1. Recurring Weather SWBAT describe recurring weather patterns and the problems they create; identify atmospheric events that cause recurring weather patterns

2. Floods and Droughts  Drought Extended periods of well-below-normal rainfall Extended periods of well-below-normal rainfall  How do droughts happen? Results of shifts in global wind patterns that allow high pressure systems to persist for weeks or months over an area Results of shifts in global wind patterns that allow high pressure systems to persist for weeks or months over an area

3. Heat Waves  Heat waves Extended periods of above-normal temperatures Extended periods of above-normal temperatures  How do heat waves happen? Similar to how droughts form. Similar to how droughts form. Air under a high pressure system sinks, warms due to compression and causes above normal temperatures. Air under a high pressure system sinks, warms due to compression and causes above normal temperatures. It also blocks cooler air masses. It also blocks cooler air masses.

4. Cold Waves  Cold waves An extended period of below-normal temperatures An extended period of below-normal temperatures  How do cold waves happen? These also form due to a high pressure system persisting. These also form due to a high pressure system persisting. Occur within continental polar or arctic regions. Occur within continental polar or arctic regions.

5. Cold Waves  Wind-chill factor Wind transports heat away from a body, which worsens the effect of the cold Wind transports heat away from a body, which worsens the effect of the cold  Describe recurring weather patterns and the problems they create.  Identify atmospheric events that cause recurring weather patterns.

6. Get your lab notebooks  Title: Making and Using Graphs Calculating averages Calculating averages Add up the max and the min and divide by 2Add up the max and the min and divide by 2 Creating a graph Creating a graph Label your x axis with the temperatures, start at 60 and go up to 100 labeling by 5’sLabel your x axis with the temperatures, start at 60 and go up to 100 labeling by 5’s Label your y axis with the days, 1-10Label your y axis with the days, 1-10 Use different colors for the min, the max, and the averageUse different colors for the min, the max, and the average Answer the thinking critically questions Answer the thinking critically questions

7. With a partner  Answer questions 1-7 on page 351  Be sure to use complete sentences  Finish for homework