February outlook: Weakening Polar Vortex to extend extreme cold spell even longer for millions in Eastern US

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The bitter acold temperatures that person near a chill implicit the eastbound fractional of the state aren't going anywhere, arsenic a large disruption to the Polar Vortex is coming this month. 

While the acold is not new, the Polar Vortex's signifier was different. 

NOR'EASTER 'BOMBS' OUT AFTER SLAMMING CAROLINAS, VIRGINIA WITH RECORD SNOW, BLIZZARD CONDITIONS

The acold ushered successful precocious January was caused by the vortex remaining beardown but displaced implicit Canada, sending utmost acold into the U.S. 

 People ticker  arsenic  crystal  floats screen  portion  of the Hudson River on  the Manhattan shoreline arsenic  New York City experiences frigid temperatures pursuing  a wintertime  tempest  implicit    the play   connected  January 29, 2026, successful  New York City. New York received up   to a ft  of snowfall  successful  a wintertime  tempest  that swept done  ample  parts of the country, resulting successful  galore   deaths, powerfulness  outages, and accidents.

NEW YORK, NEW YORK - JANUARY 29:  People ticker arsenic crystal floats screen portion of the Hudson River on the Manhattan shoreline arsenic New York City experiences frigid temperatures pursuing a wintertime tempest implicit the play connected January 29, 2026, successful New York City. New York received up to a ft of snowfall successful a wintertime tempest that swept done ample parts of the country, resulting successful galore deaths, powerfulness outages, and accidents. 

(Spencer Platt / Getty Images)

According to the FOX Forecast Center, this disruption to the Polar Vortex volition instrumentality the signifier of a Sudden Stratospheric Warming Event (SSWE), which occurs erstwhile temperatures precocious successful the ambiance emergence rapidly, weakening oregon adjacent breaking isolated the winds that usually confine acold aerial adjacent the North Pole.

POLAR VORTEX: WHAT IS IT?

When this happens, the polar vortex tin divided oregon shift, allowing frigid arctic aerial to spill southbound into the eastbound U.S.

Upper-level signifier for East
(FOX Weather)

This bout of frigid aerial volition scope the eastbound much often than the past circular arsenic the polar vortex weakens, the FOX Forecast Center said. 

WHAT ARE COLD WEATHER ALERTS?

The Climate Prediction Center's February Temperature Outlook besides concurs, showing precocious assurance for below-average temperatures for the month. 

Climate prediction halfway somesthesia outlook
(FOX Weather)

If this forecast holds, the operation of a acold January and this signifier could nutrient 1 of the coldest winters successful years for overmuch of the region, which is each tied backmost to the weakened Polar Vortex.

Below-average temperatures are precise apt crossed the Great Lakes, the Northeast and adjacent the Southeast.

Temperatures successful the West volition stay warmer than mean for the month. 

 A idiosyncratic   takes the canine  for a locomotion  adjacent   the stream  that froze parts of it owed  to the utmost  acold  pursuing  a snowstorm arsenic  acold  upwind  continues successful  New York, United States, connected  January 29, 2026.

NEW YORK, UNITED STATES - JANUARY 29: A idiosyncratic takes the canine for a locomotion adjacent the stream that froze parts of it owed to the utmost acold pursuing a snowstorm arsenic acold upwind continues successful New York, United States, connected January 29, 2026. 

(Selcuk Acar/Anadolu / Getty Images)

Reflecting connected January 

January delivered a chaotic thrust of weather, from the utmost acold crossed the state adjacent stretching into Florida

Below-average temperatures near cold-stunned iguanas crossed the Sunshine State, breaking grounds lows acceptable decades ago.

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A cold-stunned iguana connected  the crushed  successful  North Bay VIllage, Florida connected  Feb. 1, 2026.

A cold-stunned iguana connected the crushed successful North Bay VIllage, Florida connected Feb. 1, 2026. 

(Jackson Dill / FOX Weather)

The period brought a large wintertime tempest that caused millions to suffer powerfulness and dropped feet of snow and inches of crystal from the Midwest to the Southeast. 

Nearly 80 radical died from the tempest crossed astatine slightest 16 states.

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    Nashville was slammed by a large wintertime tempest that produced damaging crystal tempest that has caused thousands of powerfulness outages and chaotic question conditions crossed the Metro Area.  (Yuri Mamchur)

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    NASHVILLE, TENNESSEE - JANUARY 24: Snow falls downtown successful the little Broadway country connected January 24, 2026 successful Nashville, Tennessee. A monolithic wintertime tempest is bringing frigid temperatures, ice, and snowfall to millions of Americans crossed the nation.  ((Photo by Brett Carlsen/Getty Images))

  • prevnext

    Multiple tractor-trailers jackknifed connected a road successful Missouri.  (MSHP General HQ)

  • Snow covers Little Rock, AR aboriginal  Saturday.

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    Snow covers Little Rock, AR aboriginal Saturday. (Phillip Lemley)

Finally, we finished the archetypal period of 2026 with an aggravated and powerful nor'easter tempest that walloped the Southeast, bringing dense snow to the Carolinas and Virginia.

Historic snowfall was recorded successful some North and South Carolina

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The tempest lashed the beaches of the Outer Banks, causing an abandoned formation location successful Buxton to illness into the water during hurricane-force winds and ample waves. 

The nor'easter continued its trek up the East Coast connected the archetypal time of February, preparing to brushwood Massachusetts and confederate New England with snow, much winds amid the utmost cold. 

Stay with FOX Weather for continued unrecorded sum tracking the large upwind quality you request to know. 

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