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.
Guernsey pet owners urged to take extra precautions during extreme heat
With record-breaking temperatures in Guernsey, the GSPCA has issued advice to prevent unnecessary animal suffering.
Guernsey's June temperature record falls two days in a row
Tuesday's 33.8°C was just 0.5 degree Celsius below the island's hottest ever recorded summer temperature.
The first ever Royal Visit to The Ecréhous
Her Royal Highness Sophie, Duchess of Edinburgh, made history today (23 June) by being the first member of the Royal Family to visit The Écréhous.
Guernsey's oldest pub is for sale
The Plough Inn has lost its claim to fame as it is now on the property market for £350,000.
Guernsey forecast to break all time heat record
Jersey Met predict it will hit 35°C in Guernsey today (23 June), after the June heat record was broken yesterday.
Guernsey hurdler celebrates UK title win with family trackside
It was a Father's Day to remember for Alastair Chalmers, who claimed his sixth British title just days after the birth of his son.
Guernsey set to break June heat record
Forecasters predict the temperature will climb to 34C by Tuesday (23 June).
Guernsey and Jersey to explore joint working on affordable housing
Executives from Andium Homes meet with members of Guernsey's Committee for Housing.
