RE: watch/warning updates

Robert,

>Just to clarify, I was talking about the updates to the initial
watches...the >WOU/WCN bulletins...etc.
>    Is GEMPAK and/or McIDAS capable of drawing the NWS polygons of
> updates watch/warning areas?  I know GEMPAK has a decoder, but I never
> could get it to draw the polygon defined by that lat/lon points in the
> update using the standard GEMPAK tools.
> 

If you have a specific question regarding pqact entries for dcwcn,
dcwou, or dcwcp 
and or displaying the results in gpmap or nmap2, I can help you with
those
as well as if you can provide specific instances of what you are
missing/expecting to display.

Regarding the status lines for the initial watch boxes which GEMPAK
can draw in GPMAP/NMAP2 using the WATCH parameter, such as:
http://www.unidata.ucar.edu/staff/chiz/gifs/statuslines.gif
the dcwtch decoder is handling the update based on the WOUS20 KWNS
bulletin lines such as:
WOUS20 KWNS 101851
WWASPC
SPC WW-A 101855
TXZ000-CWZ000-101940-

STATUS REPORT ON WW 822

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 ENE VCT
TO 20 NW PSX TO 30 W LBX TO 15 SW HOU TO 30 NNE HOU.

That is different than the polygon points such as Russ mentioned in the
tornado warning bulletin.

 The WOU and WCN bulletins that you mentioned do not have the lat/lon
pairs at the end, but rather use the VTEC /UGC lines eg WOUS6x KWNS:

TORNADO WATCH 822 REMAINS IN EFFECT UNTIL 700 PM CDT FOR THE
FOLLOWING LOCATIONS
TXC039-057-071-157-167-199-201-239-245-291-321-361-469-481-
110000-
/O.CON.KWNS.TO.A.0822.000000T0000Z-061011T0000Z/

GEMPAK uses the bounds tables for the counties to draw these regions in the WOU 
parameter.
You can draw the counties separately, or the UNION of the counties, such as is 
shown in the
composite of WATCH & WOU here:
http://www.unidata.ucar.edu/staff/chiz/gifs/watch_wou.gif

The dcwcp watch corner point decoder is capable of handling complex polygons 
for the corner points, but at the moment, 
these bulletins are only using 4 points (unlike the tornado warning that Russ 
showed which contains greater than 4 points). 

There is some overlap currently in the watch outline and update bulletins which 
might be
somewhat confusing as well since you can gather some information from more than 
one bulletin ID.

Steve Chiswell
Unidata User Support



On Mon, 2006-10-16 at 15:38 -0500, Robert Mullenax wrote:
> Just to clarify, I was talking about the updates to the initial
> watches...the WOU/WCN bulletins...etc.
> 
> 
> 
> 
> -----Original Message-----
> From: Fingerhut, William A @ LSC
> [mailto:address@hidden]
> Sent: Mon 10/16/2006 11:53 AM
> To: Robert Mullenax; address@hidden;
> address@hidden
> Subject: RE: watch/warning updates
> 
> The Mcidas command WWDISP should do this.
> 
> The IDV will do some also.
> 
> Bill
> 
> 
> < Bill Fingerhut, Professor           PHONE: 802-626-6257 >
> < Meteorology Dept                    FAX:   802-626-9770 >
> < Lyndon State College                                    >
> < Lyndonville, Vt 05851                                   >
> <                                                         >
> < EMAIL:     address@hidden            >
> <            address@hidden                  >
> < WWW:       http://apollo.lsc.vsc.edu/                   >
> <                                                         >
> < disclaimer: I know nothing - I only work here.          >
> 
>         -----Original Message-----
>         From: address@hidden
> [mailto:address@hidden] On Behalf Of Robert Mullenax
>         Sent: Monday, October 16, 2006 11:40 AM
>         To: address@hidden; address@hidden
>         Subject: watch/warning updates
>        
>        
> 
> 
>         Is GEMPAK and/or McIDAS capable of drawing the NWS polygons of
> updates watch/warning areas?  I know GEMPAK has a decoder, but I never
> could get it to draw the polygon defined by that lat/lon points in the
> update using the standard GEMPAK tools.
>        
>         Thanks,
>         Robert Mullenax
>         CSBF/NMSU/PSL
>        
> 
> 
> 
> 
-- 
Steve Chiswell <address@hidden>
Unidata