jsame v0.2.5

jsame

jsame is a JS library to decode EAS/SAME (Emergency Alert System/Specific Area Message Encoding) alert messages. These messages are primarily used by the National Weather Service for weather-related warnings. jsame will decode a demodulated message, filter by SAME (US/CA) and/or event code, provide readable object back.

PLESE DONT TRUST THIS CODE WITH YOUR LIFE... COMMON SENSE

Requirements

• NPM
• NodeJS
• Moment.js +2.18.0

Installation

$ npm install @maxwelldps/jsame

Usage

jsame can decode EAS messages diectly from multitmon, or in SAME format ZCZC-ORG-EEE-PSSCCC-PSSCCC+TTTT-JJJHHMM-LLLLLLLL-

jsame.decode(Message, List of EEE to exclude, List of FIPS to watch )

Example to watch for Lancatser County NE, and not exclude events.

jsame.decode("ZCZC-WXR-RWT-031109+0030-0771800-KOAX/NWS", [], ["031109"])

Exlude Required Weekly tests

jsame.decode("ZCZC-WXR-RWT-031109+0030-0771800-KOAX/NWS", ["RWT"])

Exlude Required Weekly tests, and Match state of NE

jsame.decode("ZCZC-WXR-RWT-031109+0030-0771800-KOAX/NWS", ["RWT"], ["031109"])

Example input

ZCZC-WXR-RWT-055027-055039-055047-055117-055131-055137-055139-055015-055071+0030-0771800-KMKX/NWS-

EAS: ZCZC-WXR-RWT-055027-055039-055047-055117-055131-055137-055139-055015-055071+0030-0771800-KMKX/NWS -

var jsame = require("./jsame.js"); 

Message = "ZCZC-WXR-RWT-055027-055039-055047-055117-055131-055137-055139-055015-055071+0030-0771800-KMKX/NWS-";

decodedMeassage = jsame.decode(Message);
console.log(decodedMeassage["MESSAGE"]);

Event Codes

This list includes current and proposed event codes.

An alert must match one of each specified alert type in order to be processed. If an alert type is omitted, any alert will match that type. In most cases, using only SAME codes to filter alerts will be the best option.

Output

Output is an object with the following

Sample output 1

"EAS: ZCZC-WXR-EWW-055027-055039-055047-055117-055131-055137-055139-055015-055071+0030-0771800-KOAX/NWS-" (same_decode(TEST_STRING2, "RWT", "DMO", "RMT", "055000"));

{ 
  "MESSAGE": "The National Weather Service in Omaha, NE has issued a Extreme Wind Warning valid until 1:30 PM for the following counties in Wisconsin: Calumet, Dodge, Fond du Lac, Green Lake, Manitowoc, Sheboygan, Washington, Waushara, Winnebago. (KOAX/NWS)",
  "ORG": "WXR",
  "EEE": "EWW",
  "PSSCCC_LIST":
   [ "055015",
     "055027",
     "055039",
     "055047",
     "055071",
     "055117",
     "055131",
     "055137",
     "055139" ],
  "TTTT": "0030",
  "JJJHHMM": "0771800",
  "STATION": "KOAX",
  "LLLLLLLL": "KOAX/NWS",
  "COUNTRY": "US",
  "LLLL-ORG": "KOAX-WXR",
  "organization": "National Weather Service",
  "location": "Omaha, NE ",
  "event": "Extreme Wind Warning",
  "type": "W",
  "start": "1:00 PM",
  "end": "1:30 PM",
  "length": 30,
  "seconds": 1800,
  "date": "Tuesday, March 17th 2020, 1:00:00 pm" 
}

Sample output 2

"ZCZC-CIV-LAE-000000+0030-0771800-KXYZ/FM-" (same_decode(TEST_STRING2, "RWT", "DMO", "RMT"));

{ 
  "MESSAGE": "The Civil Authorities in undefined have issued a Local Area Emergency valid until 1:30 PM for the following counties in Nebraska: ALL. (KXYZ/NWS)",
  "ORG": "CIV",
  "EEE": "LAE",
  "PSSCCC_LIST": [ "031000" ],
  "TTTT": "0030",
  "JJJHHMM": "0771800",
  "STATION": "KXYZ",
  "LLLLLLLL": "KXYZ/NWS",
  "COUNTRY": "US",
  "LLLL-ORG": "KXYZ-CIV",
  "organization": "Civil Authorities",
  "location": "undefined ",
  "event": "Local Area Emergency",
  "type": "E",
  "start": "1:00 PM",
  "end": "1:30 PM",
  "length": 30,
  "seconds": 1800,
  "date": "Tuesday, March 17th 2020, 1:00:00 pm"
}

Sample Text Output

The National Weather Service in Pleasant Hill, Missouri has issued a Required Weekly Test valid until 12:30 PM for the following counties in Kansas: Leavenworth, Wyandotte, Johnson, Miami, and for the following counties in Missouri: Clay, Platte, Jackson, Cass. (KEAX/NWS)

This experimental pagermon site is updated using jsame, pagermon, multimon-ng and a rtl-sdr dongle.

Known Issues

Credits

Thanks to dsame Copyright (c) 2016 Joseph W. Metcalf from which the code was adapted