AO1 means automated but no precipitation discriminator. The precipitation discriminator will be able to sense the difference between rain and snow. The METAR format is documented in the Federal Meterological Handbook No. 1 in Chapter 12.
What does CIG mean in a METAR?
KEY TO DECODING THE U.S. METAR OBSERVATION REPORT
| KEY TO DECODING A METAR REPORT | |
|---|---|
| METAR | TYPE OF REPORT |
| CIG 013V017 | VARIABLE CEILING |
| CIG 017 RWY11 | CEILING HEIGHT AT SECOND LOCATION |
| PRESFR | PRESSURE RISING OR FALLING RAPIDLY |
What does visibility 10SM mean?
This is the visibility that is considered representative of visibility conditions at the station.” Automated stations, generally report a max visibility of 10 SM.
What does TSNO mean on a METAR?
TSNO
| Acronym | Definition |
|---|---|
| TSNO | Thunderstorm Information Not Available (METAR) |
| TSNO | Texas School Nurses Organization |
| TSNO | The Sovereign Nation Of |
| TSNO | Tsumura Suzuki Non-Obese (mice) |
What does P6SM mean on a TAF?
6 statute miles visibility
P6SM means plus 6 statute miles visibility, and 2SM means 2 statute miles visibility.
What is an ASOS A02?
A02 indicates a station with a precipitation identification sensor. AWOS information can be obtained on the proper frequency in flight and by telephone on the ground.
What is VV in aviation?
VV. Vertical Visibility (Indefinite Ceiling) WS. Wind shear (In TAFs, low level and not associated with convective activity)
What does 9999 mean 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)
What does DURD mean in a Pirep?
DURING DECENT
Weather Abbreviations
| D | |
|---|---|
| DABRK | DAYBREAK |
| DURC | DURING CLIMB (PIREP) |
| DURD | DURING DECENT (PIREP) |
| DVV | DOWNWARD VERTICAL VELOCITY |
What is A02 in METAR?
A02 means that the site is automated and HAS a precipitation sensor. If it were AO1, there would be no precip sensor. This does not mean the site is un-manned. If there is an AUTO after the ID in the metar ob, then there is no observer.
What does ao02 mean on a weather report?
A02 means that the site is automated and HAS a precipitation sensor. If it were AO1, there would be no precip sensor. This does not mean the site is un-manned. If there is an AUTO after the ID in the metar ob, then there is no observer.
What is the difference between RMK A02 and AO1?
RMK simply means REMARKS and marks the end of the standard metar observation and the beginning of the remarks that are put in as necessay. A02 means that the site is automated and HAS a precipitation sensor. If it were AO1, there would be no precip sensor. This does not mean the site is un-manned.
What is the aircrew Quick Reference Guide to METAR and Taf codes?
The Aircrew Quick Reference Guide to the METAR and TAF Codes is designed to help aircrews quickly and clearly translate METAR and TAF codes into plain language. See references in Attachment 1 for a listing of source documents.
What is the difference between METAR and SPECI?
METAR-TYPE METAR is the scheduled observation taken at the end of each hour. SPECI is an observation taken at an unscheduled time due to certain criteria that is met such as low visibility, low clouds, frozen precipitation, or thunderstorms.
