[aprssig] US Weather forecast via APRS message

Martin Nile martin.nile at gmail.com
Fri Jan 22 11:23:20 EST 2016

Send feedback regarding WxBot directly to me.  (email address above.)


On Thu, Jan 21, 2016 at 6:35 PM, Max Harper <kg4pid at yahoo.com> wrote:

> Where would you like feedback sent to? I have an older Kenwood D7 that I
> can test with if needed.
> Max KG4PID
> ------------------------------
> *From:* Martin Nile via aprssig <aprssig at tapr.org>
> *To:* aprssig at tapr.org
> *Sent:* Thursday, January 21, 2016 6:03 PM
> *Subject:* [aprssig] US Weather forecast via APRS message
> I am in the process of working on a program which provides a US Weather
> forecast
> via APRS message. I have most of the kinks worked out and it is ready for
> testing
> by a larger group.
> Send a single character APRS message to KI6WJP and the program will
> respond with a
> brief forecast for your location.
> You can specify "where" and "when" you want the forecast.  If you wish a
> full forecast
> add the word "full" to your "where" and "when".  The full forecast is
> spread across
> multiple APRS message.  The default "brief" forecast usually fits within a
> single
> message.
> "where" is any APRS callsign/object, zipcode, grid, or decimal lat/lon as
> long as it is
> located in a place covered by the US National Weather Service.
> "when" is any day of the week with optional night.  I.e. Wednesday night
> The forecast is derived from the US National Weather Service point
> forecast.
> Usually the forecast is produced within 1 or 2 seconds, but during periods
> of
> heavy activity, the weather service can take 20 or 30 seconds.
> The latitude/longitude for the requested object is extracted from
> api.aprs.fi,
> As a result, anything that appears on aprs.fi is valid including
> CWOP stations and AIS ships.
> Here are some example forecast requests that can be sent to KI6WJP:
> Any message less than 3 characters
>     Returns a brief forecast for the current location of the sending
> station.
> Tomorrow 96067
>     Returns  tomorrow's forecast for Mount Shasta, CA
> Tonight
>     Returns the forecast for tonight at your current location
> Tuesday night full
>     Returns the Tuesday night full forecast at your current location.
> w1aw
>     Returns the current forecast for the location of station W1AW
> usna-1 Sunday
>     Returns the forecast for the Army Navy football game on Sunday.
>     (Assuming usna-1 is at the stadium)
> CN81uh
>     Returns the forecast for the center of maidenhead grid CN81uh
> 36.5786/-118.2920
>     Returns the forecast for the summit of Mount Whitney.
> Currently the program is running on a raspberry Pi on a home dsl internet
> connection.
> The program is single threaded and can handle a single forecast request at
> a time.
> Things are still in development and may break at any time.
> Obviously for this to work via RF, a transmit capable i-gate is necessary.
> Many thanks to Heikki for Ham::APRS::IS, Ham::APRS::FAP and api.aprs.fi
> that made
> this easy.
> For more information see: https://sites.google.com/site/ki6wjp/wxbot
> --
> Regards
> Martin Nile
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