.
severe icing as “ICE SEV”
.
severe mountainwave as “MTW SEV”
.
thunderstorm without hail as “TS”
.
thunderstorm with hail as “TSGR”
.
heavy duststorm or sandstorm as “HVY SS”
.
volcanic ash cloud as “VA CLD”
.
pre-eruption volcanic activity or a volcanic eruption as “VA”
.
moderate turbulence as “TURB MOD”
.
hail as “GR”
.
cumulonimbus clouds as “CB”.
— TIME TRANSMITTED. Record only when Section 3 is transmitted.
No. 1
Appendix 1 A1-5
2. Special air-report of volcanic activity form (Model VAR) MODEL VAR: to be used for post-flight reporting
Operator: Aircraft identification (as per item 7 of flight plan): Pilot-in-command: Dep. from . . . . . . . . . . . . . . . Date . . . . . . . . . . . . . . . . . . . . Time . . . . . . . . . . . . . . . . . . . UTC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Arr. at . . . . . . . . . . . . . . . . . . Date . . . . . . . . . . . . . . . . . . . . Time . . . . . . . . . . . . . . . . . . . UTC
Addressee
AIREP SPECIAL
Section 1 1 Aircraft identification
2 Position
3 Time
4 Flight level or altitude
5 VOLCANIC ACTIVITY OBSERVED AT (position or bearing and distance from aircraft)
6 Air temperature
7 Spot wind
8 Supplementary information (Brief description of activity including vertical and lateral extent of ash cloud, horizontal movement, rate of growth, etc. as available)
Section 2 The following information is not for transmission by RTF
9 Density of ash cloud 10 Colour of ash cloud 11 Eruption 12 Position of activity 13 Other observed features of eruption 14 Effect on aircraft 15 Other effects 16 Other information TICK (a) wispy . (b) (a) white . (b) (d) black . (a) continuous . (b) (a) summit . (b) (d) multiple . (e) (a) lightning (d) ash fall out . . (b) (e) (a) communications . (b) (d) pitot static . (e) (g) nil . (a) turbulence . (b) (d) ash deposits . (Add any information considered useful.) THE APPROPRIATE BOX moderate dense . light grey . intermittent . side . not observed . glow mushrooming cloud . . nav. systems . windscreen . St. Elmos Fire . . (c) (c) (c) (c) (c) (f) (c) (f) (c) very dense dark grey not visible single large rocks nil engines windows fumes . . . . . . . . .
3. Examples
AS SPOKEN IN RADIOTELEPHONY AS RECORDED BY THE AIR TRAFFIC
SERVICES UNIT AND FORWARDED TO THE
METEOROLOGICAL OFFICE CONCERNED
I.-1 AIREP SPEEDBIRD FIFE SIX AIT POSITION FOWer NINer TOO FIFE NORTH ZERO FIFE ZERO WEST AT I.- BAW568 4925N050W 1317 F310 MS47 255/65KT TURB MOD ICE FBL
WUN TREE WUN SEVen FLIGHT LEVEL TREE WUN
ZERO NEXT POSITION FIFE ZERO NORTH ZERO
FOWer ZERO WEST AT WUN TREE FIFE FIFE
FOLLOWING POINT FIFE ZERO NORTH ZERO TREE
ZERO WEST ENDURANCE ZERO AIT TREE ZERO
TEMPERATURE MINUS FOWer SEVen WIND TOO
FIFE FIFE DEGREES SIX FIFE KNOTS TURBULENCE
MODERATE ICING LIGHT
II.-2 JAPANAIR FOWer FOWer WUN OVER ORDON AT ZERO NINer TREE ZERO FLIGHT LEVEL TREE FIFE II.- JAL441 ORDON 0930 F350 MS53 310/60KMH TURB FBL ICE FBL
ZERO NEXT POSITION ONADE AT WUN ZERO
ZERO SEVen FOLLOWING POINT OMPPA
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