National Weather Service United States Department of Commerce

Areas of Severe Thunderstorms and Excessive Rainfall through This Weekend

A multi-day thunderstorm and heavy rain event will impact the south-central U.S. this Memorial Day weekend. Severe thunderstorms may produce large hail, severe gusts, and a possible tornado or two across portions of the central and southern Plains through Monday. The threat for heavy to excessive rainfall and possible flash flooding will return to the south-central U.S., especially in the Ozarks. Read More >

National Weather Service Dissemination

National Program

NWWS Configuration

Weather.gov > National Weather Service Dissemination > NWWS Configuration


Configuration

USER REQUIREMENTS
  • NWWS SATELLITE RECEPTION HARDWARE
  • Satellite Dish 1.8m or larger
  • Low Noise Band (LNB) down converter
  • DVB-S2 compatible satellite receiver (NOVRA S300 or similar)
  • Ethernet, RF coaxial and CAT5 network cables as necessary
  • Windows - based PC
  • Minimum - 20GB storage and 3GB RAM
  • SBN/NOAAPORT Channel 201
  • NWWS SATELLITE SOFTWARE
  • Satellite receiver ingest SBN/NOAAPORT Channel 201
  • Product filter (WMO formatted messages)
  • Commercial software, or user developed.
  • User_ID and password are not required.
  • NWWS OPEN-INTERFACE INTERNET ACCESS (or with Satellite*)

* recommended configuration
  • User-ID and Password from https://www.weather.gov/dsb/nwws_oi_request
  • Commercial software, or 
  • User developed XMPP reader (Java, Pidgin, etc..)
  • Internet connection (see NWWS Issues if there are NWWS-OI connection problems)
  • User_ID and password are mandatory for NWWS-OI access.
     

 

NWS does not advocate one commercial hardware or software over another. These are user choices. The hardware and software identified are known to meet requirements for access and display of NWWS products and are intended as examples only.

 

 

System
 

IP Addresses

NWWS PRIMARY IP address: 140.90.59.197

NWWS BACKUP IP address: 140.90.113.240

NWWS-OI can be served by either of the two IP addresses.  

Users should make sure that their firewalls are open for both IP addresses, but should allow their DNS systems to determine which IP is the active server.
 

NOTE:  IP Address Change on March 2, 2021. 
 

 

Software
 

Pidgin Client
 

Pidgin v 2.13 with enable XMPP Console Plugin
(to send and receive raw XMPP stanzas)
 

Under Buddy List

Set up / Modify account:
 

BASIC TAB

  • Protocol: XMPP
  • Username: XXXXXXXXX (yours)
  • Domain: nwws-oi.weather.gov  Backup: nwws-oi-md.weather.gov
  • Resource: nwws
     
  • Password: XXXXXXXXXX (yours)
  • Remember password: check box
     

ADVANCED TAB

  • Connection Security: Use old-style SSL
  • Connect Port: 5223
     

Proxy Tab

  • Proxy Type: Use Global Proxy Settings
     
  • "SAVE"

Under Buddy List

  • Buddies
  • "Join Chat"
  • Room: NWWS
  • Server: conference.nwws-oi.weather.gov
  • Handle: optional (user nickname or reference)
  • Password: XXXXXXXX (yours)
     
  • "JOIN" - provides list of headers as they are entered and logged
     

Go back to Buddy List

  • Tools
  • Plugins
  • Add XMPP Console
     
  • Bottom of Tools "XMPP Console"
  • XMPP Console - provides a link to the stanzas that will require additional programming to read the message texts. (Brief view available in HELP: DeBug window)
     
 

 

Software

Mozilla Client

Mozilla Thunderbird  has the capability for CHAT. Use will allow only the message headers for issued weather information, alerts and warnings.

Mozilla Thunderbird version 91.2.1 and 91.3.0

Set-Up Account:


CHAT

  • Account: XXXXXXXXXX (user_ID@nwws-oi.weather.gov)
  • Room: nwws
  • Server: conference.nwws-oi.weather.gov
  • Nick: (optional nickname)
  • Password: XXXXXXXX (yours)
    (optional) Auto-join this Chat room

 

 

Software End User Notes

  • There is a single XMPP chatroom that has a single user inside the room that is able to talk.  This bot user emits a <message> stanza that contains a special payload that has the raw text included.  Here is an example message stanza:
     

<message to='enduser@server/laptop' type='groupchat' from='nwws@nwws-oi.weather.gov/nwws-oi'>

<body>KARX issues RR8 valid 2013-05-25T02:20:34Z</body>

<html xmlns='http://jabber.org/protocol/xhtml-im'>

<body xmlns='http://www.w3.org/1999/xhtml'>KARX issues RR8 valid 2013-05-25T02:20:34Z</body>

</html>

<x xmlns='nwws-oi' cccc='KARX' ttaaii='SRUS83' issue='2013-05-25T02:20:34Z' awipsid='RR8ARX' id='10313.6'>

111

SRUS83 KARX 250220

RR8ARX

:

: AUTOMATED GAUGE DATA COLLECTED FROM IOWA FLOOD CENTER

:

.A CDGI4 20130524 C DH2100/HGIRP 2.63 : MORGAN CREEK NEAR CEDAR RAPIDS

</x>

</message>
 

  • So if you are in the chatroom with a client that does not process this special <x> payload, you won’t see all the raw text included in the stanza.  The attributes on the <x> stanza are as follows:
     

    cccc

    Four character issuing center

    ttaaii

    The six character WMO product ID

    issue

    ISO_8601 datetime in UTC

    awipsid

    The six character AWIPS ID, sometimes called AFOS PIL.

    id

    This is an unique identifier, see below.


     

  • The id attribute on the <x> stanza is meant to help clients know if they are missing any products as they parse the stream.  The id contains two values loaded up into one and they are separated by a period. The first number is the UNIX process ID on the system running the ingest process.  The second number is a simple incremented sequence number for the product.


    When users join the chatroom, they are given a 60 message history.   These messages may not contain the <x> payload in the situation where the server is restarted.

 

 

Hardware
 

Satellite - Channel 201

  • Satellite dish larger than 1.8m (minimum) for better reception (4.2m would offer the best reception)
  • Low Noise Band (LNB) down converter (similar or better than Norsat 3220)
  • DVB-S2 satellite receiver (similar or better than Novra S300)
  • Personal Computer with minimum 20GB storage and 3GB RAM
  • Configure for SBN/NOAAPORT Channel 201 (NWWS products only) using

    G28 Configuration sheet
    SBN Configuration sheet