A cold front passing through the southwest of WA during later next week, has a chance of bringing a burst of showers and gusty winds to the region heading into next weekend.
A warm northwest airstream will turn cooler westerly during next weekend with the passage of the system, clearing out the well above average temperatures.
Showers may be heavy at times about the far southwest of the state, where 30mm may fall.
Light rainfall may develop through inland areas as the band weakens as it heads east.
Canadian Model has a reasonable band of shower moving through, more productive for inland areas.
Euro showing a more concentrated area of showers for southwest Australia with the blocking pattern in the east, not as pronounced in latest data
GFS not as interested - however I am inclined to go with the Euro who has been consistent on this frontal passage
A middle level cloud band with a little rain may develop over the interior as the front rolls through the southwest of the state. With the air so dry further north and east, rainfall totals will be light and patchy and mostly less than 2mm. That activity may vanish in coming runs, but if the blocking pattern in the east does resolve, we could see numbers pick up.
This system will moderate the hot April weather that is expected this week. This will likely be the last burst of hot weather for the season.
Image - Rainfall developing from Thursday or Friday.