A .NET 6.0 library intended for parsing raw METAR data. Current version can parse METAR and TREND reports. Nuget package: https://www.nuget.org/packages/MetarParserCore/
This library is easy to use. Just follow exanple below:
// Input raw METAR string
var raw = "UWKD 291500Z 32003MPS CAVOK 18/02 Q1019 R29/CLRD70 NOSIG RMK QFE753/1004=";
// Initialize METAR parser
var metarParser = new MetarParser();
// Parse raw METAR
var airportMetar = metarParser.Parse(raw);
// Serialization using Newtonsoft.Json
var serializedResult = JsonConvert.SerializeObject(airportMetar);| Classes | Description |
|---|---|
| ReportBase | Base abstract class for all meteorological reports. |
| Metar | General METAR data class. Any property of this class could be null. Inhereted from ReportBase. |
| Property name | Type | Description |
|---|---|---|
| ReportType | enum ReportType | METAR report type |
| IsNil | bool | Report is empty |
| Month | enum Month | Current month |
| Modifier | enum MetarModifier | METAR modifier |
| SurfaceWind | SurfaceWind | Info about surface wind |
| PrevailingVisibility | PrevailingVisibility | Info about visibility |
| PresentWeather | WeatherPhenomena[] | Special weather conditions |
| CloudLayers | CloudLayer[] | Info about clouds (Cloud layers) |
| ParseErrors | string[] | Array of parse errors |
| Unrecognized | string[] | Unrecognized tokens by METAR TokenRecognizer |
| Property name | Type | Description |
|---|---|---|
| Airport | string | Airport ICAO code |
| ObservationDayTime | ObservationDayTime | Date and time by Zulu of the observation |
| RunwayVisualRanges | RunwayVisualRange[] | Info about visibility on runways (RVR) |
| Temperature | TemperatureInfo | Information about temperature |
| AltimeterSetting | AltimeterSetting | Information about air pressure |
| RecentWeather | WeatherPhenomena | Recent weather info |
| WindShear | WindShear | Wind shear info |
| Motne | Motne[] | Info about runway conditions |
| SeaCondition | SeaCondition | Info about sea-surface temperature and state |
| Trends | Trend[] | Information about changes of weather forecast |
| IsDeneb | bool | Fog dispersal operations are in progress |
| MilitaryWeather | MilitaryWeather | Military airfield weather (represents in color codes) |
| Remarks | string | Additional remarks (RMK) |
| Property name | Type | Description |
|---|---|---|
| Direction | int | Current wind direction (heading) |
| IsVariable | bool | Sign if wind has variable direction (VRB) |
| Speed | int | Speed of the wind |
| GustSpeed | int | Max wind speed or gust speed |
| WindUnit | enum WindUnit | Type of wind unit |
| ExtremeWindDirections | ExtremeWindDirections | Info about extreme wind directions |
| Property name | Type | Description |
|---|---|---|
| IsCavok | bool | Sign if visibility marked as CAVOK. Means Ceiling and Visibility OK |
| VisibilityInMeters | VisibilityInMeters | Prevailing visibility in meters |
| VisibilityInStatuteMiles | VisibilityInStatuteMiles | Prevailing visibility in statute miles |
| Property name | Type | Description |
|---|---|---|
| WeatherCondition | enum WeatherCondition | Ordered array of weather conditions |
| Property name | Type | Description |
|---|---|---|
| CloudType | enum CloudType | Cloud type |
| CloudAltitude | int | Cloud altitude |
| ConvectiveCloudType | enum ConvectiveCloudType | Convective cloud type |
| IsCloudBelow | bool | Cloud below airport (in mountain airports) |
| Property name | Type | Description |
|---|---|---|
| Day | int | Day of the current month |
| Time | Time | Time of the observation |
| Property name | Type | Description |
|---|---|---|
| RunwayNumber | string | Number of the current runway |
| VisibilityValue | int | RVR value in meters/feets (min) |
| UnitType | enum RvrUnitType | Unit type of the current RVR |
| MeasurableBound | enum MeasurableBound | Mark of the measurement area |
