| Feels
Like: |
° |
Last updated 121
minutes ago. |
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Feels Like: Feels Like describes how the combination of
temperature and other meteorological factors feels to the skin.
Presented in degrees Celsius / Fahrenheit, the Feels Like temperature provides a more
accurate representation of the impact of weather on humans.
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Barometer: |
and |
Last updated 121
minutes ago. |
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Barometer: The Atmospheric Pressure measured at the time of
the observation. The pressure exerted by the atmosphere at a given
point. Generally, high pressure signifies good weather, while low
pressure is usually accompanied by bad weather. The barometer is
presented in millibars.
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Humidity : |
% |
Last updated 121
minutes ago. |
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Relative Humidity: A measure of the moisture level in the
air that considers the ratio of the amount of water vapour in the air at
a specific temperature to the maximum amount that the air could hold at
that temperature, expressed as a percentage.
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Visibility: |
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Last updated 121
minutes ago. |
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Visibility: The greatest distance from which one can see
prominent objects with normal eyesight. The visibility is presented in
miles/kilometers.
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UV Index: |
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Last updated 121
minutes ago. |
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UV Index: The Weather Channel has developed an hourly
ultraviolet (UV) index to help you prevent overexposure to the sun's
rays. This index changes every hour in order to help you monitor how
observed hourly changes in the sky conditions impact on the
skin-damaging solar UV radiation we receive while out of doors. The hourly UV
index is a theoretical calculation that uses meteorological reports
updated every hour (cloud cover, visibility and present weather) in
addition to atmospheric ozone concentration, solar elevation and
altitude above sea level. The UV index depends directly on the solar
elevation above the horizon. Six risk level
categories (0-2 Minimal, 3-4 Low, 5-6 Moderate, 7-9 High, 10 Very
High, 10+ Extreme) are used to indicate the levels of skin-damaging
UV radiation, based on guidelines compiled by dermatologists. On a daily basis the UV index will be
higher around local solar noon (11:00 AM to 1:00 PM). Cloud-free days in
the winter will have lower UV index values than cloud-free days in the
summer, owing to the higher solar angles in the summer. The UV index
corresponds to the erythemal UV irradiance from 290 to 400 nm in milli-Watts
per square meter divided by 25.
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UV Category: |
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Last updated 121
minutes ago. |
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UV Category: Six risk level
categories (0-2 Minimal, 3-4 Low, 5-6 Moderate, 7-9 High, 10 Very
High, 10+ Extreme) are used to indicate the levels of skin-damaging
UV radiation, based on guidelines compiled by dermatologists.
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Dewpoint: |
°
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Last updated 121
minutes ago. |
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Dew Point: The
temperature at which air at a constant pressure becomes saturated
(forming dew or fog). Presented in degrees Celsius / Fahrenheit.
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Sunrise: |
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Last updated 121
minutes ago. |
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Sun Rise This
is the point that the sun rises. Twilight will occur before this
time.
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Sunset: |
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Last updated 121
minutes ago. |
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Sun Rise This is the point that
the sun sets. Twilight will occur after this time.
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| Wind:
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Last updated 121
minutes ago. |
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Wind Speed and
Direction: The rate of motion of the air and
the direction from which the air is moving.
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Moon Phases:
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Last updated 121
minutes ago. |
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Although this
cycle is a continuous process, there are eight distinct,
traditionally recognized stages, called phases. The phases
designate both the degree to which the Moon is illuminated and
the geometric appearance of the illuminated part. These phases
of the Moon, in the sequence of their occurrence (starting from
New Moon), are listed below.
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(1) New Moon - When the Moon is roughly in the same
direction as the Sun, its illuminated half is facing away from
the Earth, and therefore the part that faces us is all dark: we
have the new moon. When in this phase, the Moon and the Sun rise
and set at about the same time.
(2) Waxing Crescent Moon - As the Moon moves around the
Earth, we get to see more and more of the illuminated half, and
we say the Moon is waxing. At first we get a sliver of it, which
grows as days go by. This phase is called the crescent moon.
(3) Quarter Moon - A week after the new moon, when the
Moon has completed about a quarter of its turn around the Earth,
we can see half of the illuminated part; that is, a quarter of
the Moon. This is the first quarter phase.
(4) Waxing Gibbous Moon - During the next week, we keep
seeing more and more of the illuminated part of the Moon, and it
is now called waxing gibbous (gibbous means "humped").
(5) Full Moon - Two weeks after the new moon, the moon is
now halfway through its revolution, and now the illuminated half
coincides with the one facing the Earth, so that we can see a
full disk: we have a full moon. As mentioned above, at this time
the Moon rises at the time the Sun sets, and it sets when the
Sun rises. If the Moon happens to align exactly with the Earth
and Sun, then we get a lunar eclipse.
(6) Waning Gibbous Moon - From now on, until it becomes
new again, the illuminated part of the Moon that we can see
decreases, and we say it's waning. The first week after full, it
is called waning gibbous.
(7) Last Quarter Moon - Three weeks after new, we again
can see half of the illuminated part. This is usually called
last quarter.
(8) Waning Crescent Moon - Finally, during the fourth
week, the Moon is reduced to a thin sliver from us, sometimes
called waning crescent. |
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