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Block 1 AA > Disseminate Weather Information > Flashcards

Disseminate Weather Information Flashcards

1
Q

What does HWAS stand for?

A

Hazardous Inflight Weather Advisory Service

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2
Q

Controllers must advise pilots of hazardous weather that may impact operations within:

A

150 NM of their sector

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3
Q

Controllers within commissioned HIWAS areas must:

A

Broadcast a HIWAS alert on all frequencies, except emergency frequency, upon receipt of hazardous weather info

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4
Q

What is the phraseology for broadcasting a HIWAS alert:

A

ATTENTION ALL AIRCRAFT, HAZARDOUS WEATHER INFORMATION

(SIGMET, Convective SIGMET, AIRMET, Urgent Pilot Weather Report (UUA), or Center Weather Advisory (CWA), Number or Numbers)

FOR (geographical area) AVAILABLE ON HIWAS OR FLIGHT SERVICE FREQUENCIES.

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5
Q

Controllers outside of commissioned HIWAS areas must

A
  1. Advise pilots of the availability of hazardous weather advisories
  2. Apply the same procedure when HIWAS outlets, or outlets with radio coverage extending into your airspace are out of service.
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6
Q

What is the phraseology for HIWAS outside of the airspace?

A

ATTENTION ALL AIRCRAFT, HAZARDOUS WEATHER INFORMATION FOR (geographical area) AVAILABLE FROM FLIGHT SERVICE

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7
Q

Terminal facilities have the option to limit hazardous weather information broadcasts:

A

Tower and approach facilities may opt to broadcast haz weather information alerts only when any part of the area described is within 50 NM of the airspace under their jurisdiction.

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8
Q

What are PIREPable conditions?

A
  1. Ceilings at or below 5,000’ (must include cloud base/top reports
  2. Visibility (surface or aloft) at or less than 5 miles
  3. Thunderstorms and related phenomena
  4. Turbulence of moderate degree or greater
  5. Icing of light degree or greater
  6. Wind shear
  7. Volcanic ash clouds
  8. Sulfur gases
  9. Braking action advisories in effect
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9
Q

What do you record with PIREPs

A
  1. Time
  2. Aircraft position
  3. Type Aircraft
  4. Altitude
  5. When the PIREP involves icing include:
    > Icing type and intensity
    > Air temperature in which icing is occuring
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10
Q

Who do you obtain PIREPs from

A

Directly from the pilot, or if the PIREP has been requested by another facility, you may instruct the pilot to deliver it directly to that facility

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11
Q

Issue pertinent information on observed/reported weather and chaff areas by defining the area of coverage in terms of

A

Azimuth (by referring to the 12-hour clock) and distant from the aircraft or by indicating the general width of the area and the area of coverage in terms of fixes or distance and direction from fixes

WEATHER/CHAFF AREA BETWEEN (#) O’CLOCK AND (#) O’CLOCK (#) MILES

(#) MILE BAND OF WEATHER/CHAFF FROM (fix and # of miles and direction from fix) TO (fix or # of miles and direction from fix).

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12
Q

What term do you use when describing radar-derived weather?

A

Precipitation

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13
Q

What terms are used to describe precipitation intensity?

A
  1. LIGHT
  2. MODERATE
  3. HEAVY
  4. EXTREME
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14
Q

What is the phraseology for precipitation?

A

AREA OF (intensity) PRECIPITATION BETWEEN (#) O’CLOCK AND (#) O’CLOCK (#) MILES MOVING (direction) AT (#) KNOTS, TOPS (altitude). AREA IS (#) MILES IN DIAMETER.

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15
Q

What is the lowest displayable precipitation intensity described as?

A

MODERATE

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16
Q

Describe the highest displayable precipitation intensity as:

A

HEAVY to EXTREME

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17
Q

When operational/equipment limitations exist, controllers must ensure that the:

A

Highest available level of precipitation intensity within their area of jurisdiction is displayed.

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18
Q

When requested by the pilot, provide what in regards to weather:

A

Radar navigational guidance and/or approve deviations around weather or chaff areas.

In areas of significant weather, plan ahead and be prepared to suggest, upon pilot request, the use of alternative routes/altitudes.

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19
Q

An approval for lateral deviation authorizes:

A

The pilot to maneuver left or right within the limits of the lateral deviation area.

