Precipitation is the falling to earth of any form of water (rain, snow, hail, sleet or mist)
Rain Storm displays the rain total of the last rain event. It takes 24hrs without rain to end a rain storm.
Dew point is the temperature to which air must be cooled for satuation to occur.
Dew point is an inportant measurement used to predict the formation of dew, frost, and fog.
If dew point and temperature are close together in the late afternoon when the air
begins to turn colder, fog is likely during the night. Low dew point indicates low water vapour;
high dew point indicates high water vapour content and indicates a better chance of rain and severe thunderstorms.
Wind chill takes into account how the speed of the wind affects our perception of the air temperature.
Our bodies warm surrounding air molecules. The wind sweeps this layer of molecules away. The faster the
wind blows, the faster heat is carried away and the colder you feel.
Solar radiation is a measure of the intensity of the sun's radiation reaching a horizontal surface.
Energy from the sun reaches the earth as visible, infrared, and ultraviolet (UV) rays. Exposure to
UV rays can cause numerous health problems, such as sunburn, skin cancer, skin aging, and cataracts.
UV Index assigns a number between 0 and 16 to the current UV intensity. The lower the number the less chance of sunburn.
Pressure and Humidity
Barometric pressure changes with local weather conditions. High pressure is generally associated with
fair weather whilst low pressure is generally associated with poor weather. However it is the change
in pressure that is more important. Rising pressure indicates improving weather conditions while falling
pressure indicates deteriorating weather conditions.
Current Barometer reading 30.211 in & Steady.
Humidity refers to the amount of water vapour in the air. How much water vapour air can contain varies
with air temperature and pressure. Relative humidity (humidity reading below) takes this into account and
reflects the amount of water vapour in the air as a percentage of the amount the air is capable of holding.
Realtive humidity is important in determining the evaporation from plants and wet surfaces since warm air
with low humidity has a large capcity to absorb extra water vapour.