In which of the following conditions can a persistence forecast be quite accurate?
A)when upper-level winds blow straight from west to east
B)when a frontal system approaches your location at constant speed
C)when the weather has been unusually cold for several days
D)when you are positioned in the middle of a large, stationary air mass

The following questions refer to the above illustration of a middle-latitude cyclone.The dashed lines show the positions of the fronts six hours ago.

Question

In which of the following conditions can a persistence forecast be quite accurate?
A)when upper-level winds blow straight from west to east
B)when a frontal system approaches your location at constant speed
C)when the weather has been unusually cold for several days
D)when you are positioned in the middle of a large, stationary air mass
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The following questions refer to the above illustration of a middle-latitude cyclone.The dashed lines show the positions of the fronts six hours ago.

Quizplus · Accepted Answer

Persistence forecasts assume that future weather conditions will be similar to current conditions. They are most accurate in stable situations, such as when you are in the middle of a large, stationary air mass, because the weather is not expected to change significantly in the short term.

In Which of the Following Conditions Can a Persistence Forecast