Status
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Label
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Concept definition
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Code
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Ref type
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Reference ▾
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Supplemental references
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STD 2005/06/07 |
HIGH_CLOUD |
A <CLOUD> of the genus cirrus, cirrocumulus, or cirrostratus; high cloud. Also the top of a <CLOUD> of the genus cumulonimbus or, occasionally, altostratus. |
522 |
PR |
[WMO407, Section II.2.1.2] |
[GMET, "cloud classification", 2, "high clouds"] |
STD 2005/06/07 |
LOW_CLOUD |
A <CLOUD> of the genus stratocumulus or stratus; low cloud. Also the base of a <CLOUD> of the genus cumulus; cumulonimbus; or, occasionally, nimbostratus. |
654 |
PR |
[WMO407, Section II.2.1.2] |
[GMET, "cloud classification", 2, "low clouds"] |
STD 2005/06/07 |
MIDDLE_CLOUD |
A <CLOUD> of the genus altocumulus, altostratus, or nimbostratus; middle cloud. Also portions of a <CLOUD> of the genus cumulus or cumulonimbus. |
739 |
PR |
[WMO407, Section II.2.1.2] |
[GMET, "cloud classification", 2, "middle clouds"] |
SUBM 2009/06/04 |
DUST_STORM |
An ensemble of <PARTICLE>s of <DUST> energetically lifted to great <<HEIGHT_AGL>>s by a strong and turbulent <WIND>; dust-storm. |
|
IR |
[WMO306, Volume I.1, Part A, Code Table 4678, Column 9] |
[AWS, Table 2-8] |
SUBM 2009/06/04 |
SANDSTORM |
An ensemble of <PARTICLE>s of <SAND> energetically lifted to great <<HEIGHT_AGL>>s by a strong and turbulent <WIND>; sandstorm. |
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IR |
[WMO306, Volume I.1, Part A, Code Table 4678, Column 8] |
[AWS, Table 2-7] |
SUBM 2009/06/04 |
FUNNEL_CLOUD |
<CLOUD> formed at the core of a waterspout or tornado vortex, sometimes extending right down to the <PLANETARY_SURFACE> of the <EARTH>, caused by the reduction of <<ATM_PRESSURE>> at the centre of the vortex; funnel cloud. |
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IR |
[WMO306, Volume I.1, Part A, Code Table 4678, Column 7] |
[AWS, Table 2-6] |
SUBM 2009/06/04 |
SQUALL |
An abrupt and large increase in <<WIND_SPEED>> with a duration on the order of minutes that diminishes rather suddenly; squall. |
|
IR |
[WMO306, Volume I.1, Part A, Code Table 4678, Column 6] |
[AWS, Table 2-5] |
SUBM 2009/06/04 |
DUST_DEVIL |
An ensemble of <PARTICLE>s of <DUST> or <SAND>, sometimes accompanied by small litter, raised from the ground in the form of a whirling column of varying <<HEIGHT>> with a small <<OUTSIDE_DIAMETER>> and an approximately vertical axis; dust devil. |
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IR |
[WMO306, Volume I.1, Part A, Code Table 4678, Column 5] |
[AWS, Table 2-4] |
STD 2005/06/07 |
WIND_VANE |
A visual <DEVICE> used to indicate or measure <<WIND_DIRECTION>>; wind vane. |
1418 |
PR |
[WMO182, W1240, "wind vane"] |
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STD 2005/06/07 |
WIND_ROSE_PROPERTY_SET |
A <PROPERTY_SET> describing the relative frequency of the <<WIND_DIRECTION>>, and sometimes the frequencies of the <<WIND_SPEED>>s for different directions, experienced at a given <LOCATION> over a defined period of record; wind rose property set. |
1416 |
PR |
[WMO182, W1120, "wind rose"] |
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STD 2005/06/07 |
WIND |
A <CURRENT> of <AIR> moving relative to a <PLANETARY_SURFACE>; wind. Unless otherwise specified, usually only the horizontal component is considered. |
1413 |
PR |
[WMO182, W0930, "wind"] |
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STD 2005/06/07 |
WARM_FRONT |
An <ATMOSPHERIC_FRONT> between warm and cold <AIR_MASS>s that moves so that the warmer <AIR> replaces the colder <AIR>; warm front. |
