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IS-324.A: Community Hurricane Preparedness

1. Which product tells when tropical storm-force winds (greater than 39 mph) can be expected to subside? A. Surface wind field

B. Track forecast cone

C. Wind speed probability forecasts

D. Hurricane local statements

2. What is significant about the right-front quadrant of a hurricane? A. Storm surge is enhanced in that quadrant

B. That quadrant appears on Doppler radar

C. Fewer tornadoes occur in that quadrant

D. That quadrant has more rainbands

3. Once a hurricane or tropical cyclone moves over land, the threat from flooding and tornadoes can continue for days. A. True

B. False

4. What does the track forecast cone signify? A. Only citizens within this cone should be concerned with hurricane-force wind speeds

B. The maximum error in NHC's tropical cyclone forecasts in the last five years

C. Track forecast uncertainty

D. The tropical cyclone's eye will broaden to the size of the cone within 48 hours

5. Which agency disseminates coastal watches and warnings for tropical storms and hurricanes? A. The Weather Channel

B. Local NWS Weather Forecast Offices

C. National Hurricane Center

D. Tropical Analysis and Forecast Branch

6. What tool is used to assess how high storm surge might be? A. Saffir-Simpson scale

B. HURREVAC

C. SLOSH

D. HURRTRACK

7. A tropical storm watch means tropical storm-force winds are: A. Expected within 36 hours

B. Expected within 48 hours

C. Possible within 36 hours

D. Possible within 48 hours

8. If a hurricane is on course for your community, and it suddenly intensifies and gains forward speed, what are the results? A. Decision arc shrinks

B. Decision arc expands

C. Fewer people must be evacuated

D. More time to complete evacuations

9. Which quadrant of a hurricane typically has the strongest winds? A. Left-front

B. Right-front

C. Left-rear

D. Right-rear

10. The expected inundation from storm surge is the main consideration in determining what coastal areas should be evacuated. A. True

B. False

11. HURREVAC is used to A. Help make decisions about who should evacuate and when

B. Predict where and when a hurricane will make landfall

C. Collect community characteristics data used in Hurricane Evacuation Studies

D. Apply for a federal disaster declaration

12. Who coordinates information requests between emergency managers and the National Hurricane Center? A. The Weather Channel

B. Hurricane Liaison Team

C. Hurricane Specialists Unit

D. Tropical Analysis and Forecast Branch

13. A hurricane warning means hurricane-force winds are generally: A. Expected within 36 hours

B. Expected within 48 hours

C. Possible within 36 hours

D. Possible within 48 hours

14. The tropical storm-force winds of a Category 3 hurricane are forecast to intersect the decision arc for your community in 36 hours. For a hurricane of Category 4 intensity, it is estimated that your community will need 20 hours to evacuate to safety. How much time is there before the evacuation should be started? A. 16 hours

B. 20 hours

C. 36 hours

D. 56 hours

15. Hurricane watch and warning areas usually are larger than the expected damage swath to account for possible changes in track and intensity and possible forecast errors. A. True

B. False

16. A steep continental shelf offshore of a coastal community will likely result in worse storm surge impacts than if the shelf were shallow. A. True

B. False

17. How far out from a hurricane's center would you generally expect to find tropical storm-force winds? A. 50 miles

B. 150 miles

C. 500 miles

D. 600 miles

18. In order to assure there is enough time to evacuate a community, the evacuation should start when: A. Tropical storm-force winds are 36 hours from your location

B. The hurricane is predicted to intensify

C. Hurricane-force winds are 48 hours from your location

D. The tropical storm-force winds intersect the HURREVAC decision arc

19. What hazard associated with a hurricane generally causes the most deaths in inland areas? A. Tornadoes

B. High winds

C. Storm surge

D. Heavy rain

20. If you wanted to get a sense of the forecaster's confidence in the models, which product would you read? A. Tropical cyclone forecast discussions

B. Tropical cyclone public advisories

C. Local NWS forecasts

D. Hurricane local statements

21. Of the following, which is the advantage of geostationary satellite imagery? A. It can accurately predict forward speed

B. It can be used to monitor the hurricane both almost continuously

C. It can accurately predict the intensity and movement of the storm

D. It can be used to estimate storm surge

22. Hurricane evacuation zones are primarily designed to move people out of areas vulnerable to: A. High winds

B. Storm surge

C. Hazardous chemicals and ruptured gas lines

D. Traffic jams

23. The eye of a Category 2 hurricane is 450 nautical miles away and forecast to come ashore at your coastal location. The tropical storm-force winds extend 150 nautical miles. If the hurricane's forward speed is 20 knots, how long before tropical storm-force winds begin to affect your community? A. 10 hours

B. 15 hours

C. 20 hours

D. 30 hours

24. You explain to an official that a hurricane's forward speed and path can change considerably. She asks why and you respond: A. Different ocean surface temperatures change a hurricane's speed and path

B. Hurricanes are steered by other changing weather features around the storm

C. Hurricanes tend to slow down and change direction at night

D. Speed and path change as the hurricane moves through various origination zones

25. Winds circulate around a tropical storm or hurricane in which direction in the Northern Hemisphere? A. Counter-clockwise

B. Clockwise

26. Which statement about the official NHC track and intensity forecasts is correct? A. Errors in forecasting hurricane intensity have improved faster than errors in forecasting tracks

