Danny Becomes First Atlantic Hurricane of 2015; Invest 93C Moves Toward Hawaii

By Dr. Jeff Masters
August 20, 2015

The little storm that could, Danny, surged from weak tropical-storm status on Wednesday night to become the Atlantic’s first hurricane of the year on Thursday morning. At 11:00 am EDT Thursday, the top sustained winds in Hurricane Danny were estimated at 75 mph, or near minimal hurricane strength. Located in the remote central tropical Atlantic, near 12.5°N and 44.8°W, Danny remains far from land areas, roughly 1100 miles east of the Leeward Islands. Meanwhile, Hawaii needs to keep an eye on Invest 93C, which could become a hurricane nearing the islands early next week.

Not a tropical cyclone?

By Stu Ostro
August 15, 2015

Pacific Northwest on Track for Warmest Summer on Record

By Christopher C. Burt
August 1, 2015

Another heat wave has engulfed much of the U.S. Pacific Northwest the past few days with Seattle, Washington now having observed twelve 90°+ temperatures so far this summer, an all-time record (9 such days in 1958 was the previous) and also July has been their warmest month ever observed. For some of the cities in the Northwest this has been the warmest June-July period ever measured and, barring a very cool August, will end up being the warmest climatological summer on record (June-August). Here are some details.

PWS Service Interruption Update

By Shaun Tanner
June 16, 2015

The development team here at Weather Underground has been hard at work producing a new homepage! Please take a look at the sneak peek and tell us what you think!

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 Angela Fritz
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.