I'm not sure if your map above is the weather map for the 17th June but there is a high over the middle of the state and shark bay. But can't see how this early map has any relevance to JC's disappearance. My view is the car went into the ocean early Wed morning with it's lights still on when found. I am trying to get the information about the car being found in writing.
I'm just trying to compare apples with apples with the sea and swell conditions with wind direction and strength at the time in June 1988 with close as possible images of the same sea, swell wind direction and strength. The best indication is the image of the recovered car to show the ocean conditions IMO.
Source: The West Australian Saturday 18th June 1988
Sorry this was as good as it got with my picture taking. It's definitely not a storm, you posted above with your weather map quote metic Seen here in newspaper, 17th june , a broad front as north as shark bay .
It was a high pressure ridge over shark bay and still around 1012 over Perth which is still high.
The West Australian Saturday 18[SUP]th[/SUP] June 1988: Morning showers. Outlook fine. Temp 14 20.
A high pressure ridge was located across the centre of the continent and was producing fine clear conditions with easterly winds in the northern half. Broad frontal cloud band should produce further showers in the southwest. However, these should contract to the lower southwest and coastal parts.
Extended forecast
As the high pressure ridge moves further southwards a return to fine conditions in inland areas should result by this afternoon. Coastal regions should experience isolated showers early this morning. Another weak front should pass near the southwest corner tomorrow, but showers associated with this system should be confined to the far southwest coast.
IC : "it's definitely not a storm"
Rsbm..
IC: "there is a high over the middle of the state and shark bay.
But can't see how this early map has any relevance to JC's disappearance."
Rsbm..
IC:"can't see how this early map has any relevance to JC's disappearance."
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Even though you have debated the weather details for 6 months and admit you cant see the relevance to JCs disappearance you just keep arguing for the fun of it ? ? ?
Global weather models assume an average Mean Sea Level Pressure of 1013hPa
So your wrong iC , 1012 hpa is a low pressure not a high .
My weather analysis is for cottesloe beach not Shark Bay or Australias North .
I have explained why i researched it , repeated it multiple times .
The minor details, they support the swell buoy statistics which say 2 major swells hit the coast.
On the 17th and 19th june .
Seen here :
Thats the biggest factor of this researching .
All reports have the wind blowing onshore
In the days leading up to the 20th june .
( Affects the tide )
When low pressure systems move over a region, the sea level rises by a relative amount, while high pressure systems push down on the ocean, creating a drop in sea level.
This is called the inverse barometer effect.
One factor that effects the sea level is the wind.
If the coast is under a persistent strong onshore wind, increased sea levels are observed and this is called wind setup.
I said long ago, about the beach conditions, that tides would have been "higher than predicted" , in the days before the 20th .
Due to wind and swell pushing waves up the beaches.