B. Errors in forecasting track and intensity are generally greater for forecast times farther in the future

C. The track errors for the 24 hour forecast are about the same as the errors for the 120 hr forecast

D. The intensity errors for the 24 hour forecast are about the same as the errors for the 120 hr forecast

27. When should you be most alert for hurricanes? A. July 1 - September 1

B. June 1 - September 30

C. May 1 - October 31

D. June 1 - November 30

28. What does the Saffir-Simpson scale describe? A. Number of tornadoes expected with different wind speed ranges

B. Potential surge heights expected with different categories of storm intensity

C. Potential damage expected from different storm surge levels

D. Potential damage expected with different wind speed ranges

29. What is storm tide? A. The storm surge + astronomical tide

B. The astronomical tide level occurring when the storm makes landfall

C. The storm surge + astronomical tide + waves

D. The storm surge + astronomical tide + wind surge

30. The bigger the hurricane, the more intense it is. A. True

B. False

31. At 0900Z on the 24th, a tropical cyclone forecast/advisory contains the following information:


FORECAST VALID 24/1800Z 21.9N 78.1W

MAX WIND 90 KT...GUSTS 110 KT.

64 KT... 30NE 0SE 0SW 0NW

50 KT...100NE 100SE 30SW 30NW

34 KT...135NE 125SE 75SW 125NW


What does this information tell you? A. The past intensity of the hurricane at various times

B. The current and forecast wind speed until 18Z

C. The predicted speed of the hurricane at 18Z

D. The maximum radial extent of the wind fields at 18Z

32. Which is NOT a source of forecast error in NWP? A. Not enough observations

B. Incomplete understanding of atmospheric physics

C. Lack of radar data off the coast

D. Observation inaccuracies

33. Within a few hours of making landfall, high winds from a hurricane or tropical storm are no longer dangerous. A. True

B. False

34. What is a critical source of information about community resources, behavior, and hazards that go into the hurricane sections of a community's Emergency Operations Plan? A. National Hurricane Center

B. HURREVAC

C. Hurricane Evacuation Study

D. National Weather Service

35. As a hurricane or tropical storm approaches your location, its forward speed decreases from 20 kt to 10 kt. How might that affect rainfall? A. Less total rainfall from a weakening system

B. Less flooding because rain will have more time to soak into the ground

C. More total rainfall from a slower moving storm

D. Shorter period under the rainbands

36. When should you aim to have an evacuation be completed? A. After the arrival of tropical storm-force winds but before hurricane-force winds

B. When the tropical storm-force winds intersect the HURREVAC decision arc.

C. By the time tropical storm-force winds arrive

D. Before the arrival of hurricane-force winds

37. To get more detailed information about the current and predicted effects of the hurricane for your local area, you should? A. Talk with the Hurricane Liaison Team at the National Hurricane Center

B. Read the latest tropical cyclone public advisory

C. Read the latest hurricane local statement

D. Read the latest tropical cyclone forecast discussions

38. Errors in forecasting the forward speed of the hurricane can affect: A. The time available before onset of tropical storm-force winds

B. The expected category of hurricane intensity

C. The radius of the tropical storm-force winds

D. The size of the rainbands

39. The eye of a Category 2 hurricane is 450 nautical miles away and forecast to come ashore at your coastal location. The tropical storm-force winds extend 150 nautical miles. The hurricane is moving at 15 knots. If it maintains forward speed, how long before tropical storm-force winds begin to affect your community? A. 10 hours

B. 20 hours

C. 24 hours

D. 30 hours

40. The storm surge atlas provides information on: A. A map of the evacuation zones

B. The worst-case storm surge associated with a Category 5 hurricane

C. The average extent of storm surge flooding from any category hurricane

D. The maximum storm surge flooding expected from any category hurricane

41. As long as your community is outside the track forecast cone, it is safe from hazards associated with a hurricane or tropical storm. A. True

B. False

42. A Hurricane Evacuation Study collects data on community characteristics, vulnerabilities, transportation, and hazards A. True

B. False

43. Why is the United States becoming more vulnerable to hurricanes? A. Hurricanes are becoming larger and more frequent.

B. More hurricanes are traveling farther inland

C. Our ability to forecast has been declining

D. Increasing population in coastal areas make it more difficult to evacuate for a hurricane

44. The eye of a Category 2 hurricane is 450 nautical miles away and forecast to come ashore at your coastal location. The tropical storm-force winds extend 150 nautical miles. The hurricane is moving at 15 knots. Assuming it takes 18 hours to evacuate your jurisdiction, when is the best time to call for an evacuation? A. Now

B. 4 hours

C. 5 hours

D. 15 hours

45. If HURREVAC indicates that your community has a 15% probability of having hurricane winds when landfall is expected 72 hours from now, you can be reasonably confident that you will probably only have tropical storm-force winds. A. False, because the probabilities may increase as the storm comes closer

B. True, because the chances are well below 50% that the community will have hurricane-force winds

46. The area of the track forecast cone is drawn so that the actual position of the storm will be within the cone approximately? A. 10-25% of the time

B. 30-40% of the time

C. 60-70% of the time

D. 80-90% of the time

47. What is the main instrument for taking measurements of a tropical cyclone far out at sea? A. Radar

B. ASOS

C. Satellite

D. Ship reports

48. Which agency disseminates warnings for inland tropical storm or hurricane force winds? A. Local NWS Weather Forecast Offices

B. The Weather Channel

C. National Hurricane Center

D. Tropical Analysis and Forecast Branch

49. If you wanted to determine where you were in relation to the current wind fields, which product would you look at? A. Tropical cyclone forecast discussions

B. Special tropical cyclone public advisories

C. Wind speed probability forecasts

D. Surface wind field

50. A typical hurricane can bring:

A. Trace of rain
B. 1-3 inches of rain
C. 3-6 inches of rain
D. More than 6 inches of rain


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