Issued at 5:00 am WST on Monday 18 December 2017
before contracting southeastwards into the Bight. A ridge of high pressure will
develop over the south of the state in the wake of the low pressure system,
with a high pressure system moving into the Bight on Thursday.
Partly cloudy. Slight (30%) chance of a shower in the west in the morning.
Winds south to southwesterly 15 to 25 km/h tending south to southeasterly 15 to
20 km/h in the evening. Overnight temperatures falling to between 12 and 15
with daytime temperatures reaching the low to mid 20s.
Sunny. Winds easterly 15 to 25 km/h shifting south to southwesterly during the
day then tending south to southeasterly 15 to 20 km/h during the evening.
Overnight temperatures falling to between 11 and 15 with daytime temperatures
reaching around 30.
Mostly sunny. Winds easterly 15 to 20 km/h becoming light during the morning
then becoming southeast to southwesterly 15 to 25 km/h during the afternoon.
Overnight temperatures falling to around 17 with daytime temperatures reaching
29 to 36.