Page 3 - AFMAN 15-111, 12 MAR 2019

AFMAN15-111 12 MARCH 2019 3

3.10. Rounding of Figures and Values. ........................................................................... 15

3.11. Dissemination. ....................................................................................................... 16

Figure 3.2. Examples of Augmented Longline Dissemination of METARs/SPECIs. .............. 17

3.12. Longline Dissemination by other WFs/Dets. ......................................................... 18
3.13. Reports of a Volcanic Eruption. ............................................................................. 18

Chapter 4— GENERAL OBSERVING INFORMATION 19

4.1. General. .................................................................................................................. 19

4.2. FBWOS. ................................................................................................................. 19

4.3. Automated Dissemination System (ADS). ............................................................ 19

4.4. FBWOS Certification Requirements. ..................................................................... 20
4.5. Position Qualification Requirements. .................................................................... 21

4.6. Station Information File. ........................................................................................ 21

4.7. Accuracy of Time. ................................................................................................. 21

4.8. Alternate Operating Location (AOL). .................................................................... 21

4.9. Cooperative Weather Watch. ................................................................................. 22

4.10. Control Tower Observations ................................................................................... 22
4.11. Observing Aids for Visibility. ................................................................................ 22

Figure 4.1. Example Visibility Checkpoint Photograph. .......................................................... 23

4.12. Aircraft Mishap. ..................................................................................................... 23

4.13. Inactive/Parallel Runway Equipment. ................................................................... 24

Chapter 5— OBSERVATION AUGMENTATION 25
5.1. General. .................................................................................................................. 25

5.2. Supplementing FBWOSs. ...................................................................................... 25

Table 5.1. Mandatory Supplementation Conditions. ............................................................... 26

5.3. Back-up. ................................................................................................................. 26

5.4. Back-up Equipment. .............................................................................................. 26
5.5. False Freezing Precipitation Reports. .................................................................... 27

Chapter 6— OBSERVATION FORM ENTRIES AND DISPOSITION 28

6.1. General. .................................................................................................................. 28