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The heat index and humidex measure the effect of humidity on the perception of temperatures above +27 °C (81 °F). In humid conditions, the air feels much hotter, because less perspiration evaporates from the skin. The wind chill factor measures the effect of wind speed on cooling of the human body below 10 °C (50 °F). As airflow increases ...
During extreme cold events, you may hear a loud boom and feel like you have experienced an earthquake. However, this event was more likely a cryoseism, also known as an ice quake or a frost quake ...
Freezing [1] or frost occurs when the air temperature falls below the freezing point of water (0 °C, 32 °F, 273 K). This is usually measured at the height of 1.2 metres above the ground surface. This is usually measured at the height of 1.2 metres above the ground surface.
Wind chill index values for a range of temperatures and wind speeds, from the standard wind chill formula for Environment Canada. Wind chill (popularly wind chill factor) is the sensation of cold produced by the wind for a given ambient air temperature on exposed skin as the air motion accelerates the rate of heat transfer from the body to the surrounding atmosphere.
Unlike rain, freezing rain does not generally runoff until it is warm enough to melt. Often the only way to get rid of ice is to wait for it to melt or to melt it with salt if you have it on hand ...
A dramatic pattern shift is bringing the chilliest air since spring to millions of people in the central and eastern United States, making areas that have struggled so far to shed lingering warmth ...
Water has a thermal conductivity 25 times and a volume-specific heat capacity over 3000 times that of air; subsequently, surface cooling is precipitous. The primary components of the cold shock reflex include gasping, tachypnea, reduced breath-holding time, and peripheral vasoconstriction, the latter effect highlighting the presumed physiologic ...
Dual-polarization radar image of an easily identifiable freezing layer, denoted by the yellow ring around the radar. There are several different methods to examine the structure of the temperature of the atmosphere including its freezing level: A radiosonde attached to a weather balloon is the oldest and most common method used. Each area ...