Upon Janet's formation east of the Windward Islands, the Weather Bureau office in San Juan, Puerto Rico advised small craft to remain in port and vessels in the path of the developing storm to exercise caution.
The Weather Bureau first began cautioning areas of Central America at 1600 UTC on September 26, advising people in areas of northeast Nicaragua and Honduras to take precautionary measures, along with all vessels and small craft in the Gulf of Honduras south to Cabo Gracias a Dios.