• General Symbols
  • PIN - Pin
  • PLUS - Plus
  • MINUS - Minus
  • CROSS - Cross
  • SQUARE - Square
  • FILLED_SQUARE - Filled Square
  • TRIANGLE - Triangle
  • FILLED_TRIANGLE - Filled Triangle
  • CIRCLE - Circle
  • FILLED_CIRCLE - Filled Circle
  • DIAMOND - Diamond
  • FILLED_DIAMOND - Filled Diamond
  • STAR - Star
  • FILLED_STAR - Filled Star
  • HORLINE - Hor. Line
  • VERTLINE - Vert. Line
  • LEFTARROW - Left Arrow
  • RIGHTARROW - Right Arrow
  • UPARROW - Up Arrow
  • DOWNARROW - Down Arrow
  • CUBE - Cube
  • DOWNLINE - Down Line
  • PYRAMID_4FACE - 4 Face Pyramid
  • PYRAMID_5FACE - 5 Face Pyramid
  • FILLED_SPHERE - Sphere
  • AIRPLANE - 2-D Airplane
  • AIRPLANE3D - 3-D Airplane
  • NONE - None
• Present Weather
  • WX_PRESENTWX_0 - Cloud development not observed or not observable
  • WX_PRESENTWX_1 - Clouds generally dissolving or becoming less developed
  • WX_PRESENTWX_2 - State of sky on the whole unchanged
  • WX_PRESENTWX_3 - Clouds generally forming or developing
  • WX_PRESENTWX_4 - Visibility reduced by smoke
  • WX_PRESENTWX_5 - Haze
  • WX_PRESENTWX_6 - Widespread dust in suspension in the air, not raised by wind
  • WX_PRESENTWX_7 - Dust or sand (or spray) raised by wind
  • WX_PRESENTWX_8 - Well developed dust or sand whirl(s)
  • WX_PRESENTWX_9 - Duststorm or sandstorm within sight or during preceding hour
  • WX_PRESENTWX_10 - Mist
  • WX_PRESENTWX_11 - Patches of shallow fog or ice fog (less than 2m land, 10m sea)
  • WX_PRESENTWX_12 - Continuous shallow fog or ice fog (less than 2m land, 10m sea)
  • WX_PRESENTWX_13 - Lightning visible, no thunder heard
  • WX_PRESENTWX_14 - Precipitation in sight, not reaching the ground
  • WX_PRESENTWX_15 - Precipitation in sight, reaching the ground, more than 5km away
  • WX_PRESENTWX_16 - Precipitation in sight, reaching the ground nearby
  • WX_PRESENTWX_17 - Thunderstorm, but no precipitation at time of observation
  • WX_PRESENTWX_18 - Squalls within sight during the preceding hour
  • WX_PRESENTWX_19 - Funnel cloud(s) within sight during the preceding hour
  • WX_PRESENTWX_20 - Recent drizzle or snow grains
  • WX_PRESENTWX_21 - Recent rain
  • WX_PRESENTWX_22 - Recent snow
  • WX_PRESENTWX_23 - Recent rain and snow or ice pellets
  • WX_PRESENTWX_24 - Recent freezing drizzle or freezing rain
  • WX_PRESENTWX_25 - Recent rain showers
  • WX_PRESENTWX_26 - Recent showers of snow, or of rain and snow
  • WX_PRESENTWX_27 - Recent showers of hail, or of rain and hail
  • WX_PRESENTWX_28 - Recent fog
  • WX_PRESENTWX_29 - Recent thunderstorm
  • WX_PRESENTWX_30 - Slight or moderate duststorm or sandstorm, has decreased in last hour
  • WX_PRESENTWX_31 - Slight or moderate duststorm or sandstorm, no change in last hour
  • WX_PRESENTWX_32 - Slight or moderate duststorm or sandstorm, has increased in last hour
  • WX_PRESENTWX_33 - Severe duststorm or sandstorm, has decreased in last hour
  • WX_PRESENTWX_34 - Severe duststorm or sandstorm, no change in last hour
  • WX_PRESENTWX_35 - Severe duststorm or sandstorm, has increased in last hour
