Emergency Alert System (EAS) Event Codes
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Disaster Alert Systems and Services

disaster alert systems This section of our technical library presents articles written about Emergency Alert Systems and Disaster Recovery definitions, terms and related information.

The 911Broadcast emergency notification and alert service can deliver a large number of phone calls using a network of phone systems employing digital phone lines simultaneously. Should a disaster such as a snow storm, wild fire or flood hit your area, 911Broadcast systems can alert your community quickly providing specific instructions if an evacuation is required.

This service is available using our emergency broadcasting systems. If a dangerous chemical spill occurs in your community, you can target specific areas to call. If a severe snow storm hits your area, your community can be notified of school closings or event cancellations.


Contact DSC Today for a FREE analysis and quote and to learn more about our emergency notification systems and services.


Emergency Alert System (EAS) Event Codes

Reprint: NOAA's National Weather Service
Office of Climate, Water, and Weather Services


The Federal Communications Commission issued a Report and Order (R&O), effective May 16, 2002, amending the EAS rules. The change included adding numerous new civil emergency, weather and natural disaster event codes and NWS marine area location codes.

The complete list of EAS event codes (also known as NWR-SAME Codes) is shown below. The chart below is divided into two groups: Codes in use before and after June 30, 2004. NWR and the EAS use identical digital protocols. NWS used Weather Radio as its primary means to activate EAS.

Codes shown below as Operational were implemented on June 30, 2004. Older SAME-enabled receivers may display them as unknown codes, although they should still play the audio. Check your receiver's manual or the manufacturer's website for more information. If you do not receive the new codes, you may want to consider buying a newer model. You will continue to receive the event codes in effect before June 30, 2004.

EAS Event (NWR-SAME) Codes

Weather-Related Events
NWR-SAME Code
Status
Blizzard Warning
BZW
Operational
Coastal Flood Watch
CFA
* Operational *
Coastal Flood Warning
CFW
* Operational *
Dust Storm Warning
DSW
* Operational *
Flash Flood Watch
FFA
Operational
Flash Flood Warning
FFW
Operational
Flash Flood Statement
FFS
Operational
Flood Watch
FLA
Operational
Flood Warning
FLW
Operational
Flood Statement
FLS
Operational
High Wind Watch
HWA
Operational
High Wind Warning
HWW
Operational
Hurricane Watch
HUA
Operational
Hurricane Warning
HUW
Operational
Hurricane Statement
HLS
Operational
Severe Thunderstorm Watch
SVA
Operational
Severe Thunderstorm Warning
SVR
Operational
Severe Weather Statement
SVS
Operational
Special Marine Warning
SMW
* Operational *
Special Weather Statement
SPS
Operational
Tornado Watch
TOA
Operational
Tornado Warning
TOR
Operational
Tropical Storm Watch
TRA
* Operational *
Tropical Storm Warning
TRW
* Operational *
Tsunami Watch
TSA
Operational
Tsunami Warning
TSW
Operational
Winter Storm Watch
WSA
Operational
Winter Storm Warning
WSW
Operational
 
Non-Weather-Related Events
NWR-SAME Code
Status
National Codes-Required
Emergency Action Notification
EAN
Not currently implemented on NWR
Emergency Action Termination
EAT
Not currently implemented on NWR
National Information Center
NIC
Operational
State and Local Codes-Optional
Avalanche Watch
AVA
* Operational *
Avalanche Warning
AVW
* Operational *
Child Abduction Emergency
CAE
* Operational *
Civil Danger Warning
CDW
* Operational *
Civil Emergency Message
CEM
Operational
Earthquake Warning
EQW
* Operational *
Evacuation Immediate
EVI
Operational
Fire Warning
FRW
* Operational *
Hazardous Materials Warning
HMW
* Operational *
Law Enforcement Warning
LEW
* Operational *
Local Area Emergency
LAE
* Operational *
911 Telephone Outage Emergency
TOE
* Operational *
Nuclear Power Plant Warning
NUW
* Operational *
Radiological Hazard Warning
RHW
* Operational *
Shelter in Place Warning
SPW
* Operational *
Volcano Warning
VOW
* Operational *
Administrative Events
NWR-SAME Code
Status
Administrative Message
ADR
Operational
National Periodic Test
NPT
Not currently implemented on NWR
Network Message Notification
NMN
Not currently implemented on NWR
Practice/Demo Warning
DMO
Operational
Required Monthly Test
RMT
Operational
Required Weekly Test
RWT
Operational

Naming Convention for EAS Event Codes

The FCC Report and Order which became effective May 16, 2002, established naming conventions for EAS event codes. In most cases, and for all future codes to be approved, the third letter of all hazardous state and local event codes is limited to one of four letters:

  • "W" for WARNINGS
  • "A" for WATCHES
  • "E" for EMERGENCIES
  • "S" for STATEMENTS
Note: The existing event codes for Tornado Warning (TOR), Severe Thunderstorm Warning (SVR) and Evacuation Immediate (EVI) will not be changed to conform to this naming convention.
  • A WARNING is an event that alone poses a significant threat to public safety and/or property, probability of occurrence and location is high, and the onset time is relatively short.
  • A WATCH meets the classification of a warning, but either the onset time, probability of occurrence, or location is uncertain.
  • An EMERGENCY is an event that, by itself, would not kill or injure or do property damage, but indirectly may cause other things to happen that result in a hazard. For example, a major power or telephone loss in a large city alone is not a direct hazard, but disruption to other critical services could create a variety of conditions that could directly threaten public safety.
  • A STATEMENT is a message contaning follow up information to a warning, watch, or emergency





Severe Weather Warnings And Alerts Phone Service

civil alert severe weather warning Should a severe weather condition occur in your area, our phone services can help warn your community. With our emergency notification phone service, you can broadcast warning messages to thousands of households in your community, warning of catastrophic disasters including severe weather and storms.

Messages can be simultaneously delivered in just minutes using our network of phone systems and services. Pre-recorded warning messages can be played giving households information regarding the severe weather location and whether a community evacuation is planned or necessary. You can send a broadcast warning to specific neighborhoods or communities in the event of a severe weather storm and provide priority delivery of these messages to those nearest the severe weather disturbance. Multiple messages can be delivered to different members of the community based upon proximity to the weather alert. Calls can be directed to operators that are standing by to handle special individual emergencies. Messages can also be broadcast seeking volunteers or special assistance from emergency personnel.

Severe Weather Warning Other applications include warning residents when the danger of severe weather conditions is at a high level. Travel and activity restrictions can likewise be broadcast using this service.

Severe weather warning messages sent to households in this fashion can be simple warnings with specific or general instructions. If the community needs feedback from the call, an interactive response can be programmed into the message allowing the person to either acknowledge the call or to contact someone. Messages can vary based upon proximity to the event, with different degrees of broadcast warning and instructions.

To learn more about our severe weather and emergency response / disaster recovery phone service, please visit our Emergency Broadcast System web page.

Contact DSC Today for a FREE analysis and quote and to learn more about our emergency notification systems and services.