# Meteorology Acitivity

Description

The Activity Page can be found here: Module 8 Activities NEW.pdf. Please answer the questions in this activity in a Word document (.doc or .docx), or a .pdf document, and upload it below. Remember to include your diagram for Activity 1 Question 2. Each question is worth 1 point.

Meteorology 10
Module 8 Activities
webpage on Canvas. You may also type your answers on this document if you’d like.

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Meteorology 10
Module 8 Activities
webpage on Canvas. You may also type your answers on this document if you’d like.
The wind speeds in a tornado are greatly affected by the direction that the tornado is traveling in:
Where the winds are blowing in the same direction that the tornado is traveling in, you
ADD the two up to calculate the wind speed.
Where the winds are blowing in the opposite direction that the tornado is traveling in, you
SUBTRACT the two from each other to calculate the wind speed.
Where the winds are neither blowing in the same or opposite direction that the tornado is
traveling in, you don’t need to do anything.
Example: Consider the tornado below: The winds in the tornado are rotating counterclockwise at a speed of 100 mph and the tornado is traveling to the East at 20 mph. Where
and how strong, are the winds the Strongest, and where and how strong are the winds the
Weakest?
To Answer this question, let’s draw a diagram, showing a circle of rotation (with the wind speed
in the middle), and an arrow pointing towards the direction that the tornado is traveling in (I also
drew an arrow pointing North to indicate that North is on the top of the diagram):
Based on our diagram, the BOTTOM (Southern side) of the Tornado is blowing in the same
direction as the tornado is traveling in (note that both arrows are pointing in the same direction).
So adding them: 100mph + 20mph = 120mph,
On the other hand, the TOP (Northern side) of the Tornado is blowing in the opposite direction
as the tornado. So you subtract them: 100mph – 20mph = 80mph. By the way, if you choose to
subtract 100 from 20, you get -80, which just indicates that the wind is blowing in the opposite
direction that the tornado is traveling in… a -80mph wind is just an 80mph wind blowing in the
same direction.
Meanwhile, The Left (Western end) and Right (Eastern end) of the tornado have winds blowing
perpendicular to the direction that the tornado is traveling. In this case, you neither add nor
subtract the direction of travel from the wind speed. The wind speed here is simply 100mph.
Activity Questions: Fill in the blanks to the questions below.
1. Consider the tornado diagram below: A tornado with winds rotating counterclockwise at
150mph, traveling to the Northeast at 45mph (I added more arrows to the circulation just
to help make it easier to identify where the strongest/weakest winds are):
a. The Strongest Winds are located on the __________________ side of the
a. Northwestern
b. Southwester n
c. Southeastern
d. Northeastern
b. The Weakest Winds are located on the __________________ side of the
a. Northwestern
b. Southwester n
d. Southeastern
d. Northeastern
c. The Strongest Winds are _____________________ mph
d. The Weakest Winds are _____________________mph
e. The ___________________ and _______________________ sides are not
affected by the forward motion (movement) of the tornado:
a. Northwestern
b. Southwester n
e. Southeastern
d. Northeastern
2. Consider the following tornado: A tornado with winds rotating clockwise at 200mph,
traveling North at 32 mph.
a. Draw a diagram setting up the problem like the ones above. For consistency, make
North the top of the diagram (like the ones above):
b. Circle the side of the tornado with the strongest winds, and label it with the wind
speed.
c. Circle the side of the tornado with the weakest winds, and label it with the wind
speed.
Barometric Pressure (mb)
Air Temperature (°F)
Cloud Cover
71
125
Direction wind is coming from
Precipitation
69
Dew Point Temperature (°F)
Wind Speed

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