Thunderstorm Power Point

Middle School Meteorologist?

The Importance of Weather ForecastingMeteorologist JobsOperational Forecaster analyzes weather conditions and issues forecasts or alerts. Research Meteorologist studies more specific areas of weather like severe weather or climate change. Military Meteorologists makes weather observations and forecasts for missions around the world. Storm Chasers: https://tvnweather.com/live Other job functions that they have: Help airlines know weather conditionsHelp electric companies know if a heat wave is comingHelp road crews with snow/hail predictionsHelp fruit/vegetable farmers to know when to turn their sprinklers on when a cold snap might be occurring. Help with radio and television stationsHelp in teachingSensors Middle School MeteorologistsCan you predict the next thunderstorm?

Five Ways to Predict the WeatherTemperatureis a measure of the airs hotness or coldness and is the most measured quantity of the atmosphere.Humiditythe amount of water vapor in the airWind Speed and Wind Directionmoving air caused by differences in air pressure. Air moves from an area of higher pressure to an area of lower pressure. If there were no wind, there wouldnt be much day-to-day difference in our weather.Dew PointThe temperature at which the air can no longer "hold" all of the water vapor, which is mixed with it, and some of the water vapor must condense into liquid water.Atmospheric PressureAtmospheric pressure is a measure of the weight of air in atmosphere above us. Air is made up of molecules of elements in gaseous state and minute dust particles.

EQ: How can I use the TI Sensor to predict the weather?

Accessing/Using the TI SensorGo to your tablets and select the BLE Sensor Tag appPick up your sensor and press the power button on the right hand side of the device.Please wait for the teacher. We will do this group by group to ensure that you are using the correct sensorClick the scan button and find your device. Once you find your sensor, please observe your sensor that you have available.

TI Sensors You Will Use to Predict the Weather? Humidity - a quantity representing the amount of water vapor in the atmosphere or a gas

Barometer - an instrument measuring atmospheric pressure, used especially in forecasting the weather and determining altitude.

Background KnowledgeBarometric Pressure: In a high pressure system, there are cooler temperatures and clear skies. In a low pressure system, there is warmer weather, storms, and rain.Barometric Pressure is measured in millibars.Average Barometric Pressure is 30 HumidityThe amount of moisture the air can hold before it rains. 100% Humidity is the most it can hold. Average Humidity in Raleigh, NC is 70%.

Identifying the ProblemCan you predict a thunderstorm using only the Humidity and Barometer sensors on the SensorTag? Making a HypothesisIf ___________________, then _________________________.

Examples: If the Humidity is 100%, then precipitation will occur. If the barometric pressure is high, then the sky will be clear. Recording Your DataAs a class, we are going outside to record the humidity and barometric pressure for five days. You will be in groups of four. Responsibilities: Sensor Tag HolderSmart Phone HolderData Sheet ReporterTime KeeperInstructions: Hold Sensor Tag out in front of you for five minutes in order for the data to populate. After five minutes, record the numbers you get for the humidity and barometric pressure onto the data chart given. Record Your DataDayHumidityBarometricChance of Thunderstorm (Yes/No)12345GraphWith your group, decide which graph will display the trend of the data you all collected: line, bar, or pie graph. It is okay if you do not all agree. Then, each person should create two graphs of the data points collected in their interactive notebooks. One graph will be on humidity and the other will be barometric pressure. X-axis: # daysY-axis: % of humidity and barometric pressure levelsReflection QuestionsWhich day had the highest humidity during data collection? When humidity is projected to be 100%, what does this mean? Which chart type did you choose to represent your data and why? Would recording your data after one minute yield the same results as five minutes? Look at your chart. Which days should there be a thunderstorm? How do you know a thunderstorm will occur on these days?