Issued by the Jersey Meteorological Department at 4pm Tuesday, 19 September 2017 for the period ending 7pm Thursday.
At 1pm, a ridge of high pressure from the Azores to southern England, expected to drift southeast. Low 1006mb, to the west of Ireland, expected to move north and deepen.
Forecast from 7pm Tuesday to 7pm Wednesday.
Forecast: Risk of a shower.
Wind: Westerly 2 to 4, backing southwest 4 early morning, occasionally 5 in the north and west of the area by midday.
Visbility: Good or very good, perhaps occasionally moderate.
Sea State: Slight, occasionally moderate in the north and west by late afternoon.
Sea Swell: 2 to 3 feet in the west of the area until early morning.
Outlook from 7pm Wednesday to 7pm Thursday.
Forecast: Outbreaks of rain spreading in from the west in the morning, clearing in the west of the area late afternoon.
Wind: Southwest to south 4 to 5, perhaps 6 mid Channel by midnight, decreasing 3 to 5 in the morning, veering west in the afternoon.
Visbility: Good, occasionally moderate to poor in rain.
Sea State: Slight to moderate with a low swell.