What does CCA mean in a METAR?
This was the second correction to the 1200Z report. (The first correction to a METAR or SPECI would be denoted by CCA, the second correction to the same report by CCB, and so on.)
How do I decode a METAR report?
Decoding a METARPHNL = the airfield, Honolulu's Daniel K. ... 250953Z = the date and time of the report. ... 05007G17KT = the wind conditions. ... 10SM = visibility. ... FEW024 / FEW040 = cloud cover. ... 27/19 = the temperature and dewpoint. ... A3001 = the atmospheric pressure, a.k.a. altimeter setting.More items...•
What does SA mean in METAR?
Discussion- = slight+ = HeavyBL = BlowingFZ = FreezingGR = HailHZ = HazeIC = Ice CrystalsMI = ShallowPO = Dust DevilsRA = RainSA = SandSH = ShowerSN = SnowSQ = SquallTS = Thunderstorm3 more rows
What does 9999 mean in a METAR?
The largest reportable metric value is. 9999. This value represents a visibility greater than 9000. meters (7 SM or more). The contraction CAVOK (ceiling and visibility OK) may be used when there is no significant weather, the visibility is 10 km or greater, and the ceilings are greater than 5,000 ft.
What is the 5 * * * * Group on a METAR?
53018 indicates the pressure tendency (the "5 group"). The digit following the "5", which can vary from 0 to 8, describes the behavior of the pressure over the past three hours (for guidance, consult the table below). The last three digits represent the amount of pressure change in tenths of a millibar.
What does P mean on METAR?
P. indicates greater than the highest reportable value. PCPN. precipitation. PL.
What does PK mean in a METAR?
PEAK WINDKEY TO DECODING THE U.S. METAR OBSERVATION REPORTKEY TO DECODING A METAR REPORTMETARTYPE OF REPORTTORNADO, FUNNEL CLOUD or WATERSPOUTTORNADIC ACTIVITYAO2TYPE OF AUTOMATED STATIONPK WND 20032/25PEAK WIND34 more rows
What does n mean on METAR?
no changeU means an "upward" trend: visibility is improving. D means a "downward" trend: visibility is worsening. N means no change.
What does CB mean in a METAR?
CB stands for cumulonimbus; TCU stands for towering cumulus. If surface-based clouds or other surface-based obscurations (e.g., smoke, haze) are reported (i.e., cloud base is 000), then vertical visibility, where available, is also reported in hundreds of feet, following the letters, VV.
What does 6000 mean in a TAF?
For example: BECMG 6000 means that the view will be 3¾ mi. TEMPO is followed by a temporary change, less than an hour. For example: TEMPO BKN007 means that there is a temporary cloud layer on 700 ft.
What does 444 mean M?
“The angel number 444 tells you that your connection with the angels and the angelic realm is powerful and that you can trust the guidance they are giving you,” Widney adds. “The number 444 is also a sign of love and wholeness. It represents your deep love for something or someone.”
What does 8000 mean on a TAF?
GROUP 4: Visibility, Weather, and Obstructions to Vision:MetersSM6,40048,00059,600611,20076 more rows
How do you read the weather report?
So, for example, a 'Sunny day' symbol at 10:00am means that we expect there to be sun at 10:00am. If there is a 'Heavy rain' symbol at 11:00am on the same day, we expect it will start raining between 10:00am and 11:00am, and it will be raining at 11:00am. 'Now' refers to the most recent hour mark.
What does 9900 mean in a TAF?
Wind direction is indicated in tens of degrees (two digits) with reference to true north and wind speed is given in knots (two digits). a. Light and variable wind or wind speeds of less than 5 knots are expressed by 9900.
How do I read a TAF METAR?
The direction is indicated by the first three numbers. In our case, '190' means that the wind is blowing 190° from the north, or from the south-southwest. All the numbers after the wind direction tell us about the wind speed. In our case, the first two numbers are saying that the wind is blowing at a speed of 4 knots.
What does 8000 mean in a TAF?
GROUP 4: Visibility, Weather, and Obstructions to Vision:MetersSM6,40048,00059,600611,20076 more rows
What does SPECI mean in meteorology?
METAR/SPECI. Indicates whether it is a planned sighting METAR or intermediate sighting (SPECI). The SPECI is not much used anymore because most weather stations issue a new observation every half hour.
What does 5000 mean in meters?
The visibility shown in the METAR is an average, minimum visibility . 5000 means visibility is 5000 meters. If visibility is less than 1000 meters, the number will be added to 4 characters.
How high are the broken clouds?
Broken clouds at an altitude of 1,400 ft, with cumulonimbus clouds
What is 1500SW 2000NE?
Visibility can also be listed per direction. 1500SW 2000NE means the visibility to the southwest is 1500 meters and 2000 meters to the northeast.
What is a tempo?
TEMPO is followed by a temporary change, less than an hour. For example: TEMPO BKN007 means that there is a temporary cloud layer on 700 ft.
What is Q1001 air pressure?
Q1001 means an air pressure of 1001 hPa.
What does RA mean in weather?
-RA means that there is currently light rain This is a combination of RA (rain) and - (light intensity). The codes from the lists below can be combined with each other:
What is the METAR code for rain?
Codes before remarks will be listed as "-RA" for "light rain". Codes listed after remarks may be listed as "RAB15E25" for "Rain began at 15 minutes after the top of the last hour and ended at 25 minutes after the top of the last hour."
What is a metar in aviation?
METARs can be expressed concisely using so-called aviation flight categories, which indicates what classes of flight can operate at each airport by referring to the visibility and ceiling in each METAR. Four categories are used in the U.S.:
What is the FM 15-XII code?
