[Xastir] Severe WX polygons?

[Rick Green]

>From time to time, I see yellow polygons showing up on my xastir display. 
These seem to happen during times of unstable weather, and they tend to 
have the SW-NE general orientation of most of the storm alerts in this 
neighborhood.
   They seem like chicken little crying out, telling me to be very afraid, 
without telling me why.  I try to select 'station info' for every station 
within the polygon, but nowhere can I find out who is doing the crying, 
and a link to the underlying NWS report that prompted the alert.

Can someone tell me how I can 'drill down' and get more information about 
these polygons, or failing that, suppress their display altogether?

-- 
Rick Green, N8BJX

"Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety."
                                   -Benjamin Franklin