeast Caribbean.

Tropical Storm Talim Batters Japan; 2 Killed, 3 Missing

By Eric Chaney
September 18, 2017

Here's the latest on the storm's assault on Japan.

Florida River 'Highest It’s Ever Been in ... 30 Years' in Irma's Wake: Thousands of Residents Urged to Evacuate

By Pam Wright
September 18, 2017

Here's what's happening in the aftermath of Irma.

Seashells Carpet Florida Panhandle Beaches after Irma

By Eric Chaney
September 18, 2017

The Florida Panhandle missed the worst of Hurricane Irma, but the rough seas kicked up by the storm brought a bonanza to area beaches. 

4 Things You Should Know About Hurricane Jose

By Jonathan Belles
September 17, 2017

Here are a few things you should know about Jose.

Tropical Depression Lee Remains No Threat to Land in the Eastern Atlantic

By Jonathan Belles
September 17, 2017

Lee is not a concern for any land areas in the Atlantic.

Hurricane Maria Forecast to Pose a Potentially Serious Threat to Lesser Antilles, Puerto Rico and Virgin Islands

By Linda Lam
September 17, 2017

Hurricane Maria will threaten portions of the Lesser Antilles early this week.

Hurricane Jose Expected to Bring High Surf to the Eastern Seaboard in the Upcoming Week; Tropical Storm Conditions Possible Along U.S. East Coast

September 17, 2017

Jose will make a close pass to the U.S. East Coast this week.

Tropical Storm Norma Could Bring Gusty Winds and Heavy Rain to Baja California

By Linda Lam
September 17, 2017

Norma could bring gusty winds and heavy rain to southern Baja California.

Tropical Storm Talim Expected to Bring Strong Winds, Flooding Rain to Japan

September 17, 2017

Japan will be impacted by Talim this weekend into early next week.

Tropical Depression Fifteen Has Formed And May Threaten Lesser Antilles Early Next Week

By Linda Lam
September 16, 2017

Tropical Depression Fifteen may threaten portions of the Lesser Antilles early next week.

Pattern Change Is Bringing First Snow of the Season to Parts of Rockies This Weekend

By Linda Lam
September 16, 2017

The first snow of the season is falling in some locations in the Rockies.

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

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.