North American METARs deviate from the WMO (who write the code on behalf of ICAO) FM 15-XII code. Details are listed in the FAA's Aeronautical Information Manual (AIM), but the non-compliant elements are mostly based on the use of non-standard units of measurement. This METAR example is from Trenton-Mercer Airport near Trenton, New Jersey, and was taken on 5 December 2003 at 18:53 UTC.
What is a phpweather?
PhpWeather is a PHP application (with a GNU General Public License) that parses METAR reports.
What is raw meteor?
Raw METAR is the most common format in the world for the transmission of observational weather data. It is highly standardized through the International Civil Aviation Organization (ICAO), which allows it to be understood throughout most of the world.
What is a metar?
METAR is a format for reporting weather information. A METAR weather report is predominantly used by aircraft pilots, and by meteorologists, who use aggregated METAR information to assist in weather forecasting . Raw METAR is the most common format in the world for the transmission of observational weather data.
What is a complement to a metar?
The complement to METARs, reporting forecast weather rather than current weather, are TAFs. METARs and TAFs are used in VOLMET broadcasts.
What is a metar?
on METARs explained. METAR stands for aerodrome routine meteorological report and details the current observed weather at an airport. The weather may be observed by a human or by automated equipment. METARs are normally produced every hour but during significant changes in weather, a SPECI (aerodrome special meteorological report) will be published.
What does AUTO mean in math?
The first is AUTO, meaning the observation was done by an automated observation system, not a human observer. The second indicates if there is a correction. CCA would indicate the first correction, CCB the second, and so on through the alphabet. In our example, the METAR is its second correction.
What is a Metar report?
Report Type: Report type indicates the type of report, either a routine weather observation (METAR) or a special weather observation (SPECI). SPECIs are issued when the weather has changed significantly outside of the routine report. In our example, the report is a routine weather observation (METAR).
What does a P before a value mean?
If a P is before the value it indicates the value is the highest the equipment can read. A /U following the value means the RVR values are treading upwards (getting better). A /D following the value means the RVR is trending down (getting worse). A /N following the value means the is no change in the RVR.
What is it called when there is no cloud in the sky?
When there is no cloud in the sky it is called sky clear, (SKC). Cloud heights are measured in 100s of feet to 10,000 feet, then 1,000s of feet thereafter. If the sky is obscured by something like fog and it is not possible to determine cloud layers, vertical visibility (VV) is reported in 100s of feet.
What is the qualifier for light rain?
With light rain, “-” is the qualifier (intensity), “RA” is the weather phenomena (precipitation).
What is present weather?
Present weather consists of one or more weather phenomena and associated qualifier. Each weather phenomena can be either precipitation (ie. rain, snow, hail), obscuration (ie. mist, fog, haze), or other phenomena (ie. squalls, sand storm, tornado).
METAR/SPECI
- Indicates whether it is a planned sighting METARor intermediate sighting (SPECI). The SPECI is not much used anymore because most weather stations issue a new observation every half hour.
Place
- The ICAO code of the airport / weather station. Usually this is a 4 letter code. Example: EHLEstands for Lelystad Airport.
Day and Time
- The first 2 digits indicate the day of the month. Followed by the 2 digits of the hour (00-23) and the minutes (00-59). Z is the abbreviation for Zero, time zone 0 is Greenwich Mean Time (UTC). In the NATO phonetic alphabet, the Z is pronounced Zulu, which is why it is also called Zulu time. Note that both the day and time are displayed in UTC / zulu time. This is done to avoid misunder…
Cor/Auto/Nil
- COR means that this observation replaces a previously drawn up report. AUTO means that the observation is done automatically. Automatic observations are more limited than manually generated observations. NIL means that no data is known.
Wind
- 10009G19KT 060V130means that the mean wind direction is 100°, variable between 60 and 130°. The average wind speed is 9 knots (09) with peaks up to 19 knots (KT). 1. The wind direction and strength are averaged over the last 10 minutes. 2. Outliers are only listed if they are 10 knots above average. 3. A variable wind direction is only reported if it deviates more than 10° from the …
Visibility
- The visibility shown in the METAR is an average, minimum visibility. 5000means visibility is 5000 meters. If visibility is less than 1000 meters, the number will be added to 4 characters. This is to avoid confusion with the imperial system. Visibility can also be indicated in miles or parts thereof: 3SM means the visibility is 3 miles (statute mile). 3/4SMmeans visibility is 0.75 miles. 1. Visibilit…
Weather Phenomena
- -RAmeans that there is currently light rain This is a combination of RA (rain) and - (light intensity). The codes from the lists below can be combined with each other:
Clouds
- The cloud cover is listed per layer. Per layer you see: 1. The cover in octals (1/8 parts): 1.1. FEWfew clouds: 1/8th or 2/8th cover 1.2. SCTscattered clouds: 3/8th or 4/8th cover 1.3. BKNbroken clouds: 5/8th to 7/8th cover 1.4. OVCovercast clouds: 8/8th cover 2. The height of the bottom of the cloud (cloud base) in hundreds of feet above the airport: FEW007 means a cloud b…
Cavok
- CAVOKmeans that clouds and visibility are okay ("clouds and visibility OK"). CAVOK is a special code, it replaces visibility, clouds and weather. To be CAVOK these conditions must be met: 1. Visibility is more than 6¼ mi+ 2. There is no cloud below the 5,000 ft 3. There is no significant cloud cover (cumulonimbus or towering cumulus) 4. There is no significant weather With CAVO…
Temperature
- Temperature and dew point are always stated in degrees Celsius in a METAR or TAF. 02/M01means that the temperature is 2 °C and the dew point is -1 °C. Negative numbers are preceded by an M.