Weather 3/17/17

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This week we were studying weather. We had many things to study.

Humidity

Humidity is the amount of water vapor in the air. The two kinds of humidity are absolute humidity and relative humidity. The difference between absolute humidity and relative humidity is absolute humidity is the exact amount of water vapor in the air and relative humidity is how much water in the air compared with how much COULD be in the air. The most common way to measure humidity is relative humidity. `


Temperature

Temperature measures the hot or coldness of the air. There are 3 scales:  Kelvin, Celsius, and Fahrenheit.  The units are degrees.

Convert 55oF to Celsius	55oF converted to oC is  12oC
Convert 25 oC to Fahrenheit	25 oC converted to oF is  77oF
Calculate the Wind Chill Factor if the temperature is 35oF and the wind speed is 10 MPH.	If the temperature is 35oF and the wind speed is 10 MPH, the Wind Chill Factor is 27oF and -3 oC

Wind speed and direction

Complete the following chart using a wind speed of 22 MPH. ADD THE CORRECT UNITS

mph (miles per hour)	22 mph
knots	19.1 knots
m/s (meters per second)	9.8 m/s
ft/s (feet per second)	32.3 ft/s
km/h (kilometers per hour)	35.4 km/h

Air Pressure

Air pressure makes the wind fast and slow. That is its role. Air molecules invisibly floating in space give wind its mass. The three elements that affect air pressure are 1) The height above sea level, 2) Temperature 3) Amount of water vapor in the air.

The Coriollis Effect

The Coriollis effect is a phenomenon that causes water and air to spin as they travel across the Earth.

Precipitation

Five main forms of precipitation:  rain, sleet, snow, freezing rain and hail.  The following website outlines the atmospheric conditions that allow each type of precipitation to form.  Precipitation can be measured with a rain gauge.  

Sleet, snow and freezing rain will impact our area because our city isn’t used to having snow, sleet, and freezing rain.

Tornados

Below are two exciting tornado facts: 

A Tornado can occur at any time, but most often between 3pm and 9pm.

Tornadoes have been reported in every state in the US and also in every season.

Hurricanes

These are the things needed for a hurricane:

Low wind shear

2. Very moist humidity

3. Sea temperature 26.5 degrees C

4. 5-30 degrees North (latitude)

The last “key ingredient” that we need for a hurricane is a tropical disturbance, like an earthquake or a tidal wave.

Drought

The difference is between March 15, 2016 and March 14, 2017.

Move the slider left and right to see how the conditions have changed. Click on Legend to help you understand what the colors mean. How have the drought conditions changed in the last year?

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Floods

My family would use this information to stay safe and know what to do in a time of flood. 

Tsunami

List 2 facts about a tsunami.

“Approximately every 15 years a destructive, ocean-wide tsunami occurs.” Tsunamis are usually caused my underwater earthquake or volcanic expolosion.

Conclusion

Write down 3 things that you think is important information.

I think that the most important thing to know is how to be safe in extreme weather conditions. The floodwatch told me what to do if San Jose ever flooded and how to be safe. That would be important because if you knew what to do, you would stay alive with maybe a few damages to your house and be alive. But if you didn’t know what to do, than you drown, get sucked into a twister, drown again from a tsunami, or be swept out to sea by a hurricane. Then your house would be worthless. So keep up to date with the weather and stay safe. :)

I think that the second most important thing is knowing all about extreme weather conditions so you know when they may end or what to do in a situation. Like knowing what happens during a hurricane can really help you know what you and your family has to do to be safe. You can know what to bring with you and you can know what to find, like higher ground. Also, you might have looked up what to do in a tornado and maybe you dug a basement. So hide there! :)

I think that the third most important thing is having knowledge and being prepared for any type of extreme weather. You can be safe during something that may cause harm to you and your family. That would be good, so that you can be prepared for anything. If you see any strange weather patterns, get inside, or be prepared for anything. It is good to know what weather does and what types to watch out for. :)