Huge Temperature Swings to Sock the Northeast Ahead of Early-Week Storm

By: Bob Henson, 10:01 PM GMT on February 12, 2016

From frigid, near-record lows this weekend to mild, soggy highs on Tuesday, New York and New England are about to experience one of the most dramatic chill-down-to-warm-up sequences in memory. The brief but sharp cold will extend across the eastern U.S., but the most dramatic temperature swings are expected from Washington, D.C., northward. Some locations from Philadelphia to Portland will rocket from temperatures near or below 0°F on Saturday night--plus much lowe...

Extreme Weather Winter Weather

Updated: 4:13 AM GMT on February 13, 2016

A Mostly Mild and Dry January for U.S., Punctuated by Big Storms

By: Bob Henson, 4:56 PM GMT on February 11, 2016

The strong El Niño event dubbed “Godzilla” by one oceanographer behaved more like a hero than a monster in January, at least when it came to conditions across the United States. Mild and dry weather prevailed over much of the nation, and where it was wet or snowy, the moisture was generally well predicted and widely appreciated, apart from a titanic Northeast snowstorm (see below).

Last month was the 34th warmest and 36th driest January for the cont...

Climate Summaries

Updated: 3:50 PM GMT on February 12, 2016

Northeast Braces for a Frigid, Windy Weekend

By: Bob Henson, 6:04 PM GMT on February 10, 2016

A quick but intense shot of blustery cold will sweep across the northeast U.S. this weekend, reminiscent of the “polar vortex” outbreaks from the last two winters. Compared to the multi-day blasts of cold that were common in early 2014 and 2015, this will be more of a glancing blow, but stout breezes will push wind chills far below zero in many areas.

Figure 1. Surface air temperatures in °F predicted by the 12Z Wednesday run of the GFS model f...

Extreme Weather Winter Weather

Updated: 4:18 AM GMT on February 11, 2016

Hurricane Patricia's 215 mph Winds: A Warning Shot Across Our Bow

By: Jeff Masters, 5:12 PM GMT on February 08, 2016

The Eastern Pacific's Hurricane Patricia--rated the strongest hurricane ever recorded in the Western Hemisphere with 200 mph sustained winds on October 23, 2015--was actually much stronger, with 215 mph winds, said the National Hurricane Center (NHC) last week, after completing a detailed post-season review. An Air Force hurricane hunter aircraft measured a surface wind of 209 mph in Patricia at 0600 UTC October 23 using a Stepped-Frequency Microwave Radiometer (SFM...

Hurricane Climate Change

Updated: 10:13 PM GMT on February 08, 2016

Five Weathercasters Who Made History

By: Bob Henson, 5:05 PM GMT on February 05, 2016

Happy National Weatherperson’s Day! This American holiday takes place each year on February 5, the birthdate of John Jeffries (1745-1819). Jeffries was a military surgeon during the American Revolution, and later the family physician to future President John Adams, but he gained his greatest meteorological fame by taking observations from a hot-air balloon above London.

To salute the occasion, I thought I’d spotlight a tiny sample of the hundreds of ...

TV Weather Broadcast Meteorology

Updated: 7:16 PM GMT on February 05, 2016

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Dr. Jeff Masters' WunderBlog


Dr. Masters (r) co-founded wunderground in 1995. He flew with the NOAA Hurricane Hunters 1986-1990. Co-blogging with him: Bob Henson, @bhensonweather

JeffMasters's Recent Photos

Afternoon clouds over Southwest Puerto Rico
Storm clouds gathering over Half Dome
Sierra snow
snowman at Yosemite Falls