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1987-01-04
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WEATHER - Version 5.1
For The IBM Family Of PC's & Compatibles
~~~~~~~~~~~~
By: Phil Baughn
Distributed Through: The Mailroom RBBS-PC
2050 Idle Hour Center
Lexington, KY 40502
Data : (606)293-5119
Voice: (606)268-0206
CompuServe User #:
[ 76044,1535 ]
~~~~~Index~~~~~
Shareware Notice
Whats New? [ With version 5.1 ]
Whats Included In The Program Package?
Brief Description Of Each Module
:Forecasting
:Wind Chill
:Temp-Humidity Index
:Heat Index
:Dew Point
Practical Usage Of Each Module
:Forecasting
:Wind Chill
:Temp-Humidity Index
:Heat Index
:Dew Point
Future Directions...
~~~~~~~~~~~~~~~~~~~~
ShareWare...
This program is distributed as ShareWare. You may fell free to copy and
revise it as you like as long as you do not remove or alter any of the
credit information located in lines 1-200 and elsewhere in the program.
You are welcome to revise, add and make improvements to this program. If
you find that you have made some significant improvements and additions
to this package, please upload them to my attention either at The Mailroom
RBBS or to Compuserve; User # 76044,1535.
~~~~~~~~~~~~~~~~~~~
Whats New With This Version...
- Caps & Num Locks are now 'poked' on eliminating possible errors.
- Code for the program to run properly on MONO monitors and cards
has been added by John Fleming of Detroit. User now asked whether
using a color monitor or not and adjustments made accordingly.
- Dew Point Calculation! Dew point is "backed" into given the current
temperature and relative humidity.
- Basic source code has been cleaned up and better organized into
subroutines to allow for easier interpretation of the modules and
possible refinement by the end users. REMarks clearly indicating
all major areas of the program have been added.
This housecleaning of the source code will eventually allow the
program to take on a great deal more "practical" uses building
on the existing information already supplied and calculated in
the existing modules with relative ease.
- Heat Index and THI quick explanation pages have been added as a
user selectable option to give a more immediate interpretation
of the results of these two calculations from within the program.
~~~~~~~~~~~~~~~~~~~
Whats Included In The Package...
- This quick reference documentation file.
- The actual BASIC source code for the program itself.
This is an actual IBM/MS BASIC program and can be
run under the BASIC interpreter by typing:
BASICA WX43
At the DOS command prompt. [ Be sure that BASICA is available
either on the current disk or through an appropriate PATH. ]
- An EXEcutable, compiled, version of the program which can be
easily run from the DOS command prompt by typing WX43.
- You will find that the compiled version is somewhat faster.
- A comments form. Your feedback on this program and it's future
direction is appreciated. If you are unable to submit feedback
and suggestions to either CompuServe or The MAILROOM RBBS, please
take a moment and jot your ideas down here. Thank you.
~~~~~~~~~~~~~~~~~~~
The Weather Modules...
Forecasting:
Given the barometric pressure and temperature, this module will predict the
weather for your area for approximently the next 24-48 hour time period. It
is sometimes necessary to advise the program as the whether the pressure is
rising, falling, or steady; and whether or not the tendency is moving rapid
ly or slowly. The wind direction coupled with the barometric information
may at times require knowledge of the previous wind direction to make an
accurate prediction.
This forecasting module uses the most detailed of the "Wind-Barometer"
tables as its guide. It produces a fairly accurate forecast when supplied
with the proper information. Test it against your weather station.
This module does not take into effect the altitude, prevailing winds, or
normal standard cyclical barometric changes.
Wind Chill:
This module computes what it really feels like outside to the average
person dressed in an average mannor. Wind has a profound effect upon the
effective temperature. Stronger winds make it appear to be much colder
and more harmful than light winds.
Wind chill calculations are most effective under 60 degrees and less effect
ive over 60 degrees. Use this calculation to see how "cold" it really is.
Temperature-Humidity Index:
This module calculates an index number which basically tells you the exact
opposite of Wind Chill; how uncomfortable it really is due to the effects
of heat and humidity. THI figures in excess of 92 are considered VERY
DANGEROUS. The internal interpretation page within the program tells more.
Heat Index:
This calculation is very similiar to the THI except that it calculates a
number that may be more understandable. Instead of producing just an index
number, it returns the actual temperature which it feels like. Temperature
readings in the 90's with high humidity actually make it feel like it is
over 150 degrees and extreme caution should while outdoors!
Dew Point:
The Dew Point module calculate the temperature at which, given no change in
barometric pressure, the air will become "saturated" and "dew" or conden-
sation would begin to form. Watch for a high dew point to indicate whether
or not to attempt observational astronomy (with dew, the lens will frost
over and fog may occur) as well as for a great number of other items.
Hint..when the dew point and the temperature are the same, the cloud base
is ground level. You're in them! And condensation of some form will occur.
~~~~~~~~~~~~~~~~~~~
Using The Modules...
************************************************************************
** This section has yet to be completed. Any amature meteorolgists **
** out there are more than welcome to help in this area. **
************************************************************************
~~~~~~~~~~~~~~~~~~~
Future Directions...
Given the amout of information which is already available from either the
input required for these modules and as a result of the modules themselves,
there are any number of routines which could now be implemented to better
take advantage of the data. Programs relating to predicted wind speed,
cloud formation, fog, etc...
Additionally, the forecasting module could be revised to take into account
some additional variables such as altitude, prevailing wind presence, the
normal daily cyclical movement of the barometer, etc. This could become
an additional subroutine which would let those interested in a more pro-
fessional forecast and knowledgable enough to utilize it continue, while
leaving the base program module informative and simple for those who wish
not to go on.
More detailed, immediate branching, subroutines could be added to better
explain and advise on the individual subroutines as has been attempted in
the THI and Heat Index modules.
A "Testing" routine could be entered to help guide those who would like to
test themselves and their weather knowledge by supplying just some of the
information and prompting for answers.
Your ideas and additions are welcome!
~~~~~~~~~~~~~~~~End Of Documentation~~~~~~~~~~~~~~~~
Pgm: Weather [ WX ] Ver. 5.1 Author: Phil Baughn
****************************************************