[Xastir] NWS Warning Maps

[Dale Seaburg]

On Jun 22, 2009, at 1:01 PM, Curt, WE7U wrote:

> On Sun, 21 Jun 2009, Dale Seaburg wrote:
>
>> As you can see in the first paragraph, I assumed from the 15  
>> minute update interval, that the get_NWSdata script would have to  
>> be run, too.
>
> No, as get_NWSdata just snags the weather alert shapefiles from NWS,
> not from Gerry's server.
>
> The weather alerts which we receive over INET or RF are short
> single-line APRS messages which specify zones to light up.  Those
> zones are then pulled from the previously-loaded fairly static
> Shapefiles that we get from NWS.
>
>
>> looked at the shape files, but perhaps they know when to get  
>> updates, and have the URL built-in to accomplish this.
>
> Nope.
>
>
>> If we're talking about county weather alert data, they need to be  
>> updated often during the bad weather, right?
>
> Yea, but those contain either lists of zones to light up that are in
> the NWS Shapefiles, or they contain polygons that get drawn in
> Xastir itself (nothing to do with Shapefiles in this last case).

OK, the lightbulb finally turned on.  And (to my embarrassment, it's  
probably documented in the wiki, which I just don't seem to have  
enough time to read through, or I forget to do so...) then when  
xastir fires up and the maps are loaded, the status line says  
"Loading Weather Alerts" or the like, it's getting the weather alert  
data from either INet or RF as you say.  I'll reserve my follow-on  
questions until I read the wiki about weather alerts.

Thanks,

73 - Dale.  KG5LT