Sea Ice Extent Is Near Record Lows--South as Well as North

By: Bob Henson, 4:03 PM GMT on October 26, 2016

It’s been a banner year for global sea ice, and not in a good way. After a record-smashing mild winter, the Arctic’s summer sea-ice melt culminated in a tie with 2007 for the second-lowest extent since satellite measurements began in 1979. The drama intensified this month, with Arctic sea ice extent now at a clear record low for late October as calculated by the National Snow and Ice Data Center (see Figure 1 below). This behavior isn’t really such a shock, gi...

Arctic Antarctic Sea Ice

Updated: 4:07 PM GMT on October 26, 2016

Small Yet Mighty, Hurricane Seymour Quickly Strengthens

By: Bob Henson, 4:17 PM GMT on October 25, 2016

On Sunday night, the National Hurricane Center (NHC) correctly pegged a small tropical cyclone off the coast of Mexico as being a candidate for rapid intensification, and rapidly intensify it has. Just a minimal tropical storm as of 11 am EDT Sunday, and a minimal hurricane at 11 am Monday, Hurricane Seymour was a strong Category 3 storm as of 11 am EDT Tuesday, with top sustained winds now at 125 mph. Located about 600 miles southwest of Cabo San Lucas, Mexico, Sey...


Updated: 4:30 PM GMT on October 25, 2016

Hurricane Seymour Gains Steam in East Pacific

By: Bob Henson, 3:48 PM GMT on October 24, 2016

More than three weeks of quietude in the Eastern Pacific has come to an end with the development of Hurricane Seymour, which could become the region’s sixth major hurricane of the year. Seymour gained hurricane status about 450 miles southwest of Manzanillo, Mexico, at 11 am EDT Monday, with top sustained winds at 75 mph. As noted by Dr. Phil Klotzbach (Colorado State University), Seymour is the Pacific’s first named storm east of the International Date Line sin...


Updated: 8:26 PM GMT on October 24, 2016

At Least 13 Killed by Typhoon Haima; Atlantic Quiets Down

By: Bob Henson and Jeff Masters, 4:59 PM GMT on October 21, 2016

Potential tropical cyclones are having a tough go of it during these waning days of the 2016 Atlantic hurricane season. Forecasters have been watching Invest 99L for most of this week east of the Bahamas. 99L’s showers and thunderstorms (convection) have never consolidated around a single closed center of low pressure. On Friday morning, 99L consisted of a small pocket of convection near its center and weak showers and storms ringing 99L’s very broad area of low...


Updated: 6:04 PM GMT on October 21, 2016

Drought is the Watchword as Winter 2016-17 Approaches

By: Bob Henson, 5:20 PM GMT on October 20, 2016

After a year with a record number of billion-dollar flood disasters, the United States is now heading into a period where drought may be the leading concern, according to forecasters behind NOAA’s initial winter outlook for 2016-17 that was released Thursday. “The winter forecast doesn’t bode well for [many] areas around the nation experiencing drought,” said Mike Halpert, deputy director of NOAA’s Climate Prediction Center, in a press conference Thursday....

Drought long range winter outlook

Updated: 6:08 PM GMT on October 21, 2016

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Cat 6 lead authors: WU cofounder Dr. Jeff Masters (right), who flew w/NOAA Hurricane Hunters 1986-1990, & WU meteorologist Bob Henson, @bhensonweather

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