Category 4: Weather Related Hazards
HEAVY FOG AHEAD
HIGH WATER/FLOODING AHEAD
ICE ON BRIDGE AHEAD
ICE ON ROAD AHEAD
BLOWING DUST AHEAD
BLOWING SAND AHEAD
BLOWING SNOW WHITE OUT AHEAD
Category 5: Travel Information/Convenience I
REST AREA AHEAD
REST AREA WITH SERVICE AHEAD
24 HOUR FUEL SERVICE AHEAD
INSPECTION STATION OPEN
INSPECTION STATION CLOSED
REDUCE SPEED AREA AHEAD
SPEED LIMIT ENFORCED
HAZARDOUS MATERIALS EXIT AHEAD
CONGESTION AHEAD/EXPECT DELAY
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Operation