  • WX_PRESENTWX_36 - Slight or moderate drifting snow (below eye level)
  • WX_PRESENTWX_37 - Heavy drifting snow (below eye level)
  • WX_PRESENTWX_38 - Slight or moderate blowing snow (above eye level)
  • WX_PRESENTWX_39 - Heavy blowing snow (above eye level)
  • WX_PRESENTWX_40 - Fog extending above observer in distance
  • WX_PRESENTWX_41 - Fog in patches
  • WX_PRESENTWX_42 - Fog has become thinner in last hour, sky visible
  • WX_PRESENTWX_43 - Fog has become thinner in last hour, sky invisible
  • WX_PRESENTWX_44 - Fog, no change in last hour, sky visible
  • WX_PRESENTWX_45 - Fog, no change in last hour, sky invisible
  • WX_PRESENTWX_46 - Fog has become thicker in last hour, sky visible
  • WX_PRESENTWX_47 - Fog has become thicker in last hour, sky invisible
  • WX_PRESENTWX_48 - Fog depositing rime, sky visible
  • WX_PRESENTWX_49 - Fog depositing rime, sky invisible
  • WX_PRESENTWX_50 - Slight intermittent drizzle
  • WX_PRESENTWX_51 - Slight continuous drizzle
  • WX_PRESENTWX_52 - Moderate intermittent drizzle
  • WX_PRESENTWX_53 - Moderate continuous drizzle
  • WX_PRESENTWX_54 - Heavy intermittent drizzle
  • WX_PRESENTWX_55 - Heavy continuous drizzle
  • WX_PRESENTWX_56 - Slight freezing drizzle
  • WX_PRESENTWX_57 - Moderate or heavy freezing drizzle
  • WX_PRESENTWX_58 - Slight rain and drizzle
  • WX_PRESENTWX_59 - Moderate or heavy rain and drizzle
  • WX_PRESENTWX_60 - Slight intermittent rain
  • WX_PRESENTWX_61 - Slight continuous rain
  • WX_PRESENTWX_62 - Moderate intermittent rain
  • WX_PRESENTWX_63 - Moderate continuous rain
  • WX_PRESENTWX_64 - Heavy intermittent rain
  • WX_PRESENTWX_65 - Heavy continuous rain
  • WX_PRESENTWX_66 - Slight freezing rain
  • WX_PRESENTWX_67 - Moderate or heavy freezing rain
  • WX_PRESENTWX_68 - Slight rain or drizzle and snow
  • WX_PRESENTWX_69 - Moderate or heavy rain or drizzle and snow
  • WX_PRESENTWX_70 - Slight intermittent fall of snow flakes
  • WX_PRESENTWX_71 - Slight continuous fall of snow flakes
  • WX_PRESENTWX_72 - Moderate intermittent fall of snow flakes
  • WX_PRESENTWX_73 - Moderate continuous fall of snow flakes
  • WX_PRESENTWX_74 - Heavy intermittent fall of snow flakes
  • WX_PRESENTWX_75 - Heavy continuous fall of snow flakes
  • WX_PRESENTWX_76 - Ice prisms
  • WX_PRESENTWX_77 - Snow grains
  • WX_PRESENTWX_78 - Isolated starlike snow crystals
  • WX_PRESENTWX_79 - Ice pellets
  • WX_PRESENTWX_80 - Slight rain showers
  • WX_PRESENTWX_81 - Moderate or heavy rain showers
  • WX_PRESENTWX_82 - Violent rain showers
  • WX_PRESENTWX_83 - Slight showers of rain and snow mixed
  • WX_PRESENTWX_84 - Moderate or heavy showers of rain and snow mixed
  • WX_PRESENTWX_85 - Slight snow showers
  • WX_PRESENTWX_86 - Moderate or heavy snow showers
  • WX_PRESENTWX_87 - Slight showers of ice or snow pellets
  • WX_PRESENTWX_88 - Moderate or heavy showers of ice or snow pellets
  • WX_PRESENTWX_89 - Slight hail showers
  • WX_PRESENTWX_90 - Moderate or heavy hail showers
  • WX_PRESENTWX_91 - Slight rain, thunderstorm in last hour
