metar_decode {pmetar}

Decode METAR report.

Description

Extract and parse information from a single METAR weather report or several reports.

Usage

metar_decode(
  x,
  metric = TRUE,
  altimeter = FALSE,
  numeric_only = FALSE,
  check = TRUE,
  sep = ";"
)

Arguments

x

character vector; a single METAR weather report or
historical METAR weather reports.

metric

logical; if TRUE wind speeds returned in m/s, distances in meters.
If FALSE, wind speeds returned in knots and distances in miles.

altimeter

logical; if FLASE pressures returned in hPa, if TRUE in mmHg.

numeric_only

logical; if TRUE only numeric values are returned.

check

logical; if TRUE the syntax of METAR reports will be checked and incorrect reports will be omitted. If FALSE, the incorrect syntax of reports can cause errors and breakdown of decoding. The default value is TRUE.

sep

character; comma or semicolon, used for separating decoded elements of weather conditions information. The default value is ";".

Details

Decoded METAR weather report consists of:

• Remark: Don't use for flight planning or navigation! or Incorrect METAR report! Please check the column Original_METAR.

• Airport ICAO

• Day of Month

• Hour (HH:mm)

• Time zone

• Wind speed

• Wind speed unit (m/s or kn)

• Gust

• Gust unit (m/s or kn)

• Wind shear

• Wind direction (degrees)

• Temperature (Celsius degrees)

• Dew point (Celsius degrees)

• Pressure (hPa)

• Pressure unit (hPa or mmHg)

• Visibility

• Visibility unit (m or miles)

• Cloud coverage

• Weather conditions information from WX codes

• Runway visibility (m or feet)

• Airport Name

• Longitude

• Latitude

• Elevation

• Decode Date

• Original METAR text

Value

a tibble with decoded METAR weather report or reports.

Examples

metar_decode("EPWA 281830Z 18009KT 140V200 9999 SCT037 03/M01 Q1008 NOSIG")
metar_decode("CYUL 281800Z 13008KT 30SM BKN240 01/M06 A3005 RMK CI5 SLP180",
altimeter = TRUE, metric = FALSE)
metar_decode("201711271930 METAR LEMD 271930Z 02002KT CAVOK 04/M03 Q1025")
metar_decode("CYUL 281800Z 13008KT 30SM BKN240 01/M06 A3005", altimeter = TRUE)
metar_decode("CYWG 172000Z 30015G25KT 3/4SM R36/4000FT/D -SN M05/M08 A2992")
metar_decode("202103251800 METAR COR NFTL 251800Z 00000KT SCT017TCU BKN290 25/25 Q1014")