1345 |
PR |
[WMO182, W0100, "warm front"] |
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STD 2005/06/07 |
TYPHOON |
A <TROPICAL_CYCLONE> with maximum sustained <<WIND_SPEED>>s of 33 metres per second or greater near the centre and that is located in the western North Pacific; typhoon. |
1296 |
PR |
[WMO182, T1990, "typhoon"] |
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STD 2005/06/07 |
TROPOSPHERE F |
The <ATMOSPHERE_REGION> of the <EARTH>, extending from the <PLANETARY_SURFACE> to the <TROPOPAUSE>; troposphere. |
1286 |
PR |
[WMO182, T1640, "troposphere"] |
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STD 2005/06/07 |
TROPOPAUSE F |
The <BOUNDARY> between the <TROPOSPHERE> and the <STRATOSPHERE> where an abrupt change in the <<TEMPERATURE_LAPSE_RATE>> usually occurs; tropopause. |
1285 |
PR |
[WMO182, T1600, "tropopause"] |
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STD 2005/06/07 |
TROPICAL_CYCLONE |
A non-frontal, synoptic-scale <CYCLONE> originating over a tropical or sub-tropical <WATERBODY> with organized convection and definite cyclonic surface <WIND> circulation; tropical cyclone. |
1284 |
PR |
[WMO182, T1510, "tropical cyclone"] |
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STD 2005/06/07 |
THUNDERSTORM |
A storm with thunder and <LIGHTNING> produced by electrically charged cumulonimbus <CLOUD>s and usually accompanied by heavy <RAIN> and/or <HAIL>; thunderstorm. |
1241 |
PR |
[WMO182, T0940, "thunderstorm"] |
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STD 2005/06/07 |
TEMPERATURE_INVERSION- _LAYER |
A layer in an <ATMOSPHERE> where the <<AIR_TEMPERATURE>> increases with <<HEIGHT_AGL>>; temperature inversion layer. |
1214 |
PR |
[WMO182, T0210, "temperature inversion"] |
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STD 2005/06/07 |
STRATOSPHERE F |
The <ATMOSPHERE_REGION> of the <EARTH> extending from the <TROPOPAUSE> to the <STRATOPAUSE> in which the <<AIR_TEMPERATURE>> generally increases with <<HEIGHT_AGL>>; stratosphere. |
1176 |
PR |
[WMO182, S3030, "stratosphere"] |
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STD 2005/06/07 |
STRATOPAUSE F |
The top of the <TEMPERATURE_INVERSION_LAYER>, if it exists, that form the upper limit of the <STRATOSPHERE>; stratopause. |
1175 |
PR |
[WMO182, S3020, "stratopause"] |
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STD 2005/06/07 |
STATIONARY_FRONT |
An <ATMOSPHERIC_FRONT> between warm and cold <AIR_MASS>s that is moving at a <<SPEED>> less than 2,575 metres per second (five knots); stationary front. |
1160 |
PR |
[WMO182, S2760, "stationary front"] |
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STD 2005/06/07 |
SNOW_GRAINS |
<SOLID_PRECIPITATION> of very small opaque white <PARTICLE>s of <ICE> that fall from a <CLOUD> and are fairly flat or elongated with <<OUTSIDE_DIAMETER>>s generally less than 1 millimetre; snow grains. Snow grains are the solid equivalent of <DRIZZLE>. |
1127 |
PR |
[WMO182, S1610, "snow grains"] |
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STD 2005/06/07 |
RAIN |
<PRECIPITATION> of <PARTICLE>s of liquid <WATER> either in the form of drops of more than 0,5 millimetres in <<OUTSIDE_DIAMETER>> or in the form of widely scattered drops; rain. |
958 |
PR |
[WMO182, R0730, "rain"] |
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STD 2005/06/07 |
PLUME |
An identifiable stream of <AIR> with an <<AIR_TEMPERATURE>> or composition different from that of its environment; plume. EXAMPLE <SMOKE> from a <CHIMNEY>. |
882 |
PR |
[WMO182, P0820, "plume"] |
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STD 2005/06/07 |
OCCLUDED_FRONT |
A composite of two <ATMOSPHERIC_FRONT>s formed as a <COLD_FRONT> overtakes a <WARM_FRONT> or a <STATIONARY_FRONT>; occluded front. |
823 |
PR |
[WMO182, O0070, "occluded front"] |
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