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METAR indicates that the following is a standard hourly observation. KTTN is the ICAO identifier for the Trenton-Mercer Airport . 051853Z indicates the day of the month is the 5th and the time of day is 1853 Zulu/ UTC , or 1:53PM Eastern Standard Time .
Surface weather observations can include the following elements: The Station Identifier, or Location identifier, consists of four characters for METAR observations, [13] with the first representing the region of the world the station lies within. For example, the first letter for areas in and around the Pacific Ocean is P, and for Europe is E.
The X value identifies the Class of the descriptor (i.e. Horizontal Coordinate parameters, Temperature parameters, etc.). The Y value is the descriptor's number within its class. Element descriptors classes 1 through 9 have the special property of remaining in effect from the moment they appear throughout the remainder of the BUFR template ...
In the United Kingdom, when the observation is taken from an automated weather observation site, the shape is a triangle. [10] If the shape is completely filled in, it is overcast. If conditions are completely clear, the circle or triangle is empty.
A TTF is a professionally considered forecast for weather over a two-hour period, [1] and is based on an actual weather report, such as a METAR or SPECI and appended to the end of it. [1] A TTF is similar to or sometimes in addition to a TAF, a terminal aerodrome forecast, but during the TTF's validity period is considered superior to a TAF.
Also actiniform. Describing a collection of low-lying, radially structured clouds with distinct shapes (resembling leaves or wheels in satellite imagery), and typically organized in extensive mesoscale fields over marine environments. They are closely related to and sometimes considered a variant of stratocumulus clouds. actinometer A scientific instrument used to measure the heating power of ...
The X rebrand may have a harder journey, Withey said, due to it being an unusual case of a high equity brand — one that was a cultural force for well over a decade — being renamed overnight.
Airport observations can be transmitted worldwide through the use of the METAR observing code. Personal weather stations taking automated observations can transmit their data to the United States mesonet through the use of the Citizen Weather Observer Program (CWOP), or internationally through the Weather Underground Internet site. [ 7 ]