What to Expect from El Niño: How Much Snow Back East?

By: Bob Henson, 3:43 PM GMT on July 30, 2015

Some of the impacts from El Niño across the United States are fairly straightforward: hurricane suppression in the Atlantic, for example. Then there’s snowfall in the Northeast, where El Niño is just one of several big factors at work. We touched on the complexities of this topic in Tuesday’s roundup post on typical El Niño impacts during North American winter. (Jeff Masters posted an update earlier today on tropical activity in the Atlantic and Pacific, incl...

El Niño

Little Change to 94L; Hawaii Watching Guillermo; TC 2 Kills 27 in Myanmar/Bangladesh

By: Jeff Masters, 1:10 PM GMT on July 30, 2015

A strong tropical wave that pushed off the coast of Africa on Wednesday (Invest 94L) was located a few hundred miles southwest of the Cape Verde Islands on Thursday morning, and was headed west at 15 mph. 94L does have conditions that favor some slow development over the next few days. Satellite images show that 94L has a decent amount of spin, but only a modest area of heavy thunderstorms that have not increased in organization this morning. Wind shear off the coas...

Hurricane

Invest 94L Off the Coast of Africa May Slowly Develop

By: Jeff Masters, 3:29 PM GMT on July 29, 2015

The first African tropical wave worthy of being classified by NHC as an area of interest (an "Invest") has emerged from the coast of Africa, and lies a few hundred miles southeast of the Cape Verde Islands. Invest 94L has conditions that favor some slow development over the next few days. Satellite images show that 94L has a decent amount of spin and a small but growing area of heavy thunderstorms. Wind shear off the coast of Africa is moderate, 10 - 20 knots, ocean...

Hurricane

What to Expect from El Niño: North America

By: Bob Henson, 3:16 PM GMT on July 28, 2015

We’re now well into the ramp-up phase of what promises to be one of the top three El Niño events of the last 60-plus years. Sea-surface temperatures (SSTs) in the Niño3.4 region--an area straddling the eastern tropical Pacific--are the most widely accepted index for the oceanic evolution of El Niño. NOAA announced in its weekly ENSO update on Monday (see PDF) that Niño3.4 SSTs were running 1.6°C degrees above the seasonal average for the week ending Monday. W...

El Niño

Updated: 6:38 PM GMT on July 28, 2015

Quiet in the Atlantic; Two Disturbances for Hawaii to Watch

By: Jeff Masters, 3:29 PM GMT on July 27, 2015

The tropics have fallen silent the past two days, with no named storms anywhere on the planet. It's not unusual to see a quiet period for tropical cyclones in July, which lies before the climatological peak months of August, September, and October in the Northern Hemisphere (a tropical cyclone is the generic term for all tropical depressions, tropical storms, and hurricanes/typhoons). The tropical cyclone-free period will likely be short lived, though, as Invest 90...

Hurricane

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About

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

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