  • WX_PRESENTWX_92 - Moderate or heavy rain, thunderstorm in last hour
  • WX_PRESENTWX_93 - Slight rain and/or snow or hail, thunderstorm in last hour
  • WX_PRESENTWX_94 - Moderate or heavy rain and/or snow or hail, thunderstorm in last hour
  • WX_PRESENTWX_95 - Slight or moderate thunderstorm with rain and/or snow
  • WX_PRESENTWX_96 - Slight or moderate thunderstorm with hail
  • WX_PRESENTWX_97 - Heavy thunderstorm with rain and/or snow
  • WX_PRESENTWX_98 - Thunderstorm combined with duststorm or sandstorm
  • WX_PRESENTWX_99 - Heavy thunderstorm with hail
• Low Cloud
  • WX_LOCLD_1 - Cu of fair weather, little vertical development, seemingly flattened
  • WX_LOCLD_2 - Cu of considerable development, generally towering, with or without other Cu or Sc bases all at same level
  • WX_LOCLD_3 - Cb with tops lacking clear cut outlines, but distinctly no cirriform or anvil-shaped; with or without Cu, Sc, or St
  • WX_LOCLD_4 - Sc formed by spreading out of Cu; Cu often present also
  • WX_LOCLD_5 - Sc not formed by spreading out of Cu
  • WX_LOCLD_6 - St or Fs or both, but no Fs of bad weather
  • WX_LOCLD_7 - Fs and/or Fc of bad weather (scud)
  • WX_LOCLD_8 - Cu and Sc (not formed by spreading out of Cu) with bases at different levels
  • WX_LOCLD_9 - Cb having a clearly fibrous (cirriform) top, often anvil-shaped, with or without Cu, Sc, St, or scud
• Cloud Coverage
  • WX_SKY_0 - No clouds
  • WX_SKY_1 - Less than one-tenth or one-tenth
  • WX_SKY_2 - two-tenths or three-tenths
  • WX_SKY_3 - four-tenths
  • WX_SKY_4 - five-tenths
  • WX_SKY_5 - six-tenths
  • WX_SKY_6 - seven-tenths or eight-tenths
  • WX_SKY_7 - nine-tenths or overcast with openings
  • WX_SKY_8 - completely overcast
  • WX_SKY_9 - sky obscured
  • WX_SKY_10 - missing
• Mid Clouds
  • WX_MIDCLD_1 - Thin As (most of cloud layer semi-transparent)
  • WX_MIDCLD_2 - Thick As, greater part sufficiently dense to hide sun (or moon), or Ns
  • WX_MIDCLD_3 - Thin Ac, mostly semi-transparent; cloud elements not changing much and at a single level
  • WX_MIDCLD_4 - Thin Ac in patches; cloud elements continually changing and/or occurring at more than one level
  • WX_MIDCLD_5 - Thin Ac in bands or in a layer gradually spreading over sky and usually thickening as a whole
  • WX_MIDCLD_6 - Ac formed by spreading out of Cu
  • WX_MIDCLD_7 - Double-layered Ac, or a thick layer of Ac, not increasing; or Ac with As and/or Ns
  • WX_MIDCLD_8 - Ac in the form of Cu-shaped tufts or Ac with turrets
  • WX_MIDCLD_9 - Ac of a chaotic sky, usually at different levels; patches of dense Ci are usually present also
• High Clouds
  • WX_HICLD_1 - Filaments of Ci, or "}mares tails", scattered and not increasing
  • WX_HICLD_2 - Dense Ci in patches or twisted sheaves, usually not increasing, sometimes like remains of Cb; or towers or tufts
  • WX_HICLD_3 - Dense Ci, often anvil shaped derived from or associated with Cb
  • WX_HICLD_4 - Ci, often hook shaped, spreading over the sky and usually thickening as a whole
  • WX_HICLD_5 - Ci and Cs, often in converging bands, or Cs alone; generally overspreading and growing denser; the continuous layer not reaching 45 degrees altitude
