State Objectives c, e, h
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- Parts of the Water Cycle
- Disturbances, Depressions, and Storms
- Conditions Required for Formation
- Strongest Hurricanes in History
- Hurricane Katrina (2005)
| Weather
State Objectives 4.c, 4.e, 4.h. Discussion What are some ways in which weather affects your everyday life?
Temperature Air Pressure Humidity
Wind Clouds
Precipitation Main cause for changes in weather is energy from the ____________.
Indicates the amount of ___________ (kinetic energy) in the atmosphere. Represents the _______________ of the molecules. The ________________ the temperature, the faster the air molecules are moving. Warmer air rises and cooler air sinks which causes ___________________ currents. Measured with a _______________________ Standard unit is ________________________ (°F) SI Unit is _______________________ (°C)
Air has weight because it has ________________. Air pressure is a ___________________ of the force of air being exerted on a given area of Earth’s surface. As temperature __________________________ pressure decreases. Cool air is more dense, which causes it to sink (high pressure). As altitude ___________________ air pressure decreases. Weather and Air Pressure Changes in pressure indicate a change in __________________ is approaching. ________________________ pressure systems are associated with clouds & precipitation.
Steady pressure indicates current conditions will ___________________. Measured with a _________________________ in inches of mercury or in millibars.
Amount of _________________________in the air. _______________ humidity is a ______________________of the amount of water vapor in the air compared to the maximum amount of water vapor it can hold at that temperature. The ___________________ the temperature the __________________ water vapor it can hold. _________________________ means the air is holding 100% of the water vapor it can hold at that temperature. Measured with a _______________________ or a psychrometer.
Dew is the water vapor that has ___________________ on a surface into a liquid. Depends on two factors: Amount of _____________________ in the air Temperature near the ______________ Dew point is the _____________________ at which water vapor condenses into a liquid.
Caused by differences in __________________ Air moves from areas of high pressure to areas of low pressure Wind Speed Measure of how ______________ the air is moving. Measured with an _____________________. Wind Direction Direction from which the wind is _________________ NOT the direction it is blowing Ex. North winds blow from N to S Measured with a ________________.
Blow steadily across Earth in paths that are thousands of kilometers long Steer weather in certain directions (usually _____________________ in the U.S.) Caused by ______________________ from the sun The sun does not heat the surface evenly causing uneven heating of the atmosphere.
__________________________at high altitudes are bands of strong winds (up to 350 km/h) near the top of the troposphere at the northern and southern boundaries of the prevailing westerlies. Race from __________________ to ____________________. Clouds Clouds form when air rises, cools, and condenses. They are classified according to their _______________ and ___________________.
1. _________________- a low, puffy cloud that forms on sunny days when heat from the surface causes warm air to rise. 2. _________________- a low, gray, sheet-like cloud that forms when warm, moist air moves over cooler ground. They are seen most often during the winter and may bring steady rain. 3. __________________________ (thunderheads) - vertical clouds that may be over four miles tall. They form where cold air forces warm air to rise quickly. 4. ___________________- high, featherlike clouds. They are the highest clouds in the sky. They do not produce precipitation.
_____________________________________ – occurs when drops of water or crystals of ice become too large to be suspended in a cloud and fall in the form of __________________________________________________________ The Water Cycle Earth’s surface is about 70% water and it exists in all three states. The _________________ is the constant movement of water on Earth. The __________________ provides the energy for the water cycle.
1. ______________ occurs when water changes from a liquid into a gas after gaining heat energy from the Sun. 2. __________________ is the evaporation of water from the leaves of plants. 3. __________________occurs when water vapor changes into liquid water to form clouds or fog. 4. __________________ occurs when water droplets fall to Earth.
An _______________ is a large body of air that develops over a particular region. I  t has _______________________of the area over which it develops.
___________________ air masses come from Canada and ___________________ air masses develop over Mexico.
A __________________ is a boundary between two air masses. When two fronts meet, the cold air mass will move under the warm air mass because the _________ air is more dense.
1. A _________________ forms when a cold air mass pushes under a warm air mass. Cumulus clouds form and thunderstorms may occur. 2. A __________________ forms when a warm air mass moves up and over a cold air mass. Cirrus and stratus clouds form and light, steady precipitation occurs. Warm and Cold Fronts Types of Fronts 3. A __________________ front forms when a warm air mass meets a cold air mass but neither advances. 4. An ___________________ front forms when a fast-moving cold air mass overtakes a slower warm air mass. Weather is similar to, but less severe than, the weather along a cold front.
