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Forming of weather, extreme weather

amy hanna

on 1 March 2018

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Transcript of Weather

Lawrence Microburst
Predicting Weather
Describe what you would find or see along A
Bellwork: Venn diagram.
Come up with as many as you can.
Tornadoes Hurricanes
Lapse Rate- decrease in temperature as you increase in altitude in the troposphere.

Average atmospheric lapse rate is a temperature decrease of 3.5°F 1,000 feet of altitude.
Rain Shadow- The warm moist air is pushed up over a mountain. It condenses as it rises and precipitates. Then the cold dry air sinks down the mountain leaving a rain shadow (dry, windy, desert like region, behind the mountain).
If the current temperature is 56 F and the Dew point is 50 F how low are the clouds forming today?
Name the cloud

1. High layered clouds
2. Low fluffy white clouds
3. Middle layered clouds
Knowing what you know about density, temperature and humidity...describe what would happen if a cold front meet with a warm front. what would the clouds look like and why?
Using your supplies listed... whatever group can make a cloud and make it rain first wins.

Hot plate
1 piece of foil
1 glass jar

High level puffy white cloud?
Lowest level stratus cloud?
Cloud producing long periods of rain?
Cloud producing thunderstorms?
1. Middle level layered cloud ___________________
2. Rain clouds with long periods of rain ______________
3. High level puffy clouds _______________
4. Clouds made of ice crystals ________________________
5. If the temp is 60 degrees and the dew point is 60 degrees, what type of clouds will you have?
6. Rain that freezes when it hits a cold surface_________
7. Frozen water vapor ________________
8. The type of airmass we get from Canada _________________
9. Air masses are carried along the tracks of the __________
10. The front that is quick and causes heavy rain and thunderstorms______________________
5 minute write- (write the whole time)

Tell me about your experiences with tornadoes living in Kansas.

Formation of a Hurricane
1. Begins as thunderstorm over tropical oceans.
2. Winds traveling in two different directions collide causing the spiral spinning motion.
3. Moisture is added to the warm air by evaporation.
4. Gets energy from condensation of water.
5. Dies when it reaches colder water or land.

Must have winds of 74 miles per hour, otherwise its a tropical storm or a lesser tropical depression.
Formation of a Hurricane


°C x 9/5 + 32 = °F

(°F - 32) x 5/9 = °C

Glue in both sheet
Draw a landscape picture of six different clouds and label them.

Take out your homework- yes you had homework.

Have out a grading pencil on your desk.
The Jet Stream
Is a fast flowing, relatively narrow air currents found between the troposphere and the stratosphere.

It is the connection between air masses with significant differences in temperature, such as the cold air from the polar region and the warmer air from the south.
Form along cold fronts
Whats the difference between sleet, hail and snow?
5 minute write! (write for the entire time)

If your forecast had to have one of the following... sleet, snow or hail, which one would you choose and why? Why wouldn't you want the other ones?
What weather would you find in Idaho?
What weather would you find in Arkansas?
Explain both.
Draw in the jet stream where might you find storms?
Draw in the jet stream where might you find storms?
Enhanced Fujita Scale- EF1- EF5 (5 being the worst). Measures tornadoes intensity with damage. It used to be based solely on wind speed, but now takes into account the how structures are build and the damages caused.
Stratus clouds to nimbostratus
Cirrus at the ending
Have out your video notes ready to grade.
Formation of Tornado
1. Cumulonimbus cloud associated with cold front
2. Strong cold down drafts, warm up drafts
3. Two air masses begin rotating in the cloud and drop as a wall cloud.
4. Wall cloud becomes funnel and then tornado after touchdown.

Tornado Season- Spring- March- May
Scale of hurricanes from category 1-5, based on winds, air pressure and storm surge (wall of water that comes in with storm)
There are low pressure zones and high pressure zones on Earth. If air rising causes low pressure, where might you find a high and low pressure zone on Earth. (think broad)
Cold, dry air sinks along mountain causing dry wind.
Warm, wet air rising cools and condenses. It causes rain/snow on top of the mountain.

