Often asked: What Is Tcu In Aviation Coded Weather?

What is TCU Metar?

TCU – Towering Cumulus. Other: A01 – Automated Observation without precipitation discrimination. A02 – Automated Observation with precipitation discrimination.

What does TX mean in TAF?

TX – Indicator for Maximum temperature. TtTt – Temperature value in Celsius. TN – Indicator for Minimum temperature. HH – Forecast hour, i.e. the time(hour) when the temperature is expected.

How do you read aviation weather?

Date and time of report —depicted in a six-digit group (161753Z). The first two digits are the date, the 16th of the month, and the last four digits are the time of the METAR, which is always given in coordinated universal time (UTC), otherwise known as Zulu time.

How do you decode a Metar?

To decode, place a “10” or “9” before the first digit (use a 9 if the 3-digit value is 500 or more), and place a decimal point before the last digit. The sea level pressure remark in the above example would read “current sea level pressure of 1003.4 millibars.”

What does 9999 mean in Metar?

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.

How long is a Metar valid?

Validity: Issued every hour, usually 55~59 past the hour. Data may be up to 15 minutes old, should not be older. Valid for 1 hour or until the next released report.

What does P mean in Metar?

P. indicates greater than the highest reportable value. PCPN. precipitation.

What does Cavok mean?

The Visibility, Cloud, and Weather groups are replaced by the term CAVOK (cloud and visibility OK) when the following conditions exist simultaneously: Visibility is 10km or more. No CB or TCU and no cloud below 5000 feet or Minimum Sector Altitude (MSA) (whichever is the greater).

What does Qnh mean on a TAF?

The QNH is the atmospheric pressure corrected to mean sea level (based on International Standard Atmosphere conditions throughout the height difference) and is reported in the METAR rounded down to the nearest whole hectopascal. Some aerodromes report the QNH pressure in the METAR in inches of mercury.

What weather app pilots use?

For Android users who are searching for a reliable and easy-to- use aviation weather apps, Avia Weather is a good option. This app decodes and presents the current METARs of over 9,500 airports worldwide. With a simple color-coding system, pilots can receive quick classifications of VFR or IFR conditions.

Is Metar AGL or MSL?

Height is important, especially in the mountains. Remember, METAR and TAF report the height of clouds AGL, not MSL.

What is an aviation weather warning?

The CWA is an aviation weather warning for conditions meeting or approaching national in-flight advisory (AIRMET, SIGMET or SIGMET for convection) criteria. The CWA is primarily used by air crews to anticipate and avoid adverse weather conditions in the en route and terminal environments.

What is the T at the end of a Metar?

The “0” after the ” T ” indicates that the temperature and dew point are higher than 0 degrees Celsius (a “1” will follow the ” T ” when the dew point temperature and /or the temperature is / are less than 0 degrees Celsius).

What is a G Airmet?

A G – AIRMET is a graphical advisory of weather that may be hazardous to aircraft, but are less severe than SIGMETs. They are only valid at specific time “snapshots”. Forecasters create graphical objects depicting the areas and attributes of AIRMET hazards, which are distributed in BUFR file format.