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Featured Blogs

TD 7 Forms in the Eastern Atlantic; Likely to Become Tropical Storm Grace

By Dr. Jeff Masters
September 5, 2015

Tropical Depression Seven spun into life on Saturday morning in the waters a few hundred miles south of the Cape Verde islands in the Eastern Atlantic, and appears poised to become Tropical Storm Grace by Sunday. TD 7 is under conditions which favor development: light wind shear of 5 - 10 knots, warm ocean waters of 28.3°C (83°F), and a moist atmosphere.

UPDATE: Crazy Summer in Hawaii: Record Rainfall, Record Heat, and Snow!

By Christopher C. Burt
August 26, 2015

Although much media attention weather-wise (at least recently) for Hawaii has been about tropical storms an even more interesting story has been the record wet August in Honolulu and Lihue and the hottest summer and hottest single month (August) on record for many Hawaiian cities. Despite a record warm July, accumulating snow managed to dust the summit of Mauna Kea on the Big Island. Here are some details about the above events.

Not a tropical cyclone?

By Stu Ostro
August 15, 2015

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.