Forecasting Lab: Satellite Lab



College of DuPage Meteorology

Analysis and Forecasting

Satellite Lab

For questions 9-20, use the satellite loops and images found at . The questions on this sheet correlate to the questions on that webpage.

Which satellite would be best for viewing the following?

For all questions, assume we are talking about daytime

1) Fair Weather Cumulus

a) Visible b) Infrared c) Water Vapor d) All of the above

2) Fog

a) Visible b) Infrared c) Water Vapor d) a and b

3) Overshooting Tops

a) Visible b) Infrared c) Water Vapor d) b and c

4) General longwave pattern, shortwave troughs, etc.

a) Visible b) Infrared c) Water Vapor d) All of the above

5) Cooling cloud tops on a thunderstorm

a) Visible b) Infrared c) Water Vapor d) All of the above

6) Clear Skies

a) Visible b) Infrared c) Water Vapor d) all of the above

7) Mesoscale/Outflow Boundaries

a) Visible b) Infrared c) Water Vapor d) All of the above

8) MCC’s (Mesoscale Convective Complexes)

a) Visible b) Infrared c) Water Vapor d) All of the above

9) Looking at pic 1 (IR) and pic 2 (vis). Over northeastern Illinois, what type of clouds are we likely looking at?

a) Cirrus

b) Mid-level stratus (above 10,000 feet)

c) Thunderstorms

d) Low level stratus and maybe fog

10) Running the water vapor loop what do you notice about the area near Baja California (Mexico) and extending westward into the Pacific?

a) The air is very moist.

b) The air mass is very dry

c) The air, on the large scale, is sinking (subsidence)

d) a and c

e) b and c

11) Running the next loop, the visible loop you see a boundary moving southward through Texas and Oklahoma. Cloud features continue to form on the north side of this boundary. What is likely forming?

a) Surface based thunderstorms

b) High based thunderstorms

c) Cirrus

d) Elevated (not surface based) thunderstorms

e) Fog and stratus.

12) What is the predominant feature found in this loop?

a) Cold front

b) Warm front

c) Outflow boundary

d) Lake breeze

13) You will see on this loop an area of persistant clouds hugging the coast of California, and in some cases moving onto land. What is the name of this feature,?

a) Coastal Intrusion

b) Pacific Connection

c) Inversion Stratus Belt

d) California Pacific Ocean Fog

e) Marine Layer

14) Running this loop, the middle part of the country goes from a milky white color to a red color. What is this a result of?

a) Moisture advection

b) Daytime heating

c) Warm advection

d) Fog and stratus

e) A and D

15) Running the loop, this spinning low would be best described as

a) Closed and cut off

b) Progressive

c) Tropical

d) an area of calm weather

e) A and D

16) Running the loop you will see an area of nearly stationary cold tops (noted in green) over Alberta Canada. What is this feature, likely?

a) Area of stratus clouds and fog

b) Thunderstorms

c) Cirrus and mid level clouds

d) Shortwave trough

e) Incorrect data

17) Using the same loop as in number 16, what are the upper level winds (jet stream) over Illinois?

a) Northeasterly

b) Northwesterly

c) Southwesterly

d) Southeasterly

e) Cannot be determined by using this type of satellite

18) Running the loop (same loop as for number’s 16 and 17). The low off the coast of California is starting to move eastward (this is evident by the moisture channel to the east of the upper low, marked by the bright whites and blue colors moving from California to Arizona). What is the cause of this?

a) The trough in the Pacific Northwest is acting as a kicker

b) The trough in the Pacific Northwest is acting as a digger

c) The upper low, itself, is digging

d) The east coast trough is weakening

19) Running both the Vis and IR loops, the spot in central MN is an area of thunderstorms. What makes one realize these are likely thunderstorms?

a) Overshooting tops are evident

b) It is stationary

c) It has a hook echo

d) The cloud tops are cooling rapidly

e) a and d

20) Using the IR (enhanced) loop from number 19, one can assume these thunderstorms are strengthening.

a) True

b) False

c) Can’t determine using this type of satellite

21) The cold front is approaching Ohio and Kentucky

a) True

b) False

22) Clouds over the Great Lakes region are “high clouds”

a) True

b) False

23) The system over the eastern US is an occluded system

a) True

b) False

24) Cumulus is forming in the dry intrusion in Florida

a) True

b) False

25) The clouds over the Great Lakes region can be called “backlash clouds” (not backwash, yuck!)

a) True

b) False

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