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CNN-Weather/Environment

A supercell has a hook echo (located near the Blanchard and Dibble labels) in this radar image from Oklahoma on April 19

Supercell thunderstorms, explained

By CNN Meteorologist Mary Gilbert (CNN) — Supercell thunderstorms are dangerous severe storms that unleash destructive hail, roaring winds and powerful tornadoes. They are responsible for nearly all of the United States’ most violent tornadoes and the largest hailstones. Here’s what makes them so potent. Thunderstorms 101 Thunderstorms need moisture, energy — which meteorologists call

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A woman walks past through the snow in Central Park on February 23

Power outages, travel troubles and bitter cold plague Northeast in wake of historic bomb cyclone blizzard

CNN By Danya Gainor, Chris Boyette, CNN (CNN) — Thousands in the Northeast remained without power amid freezing temperatures Tuesday as people from that region and the mid-Atlantic dug out from extreme snowfall — including more than 2 feet in several states — from the previous two days and faced continuing travel disruptions including hundreds

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A woman walks past through the snow in Central Park on February 23

Power outages, travel troubles and bitter cold plague Northeast in wake of historic bomb cyclone blizzard

By Danya Gainor, Chris Boyette, CNN (CNN) — Thousands in the Northeast remained without power amid freezing temperatures Tuesday as people from that region and the mid-Atlantic dug out from extreme snowfall — including more than 2 feet in several states — from the previous two days and faced continuing travel disruptions including hundreds of

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New York City Mayor Zohran Mamdani speaks at a news conference as the city braces for a blizzard on Sunday in New York City.

Zohran Mamdani bans most travel across NYC due to blizzard — and gives in on a snow day for students

By Katherine Koretski (CNN) — New York City Mayor Zohran Mamdani banned most travel across the nation’s largest city from 9 p.m. Sunday through noon Monday, an extraordinary measure reflecting the test a historic blizzard hitting the region poses. Mamdani also canceled classes for the city’s public schools on Monday with no remote learning. The

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A crew member looks at a laptop inside a NOAA WP-3D Orion Hurricane Hunter research plane at the National Oceanic and Atmospheric Administration's (NOAA)  in Lakeland

Trump admin is pulling supercomputers out of key weather and climate research center

By Andrew Freedman, CNN (CNN) — A leading American research lab is slated to lose its critical supercomputing facility, according to a letter released Thursday by the National Science Foundation. The move is part of the Trump administration’s effort to disassemble the National Center for Atmospheric Research in Boulder, one of the world’s top weather

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Data runs from December 1

It’s been a brutal winter, but now it’s prime time for blockbuster Northeast storms

By Meteorologist Mary Gilbert (CNN) — It’s already been a brutally cold and snowy winter for the northeastern US, but what’s typically the region’s snowiest month is just getting started. Impactful Northeast snowstorms, many of which are powerful nor’easters, occur most often in February, according to data from the National Oceanic and Atmospheric Administration. That’s

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