EAS EAS Alert Codes and Message Structure 1 — Questions and Answers
Question 1: Which EAS event code is used for a Tornado Warning?
- TOW
- TOR (Correct answer)
- TWR
- TNW
Correct answer: TOR
TOR is the three-letter EAS event code assigned to Tornado Warning alerts issued by the National Weather Service.
Question 2: What does the EAS event code 'EAN' represent?
- Emergency Action Notification (national-level presidential alert) (Correct answer)
- Extreme Arctic Notice
- East Area Network test
- Emergency Amber Notification
Correct answer: Emergency Action Notification (national-level presidential alert)
EAN stands for Emergency Action Notification, the highest-priority EAS alert used for presidential addresses and national emergencies.
Question 3: How is the geographic area specified in a SAME EAS header?
- Using FIPS codes (Federal Information Processing Standard county codes) (Correct answer)
- Using GPS latitude/longitude coordinates
- Using postal ZIP codes
- Using NOAA weather zone numbers
Correct answer: Using FIPS codes (Federal Information Processing Standard county codes)
SAME headers use FIPS codes to identify the specific counties or county equivalents affected by an EAS alert.
Question 4: What is the maximum number of FIPS location codes that can be included in a single SAME EAS header?
- 31 (Correct answer)
- 10
- 50
- 100
Correct answer: 31
A SAME EAS header can include up to 31 FIPS location codes, allowing an alert to cover multiple counties in one transmission.
Question 5: What does the purge time field in a SAME EAS header indicate?
- The time period for which the alert is valid (Correct answer)
- The date the alert was first created
- The delay before the EAS device retransmits the message
- The time required to broadcast the full alert audio
Correct answer: The time period for which the alert is valid
The purge time (also called valid time or duration) in a SAME header specifies how long the alert should remain active before expiring.
Question 6: Which EAS event code is used specifically for a Flash Flood Warning?
- FFW (Correct answer)
- FLW
- FFE
- FLF
Correct answer: FFW
FFW is the EAS event code for Flash Flood Warning, indicating a dangerous and rapidly developing flood situation.
EAS EAS Alert Codes and Message Structure 1
Which EAS event code is used for a Tornado Warning?