Michigan Event Codes
The following tables show the only event codes to be used in Michigan by anyone
for any purpose. It is recommended that this entire list be pre-set into your decoder.
Event |
Code |
Avalanche Watch |
AVA |
Avalanche Warning |
AVW |
Blizzard Warning |
BZW |
Child Abduction Emergency |
CAE |
Civil Danger Warning |
CDW |
Civil Emergency Message |
CEM (i) |
Coastal Flood Watch |
CFA |
Coastal Flood Warning |
CFW |
Practice / Demo Warning |
DMO |
Dust Storm Warning |
DSW |
Emergency Action Notification |
EAN (ii) |
Emergency Action Termination |
EAT (ii) |
Evacuate Immediate |
EVI (i) |
Earthquake Warning |
EQW (i) |
Flash Flood Watch |
FFA |
Flash Flood Warning |
FFW (i) |
Flash Flood Statement |
FFS |
Flood Watch |
FLA |
Flood Warning |
FLW |
Flood Statement |
FLS |
Fire Warning |
FRW |
Hazardous Material Warning |
HMW |
High Wind Watch |
HWA |
High Wind Warning |
HWW |
Local Area Emergency |
LAE (i) |
Law Enforcement Warning |
LEW |
National Information Center |
NIC |
Network Message Notification |
NMN |
National Periodic Test |
NPT |
Nuclear Power Plant Warning |
NUW |
Radiological Hazard Warning |
RHW |
Required Monthly Test |
RMT |
Required Weekly Test |
RWT |
Special Marine Warning |
SMW |
Shelter In Place Warning |
SPW |
Severe Thunderstorm Watch |
SVA |
Severe Thunderstorm Warning |
SVR (i) |
Tornado Watch |
TOA |
911 Telephone Outage Emergency |
TOE |
Tornado Warning |
TOR (i) |
Tropical Storm Watch |
TRA |
Tropical Storm Warning |
TRW |
Volcano Warning |
VOW |
Winter Storm Watch |
WSA |
Winter Storm Warning |
WSW |
Event |
Code |
Closed Circuit Test |
CCT |
Fog Warning |
FOW |
Gas Leak Emergency |
GLE (i) |
Icy Road Warning |
IRW |
Industrial Plant Emergency |
IPE (i) |
Law Enforcement Emergency |
LEE (i) |
Marine Warning |
MRW |
Military Emergency |
MLE |
Nuclear Power Plant Emergency |
NPE (i) |
Radiological Emergency |
RDE (i) |
School Closing Emergency |
SCE |
Shelter in Place Advisory |
SIP |
State Emergency Test |
SET |
State Emergency |
STE (i) |
Toxic Spill Emergency |
TSE (i) |