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) |
