Saturday, February 4, 2023
HomeWales WeatherLowest Windchill in U.S. Historical past

Lowest Windchill in U.S. Historical past


Mount Washington, New Hampshire is well-known to most meteorologists. 

A mountain-top climate station there may be well-known for possessing the best near-surface wind pace ever recorded within the U.S.:  231 mph.

However in the present day, the Mount Washington Observatory has damaged one other file:  the bottom windchill temperature ever recorded within the U.S.

Reminder:  windchill temperature combines wind and temperature to offer a measure of how a lot warmth you’re dropping if you end up outdoors.  Decrease windchill temperature means a quicker lack of warmth out of your pores and skin.

If there isn’t a wind, temperature and windchill temperature are the identical.  However as wind pace will increase, the windchill temperature drops beneath the efficient temperature, since wind will increase the lack of warmth out of your pores and skin.    

The earlier U.S. windchill file was -100F noticed at McGrath Alaska.  That file has now been changed by -107F at Mount Washington in the present day, the mixture of a temperature of -46F and windspeed of 95 mph (see beneath)


Doubtlessly, the windchill could decline even additional through the subsequent few hours.

Windchills beneath -98F should not even proven on the official Nationwide Climate Service windchill chart (beneath).  At a windchill beneath -100F, frostbite happens on uncovered pores and skin with 1-3 minutes.


Taking a broader view, the present temperatures over the Northeast US are gorgeous, with teenagers over coastal Lengthy Island to round -20F over NE New York.


A number of day by day data ought to be damaged for file chilly through the subsequent day.

Coupled with highly effective winds, the windchills throughout the Northeast vary from -50F over Maine and -11F over coastal New England, to -20/-30F over upstate NY.  


The Northwest had a blustery day in the present day, and a few showers and typical temperatures are anticipated this weekend.  Yawn.

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