A period of rain and sleet is forecasted to turn to snow for a time tomorrow morning (21 November).
If it sticks, Jersey Met says 5mm of snow could be found in the upper parishes.
The alert calls for islanders to be cautious when out and about.
Temperatures are set to drop a couple degrees tomorrow too - with highs of 6 degrees expected.
The gov.je website forecasts it "feeling very cold", with strong F6 to F7 winds.
New woodland for Alderney's 80th Homecoming
Alderney will get a Royal Visit on 15 December and over the weekend a new area of woodland will be planted out.
Guernsey States 'in talks' with easyJet
Guernsey's Economic Development Committee has confirmed that it is in talks with 'a number of airlines' about island routes.
Guernsey's airline Aurigny takes on six new First Officers
Recruits are the first to come from a partnership between a flying academy, Norse Atlantic and Aurigny.
Call for more transparency over Guernsey Electricity's charges
Thousands complete a survey that calls for price and cost transparency at Guernsey Electricity.
Guernsey Police investigate 'unexplained death' in St Peter Port
Specialist officers are examining a property in Mill Street following an 'unexplained death'.
Senior Guernsey politician to stay on committee during police investigation
It has been confirmed that Deputy Gavin St Pier will continue as P&R committee Vice President and Treasury lead while a police investigation continues.
Iconic Guernsey restaurant to close before Christmas
Da Nello in the Pollet has been in business for 47 years but the owners are now retiring.
Protected status of Guernsey bunker changed by planners
The Planning Committee has reversed a decision made earlier this year is to give a bunker protected monument status.
