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Adv
anced Oper
ation
Ad
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Additional Information
NWS Alert Descriptions
Event Code
Level
Default
Administrative message
Advisory
Off
Avalanche Watch
Watch
On
Avalanche Warning
Warning
On
Biological Hazard Warning
Warning
On*
Boil Water Warning
Warning
On
Blizzard Warning
Warning
On
Child Abduction Emergency
Advisory
On
Civil Danger Warning
Warning
On*
Civil Emergency Message
Warning
On*
Coastal Flood Watch
Watch
On
Coastal Flood Warning
Warning
On
Chemical Hazard Warning
Warning
On*
Contaminated Water Warning
Warning
On*
Dam Watch
Watch
On
Dam Break Warning
Warning
On*
Contagious Disease Warning
Warning
On*
Practice/Demo
Advisory
Off
Dust Storm Warning
Warning
On
Emergency Action Notification
Warning
On*
Emergency Action Termination
Advisory
On*
Earthquake Warning
Warning
On*
Immediate Evacuation
Warning
On*
Evacuation Watch
Watch
On
Food Contamination Warning
Warning
On*
Flash Flood Watch
Watch
On
Flash Flood Statement
Advisory
On
Flash Flood Warning
Warning
On
Flood Watch
Watch
On
Flood Statement
Advisory
On
