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20050325: Convective warning polygons



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Date: Fri, 25 Mar 2005 20:06:45 -0600 (CST)
From: Gilbert Sebenste <address@hidden>
To: address@hidden
Subject: Convective warning polygons
Message-ID: <address@hidden>
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Hello all,

I was just wondering if an upcoming version of McIDAS will handle the 
severe thunderstorm and tornado warnings that include a polygon
imbedded within the warning, which most accurately reflects which 
areas are threatened the most by the storm.

http://www.crh.noaa.gov/lot/newsletter/spring2005/index.htm#Polygon

Thw article above describes this in more detail.

*******************************************************************************
Gilbert Sebenste                                                     ********
(My opinions only!)                                                  ******
Staff Meteorologist, Northern Illinois University                      ****
E-mail: address@hidden                                  ***
web: http://weather.admin.niu.edu                                      **
Work phone: 815-753-5492                                                *
*******************************************************************************

Date: Mon, 28 Mar 2005 09:14:37 -0600
From: Russ Dengel <address@hidden>
To: Gilbert Sebenste <address@hidden>
CC: address@hidden, russdengel <address@hidden>
Subject: Re: Convective warning polygons
References: <address@hidden>

      I have a set of McIDAS applications that decode, list and plot 
Tornado Warning messages. The decoder reads the warning text and saves 
the direction, speed, observed location, warning counties and lat/lon 
polygon pairs.  The decoded information is stored as ADDE point data 
objects which can be plotted directly with PTDISP. The listing 
application (TORLIST) and plotting application (TORDISP) provide 
formatted output of these warnings. Here is an example of a warning 
decoded this AM

      http://cimss.ssec.wisc.edu/~russd/samples/TEST.GIF

     TORDISP is used to plot the Lat/Lon polygon region (black border 
with yellow outline) and the projected path is plotted as a white line 
segment.

     I noticed in the text of the linked document, that the polygons are 
described as a new feature. I have been decoding the Tornado Warning 
messages for the past 5 years and there have been lat/lon pairs included 
in nearly all of the warnings that I have seen. I'm wondering if the NWS 
intends to supply a separate polygon set in addition to the current text 
warning messages?
     

      Russell Dengel
      McIDAS development staff

Date: Mon, 28 Mar 2005 10:44:34 -0600
From: Russ Dengel <address@hidden>
To: Chris Herbster <address@hidden>,
        Tom Yoksas <address@hidden>
CC: Russ Dengel <address@hidden>
Subject: Re: Convective warning polygons

Chris,

     I will put all the pieces into the R&D section of the next McIDAS 
release.

         Applications:
             TORDEC - common language tornado warning decoder (keyin 
application)
             TORLIST - lists decoded Tornado Warning messages (ADDE 
application)
             TORDISP - plots decoded Tornado Warning messages )ADDE 
application)

         Data files
              DATOR - Tornado Warning MD file Scheme
              TORWARN.CORE - Tornado Warning application context file
              TORDEC.CFG - Tornado Warning decoder configuration file

     You should receive this through Unidata. (Tom is that right?)

Russ

PS - Say Hello to Fred Mosher for me :-)
            
Chris Herbster wrote:

> Russ,
>
> I didn't want to reply to the whole list, though perhaps I should have 
> if your intent was to make this available ....
>
> Is this an offer to make the code available to all, or is it already 
> available?  We'd love to take advantage of it if it exists for the 
> public.
>
> Thanks,
>
> Chris Herbster

Date: Mon, 28 Mar 2005 11:48:19 -0500
From: Chris Herbster <address@hidden>
To: Russ Dengel <address@hidden>
CC: Tom Yoksas <address@hidden>,
        Fred Mosher <address@hidden>
Subject: Re: Convective warning polygons

Russ,

This is great, thanks!

Hi Tom, see you in two weeks.

Fred, Russ says "Hi" (-:

Cheers,

CH
- -- 

 Dr. Christopher G. Herbster
 Associate Professor
 Director of ERAU Weather Center
 Applied Aviation Sciences
 Embry-Riddle Aeronautical Univ.
 600 S. Clyde Morris Blvd.
 Daytona Beach, FL 32114-3900
 
 386.226.6444 Office
 386.226.6446 Weather Center
 http://wx.erau.edu/

Date: Mon, 28 Mar 2005 13:53:05 -0600 (CST)
From: Gilbert Sebenste <address@hidden>
To: Russ Dengel <address@hidden>
cc: address@hidden
Subject: Re: Convective warning polygons

On Mon, 28 Mar 2005, Russ Dengel wrote:

>      I noticed in the text of the linked document, that the polygons are 
> described as a new feature. I have been decoding the Tornado Warning 
> messages for the past 5 years and there have been lat/lon pairs included 
> in nearly all of the warnings that I have seen. I'm wondering if the NWS 
> intends to supply a separate polygon set in addition to the current text 
> warning messages?

Yes they are, but the polygons are more refined now. As for supplying a 
separate polygon set, I don't know.

*******************************************************************************
Gilbert Sebenste                                                     ********
(My opinions only!)                                                  ******
Staff Meteorologist, Northern Illinois University                      ****
E-mail: address@hidden                                  ***
web: http://weather.admin.niu.edu                                      **
Work phone: 815-753-5492                                                *
*******************************************************************************

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