What does RETS mean in METAR?
What does RETS mean in METAR?
Recent Thunderstorm
Significant recent weather observed in the period since the last routine observation will be reported by using the code letters for weather preceded by the letters RE e.g. RETS = Recent Thunderstorm.
What does Nosig mean in METAR?
no significant changes
Lastly, if the key “NOSIG” appears after the METAR, this indicates that no significant changes in weather conditions are expected in the two hours following the publication of the METAR.
What does VV001 on a METAR mean?
If the sky above the aerodrome is obscured and cloud coverage cannot be easily determined, (VV) Vertical Visibility in hundreds of feet is provided, e.g. VV001 would mean the vertical visibility is 100 feet.
What does 9999 mean in METAR?
The largest reportable metric value is 9999. This value represents a visibility greater than 9000 meters (7 SM or more). To convert visibility values from meters to statute miles see Attachment 3 on page 33 or see Flight Information Handbook conversion tables. 8. METAR.
How are METARs encoded?
In Canada, METAR and SPECI reports are not encoded by the observer, but are generated by computer software, based on hourly or special observations taken at either staffed or automatic sites. The code is composed of several groups which are always in the same relative position to one another.
How do I read METARs data?
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. A “Z” is appended to the end of the time to denote that the time is given in Zulu time (UTC) as opposed to local time.
What does 9999 mean on a TAF?
Visibility 9999 means the visibility is greater than 10 km. / / means this part of the METAR is not available (ie cloud and visibility not available from an automated weather station)
How do I read RVR reports?
In a METAR, RVR starts with the runway, coded with the letter “R”, followed by the runway number. In this example, “R18R” means RVR is being reported for runway 18 Right. RVR visibility is coded using four digits, representing RVR distance in feet. In this example, “1600” indicates the RVR for runway 18R is 1600 feet.
What does visibility 10sm mean?
On a clear day the visibility is usually “10 miles.” I cannot see that far on the ground. No one standing on the ground could see someone else 10 miles away, even if there were no obstacles in the way. At the same time, “10 miles” understates the distance someone can see when looking at at object that’s really big.
What does PROB30 mean in a TAF?
PROB30 means a slight chance. PROB40 means a medium chance. These are ways for the forecaster to show his/her confidence in this part of the forecast. PROB30 means there is a possibility that warrants a mention, but it probably won’t happen.
What does the code NOSIG at the end of a METAR mean?
The code NOSIG at the end of a METAR means that a forecaster is expecting no significant change in weather within the next two hours from the time of the METAR. Follow this SEO checklist to grow your organic traffic.
What does NOSIG mean in weather forecasting?
NOSIG is an example of a TREND forecast which is appended to METARs at stations while a forecaster is on watch. NOSIG means that no significant change is expected to the reported conditions within the next 2 hours. 2.5k views · View 7 Upvoters.
What does “CAVOK” mean on the METAR?
The fourth element in our METAR is “CAVOK”. If you see this, you can be happy. It means “Cloud and Visibility OK”. This means there is no cloud or other significant weather below 5,000ft. This is comparison with the abbreviation “SKC”, which means “sky clear”.
How is visibility information reported in METAR?
In METAR, visibility observations should be representative of the aerodrome. In such observations, special attention should be paid to significant directional variations in visibility. The visibility information is reported in steps of 50 m when visibility is less than 800 m;
