A description of the above
variables follows below:
Surface Station Number -
The WBAN number identifying the NWS surface observation station for which hourly meteorological data are input to the
met processing program.
Year, Month and Day of Record -
Identifies the year, month and day during which the meteorological data were observed. Only the last two digits of the year are reported.
Hour - Identifies the hour of the meteorological data observation. Hour is based on the 24-hour clock and is recorded as 00 through 23. Times are Local Standard Time (LST) and are adjusted in PCRAMMET to the 01 - 24 clock in which hour 24 is the same as hour 00 of the next day.
Ceiling Height - The height of the cloud base above local terrain and is coded in hundreds of feet.
Wind Direction -
The direction from which the wind is blowing, based on the 36 point compass, e.g. 09=East, 18=South, 27=West, 36=North, 00=Calm.
Wind Speed - The wind speed measured in knots (00=Calm).
Dry Bulb Temperature -
The ambient temperature measured in whole degrees Fahrenheit.
Cloud Cover - There are two cloud cover parameters,
opaque cloud cover and total cloud cover in the SCRAM meteorological data files. Both parameters identify the amount of cloud cover measured in tens of percent, 0 = clear or less than 10%, 4 = 40-49%, '-' = overcast or 100%.
Note: PCRAMMET reads the field for opaque cloud cover.
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