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Hacker Chronicles 2
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107.FORECAST.DOC
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1985-09-16
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The Sager Automatic Forecast System
-----------------------------------
Files needed:
FORECAST.COM
SAGER.DAT
WEATHER.DAT
WINDDIR.DAT
WINDSPD.DAT
System Description:
The IBM-PC Forecasting System is an automated weather forecasting
package derived from the Sager Weather Forecaster handheld manual computer.
Forecasts computed by the system should be fairly accurate for about
a six to twelve hour period. However, as time goes on the forecasts
tend to be less accurate. You may be suprised, though, how close the
forecasts are to the TV news forecasts.
The software was written in Turbo Pascal and should work on any IBM-PC
compatible system. The source code is listed as 'FORECAST.PAS'.
Input Required:
1. WIND DIRECTION: Wind direction should be two alphanumeric characters
that represent one of eight wind direction vectors.
N = NORTH
NE = NORTHEAST
E = EAST
SE = SOUTHEAST
S = SOUTH
SW = SOUTHWEST
W = WEST
NW = NORTHWEST
2. BAROMETRIC PRESSURE: The barometric pressure at sea level in
inches of mercury.
29.95 = Twenty-Nine point Nine Five Inches of Mercury
3. PRESSURE TENDENCY: Pressure tendency is the current tendency of the
barometric pressure.
R = RISING
RR = RISING RAPIDLY
N = NORMAL
F = FALLING
FR = FALLING RAPIDLY
NOTE: It is normal for the pressure to rise in the morning and fall
in the afternoon. This cycle is repeated during a 24 hour
period.
4. SKY CONDITION: Sky condition is the condition of the atmosphere. The
possible conditions are:
CLEAR = CLEAR SKIES
PCLOUDY = PARTLY CLOUDY SKIES
MCLOUDY = MOSTLY CLOUDY SKIES
CLOUDY = CLOUDY SKIES
PRECIP = RAIN, SLEET, SNOW, ETC. (PRECIPITATION)
NOTE: All of this information is available hourly from the National Weather
Service here in Atlanta on NOAA weather radio frequency 162.550 Mhz.
It is also available by telephone at 767-1784 or 767-1785.
Also make sure that you are in UPPER case mode when you are entering
alphanumeric characters.