| RvrTrend | enum RvrTrend | Rvr trend |
| Property name | Type | Description |
|---|---|---|
| Value | int | Temperature value in Celsius |
| DewPoint | int | Temperature dew point in Celsius |
| Property name | Type | Description |
|---|---|---|
| UnitType | enum AltimeterUnitType | Altimeter unit type |
| Value | int | Altimeter value |
| Property name | Type | Description |
|---|---|---|
| IsAll | bool | Wind shear on all runways |
| Type | enum WindShearType | Wind shear type |
| RunwayNumber | string | Runway number |
| Property name | Type | Description |
|---|---|---|
| RunwayNumber | string | Runway number |
| Specials | enum MotneSpecials | MOTNE special sign |
| TypeOfDeposit | enum MotneTypeOfDeposit | Type of deposit |
| ExtentOfContamination | enum MotneExtentOfContamination | Extent of contamination of the current runway |
| DepthOfDeposit | int | Depth of deposit (2 digits) -1 - depth not significant (has value "//") |
| FrictionCoefficient | int | Braking conditions -1 - not measured (has value "//") |
| Property name | Type | Description |
|---|---|---|
| SeaTemperature | int | Temperature in Celsius |
| WaveHeight | int | Average height of the waves in decimeters |
| SeaState | enum SeaState | Sea state |
| Property name | Type | Description |
|---|---|---|
| TrendType | enum TrendType | TREND report type |
| TrendTime | TrendTime | TREND time |
| MilitaryWeather | MilitaryWeather | Military airfield weather (represents in color codes) |
| Property name | Type | Description |
|---|---|---|
| MilitaryColorCode | enum MilitaryColorCode[] | Array of color codes |
| IsClosed | bool | Sign if airfield is closed. BLACK color is defined |
| Property name | Type | Description |
|---|---|---|
| FirstExtremeDirection | int | First value of the extreme wind direction interval |
| LastExtremeWindDirection | int | Last value of the extreme wind direction interval |
| Property name | Type | Description |
|---|---|---|
| VisibilityValue | int | Visibility value in meters |
| VisibilityDirection | enum VisibilityDirection | Direction of the represented visibility |
| MaxVisibilityValue | int | Max visibility value |
| MaxVisibilityDirection | enum VisibilityDirection | Max visibility direction |
| Property name | Type | Description |
|---|---|---|
| LessThanSign | bool | (M sign) - denotes less than represented value |
| WholeNumber | int | Whole number miles of visibility/whole number of mixed fraction |
| Numerator | int | Numerator of the fraction |
| Denominator | int | Denominator of the fraction |
| Property name | Type | Description |
|---|---|---|
| Hours | int | Hours |
| Minutes | int | Minutes |
| Property name | Type | Description |
|---|---|---|
| AtTime | Time | Attribute "AT" |
| FromTime | Time | Attribute "FM" |
| TillTime | Time | Attribute "TL" |
| ValueName | ID | Description |
|---|---|---|
| NotSpecified | 0 | |
| Metar | 1 | METAR report |
| Trend | 2 | TREND Report |
| ValueName | ID |
|---|---|
| None | 0 |
| January | 1 |
| February | 2 |
| March | 3 |
| April | 4 |
| May | 5 |
| June | 6 |
| July | 7 |
| August | 8 |
| September | 9 |
| October | 10 |
| November | 11 |
| December | 12 |
| ValueName | ID |
|---|---|
| None | 0 |
| Auto | 1 |
| Cor | 2 |
| ValueName | ID |
|---|---|
| None | 0 |
| MetersPerSecond | 1 |
| KilometersPerHour | 2 |
| Knots | 3 |
| ValueName | ID | Description |
|---|---|---|
| None | 0 | |
| Light | 1 | |
| Heavy | 2 | |
| Vicinity | 3 | |
| Shallow | 4 | |
| Patches | 5 | |
| Partial | 6 | |
| Drifting | 7 | |
| Blowing | 8 | |
| Shower | 9 | |
| Thunderstorm | 10 | |
| Freezing | 11 | |
| Drizzle | 12 | |
| Rain | 13 | |
| Snow | 14 | |
| SnowGrains | 15 | |
| IceCrystals | 16 | |
| IcePellets | 17 | |
| Hail | 18 | |
| SnowPellets | 19 | |
| UnknownPrecipitation | 20 | |
| Mist | 21 | Mist - visibility is 1000 meters or more |
| Fog | 22 | Fog - visibility is less than 1000 meters |
