Forecasting the weather

 

  
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Tropical cyclone Rosita - Tracking exercises

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NextRosita radar loop (116K)
NextRosita infrared satellite loop (590K)

 

The following exercises involve observing Rosita's tracking direction and speed of movement.
Answers are listed at the bottom of the page.

In the cyclone track image (below), notice the position of Rosita at 6am and 6pm on the 18th April

a) Use the scale on the map to estimate the distance Rosita travels during this 12 hour period.
Is it :

i) 50 km ii) 100 km iii) 125 km iv) 200 km

 

b) Divide the distance by 12 to get the speed in km/h.
Is it:
i) 4 km/h ii) 8 km/h iii) 10 km/h iv) 16 km/h

 

c) If Rosita had maintained this same speed and direction of movement,
approximately how long would it have taken to reach the coast? (from the 6pm position)
Is it:
i) 6 hrs ii) 24 hrs iii) 36 hrs iv) 48 hrs

 

d) Noting the actual positions on 6am 19 April and 6am 20 April,
calculate the average speed of movement during this 24 hour period
Is it:
i) 5 km/h ii) 10 km/h iii) 15 km/h iv) 20 km/h

Tropical cyclone Rosita - Track

Answers:
a) - iii) 125 km
b) - iii) 10 km/h
c) - iv) 36 hrs
d) - iv) 15 km/h

 

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