Figure 15: Terminal aerodrome forecasts (TAF)

6 FAA questions that refer to this figure

1. Question 1 · Private Pilot

   (Refer to figure 15.) In the TAF from KOKC, the clear sky becomes

   • A.overcast at 2,000 feet during the forecast period between 2200Z and 2400Z.
   • B.overcast at 200 feet with a 40 percent probability of becoming overcast at 600 feet during the forecast period between 2200Z and 2400Z.
   • C.overcast at 200 feet with the probability of becoming overcast at 400 feet during the forecast period between 2200Z and 2400Z.
   Show answer and explanation

   Correct: A. overcast at 2,000 feet during the forecast period between 2200Z and 2400Z.

   In the KOKC TAF, FM051600 gives P6SM SKC, then BECMG 0522/0524 20013G20KT 4SM SHRA OVC020: between 2200Z and 2400Z the clear sky becomes overcast at 2,000 feet. OVC020 is 2,000 feet (hundreds of feet), not 200 feet.

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2. Question 2 · Private Pilot

   (Refer to figure 15.) During the time period from 0600Z to 0800Z, what visibility is forecast for KOKC?

   • A.Greater than 6 statute miles.
   • B.Possibly 6 statute miles.
   • C.Not forecasted.
   Show answer and explanation

   Correct: A. Greater than 6 statute miles.

   For KOKC, BECMG 0606/0608 21015KT P6SM SCT040 forecasts visibility greater than 6 statute miles (P6SM) during the 0600Z-0800Z change period; the earlier PROB40 group ended at 0600Z.

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3. Question 3 · Private Pilot

   (Refer to figure 15.) The only cloud type forecast in TAF reports is

   • A.Nimbostratus.
   • B.Cumulonimbus.
   • C.Scattered cumulus.
   Show answer and explanation

   Correct: B. Cumulonimbus.

   TAFs forecast cloud amount and height, and cumulonimbus (CB) is the only cloud type ever included, as in OVC008CB in the Figure 15 KMEM and KOKC forecasts. Nimbostratus or cumulus types are not coded in TAFs.

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4. Question 4 · Private Pilot

   (Refer to figure 15.) Between 1000Z and 1200Z the visibility at KMEM is forecast to be?

   • A.1/2 statute mile.
   • B.3 statute miles.
   • C.6 statute miles.
   Show answer and explanation

   Correct: B. 3 statute miles.

   In the KMEM TAF, BECMG 1310/1312 00000KT 3SM BR SKC forecasts that between 1000Z and 1200Z on the 13th conditions become calm with 3 statute miles in mist and clear skies. The 1/2 mile in fog is the TEMPO 1212/1214 group, which starts at 1200Z.

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5. Question 5 · Private Pilot

   (Refer to figure 15.) What is the forecast wind for KMEM from 1600Z until the end of the forecast?

   • A.No significant wind.
   • B.Variable in direction at 6 knots.
   • C.Variable in direction at 4 knots.
   Show answer and explanation

   Correct: B. Variable in direction at 6 knots.

   The last KMEM group, FM131600 VRB06KT P6SM SKC, forecasts from 1600Z to the end of the TAF a variable wind at 6 knots, with more than 6 miles visibility and clear skies.

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6. Question 6 · Private Pilot

   (Refer to figure 15.) In the TAF from KOKC, the 'FM (FROM) Group' is forecast for the hours from 1600Z to 2200Z with the wind from

   • A.180° at 10 knots.
   • B.160° at 10 knots.
   • C.180° at 10 knots, becoming 200° at 13 knots.
   Show answer and explanation

   Correct: A. 180° at 10 knots.

   The KOKC group FM051600 18010KT forecasts wind from 180 degrees at 10 knots from 1600Z; the change to 200 degrees at 13 knots gusting 20 is a separate BECMG group from 2200Z to 2400Z, after the period asked about.

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