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Terminal aerodrome forecast
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==Code== This TAF example of a 30-hour TAF was released on November 5, 2008, at 1730 [[UTC]]: <pre>TAF KXYZ 051730Z 0518/0624 31008KT 3SM -SHRA BKN020 FM052300 30006KT 5SM -SHRA OVC030 PROB30 0604/0606 VRB20G35KT 1SM TSRA BKN015CB FM060600 25010KT 4SM -SHRA OVC050 TEMPO 0608/0611 2SM -SHRA OVC030 RMK NXT FCST BY 00Z=</pre> The first line contains identification and validity times. * '''TAF''' indicates that the following is a terminal [[aerodrome]] forecast. This line may also indicate an amended forecast (<code>TAF AMD</code>) or a corrected forecast (<code>TAF COR</code>)<ref name="AWH">{{Cite AWH|year=2024|chapter=27|pages=7-8}}</ref> * '''KXYZ''' indicates the airport to which the forecast applies ([[ICAO airport code]]). * '''051730Z''' indicates that the report was issued on the 5th of the month at 1730 [[UTC]] (also known as Zulu, hence the '''Z'''). * '''0518/0624''' indicates that the report is valid from the 5th at 1800 UTC until the 6th at 2400 UTC. The remainder of the first line contain the initial forecast conditions. Variations of the codes used for various weather conditions are many.<ref name="AWC-decoder">{{cite web|title=TAF decoder|url=https://www.aviationweather.gov/taf/decoder|access-date=2021-05-12|publisher=US Dept of Commerce, National Oceanic and Atmospheric Administration, National Weather Service, National Centers for Environmental Prediction, Aviation Weather Center}}</ref> * '''31008KT''' indicates that the wind will be from 310Β° true at {{convert|8|kn|mph m/s|0|lk=in}}. * '''3SM -SHRA BKN020''' indicates that visibility will be {{Convert|3|smi|4=0}} in light ('''-''') showers ('''SH''') of rain ('''RA'''), with a broken ceiling (between {{frac|5|8}} and {{frac|7|8}} of the sky covered) at {{convert|2000|ft|round=50}} above ground level (AGL). Each line beginning with '''FM''' indicates a rapid change in the weather over a period of less than an hour. * '''FM052300''' indicates the next period lasts from ('''FM''') the 5th at 2300 UTC to the 6th at 0600 UTC (the effective time on the next '''FM''' line). The remainder of the line has similar formatting to the other forecast lines: '''30006KT''' wind from 300Β° at {{Convert|6|kn}}, '''5SM''' visibility {{Convert|5|smi|4=0}}, '''-SHRA''' light rain showers, '''OVC030''' [[overcast]] at {{convert|3000|ft|round=50}}. ** '''PROB30''' indicates a 30% probability of the following temporary conditions on the 6th between 0400 UTC and 0600 UTC: '''VRB20G35KT''' wind of variable direction at {{Convert|20|kn|round=5}} with gusts up to {{Convert|35|kn}}, '''1SM''' visibility {{Convert|1|smi}}, '''TSRA''' thunderstorms and rain, '''BKN015CB''' broken [[cumulonimbus]] clouds at {{convert|1500|ft|round=50}}. * '''FM060600''' indicates that the next period lasts from the 6th at 0600 UTC until 2400 UTC (the end of the forecast period, as there is no following '''FM'''): '''25010KT''' wind from 250Β° at {{Convert|10|kn|round=5}}, '''4SM''' visibility {{Convert|4|smi|round=0.5}}, '''-SHRA''' light rain showers, '''OVC050''' overcast at {{convert|5000|ft|round=50}}. ** '''TEMPO''' means that these conditions are temporarily replaced, for periods up to 50% of the time, lasting up to 1 hour for each occurrence, between 0800 UTC and 1100 UTC with: '''2SM''' visibility {{Convert|2|smi|round=0.5}}, '''-SHRA''' light rain showers, '''OVC030''' overcast at {{convert|3000|ft|round=50}}. (The wind speed remains the same, as it is not mentioned.) The final line is for errata, comments, and remarks. * '''RMK NXT FCST BY 00Z''' indicates a remark that the next forecast will be issued by 0000 UTC.
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