Weather Articles

April Could End With a Snowstorm in the Rockies, High Plains and Upper Midwest

By Jon Erdman
April 25, 2017

Don't put the snowthrower away yet, even though April is almost over.

Arizona Wildfire Explodes in Size Due to Dry, Windy Weather

By Eric Chaney
April 25, 2017

Firefighters battled tough weather conditions while trying to contain a blaze that has consumed at least 15,000 acres.

At Least 1 Dead as Widespread Flash Flooding Swamps Raleigh, North Carolina

By Jon Erdman
April 25, 2017

Heavy rain prompts deadly flash flooding in the North Carolina capital.

Watch Issued: Multiple Rounds of Severe Thunderstorms, Including Possible Tornadoes, Expected in April's Final Week

By Chris Dolce
April 25, 2017

An active jet stream will increase the risk of severe weather and flooding through this weekend.

Major Warm-Up Expected in Northeast Late Week into This Weekend; First 90-Degree Day Possible in Washington D.C.

By Brian Donegan
April 25, 2017

It's almost time to break out the flip-flops and shorts in parts of the Northeast.

Sunless in Seattle: New Records Smashed For Rainy-Season Precipitation

By Jon Erdman
April 25, 2017

This won't help the city's already wet reputation.

GOES-16 Satellite Imagery Detects Sea Ice Swirling Near Canada

By Jonathan Belles and Chris Dolce
April 25, 2017

Testing continues for GOES-16, but the results so far are spectacular.

Rare Cloud May Have Inspired Edvard Munch's 'The Scream'

By Linda Lam
April 25, 2017

A new hypothesis may explain what's depicted in one famous painting.

California Spider, Insect Explosion Expected as Drought Ends

By Eric Chaney
April 25, 2017

An entomologist expects a “bumper crop” of spiders to follow in the wake of wetter weather. 

Flood Threat Continues in the Carolinas, Virginia as East Coast System Moves North

By Linda Lam
April 24, 2017

A wet start to the week is expected for areas near the East Coast.

Water Rescues Reported, Thousands Without Power as Rain Causes Flooding from South Carolina to Virginia; Charleston Hit Hard

By Eric Chaney
April 24, 2017

Persistent rain on the East Coast has caused flooding from South Carolina to Virginia.

Supercells: What to Know About These Dangerous Thunderstorms

By Chris Dolce
April 24, 2017

Here's what to know about this dangerous type of thunderstorm.

Yes, April Is Actually the Snowiest Month in These Places

By Jon Erdman
April 24, 2017

Believe it or not, heavy snow can be an April thing for some.

St. John's, Newfoundland, Receives Record-Breaking 60 Consecutive Hours of Freezing Rain, Turning It into a Winter Wonderland

By Sean Breslin
April 24, 2017

Newfoundland's streak of consecutive hours with freezing rain was broken – by 23 hours.

Severe Thunderstorms and Flooding Possible in the Southeast into Sunday Evening

By Brian Donegan
April 23, 2017

Stormy weather is likely in the Southeast to end the weekend.

South to See Cooler Air Following Near-Record Warm Start to April

By Jonathan Belles
April 22, 2017

Following a warm start to April, a late-season cool shot is about to target the southern Plains and South.

Thousands Lose Power in Oklahoma as Storms Rattle the Plains

By Sean Breslin
April 21, 2017

Thousands lost power and water rescues were reported in parts of Oklahoma as the storms rolled through.

Tropical Storm Arlene Was Only the Most Recent Oddity in the Atlantic Basin

By Jon Erdman
April 21, 2017

We've seen a number of strange things in the tropical Atlantic Ocean the past five years.

Tropical Storm Arlene Provides Opportunity to Debut New Products at the National Hurricane Center

By Jonathan Belles
April 21, 2017

The early arrival of Tropical Storm Arlene allowed the National Hurricane Center to debut some of its new products for the 2017 Atlantic Hurricane season.

Parts of Europe Gripped by Cold Snap, Heavy Snow

By Sean Breslin
April 21, 2017

Here are some images for those who miss the scenes of winter already.

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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

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Storm Surge terms described and defined in the Storm Surge infographic by Weather Underground.

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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.