A scientist that studies the weather & uses the data to make ____________________ about weather. Observe patterns & create weather maps A weather ____________________is a prediction of present conditions based on observations and data.
_________________________: allow meteorologists to monitor weather on the global scale _________________________: uses electromagnetic waves to monitor velocity and altitude. Severe Weather
_________________________ is huge electrical discharges. A ___________________ is a violent, whirling wind that moves in a narrow path over land.
A __________________ is issued when conditions are favorable for severe weather to occur. A ___________________ is issued when severe weather has been sighted. The _______________________monitors weather and issues watches and warnings when appropriate. What is a Hurricane? A _____________________ is a low-pressure system that forms over tropical oceans. Also called ____________________or tropical _________________________. Named for the Mayan god Hurakan who blew his breath across the water.
A ________________________is an area of organized convection that originates in the tropics. It has no eye or rotation. A ________________________is a cyclone that has a maximum wind speed of 38 mph. A ________________________ has a wind speed between 39 mph and 73 mph. Conditions Required for Formation Warm ocean waters of at least ____________. ____________________________ in the troposphere. An atmosphere that quickly cools with altitude. A distance of at least ______________________ from the equator. A surface system with ____________________________winds. Low wind shear. _______________________ is the rate of wind speed or direction change with altitude.
Parts of a Hurricane The _______ is the circular area of calm, relatively light winds at the center of a hurricane. It is the area of _______________ pressure. The __________________is the ring surrounding the eye that contains the highest wind speeds.
When Hurricanes Occur The Atlantic hurricane season lasts from ____________________ These dates include about 97% of hurricanes. Most occur from August to October.
The Atlantic hurricane season lasts from __________________________________ These dates include about 97% of hurricanes. Most occur from ___________________________. Tracking Hurricanes Hurricanes can be tracked using _______________, _____________ (near land), and hurricane hunters. _________________________ is the nickname of the 53rd Weather Reconnaissance Squadron of the Air Force Reserve. They are based in Biloxi, Mississippi. Gathers data including ________________________________________________________________ from the planes altitude to the water’s surface.
Depends on where the hurricane forms. Trade winds cause hurricanes to move __________ to ____________ near the equator. As hurricanes move north, they begin to turn back to the ______________.
Hurricanes are named to ease communication between the government, forecasters, and the public. Naming Atlantic storms began in ______________________ 2012 List of Names-Alberto, Beryl, Chris, Debby, Ernesto, Florence, Gordon, Helene, Isaac, Joyce, Kirk, Leslie, Michael, Nadine, Oscar, Patty, Rafael, Sandy, Tony, Valerie, and William.
The ________________________ scale is uses wind speed to rate the strength of hurricanes. Category _____ 74-95 mph Minimal Category _____ 96-110 mph Moderate Category _____ 111-130 mph Extensive Category _____ 131-155 mph Extreme Category______156+ mph Catastrophic
__________________________ (2005) was the strongest Atlantic hurricane. Typhoon Nancy (1961) had maximum sustained winds (two minute average) of 213 mph. Had a diameter of almost _____________________ miles. Hurricane Katrina (2005) Costliest hurricane in U.S. history ____________________ in damage). Fifth deadliest hurricane (1,836 deaths) Crossed Florida as a Category 1 but gained strength in the Gulf of Mexico. Made landfall in Louisiana and Mississippi on August 29 as __________________________ Directory: cms -> lib -> MS01910580 -> Centricity -> Domain lib -> 1. naclo 2015 – North American Computational Linguistics Olympiad lib -> 1. naclo 2017 – North American Computational Linguistics Olympiad lib -> Chem I honors Unit 2 Notes: Numbers in Chemistry Measurement lib -> Sanderson High School ap human Geography Summer Assignment 2016 lib -> Find fantastic ousd elementary music programs lib -> American Studies Pacing Calendar 2014-2015 lib -> The ap history Timeline 8000bce-the Present lib -> Absolutism in Europe Domain -> Social Studies Name Download 0.49 Mb. Share with your friends:
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