Raw AVIATION ROUTINE WEATHER REPORT (METAR) Data
[uploaded as mdraw.txt]

Time shown is Z/GMT/UTC

Raw TERMINAL AERODROME FORECAST (TAF) Data
[uploaded as mdtaf.txt]

Time shown is Z/GMT/UTC

The following is taken from the NOAA web site:

A Discussion of TAF Cycles

In the U.S., TAFs are produced four times a day starting at approximately 30 minutes before each main synoptic hour (00Z, 06Z, 12Z, and 18Z). All the forecasts produced starting one hour before the main synoptic hour up to four hours past the main synoptic hour are considered to be for the same cycle. For example, forecasts produced between 1100Z and 1600Z are all considered to be 12Z forecastss. In reality, forecasts contain the starting and ending times for which the forecast is valid. Our rule of thumb is that all forecasts produced between (hh-1)00Z to (hh+4)44Z are considered to be for the hh cycle. The following table summarizes the relationship between forecast production time and cycle:

Forecast Cycle	Forecast Production Range
	From	To
00Z	2300	0459
06Z	0500	1059
12Z	1100	1659
18Z	1700	2259

Please note that outside of the U.S., TAF observations may be taken on different schedules. For our purposes, we include non-U.S. observations within the same file structure.