| Smoke | 23 | |
| VolcanicAsh | 24 | |
| Dust | 25 | |
| Sand | 26 | |
| Haze | 27 | |
| Spray | 28 | |
| DustWhirls | 29 | |
| Squalls | 30 | |
| FunnelCloud | 31 | |
| SandStorm | 32 | |
| DustStorm | 33 | |
| NoSignificantWeather | 34 | NSW |
| ValueName | ID | Description |
|---|---|---|
| None | 0 | Not specified |
| SkyClear | 1 | Sky clear - No cloud present |
| Few | 2 | Few - 1-2 oktas |
| Scattered | 3 | Scattered - 3-4 oktas |
| Broken | 4 | Broken - 5-7 oktas |
| Overcast | 5 | Overcast - 8 oktas |
| VerticalVisibility | 6 | Vertical visibility - indefinite ceiling |
| Clear | 7 | Clear below 10,000 ft as interpreted by an autostation |
| NoSignificantClouds | 8 | No significant clouds - clouds present at and above 5,000 ft |
| NoCloudDetected | 9 | No cloud detected |
| ValueName | ID |
|---|---|
| None | 0 |
| Cumulonimbus | 1 |
| ToweringCumulus | 2 |
| ValueName | ID |
|---|---|
| None | 0 |
| Meters | 1 |
| Feets | 2 |
| ValueName | ID | Description |
|---|---|---|
| None | 0 | |
| Lower | 1 | Preceding the lowest measurable value |
| Higher | 2 | Preceding the highest measurable value |
| ValueName | ID | Description |
|---|---|---|
| None | 0 | Not represented |
| Upward | 1 | Visibility became better |
| Downward | 2 | Visibility became worse |
| NoChange | 3 | Without changes |
| ValueName | ID |
|---|---|
| None | 0 |
| Hectopascal | 1 |
| InchesOfMercury | 2 |
| ValueName | ID | Description |
|---|---|---|
| Both | 0 | Wind shear during landing or take off |
| TakeOff | 1 | Wind shear during take off |
| Landing | 2 | Wind shear during landing |
| ValueName | ID | Description |
|---|---|---|
| Default | 0 | Special sign not specified |
| Cleared | 1 | Contamination has disappeared or runway has been cleared |
| Closed | 2 | Runway closed |
| ClosedToSnow | 3 | Closed due to snow |
| ValueName | ID |
|---|---|
| ClearAndDry | 0 |
| Damp | 1 |
| Wet | 2 |
| Rime | 3 |
| DrySnow | 4 |
| WetSnow | 5 |
| Slush | 6 |
| Ice | 7 |
| RolledSnow | 8 |
| FrozenRuts | 9 |
| NotReported | 10 |
| ValueName | ID | Description |
|---|---|---|
| NotReported | 0 | Not reported, marked as "/" |
| Less10 | 1 | 10% or less of runway covered |
| From11To25 | 2 | 11% to 25% of runway covered |
| From26To50 | 3 | 26% to 50% of runway covered |
| From51To100 | 4 | 51% to 100% of runway covered |
| ValueName | ID | Description |
|---|---|---|
| Glassy | 0 | Waves height = 0 meters |
| Rippled | 1 | Waves height from 0 to 0.1 meters |
| Wavelets | 2 | Waves height from 0.1 to 0.5 meters |
| Slight | 3 | Waves height from 0.5 to 1.25 meters |
| Moderate | 4 | Waves height from 1.25 to 2.5 meters |
| Rough | 5 | Waves height from 2.5 to 4 meters |
| VeryRough | 6 | Waves height from 4 to 6 meters |
| High | 7 | Wave height from 6 to 9 meters |
| VeryHigh | 8 | Wave height from 9 to 14 meters |
| Phenomenal | 9 | Wave height over 14 meters |
| None | 10 | Not reported |
| ValueName | ID | Description |
|---|---|---|
| None | 0 | Not specified |
| Becoming | 1 | A changes may happen or not |
| Tempo | 2 | Changes is definitely happen |
| NoSignificantChanges | 3 |
| ValueName | ID | Description |
|---|---|---|
| Unknown | 0 | Unknown code |
| Blue | 1 | Visibility is greater 5 mi, ceiling is greater 2500 ft |
| White | 2 | Visibility 3 3/8 - 5 mi, ceiling 1500 - 2500 ft |
| Green | 3 | Visibility 2 1/4 - 3 - 1/8, ceiling > 700 - 1500 ft |
| Yellow | 4 | Visibility 1 1/8 - 2 - 1/4, ceiling > 300 - 700 ft |
| Amber | 5 | Visibility 1/2 - 1 1/8 mi, ceiling 200 - 300 ft |
| Red | 6 | Visibility less 1/2 mi, ceiling less 200 ft |
| ValueName | ID |
|---|---|
| NotSet | 0 |
| North | 1 |
| NorthEast | 2 |
| East | 3 |
| SouthEast | 4 |
| South | 5 |
| SouthWest | 6 |
| West | 7 |
| NorthWest | 8 |
If you have any feedback, contact me [email protected]
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