Epic Storm Pounds Southern California With Heavy Rain, High Wind and Huge Waves

By: Jeff Masters, 5:20 PM GMT on February 17, 2017

The epic assault of the winter of 2016 - 2017 on California continued on Friday morning as torrential rains, damaging winds and huge waves from a massive and powerful Pacific storm system pounded the Golden State. Carrying with it an “atmospheric river” of moisture originating in the subtropics near Hawaii, Friday’s storm was most dangerous because of its heavy rains. According to the National Weather Service in Oxnard, California, Friday and Saturday could b...

Updated: 7:16 PM GMT on February 18, 2017

January 2017: Earth's 3rd Warmest January on Record; Lake Oroville Water Levels Drop

By: Jeff Masters and Bob Henson, 5:38 PM GMT on February 16, 2017

January 2017 was the planet's third warmest January since record keeping began in 1880, said NOAA's National Centers for Environmental Information (NCEI) on Thursday. Along with NOAA, NASA also rated January 2017 as the third warmest January on record. The only warmer Januarys were 2016 (highest) and 2007 (second highest). Global ocean temperatures during January 2017 were the second warmest on record, and global land temperatures were the third warmest on record. G...

Climate Summaries Flood

Updated: 6:32 PM GMT on February 18, 2017

This is February? 80°F in Denver, 99° in Oklahoma, 66° in Iceland, 116° in Australia

By: Bob Henson, 4:17 PM GMT on February 14, 2017

The strong, recurrent Pacific jet stream that’s been delivering massive amounts of rain to California has also been pushing mild Pacific air downslope off the Rockies and eastward, keeping the southern two-thirds of the U.S. absurdly warm for early February. From New Mexico to Virginia southward to the Gulf Coast, trees and shrubs are budding out en masse up to three weeks ahead of schedule (see Figure 1). In Texas, Dallas-Fort Worth recorded its last freezing tem...

Tornado Heat

Updated: 7:02 AM GMT on February 16, 2017

More than 180,000 Under Evacuation Orders as Oroville Dam Spillways Compromised

By: Bob Henson, 3:46 PM GMT on February 13, 2017

Tens of thousands of Californians fled their homes on short notice Sunday evening about 60 miles north of Sacramento when the emergency (auxiliary) spillway at Oroville Dam--the nation’s tallest dam--showed signs of failure, prompting mandatory evacuations along the Feather River downstream, including the entire city of Oroville (population 16,000.) It was a dramatic turn of events in a situation that has gotten progressively worse over the last few days. Record a...

Updated: 6:07 PM GMT on February 13, 2017

One Snowy, Windy Nor’easter Gone; More on the Way?

By: Bob Henson, 5:04 PM GMT on February 10, 2017

A fast-moving, hard-hitting snowstorm walloped large swaths of the Northeast U.S. and New England on Thursday, a mere day after record highs above 60°F had enveloped much of the region. Widespread wind gusts of 50 to 70 mph--qualifying the storm as a blizzard for several hours in many areas, including Boston--added to the impact of this classic midwinter event, which dropped widespread snow totals of a foot or more from Long Island, New York, to southwest Maine. On...

Winter Weather Blizzard

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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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