Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.
By: Bob Henson, 06:25 PM GMT on Veljača 27, 2015
Californians are watching anxiously to see if a “Miracle March” or “Awesome April” salvages the worst snowpack season on record thus far in parts of the Sierra Nevada. Snow that piles up across the mountain range from autumn through spring furnishes more than 60% of the state’s water for consumer and agricultural use. Winter precipitation across California hasn’t been too far from average, but even more than usual, most of it has fallen in a relatively s...
Updated: 06:07 AM GMT on Veljača 28, 2015
By: Bob Henson, 06:48 PM GMT on Veljača 26, 2015
A quick-moving snowstorm zipped from northeast Texas to southern Virginia in little more than 24 hours, leaving some parts of the Deep South with more snow than they’ve seen in decades. Rather than carving a deep trough in the eastern U.S., the upper-level energy that generated the snow tracked along the base of a broad pre-existing trough. This channeling of energy helped lead to a storm that had a vast extent from southwest to northeast but a narrow north-south ...
Updated: 07:07 PM GMT on Veljača 26, 2015
By: Bob Henson, 05:04 PM GMT on Veljača 24, 2015
Residents of New England may understandably look back at 2015 as the year of their never-ending winter. For the planet as a whole, though, this year could stand out most for putting to rest the “hiatus”— the 15-year slowdown in atmospheric warming that gained intense scrutiny by pundits, scientists, and the public. While interesting in its own right, the hiatus garnered far more attention than it deserved as a purported sign that future global warming would be...
Updated: 05:36 PM GMT on Veljača 24, 2015
By: Bob Henson, 04:53 PM GMT on Veljača 23, 2015
Unusually cold air will prevail across most of the Eastern U.S. for yet another week, making some inroads into the central states. Snow and ice continue to plague parts of the South and Atlantic: significant sleet and freezing rain are possible today from northeast Texas into Mississippi. Another round of wintry precipitation is likely midweek across parts of the mid-South, with the focus beginning to shift westward in a long-awaited pattern change by next weekend.<...
Updated: 09:34 PM GMT on Veljača 23, 2015
By: Bob Henson, 05:50 PM GMT on Veljača 20, 2015
This winter’s persistent U.S. gap between western warmth and eastern cold grew into a chasm this week. While unseasonable, unsettling mildness continues to bathe much of the West, one of the strongest February cold outbreaks in U.S. weather history--perhaps the worst and most widespread for so late in the winter--has taken hold from the Mississippi Valley eastward. Freezing temperatures pushed into parts of central Florida on Friday morning, with readings diving b...
Updated: 07:39 PM GMT on Veljača 20, 2015