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TEMP Format (FM-35)

Upper Level temperature, humidity, winds

Table of Contents


Part A (TTAA) - Mandatory Level below 100 mb

TTAA YYGGI IIiii 99PPP TTTDD dddff 00HHH TTTDD dddff
92HHH TTTDD dddff 85HHH TTTDD dddff 70HHH TTTDD dddff 50HHH
TTTDD dddff 40HHH TTTDD dddff 30HHH TTTDD dddff 25HHH TTTDD
dddff 20HHH TTTDD dddff 15HHH TTTDD dddff 10HHH TTTDD dddff
88PPP TTTDD dddff 77PPP dddff ...

Section 1

  • YYGG - The day and hour of observation.
    If YY > 50, the winds are in knts and 50 added to day.
    I - Top level which wind data is included:
      1  100 mb
      2  200 mb
      3  300 mb
      4  400 mb
      5  500 mb
      7  700 mb
      8  850 mb
      9  925 mb
      0 1000 mb
      /  no wind group is included
    

  • IIiii - The WMO number of the reporting station.

Section 2

  • 99PPP TTTDD dddff - Surface level information

    99PPP - The surface pressure (mb) ... if PPP < 100, add 1000
    TTTDD - The temperature and dewpoint depression
    dddff - The wind direction and speed (see below)

  • PPHHH TTTDD dddff - Mandatory level information
    • PP - Pressure (10s of mb):
        00  1000 mb
        92   925 mb
        85   850 mb
        70   700 mb
        50   500 mb
        40   400 mb
        30   300 mb
        25   250 mb
        20   200 mb
        15   150 mb
        10   100 mb
      
    • HHH - Gepotential height (m) HHH Height in meters. (/// for missing)
        Pressure  Code (HHH)  Height         Code(HHH)    Height
        1000 mb   HHH < 500   HHH            HHH >= 500   500-HHH
         925 mb   all HHH     HHH
         850 mb   all HHH     HHH+1000
         700 mb   HHH < 500   HHH+3000       HHH >= 500   HHH+2000
         500 mb   all HHH     HHH*10
         400 mb   all HHH     HHH*10
         300 mb   HHH < 500   HHH*10+10000   HHH >= 500   HHH*10
         250 mb   HHH < 500   HHH*10+10000   HHH >= 500   HHH*10
         200 mb   all HHH     HHH*10+10000
         150 mb   all HHH     HHH*10+10000
         100 mb   all HHH     HHH*10+10000
          70 mb   all HHH     HHH*10+10000
          50 mb   HHH < 500   HHH*10+20000   HHH >= 500   HHH*10+10000
          30 mb   all HHH     HHH*10+20000
          20 mb   all HHH     HHH*10+20000
          10 mb   HHH < 500   HHH*10+30000   HHH >= 500   HHH*10+20000
      
    • TTT - Temperature (.1 C) ... /// if missing
      If the tenths digit is odd,
         the temperature is negative.
      Otherwise,
         the temperature is positive.
      For example:
        234 = 23.4 C 
        123 =-12.3 C
      
    • DD - Dewpoint depression (C) ... // if missing
      If DD is less than or equal to 50,
         then the dewpoint depression is in tenths of a degree C.
      Otherwise,
         the dewpoint depression is in degrees C plus 50.
      For example:
        65 = 15 C
        57 =  7 C
        44 =  4.4 C
        12 =  1.2 C
      
    • ddd - Wind direction (to nearest 5 degrees) ... /// if missing
      If ones digit 1 or 6,  add 100 to wind speed and direction is 0 or 5 repsectively
      If ones digit 2 or 7,  add 200 to wind speed and direction is 0 or 5 repsectively
    • ff - Wind speed (knts) ... // if missing
      If DDD is not an even multiple of 5, the difference between ddd and an even multiple of 5 is then added to the wind speed as the hundredths digit. For example:
        31523 = 315 deg at  23 knts
        25612 = 255 deg at 112 knts
      

Section 3

  • 88PPP TTTDD dddff - Tropopause level information

    88PPP - The tropopause pressure (mb) ... 999 if missing
    TTTDD - The temperature and dewpoint depression
    dddff - The wind direction and speed (see below)

Section 4

  • 77PPP dddff - Maximum wind level information

    77PPP - The maximum wind pressure (mb) ... 999 if missing
    dddff - The wind direction and speed (see below)


Part B (TTBB) - Significant Level below 100 mb

TTBB YYGG0 IIiii 00ppp TTTDD 11ppp TTTDD 22ppp TTTDD 33ppp TTTDD 44ppp TTTDD 55ppp TTTDD 66ppp TTTDD 77ppp TTTDD 88ppp TTTDD 99ppp TTTDD 11ppp TTTDD 22ppp TTTDD 33ppp TTTDD...

Section 1

  • YYGG - The day and hour of observation.
    If YY > 50, the winds are in knts and 50 added to day.
  • IIiii - The WMO number of the reporting station.

Section 5

  • nnPPP TTTDD - The significant level information

    nn - The level number (00 = surface, 11, 22, ..., 99, 11, 22, ...)
    PPP - The pressure (mb) ... if PPP < 100, add 1000.
    TTTDD - The temperature and dewpoint depression.


Part C (TTCC) - Mandatory Level above 100 mb

TTCC YYGGI IIiii 70HHH TTTDD dddff 50HHH TTTDD dddff 30HHH TTTDD dddff
20HHH TTTDD dddff 10HHH TTTDD dddff
88PPP TTTDD dddff 77PPP dddff ...

Section 1

  • YYGG - The day and hour of observation.
    If YY > 50, the winds are in knts and 50 added to day.
    I - Top level which wind data is included:
      1  10 mb
      2  20 mb
      3  30 mb
      5  50 mb
      7  70 mb
      /  no wind group is included
    
  • IIiii - The WMO number of the reporting station.

Section 2

  • PPHHH TTTDD dddff - Mandatory level information

    HHH - The geopotential height (m)
    TTTDD - The temperature and dewpoint depression
    dddff - The wind direction and speed (see below)

Section 3

  • 88PPP TTTDD dddff - Tropopause level information

    88PPP - The tropopause pressure (mb) ... 999 if missing
    TTTDD - The temperature and dewpoint depression
    dddff - The wind direction and speed (see below)

Section 4

  • 77PPP dddff - Maximum wind level information

    77PPP - The maximum wind pressure (mb) ... 999 if missing
    dddff - The wind direction and speed (see below)


Part D (TTDD) - Significant Level above 100 mb

TTDD YYGG0 IIiii 11ppp TTTDD 22ppp TTTDD 33ppp TTTDD 44ppp TTTDD 55ppp TTTDD 66ppp TTTDD 77ppp TTTDD 88ppp TTTDD 99ppp TTTDD 11ppp TTTDD 22ppp TTTDD 33ppp TTTDD...

Section 1

  • YYGG - The day and hour of observation.
    If YY > 50, the winds are in knts and 50 added to day.
  • IIiii - The WMO number of the reporting station.

Section 5

  • nnPPP TTTDD - The significant level information

    nn - The level number (11, 22, ..., 99, 11, 22, ...)
    PPP - The pressure (mb) ... if PPP < 100, add 1000.
    TTTDD - The temperature and dewpoint depression.