Earth Day 2014 Wunderphoto Selections

By: Dr. Jeff Masters, 11:50 AM GMT on April 22, 2014

Today is Earth Day, a day to celebrate the beauty of the atmosphere, oceans, and biosphere of the planet that sustains us. As is my tradition on Earth Day, I present my favorite wunderphotos uploaded to our web site over the past year. I want to thank everyone who has participated in making this the largest (1.7 million!) and best weather photo gallery on the Internet--your photos are truly an inspiration! Many of my choices were taken from our Worldview Gallery, u...

Atmospheric Phenomena

Updated: 3:42 PM GMT on April 22, 2014

UFOs, Human Frequencies in Radar Data, and Other Emails From Responsible Persons

By: Dr. Jeff Masters, 3:34 PM GMT on April 21, 2014

It's a bit of a slow weather day, so I thought I'd share with you today a few of the more interesting inquiries I've gotten during my 20 years working with Weather Underground. I responded to all of the emails, but not the phone calls. Enjoy!

Jeff Masters

Notes from a phone message taken by my business partner, Jeff Ferguson on May 3, 2002:
It turns out that there is a person in Texas who uses our Nexrad radar imagery to locate people. He ...


More Water For California: New Enormous Water Works Programs Are Expensive

By: Dr. Jeff Masters, 9:18 PM GMT on April 18, 2014

The end of the rainy season is nearly here, and California faces a long, dry summer with a Sierra snowpack that is only 33% of normal. There is no significant precipitation in the forecast for California through April 25, but the state still has another shot at a decent round of heavy precipitation the last few days of April, according the latest long-range forecasts from the GFS model. If this storm does materialize, March and April precipitation would be near aver...


California Drought/Polar Vortex Jet Stream Pattern Linked to Global Warming

By: Dr. Jeff Masters, 6:56 PM GMT on April 16, 2014

From November 2013 - January 2014, a remarkably extreme jet stream pattern set up over North America, bringing the infamous "Polar Vortex" of cold air to the Midwest and Eastern U.S., and a "Ridiculously Resilient Ridge" of high pressure over California, which brought the worst winter drought conditions ever recorded to that state. A new study published this week in Geophysical Research Letters, led by Utah State scientist S.-Y. Simon Wang, found that this jet strea...

Climate Change Extreme Weather Drought

Wunderground Launches Major Site Redesign and New Logo

By: Dr. Jeff Masters, 12:13 PM GMT on April 15, 2014

Back when I helped found the world's first commercial on-line weather service--The Weather Underground--back in 1995, we adopted a simple and colorful rainbow logo that expressed our mission well: a website dedicated to unlocking and sharing vast amounts of weather data with as many people as possible using the latest digital technologies, in a way that is visually appealing and engaging. Nineteen years later, we are transitioning to a completely new logo, as part o...

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Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.