20
Q

When approving a weather deviation for an aircraft that had previously been issued a crossing altitude, including climb via or descend via clearances:

A

Issue an altitude to maintain along with the clearance to deviate.

If you intend on clearing the aircraft to resume the procedure, advise the pilot

DEVIATION (restrictions if necessary) APPROVED, MAINTAIN (altitude), (if applicable) EXCEPT TO RESUME (SID, STAR, etc.) AT (NAVAID, fix, waypoint)

21
Q

If a pilot enters your area of jurisdiction already deviating for weather:

A

Advise the pilot of any additional pertinent weather which may affect his route.

22
Q

If traffic and airspace permit, combine the approval for:

A

Weather deviation with a clearance on course

DEVIATION (restriction if necessary) APPROVED, WHEN ABLE, PROCEED DIRECT (degrees), VECTOR TO JOIN (airway) AND ADVISE.

23
Q

If traffic or airspace prevent you from clearing the aircraft on course at the time of the approval for a weather deviation:

A

Instruct the pilot to advise when clear of weather

DEVIATION (restrictions if necessary) APPROVED, ADVISE CLEAR OF WEATHER

24
Q

When a deviation cannot be approved as requested because of traffic:

A

Take an alternate course of action that provides positive control for traffic resolution and satisfies the pilot’s need to avoid weather.

UNABLE DEVIATION, FLY HEADING (heading), ADVISE CLEAR OF WEATHER

OR

UNABLE DEVIATION, TURN (# of degrees) DEGREES (left or right) FOR TRAFFIC, ADVISE CLEAR OF WEATHER

25
Q

When forwarding weather deviation information, the transferring controller must clearly coordinate:

A

The nature of the route guidance service being provided.

This should include:
>assigned headings
>suggested headings
>pilot-intimated deviations

26
Q

What is considered calm wind conditions?

A

when the wind velocity is LESS THAN 3 knots

27
Q

General weather info such as “large breaks in the overcast,” “visibility lowering to the south,” or similar statements which do not include specific values, and any elements derived directly from instruments, pilots, or radar may be transmitted to:

A

Pilots or other ATC facilities without consulting the weather reporting station.

28
Q

Specific values, such as ceiling and visibility may be transmitted if obtained by one of the following means:

A
  1. You are properly certificates and acting as official weather observer for the elements being reported
  2. You have obtained the info from the official observer for the elements being reported
  3. The weather report was composed or verified by the weather station
  4. the info is obtained from an official AWOS or ASOS.
29
Q

What does AWOS stand for?

A

Automated Weather Observation System

30
Q

What does ASOS stand for?

A

Automated Surface Observation System

31
Q

When wind displays are unavailable, issue wind information contained in the

A

Latest weather sequence, prefaced with the term “wind estimated”

32
Q

What is wind gust defined as:

A

A 10-minute peak wind speed only when that peak exceeds the wind speed lull by 10 knots or more.

33
Q

What is variable wind defined as?

A

A wind direction change of 60 degrees or more in the preceding 2 minutes, when the wind speed is greater than 6 knots.

34
Q

What is gust spread?

A

The difference between wind speed lull and wind speed peak during the preceding 10 minutes.

35
Q

Current observations and pertinent sever weather warnings, advisories, and pilot reports must be available at:

A

All controller positions.

36
Q

Controllers shall only issue/use the altimeter setting contained in the:

A

Official weather observation

37
Q

At the beginning of every shift, check the accuracy of the:

A

Digitized weather display

38
Q

What STARS precipitation level is ‘light intensity’

A

1

39
Q

What STARS precipitation level is moderate intensity?

A

2

40
Q

What STARS precipitation level is ‘heavy intensity’?

A

3 and 4

41
Q

What STARS precipitation level is extreme intensity?

A

Levels 5 and 6

42
Q

RAPCON will immediately pass all tornado/funnel cloud sightings received from airborne aircraft to:

A

> Red River Tower
Base Weather
Grand Forks Tower
Grand Forks Flight Service Station

43
Q

What information should be included while passing information about tornados?

A

The location and general direction of movement.

44
Q

What does JET stand for?

A

Joint Environmental Toolkit

45
Q

What is the JET?

A

Provides weather support and is displayed on the AFAS system.

46
Q

What do you do if the JET equipment fails?

A

Notify base weather and automation peronnel

Block 1 AA (48 decks)

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