Figure 1-24. Reportable Visibility Values for TAFs

CHAPTER ONE

METEOROLOGY FLIGHT PLANNING

the same notation as the METAR present weather group, described above in Figure 1-11. A

visibility code of "9999" indicates 7 miles visibility or greater is forecast, i.e. unlimited visibility.

When appropriate, RVRs will follow immediately after the prevailing visibility.

KNSE TAF 260909 28004KT 9000 HZ SCT020 SCT200 QNH2998INS

Figure 1-23 TAF Visibility Group

VISIBILITY CONVERSION TABLE - STATUE MILES TO METERS

Statute Miles

Meters

Statue Miles

Meters

Statute Miles

Meters

3/4

1200

1 7/8

3000

1/16

100

7/8

1400

3200

1/8

200

1600

2 1/4

3600

3/16

300

1 1/8

1800

2 1/2

4000

1/4

400

1 1/4

2000

4800

5/16

500

1 3/8

2200

6000a

3/8

600

1 1/2

2400

8000

1/2

800

1 5/8

2600

9000b

5/8

1000

1 3/4

2800

9999

Notes: a Rounded down from 6400m; b Rounded down from 9600m.

Figure 1-24 Reportable Visibility Values for TAFs

If any significant weather or an obstruction to vision is forecast (rain, snow, sleet, hail, blowing

dust, etc.), it will be included after visibility, using the codes in Figure 1-11. If there is no

significant weather, this group will be omitted.

Sky Condition Group

This group(s) will be included as often as necessary to indicate all forecast cloud layersup to the

first overcast layer (8/8ths)in ascending order of cloud bases, with lowest layer first (Figure 1-

25).

KNSE TAF 260909 28004KT 9000 HZ SCT020 SCT200 QNH2998INS

Figure 1-25 TAF Sky Condition Group

1-20 AVIATION ROUTINE WEATHER REPORTS AND TERMINAL AERODROME

FORECASTS