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Unit 5 Lesson 4 Severe Weather and Weather Safety What do we know about thunderstorms? • A ____________ is an intense local storm that forms strong winds, heavy rain, ___________, thunder, and sometimes hail. • _____________ are a type of severe weather. Severe weather can cause property _______ and sometimes _________. • There are three basic stages to a thunderstorm. • Stage 1 – Warm humid air _______ in an updraft, creating __________ clouds. 1 Unit 5 Lesson 4 Severe Weather and Weather Safety • Stage 2 – _______ particles may form at the top of the cloud. They fall and pull cold air down, creating a __________ and heavy _____ or hail. • Stage 3 – The storm _______ or ends as the downdraft prevents more ______ air from rising. 2 Unit 5 Lesson 4 Severe Weather and Weather Safety • _________ is an electric discharge that happens between positively and negatively _________ areas. • Electrical _________ build up near the tops and bottoms of clouds as pellets of ice move _____ and ______ through the clouds. • ________ is the sound created by the rapid expansion of air along a ________ strike. What do we know about hurricanes? • A ____________ is a tropical lowpressure system with winds blowing at speeds of 119 km/h (74 mi/h) or more. • __________ form from thunderstorms fueled by the __________ of warm ocean water. 3 Unit 5 Lesson 4 Severe Weather and Weather Safety • Winds _______ around the lowpressure _______ of a hurricane. • High ______ and __________ can result from hurricanes and cause massive _________. • A _______ ______ is a huge mass of ocean water that gets pushed onto coastal areas, causing sea levels to rise several ________. • Damages can take ________ to clean up. What do we know about tornadoes? • A ________ is a destructive, rotating column of air with very high wind speeds that is often visible as a __________-shaped cloud. 4 Unit 5 Lesson 4 Severe Weather and Weather Safety • ___________ winds at high altitudes can cause a thunderstorm to spin and create a tornado. • _________ ________ is the location in the __________ where tornadoes are common. • Tornadoes often occur in the _______ and early ___________. • Winds may reach speeds of over _______ km/h. What can people do to prepare for severe weather? • Severe weather can cause property ________, ______, and sometimes ________. • Hail, lightning, high winds, tornadoes, hurricanes, and floods are all _______ _________ events. 5 Unit 5 Lesson 4 Severe Weather and Weather Safety • Plan ahead by creating a storm supply kit that ________ essential safety items. • Listen to the ______ or _____ for storm updates such as watches and warnings of upcoming storms. • A _______ is given when conditions are ideal for severe weather. • A ________ is given when severe weather has been spotted or is expected within ____ hours. • Follow flood safety rules by getting to _______ ground and staying out of floodwaters. What can people do to stay safe during a thunderstorm? • Seek shelter if you hear ________. Stay away from tall _________ and trees. 6 Unit 5 Lesson 4 Severe Weather and Weather Safety • Stay away from _____, ______, and bodies of water. • Avoid using electrical appliances, _______, and running water when indoors. How can people stay safe during a tornado? • Go to a place without windows, such as a ________, ________ ________, or ___________. • Avoid areas where _______ objects may cause harm. • If you are outside, lie in a _______ or low-lying area and protect your _______ with your arms and hands. How can people stay safe during a hurricane? 7 Unit 5 Lesson 4 Severe Weather and Weather Safety • Have a _______ to leave the area and listen for storm updates. • Secure _______ objects and prepare your home. • If told to evacuate, do so ___________. How can people protect their skin from the sun? • ________ in the skin can help protect against _________ (UV) radiation from the sun. • Protect your skin from ________, even on cloudy days. • Prevent sunburn by wearing __________ with a sun protection factor (SPF) of ____ or more. How can people protect themselves from summer heat? 8 Unit 5 Lesson 4 Severe Weather and Weather Safety • _______ __________ occurs when the body has been exposed to high temperatures for too long. • ______ ________ occurs when the body loses its ability to cool itself by ___________. It is life threatening. • Limiting outdoor ________ and drinking lots of _______ can help prevent heat illnesses. • Heat ______ symptoms include high body __________, rapid pulse, shallow _________, disorientation, loss of ___________, and hot, dry skin. • ______ _______ victims need emergency help. 9