Clear your desk except for you Cornell notes.
Explain how you can see your breath in the winter time using vocab from yesterday.
Storm might come
Cloudy, gloomy
Drizzle, rain, sno
Have out your white boards
What clouds are outside today?
Have out a white board and marker.
1. Sault Ste. Marie, Mich. — 158.7 inches (110.1)
2. Marquette, Mich. — 157 inches (178.2)
3. Bangor, Maine — 131.5 inches (59.3)
4. Caribou, Maine — 129.4 inches (96.2)
5. Syracuse, N.Y. — 118.5 inches (116.3)
6. Worcester, Mass. — 116.8 inches (58.6)
7. Boston, Mass. — 110.3 inches (40.2)
8. Buffalo, N.Y. — 109.3 inches (88.8)
9. Erie, Pa. — 104 inches (94.4)
10. Gray, Maine — 103.7 inches (74.2)
What type of front came through last night. Give two pieces of evidence.
Pick up your quiz from the counter.
Glue in the wksh from the door.
Describe the weather for the next week. Using your knowledge from yesterday.
A lightning rod: is a metal rod on top of an elevated structure connected to a metal wire that is inserted into the ground to protect people and structures.
For every 5 seconds the storm is 1 mile away.

Why would this knowledge be useful?
light travels at 186,000 miles per second
How fast does sound travel?
35 mph winds
1/4 mile visibility
3+ hours or longer
19 degrees or below
Air clashing at a front
Winter time
Northern states

Less severe
Shorter time for snow
Slower falling

Water that cannot be contained in a river/creek channel

Large amounts of rain during storms

Quicker and faster
Longer thunderstorms

Long periods of high rain
Stationary fronts
Ground is too saturated to hold anymore water

What facts do you already know about hurricanes

If they take the Gulf Stream they die off because of the colder water and air.

If they go into the gulf they have warm air and water to become bigger.

Hurricanes occur every year and sometimes two or three hurricanes can be active at the same time. Using names for these storms makes it much easier for meteorologists, researchers, emergency response workers, ship captains and citizens to communicate about specific hurricanes and be clearly understood.

For that reason the World Meteorological Organization develops a list of names that are assigned in alphabetical order to tropical storms as the are discovered in each hurricane season. Names can be repeated after an interval of six years, but the names of especially severe storms are permanently retired from use.

Supercell- large cumulonimbus clouds that have the potential to produce tornadoes
Whats the difference between a
tornado watch and a tornado warning?

Tell me about an experience you have had with severe weather

1. Have out your video notes to grade.
2. Grab a paper towel
Have out your popcorn lab for me to grab your scores.

On your white boards: Would the Equator have high or low pressure systems, why?

Read pages 118-119

*100% humidity
*Dew Point
Trade Winds
Read page 122-123
Have out your cloud pictures/definitions number your pictures

Today switch with someone new and guess their 8 clouds on a piece of scratch paper.

Glue in your quizzes from the counter

Enrollment forms to orange folder on front desk.

1 2 3

4 5 6

7 8 9
On your white boards, number 1-9
1 2 3

4 5 6

Glue in your sheets, glue in the US map... again
Pick up your quiz from the window counter

Question on white board: Where would you expect the jet stream to be in the US during the Winter, Spring and Summer?

Last Day of the Quarter Schedule

7:55-8:15 1st hour - 8th grade Exploratory
8:19-8:41 8th hour - 8th grade Exploratory
8:45-8:55 Report to your 2nd hour- receive schedule
9:00-9:25 Section 1- Career Day
9:30-9:55 Session 2- Career Day
10:00-10:25 Session 3- Career Day
10:30-11:00 Session 4- Career Day
11:05-11:30 Report to your seminar
Bracketology- probability wksh
11:35-12:25 Game 1- seminar
12:27-12:57 Lunch
1:01-2:10 Game 2- seminar
2:15-3:00 Gym/outside game
(August, September, October)
Tell your neighbor about...
1. One unique item that is included on your tornado poster
2. One thing that happened over Spring Break

Trade Winds
1. Glue in Tornado vs. Hurricane
2. Have out a piece of note book paper
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