Icy winds set to hit the UK to send feels like temperatures plunging
31st January, 2018
The departing Storm Georgina battered parts of Britain with ferocious winds and pelting rain. And now, in its wake, comes a cold plunge with temperatures dropping to minus four degrees. And with winds likely to remain strong, when combined with the prevailing sub-zero air, it will mean it will feel a lot colder.
Forecasting the feels like temperature
Nowadays, many forecasts and weather apps will give you a feels like temperature as well as the real air temperature to help you work out what it will feel like to be outside and help you to decide what to wear.
Factoring in the wind and humidity
A feels like temperature takes into account wind speeds and humidity to assess how the human body actually feels temperature. So, in winter, a strong wind can feel much colder than the measured temperature would indicate. Conversely, on a humid day in summer, it can feel uncomfortably warmer than the air temperature would suggest.
Calculating the feels like temperature
A feels like temperature is calculated by taking into account the expected air temperature, relative humidity and the strength of the wind at around five feet, the typical height of a human face, combined with an understanding of how heat is lost from the human body during cold and windy days.
Humidity affects the body’s ability to cool
On windy days the speed of moisture evaporation from your skin increases and serves to move heat away from your body making it feel colder than it actually is. The exception to this rule, however, is when higher temperatures are concerned. At higher temperatures, wind chill is considered far less significant. Instead humidity plays a greater role.
When a human being perspires, the water in their sweat evaporates. This results in the cooling of the body as heat is carried away from it. When humidity is high, the rate of evaporation and cooling is reduced, resulting in it feeling hotter than it actually is.
Finding the wind chill formula
A formula has been developed to adjust the air temperature based on the understanding of wind chill at lower temperatures, heat index at higher temperatures and a combination of the two in between.
Don’t be fooled by winter temperatures above freezing
Just because the air temperature is above freezing it doesn’t mean that ice won’t form or melt. Winds can lower the temperature and create problems at your organisation’s workplace. So, why not take action now to protect your customers, visitors and staff from the worst the winter weather can throw at your premises’ pavements, roads and car parks? Make sure your winter gritting and snow clearing is organised by giving is a call today on 01728 633900 for a quote tailored to your site