  • WX_HICLD_6 - Ci and Cs, often in converging bands, or Cs alone; generally overspreading and growing denser; the continuous layer exceeding 45 degrees altitude
  • WX_HICLD_7 - Veil of Cs covering the entire sky
  • WX_HICLD_8 - Cs not increasing and not covering the entire sky
  • WX_HICLD_9 - Cc alone or Cc with some Ci or Cs, but the Cc being the main cirriform cloud
• Pressure Tendency
  • WX_TNDCY_0 - rising then falling
  • WX_TNDCY_1 - rising then steady; or rising, then rising more slowly
  • WX_TNDCY_2 - rising steadily or unsteadily
  • WX_TNDCY_3 - falling or steady, then rising; or rising, then rising more quickly
  • WX_TNDCY_4 - steady, same as 3 hours ago
  • WX_TNDCY_5 - falling then rising, same or lower than 3 hours ago
  • WX_TNDCY_6 - falling then steady; or falling, then falling more slowly
  • WX_TNDCY_7 - falling steadily, or unsteadily
  • WX_TNDCY_8 - steady or rising, then falling; or falling, then falling more quickly
• Icing
  • WX_ICING_0 - No icing
  • WX_ICING_1 - Trace icing
  • WX_ICING_2 - Trace to light icing
  • WX_ICING_3 - Light icing
  • WX_ICING_4 - Light to moderate icing
  • WX_ICING_5 - Moderate icing
  • WX_ICING_6 - Moderate to heavy icing
  • WX_ICING_7 - Heavy or moderate to severe icing
  • WX_ICING_8 - Severe icing
  • WX_ICING_9 - Light superstructure icing
  • WX_ICING_10 - Heavy superstructure icing
• Turbulence
  • WX_TURBULENCE_0 - No turbulence
  • WX_TURBULENCE_1 - Light turbulence
  • WX_TURBULENCE_2 - Light turbulence
  • WX_TURBULENCE_3 - Light to moderate turbulence
  • WX_TURBULENCE_4 - Moderate turbulence
  • WX_TURBULENCE_5 - Moderate to severe turbulence
  • WX_TURBULENCE_6 - Severe turbulence
  • WX_TURBULENCE_7 - Extreme turbulence
  • WX_TURBULENCE_8 - Extreme turbulence
• Miscellaneous
  • WX_MISC_0 - Square (outline)
  • WX_MISC_1 - Square (filled)
  • WX_MISC_2 - Circle (outline)
  • WX_MISC_3 - Circle (filled)
  • WX_MISC_4 - Triangle (outline)
  • WX_MISC_5 - Triangle (filled)
  • WX_MISC_6 - Diamond (outline)
  • WX_MISC_7 - Diamond (filled)
  • WX_MISC_8 - Star (outline)
  • WX_MISC_9 - Star (filled)
  • WX_MISC_10 - High Pressure (outline)
  • WX_MISC_11 - Low Pressure (outline)
  • WX_MISC_12 - High Pressure (filled)
  • WX_MISC_13 - Low Pressure (filled)
  • WX_MISC_14 - Plus sign
  • WX_MISC_15 - Minus sign
  • WX_MISC_16 - Tropical Storm (NH)
  • WX_MISC_17 - Hurricane (NH)
  • WX_MISC_18 - Tropical Storm (SH)
  • WX_MISC_19 - Hurricane (SH)
  • WX_MISC_20 - Triangle with antenna
  • WX_MISC_21 - Mountain obscuration
  • WX_MISC_22 - Slash
  • WX_MISC_23 - Storm Center
  • WX_MISC_24 - Tropical Depression
  • WX_MISC_25 - Tropical Cyclone
  • WX_MISC_26 - Flame
  • WX_MISC_27 - X Cross
  • WX_MISC_28 - Low pressure with X (outline)
  • WX_MISC_29 - Low pressure with X (filled)
  • WX_MISC_30 - Tropical Storm (NH)
  • WX_MISC_31 - Tropical Storm (SH)
  • WX_MISC_32 - Volcanic activity
  • WX_MISC_33 - Blowing spray

Unidata's Integrated Data Viewer > Miscellaneous > IDV Special Data Formats