Category 2 - Weather Forecasts

Weather Forecasts

The weather network:

	TuesdayEveningEvening: 6:00 PM - 11:59 PM	TuesdayOvernightOvernight: 12:00 AM - 5:59 AM	WednesdayMorningMorning: 6:00 AM - 11:59 AM	WednesdayAfternoonAfternoon: 12:00 PM - 5:59 PM	WednesdayEveningEvening: 6:00 PM - 11:59 PM
	Variable cloudiness	Variable cloudiness	Few flurries	Cloudy with sunny breaks	Variable cloudiness
Temp.	-29°C	-30°C	-28°C	-24°C	-27°C
Feels Like	-41	-38	-35	-34	-38
Wind	W 15km/h	W 5km/h	W 10km/h	N 15km/h	NW 15km/h
Wind gusts	km/h	km/h	km/h	km/h	km/h
Relative Humidity	68 %	68 %	69 %	69 %	69 %
P.O.P.	20 %	20 %	40 %	30 %	20 %
Dew Point The dewpoint is a measure of atmospheric moisture. It is the temperature at which air must be cooled in order to reach saturation (assuming that air pressure and moisture content are constant). As the surface of the earth cools at night, warm moist air near the ground is chilled and water vapour in the air condenses into droplets on the grass and other objects. Dew is particularly heavy on clear nights, when the earth cools rapidly. When a blanket of cloud insulates the earth, the cooling rate is slower. The greater the difference between the temperature and the dew point, the drier the air. More weather definitions »	°C	°C	°C	°C	°C
Pressure	kPa	kPa	kPa	kPa	kPa
Rain	-	-	-	-	-
Snow	-	-	less than 1 cm

TimeandDate.com

Wed Thu Fri Sat Sun Mon Tue Jan 30 Jan 31 Feb 1 Feb 2 Feb 3 Feb 4 Feb 5 Weather: Description: Mostly cloudy. Cold. More sun than clouds. Cold. Mostly cloudy. Chilly. More clouds than sun. Cool. More clouds than sun. Cool. Decreasing cloudiness. Cool. Morning clouds. Chilly. High temperature: -26 °C -21 °C -6 °C -2 °C -2 °C -2 °C -2 °C Low temperature: -32 °C -33 °C -19 °C -8 °C -10 °C -9 °C -9 °C Comfort Level: -37 °C -37 °C -16 °C -12 °C -9 °C -9 °C -9 °C Wind Speed: 16 km/h 15 km/h 9 km/h 11 km/h 17 km/h 18 km/h 18 km/h Wind Direction: Weatheroffice.com Forecast Today -24°C* Wed -24°C -28°C Thu -28°C -35°C Fri -4°C -31°C Sat -2°C -6°C Sun -10°C -17°C Mon -8°C -15°C * - Denotes an abnormal temperature trend Issued : 11:00 AM CST Tuesday 29 January 2013 Today Snow ending early this afternoon then clearing. Amount 2 to 4 cm. Wind northwest 30 km/h gusting to 50. Temperature falling to minus 24 this afternoon. Wind chill minus 34. Tonight A few clouds. Wind northwest 20 km/h becoming light this evening. Low minus 28. Wind chill minus 38. Wednesday Mainly sunny. High minus 24. Thursday Sunny. Low minus 35. High minus 28. Friday Sunny. Low minus 31. High minus 4. Saturday Sunny. Low minus 6. High minus 2. Sunday A mix of sun and cloud. Low minus 17. High minus 10. Monday A mix of sun and cloud. Low minus 15. High minus 8. 

Wacky Weather

Mirages: A mirage is the image of an object or a sky where it is not present. This is caused when light is refracted, often mirages are seen on hot surfaces like a pavement or desert.

Mammatus Clouds: Mammatus clouds are odd-shaped clouds that are often seen before a storm. It is still unsure of how they form.

Firewhirls: A firewhirl is what happens when a tornado is spinning too close to a forest fire or it can be a whirl created from too much heat in the area.

Weather Related Events

Weather advisorys are classified by three colors. Red for warning, yellow for watch, and green for just ended.

Here are some videos on current weather events:

http://www.youtube.com/watch?v=PDVBH_AVxss&list=UUGTUbwceCMibvpbd2NaIP7A&index=37

http://www.youtube.com/watch?v=Tdl_YClfbRo&list=PLCCCBC06B3D1DFA90

http://www.youtube.com/watch?v=awSPtGRSCvM&list=PLCCCBC06B3D1DFA90

The Atmosphere

The Atmosphere

Our atmosphere is made up of five layers. The Troposphere, Stratosphere, Mesosphere, Thermosphere, and the Exosphere.

 

The troposphere is the first layer of the atmosphere. It begins at the surface and extends 10 km.
Within the troposphere, 80% of the atmospheres mass is located here.

The stratosphere is the second layer of the atmosphere. The temperature increases with height because of the increased absortion of ultraviolet radiation from the ozone layer.

The mesosphere is the third layer of the atmosphere and this is the layer where most meteors burn when entering the atmosphere. Unlike the stratosphere the mesosphere decreases temperature with height. Due to such cold temperatures, ice clouds form in the mesosphere.

The thermosphere is the fourth layer of the atmosphere.

The final layer of earths atmosphere is the exosphere. It is mainly composed of hydrogen and helium. Particles in this part of the atmosphere are so far apart that they can travel hundreds of km without colliding with one another.

Sources: http://en.wikipedia.org/wiki/Atmosphere_of_Earth

Ozone Layer.

The Ozone layer is the layer of ozone gas in the upper atmosphere. This gas plays a huge role is protecting humans and other things from the harmful ultraviolet rays of the sun.
In 1977, scientists discovered that man made chemicals had the potential to destroy the ozone layer, and this a problem we are now facing in modern times. Slowly, the ozone layer is disappearing.
Watch this video to learn more: http://www.youtube.com/watch?v=6QyI3Yo1sf4



Category 1: Weather

Weather and Climate

Weather and Climate

Weather: Weather can be described as the atmosphere at a certain place and time regarding the heat, cloudiness, dryness, wind, rain, sunshine, snow, ect.

Climate: Climate can be described as the weather conditions showing in a general area over a long period of time. For example, the climate in Mexico can be described as hot, humid, and dry.

The climate in Ireland can be described as moist, mild, and changeable with abundant rainfall.

Why The Weather?

People all around the world have a high interest in the weather because of it's ever changing state. All around the world people take interest in the weather and why it changes. Day to day the weather can change at an instant, for no reason at all. If a volcano erupts, it often affects the weather in many different parts of the world. When a tsunami hits, it too affects the weather in different continents. Our world needs balance and when something throws it off, one of the outcomes is the changing of weather.