Page 88 - AFMAN 15-111, 12 MAR 2019
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84                                                                          AFMAN15-111  12 MARCH 2019









                                                Criteria                                             Pertinent data                                   Manual   Automated   Supplement   Back-up

                                         Number
                                             Reference

                                                (3)  Ice pellets begin, end, or change

                                                intensity.
                                                                                                                                                   X      X      O       X
                                                (4)  Any other type of precipitation begins
                                                or ends (N/A for ASOS).

                                        9       Tornado, Funnel Cloud, or Waterspout                                                               X      M      X       X

                                                (1)  Is observed.


                                                (2)  Disappears from sight or ends.
                                        10      Runway Visual Range (RVR)                            The highest value during the                         X
                                                                                                     preceding 10 minutes from the

                                                (1)  RVR for the active runway decreases  designated RVR runway decreases
                                                to less than or, if below, increases to equal to less than, or if below, increases to
                                                or exceed:                                           equal or exceed.

                                                (a)  6000 feet (P1500 m for FBWOS                    Note: The RVR SPECI

                                                sensors, 1830 m for ASOS sensors)                    observations is taken, but only
                                                                                                     transmitted longline at locations
                                                (b)  5000 feet (1500 m for FBWOS                     with a 10-minute RVR average
                                                sensors, 1520 m for ASOS sensors)                    readout capability.


                                                (c)  4000 feet (1300 m), touch and go
                                                landing mins in 11 Series AFIs for
                                                mutiple platforms.
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