Warm Friday Morning
Good Morning Augusta.
This morning it is partly cloudy with a chance of a thunderstorm and a
chance of rain, then thunderstorms and rain showers in the afternoon. High
of 90F. Winds from the SSE at 5 to 10 mph. Chance of rain 60%.
Tonight it will be mostly cloudy with a chance of a thunderstorm and a
chance of rain. Low of 63F. Winds less than 5 mph. Chance of rain 60%.
The readings outside right now, taken from my own weather instruments are:
a relative humidity of 66% with a Dew Point of 63.5º F.
The temperature is 75.6ºF.
Presently we have Northeast winds between 2.9 mph and 4.0 mph.
Our Barometric pressure is 29.68/HPA 1005.0 and falling with a weather
graphic indicating rain.
UV is 1 out of 16, sunset will be at 8:26 PM with Moon Rise at 7:57 a.m.
Eastern Daylight Time, and the moon phase is Waxing Crescent.
We had no precipitation in this area overnight.
Visibility is 10.0 miles / 16.1 kilometers with scattered clouds to 6500 ft
/ 1981 m and mostly cloudy to 9000 ft / 2743 m.
Now that its brutally hot out there, just what is the Heat Index?
Wikipedia, the free encyclopedia
The heat index (HI) is an index that combines air temperature and relative
humidity in an attempt to determine the human-perceived equivalent
temperature — how hot it feels, termed the felt air temperature. The human
body normally cools itself by perspiration, or sweating, which evaporates
and carries heat away from the body. However, when the relative humidity is
high, the evaporation rate is reduced, so heat is removed from the body at a
lower rate causing it to retain more heat than it would in dry air.
Measurements have been taken based on subjective descriptions of how hot
subjects feel for a given temperature and humidity, allowing an index to be
made which relates one temperature and humidity combination to another at a
higher temperature in drier air.
The heat index was developed in 1978 by George Winterling as the "humiture,"
and was adopted by the National Weather Service a year later. It is derived
from work carried out by Robert G. Steadman. Like the wind chill index, the
heat index contains assumptions about the human body mass and height,
clothing, amount of physical activity, thickness of blood, sunlight and
ultraviolet radiation exposure, and the wind speed. Significant deviations
from these will result in heat index values which do not accurately reflect
the perceived temperature.
In Canada, the similar "humidex" is used in place of the heat index. The
humidex is not described here.
This morning it is partly cloudy with a chance of a thunderstorm and a
chance of rain, then thunderstorms and rain showers in the afternoon. High
of 90F. Winds from the SSE at 5 to 10 mph. Chance of rain 60%.
Tonight it will be mostly cloudy with a chance of a thunderstorm and a
chance of rain. Low of 63F. Winds less than 5 mph. Chance of rain 60%.
The readings outside right now, taken from my own weather instruments are:
a relative humidity of 66% with a Dew Point of 63.5º F.
The temperature is 75.6ºF.
Presently we have Northeast winds between 2.9 mph and 4.0 mph.
Our Barometric pressure is 29.68/HPA 1005.0 and falling with a weather
graphic indicating rain.
UV is 1 out of 16, sunset will be at 8:26 PM with Moon Rise at 7:57 a.m.
Eastern Daylight Time, and the moon phase is Waxing Crescent.
We had no precipitation in this area overnight.
Visibility is 10.0 miles / 16.1 kilometers with scattered clouds to 6500 ft
/ 1981 m and mostly cloudy to 9000 ft / 2743 m.
Now that its brutally hot out there, just what is the Heat Index?
Wikipedia, the free encyclopedia
The heat index (HI) is an index that combines air temperature and relative
humidity in an attempt to determine the human-perceived equivalent
temperature — how hot it feels, termed the felt air temperature. The human
body normally cools itself by perspiration, or sweating, which evaporates
and carries heat away from the body. However, when the relative humidity is
high, the evaporation rate is reduced, so heat is removed from the body at a
lower rate causing it to retain more heat than it would in dry air.
Measurements have been taken based on subjective descriptions of how hot
subjects feel for a given temperature and humidity, allowing an index to be
made which relates one temperature and humidity combination to another at a
higher temperature in drier air.
The heat index was developed in 1978 by George Winterling as the "humiture,"
and was adopted by the National Weather Service a year later. It is derived
from work carried out by Robert G. Steadman. Like the wind chill index, the
heat index contains assumptions about the human body mass and height,
clothing, amount of physical activity, thickness of blood, sunlight and
ultraviolet radiation exposure, and the wind speed. Significant deviations
from these will result in heat index values which do not accurately reflect
the perceived temperature.
In Canada, the similar "humidex" is used in place of the heat index. The
humidex is not described here.
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