1. Notes for Storms (page 99) & Thunderstorms (p103) 17.1 and 17.4 RHW Quizzes Notes for Storms (page 99) & Thunderstorms (p103) 17.1 and 17.4 RHW Quizzes I will be able to: Explain how technology helps forecast the weather. Analyze weather maps. I will be able to: Explain how technology helps forecast the weather. Analyze weather maps. Have 17.4 Notes out.

2. Predicting the Weather Chapter 17 Section 4 Pages 583-589 Chapter 17 Section 4 Pages 583-589

3. Your own Weather Forecasting –You can make your own predictions based on your own observations. Changing air pressure- You can expect a change in the weather. –Falling pressure (Low)- might bring rainy weather –Rising pressure (high)- clear weather Clouds are a sign too. –Cumulonimbus- thunderstorms. –Cirrus- Low pressure might be approaching Objective: I will be able to describe how technology helps predict weather.

4. Weather Forecasting: Meteorologists- are scientists who study the causes of weather and try to predict it. –Interpret information from various sources Local weather observers. Weather balloons. Weather stations. Weather Radar. Satellites –Computers analyze data and help prepare forecasts Objective: I will be able to describe how technology helps predict weather.

5. Weather Technology –Changes in technology Gathering Data Computers Analyzing Data –Have made: Short day forecasts for up to 5 days are more reliable. Long range forecasts possible Objective: I will be able to describe how technology helps predict weather.

6. Weather Balloons –Carry a radiosonde- high into the troposphere and stratosphere. Measures: –Air Pressure –Temperature –Humidity Objective: I will be able to describe how technology helps predict weather.

7. Doppler Weather Radar –Used to find the location, movement and intensity of precipitation. –Can detect what form of precipitation a weather system is carrying. Objective: I will be able to describe how technology helps predict weather.

8. Weather Satellites –First weather satellite was launched in 1960. –Cameras on satellites in the exosphere photograph: Earth’s surface Clouds Storms Ice and Snow Cover Objective: I will be able to describe how technology helps predict weather.

9. Computer Forecasts –Widely used to help forecast weather. –Computers process the large amounts of data gathered quickly to help forecasters make predictions. Objective: I will be able to describe how technology helps predict weather.

10. Computer Forecasts –1. Gathers reported conditions from weather stations. –2. Works through thousands of calculations. Surface conditions, temp, air pressure, wind speed and direction and sunlight. –3. Revises forecasts with new data Creates 12hr, 24hr, 36hr forecasts Objective: I will be able to describe how technology helps predict weather.

11. Weather Maps –A weather map is a “snapshot” of conditions at a particular time over a large area. –Generated by computers and radar information. Objective: I will be able to analyze weather maps.

12. National Weather Service Maps –Data from over 300 local weather stations over the country is assembled into weather maps at the NWS. –Information is converted into a Station Model. 38 1018 34 Temperature Dew Point Air Pressure (millibars) Wind Speed (9-14mph) Wind Direction (Northwest) Cloud Cover (50%) Objective: I will be able to analyze weather maps. On your paper- flip # 38 & 34 so that temp is 38 and dew pt is 34

13. National Weather Service Maps –Curvy lines are drawn where temperature and air pressure are equal (iso). Isobars- lines of equal air pressure. (inches of Hg or millibars) Isotherms-lines of equal temperature. °F or °C. Objective: I will be able to analyze weather maps.

15. News Paper Maps –Simplified versions of NWS maps for the general public. –Standard Symbols Fronts Areas of High and Lower Pressure Precipitation Temperatures Objective: I will be able to describe how technology helps predict weather.

16. Objective: I will be able to analyze weather maps.

17. TV News –Information is received from the National Weather Service or AccuWeather. –Presented in a format the general public can understand. Objective: I will be able to describe how technology helps predict weather.

18. TV News –Typical Format: Current Conditions Weather Across the Local Area –Visible Cloud Satellite and Doppler Radar Weather Across the Country –Visible Cloud Satellite and US Doppler Radar Five Day Forecast –High/Low Temps –Weather Conditions Objective: I will be able to describe how technology helps predict weather.