Wind Advisory
from SAT 12:00 PM MST until SAT 10:00 PM MST, Western Pima County including Ajo/Organ Pipe Cactus National Monument, Tohono O'odham Nation including Sells, Upper Santa Cruz River and Altar Valleys including Nogales, Tucson Metro Area including Tucson/Green Valley/Marana/Vail, South Central Pinal County including Eloy/Picacho Peak State Park, Southeast Pinal County including Kearny/Mammoth/Oracle, Upper San Pedro River Valley including Sierra Vista/Benson, Eastern Cochise County below 5000 ft including Douglas/Wilcox, Upper Gila River and Aravaipa Valleys including Clifton/Safford, White Mountains of Graham and Greenlee Counties including Hannagan Meadow, Galiuro and Pinaleno Mountains including Mount Graham, Chiricahua Mountains including Chiricahua National Monument, Dragoon/Mule/Huachuca and Santa Rita Mountains including Bisbee/Canelo Hills/Madera Canyon, Santa Catalina and Rincon Mountains including Mount Lemmon/Summerhaven, Baboquivari Mountains including Kitt Peak, Kofa, Central La Paz, Aguila Valley, Southeast Yuma County, Gila River Valley, Northwest Valley, Tonopah Desert, Gila Bend, Buckeye/Avondale, Cave Creek/New River, Deer Valley, Central Phoenix, North Phoenix/Glendale, New River Mesa, Scottsdale/Paradise Valley, Rio Verde/Salt River, East Valley, Fountain Hills/East Mesa, South Mountain/Ahwatukee, Southeast Valley/Queen Creek, Superior, Northwest Pinal County, West Pinal County, Apache Junction/Gold Canyon, Tonto Basin, Mazatzal Mountains, Pinal/Superstition Mountains, Sonoran Desert Natl Monument, San Carlos, Dripping Springs, Globe/Miami, Southeast Gila County

Unfathomable cold from polar vortex: New Hampshire sets coldest US wind chill record at -108 degrees

A national wind chill record was broken Saturday morning as feel-like temperatures bottomed out well below zero at what is considered the highest peak in Northeast United States.

Mount Washington recorded a national wind chill record of 108 degrees below 0 on Saturday, while the actual temperatures were negative 47 degrees with a wind speed of 89 mph.

In nextdoor Frenchville, Maine, wind chill values also reached a dangerous negative 61 degrees.

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A national wind chill record was set Saturday morning. (FOX Weather)

"We are nearing wind chills values that most have not seen in their lifetime," the National Weather Service said in a recent forecast discussion for the lower elevations of northern New England.

The NWS in Portland/Gray, Maine, said an unusual phenomenon for its area of responsibility occurred Friday night as the tropopause – the boundary between the troposphere, where our weather occurs, and the stratosphere, the layer of the atmosphere above the troposphere – dipped below the peak of Mount Washington. 

"We recorded the lowest 850mb temperature observed at GYX tonight of -35.5 °C," the agency tweeted. "While we can't definitively say whether or not Mt. Washington was in the stratosphere, the tropopause started just below the summit."

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According to Francis Tarasiewicz, meteorologist at the Mt. Washington Observatory, he and his team at Mt. Washington will literally be able to sniff out the different layer of atmosphere.

"We'll be able to actually detect the smell of ozone, since that's where the highest concentrations of ozone are in the atmosphere, the lower stratosphere in particular," he said. "So, we'll look out for a sort of a bleach-y type of smell."

POLAR VORTEX PROMPTS WIND CHILL WARNINGS ACROSS NORTHEAST AS COLDEST AIR IN OVER 5 YEARS ARRIVES

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The current conditions at Mount Washington, New Hampshire.(FOX Weather)

The Mount Washington Observatory said the dangerously cold wind chills will create life-threatening conditions for those hoping to travel to the higher summits. Due to the harsh cold conditions, a Wind Chill Warning will remain in effect until 1 a.m. EST Sunday.

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