WebSep 16, 2024 · What Does VC mean in a METAR? Vicinity. 1.2 The term Vicinity (VC) is used in the METAR and SPECI to note certain weather phenomena away from the aerodrome. For example, showers observed approximately 10 km from the aerodrome would be … WebJul 23, 2016 · AUTO means the report came from an automated source. 12008KT means the wind is from 120° true at 8 knots. 4SM means the visibility is 4 statute miles. -RA HZ means light rain and haze. BKN010 OVC023 means ceiling 1,000 ft. broken, 2,300 ft. overcast. 21/17 means the temperature is 21°C and the dew point is 17°C.
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WebSuch a varying wind direction might occur in the immediate wake of a cold front. I don't mean to be overly-picky, but variable wind directions are always encoded in the clockwise direction (just for the record). Okay, back to decoding the Concord METAR. 1 3/4SM translates to a horizontal visibility of one and three-fourths statute miles. WebAug 4, 2024 · Boldmethod. 2) Light Beam Ceilometers use trigonometry and a light beam to determine cloud heights. Essentially, a light beam is placed at a position away from the station and directed upward. A measurement device at the station senses when the light disappears into the cloud deck. Using trigonometry, cloud altitudes can be recorded. irs audit office locations
How Cloud Ceilings Are Reported Boldmethod
WebMETAR(Aviation Routine Weather Report) refers to a scheduled observation taken between 55-59 minutes past the hour (also referred to as a routine hourly observation). SPECI(Special Report) refers to an unscheduled observation that met a predefined criteria (such as a change from VFR to IFR) and may be taken at 00-54 minutes past the hour. WebMay 19, 2024 · METARs Are Routine, SPECIs Are Not Aviation Routine Weather Reports (METARs) and Aviation Selected Special Weather Reports (SPECIs) report the current weather conditions at an airport. METARs are reported once per hour, and are the most common type of observation. irs audit for charitable donations