Presentation on theme: "By: Megan, Makayla, LT, and Eric"— Presentation transcript:
1By: Megan, Makayla, LT, and Eric Dust and Sand StormsDust and Sand StormsBy:Megan, Makayla, LT, and EricBy Megan, Makayla, L.T. and Eric
2The form of the StormDust Storms form when strong winds carry dust over a large area. During a cold front, convection occurs and results in strong flows of wind,picking up particles of sand or dust and thus making a sand storm.
3Damages of DustDroughts (the longer the dust storm, the longer the drought)Dirty homesDeath of vegetation as well as animals and humansBreathing problems
4Occurs in:Areas lacking vegetationDeserts (dry and semi-dry areas)
5Worst OccurrencesChina, April covered 10 cities and many power and water supplies ran out. Some dust blew all the way to the USA.The Dust Bowl, 1930’s- in the midwest of the USA. Lasted for eight years. Traveled from the South to the North and caused many farmers to move west.
6Most Recent StormSan Joaquin Valley, California- happened on November 29, Visibility was 10 feet or less. On Interstate 5, a huge traffic accident occurred involving 164 cars, 151 injuries, and 17 deaths.
7Safety Tips If at all possible, avoid a dust storm While driving, pull off to the side of the road and turn your lights off. Set the emergency brake and take your foot off the pedalIf you have to keep driving, turn on your lights, sound the horn occasionally, and use the center line to guide youNever stop on the road
8Families were forced out of their homes because of dust. People slept with wet cloths on their noses and mouths to keep dust out of their lungs.Dishes and cups were kept upside down before meals to keep out dust.
9Microbursts Small downdrafts Make winds More than 280 km/h Come with thunderstormsCan ruin aviation
10Dust Devils Rotating winds Not associated with thunderstorms Invisible unless they collect dust or debrisForm when air is heated by hot weatherHappens in arid or semi-arid regions
11Resources www.google.com www.google.com/images www.Weather.gov Here’s a video of a dust storm in Australia!