The last time I tried posting images to my blog the DoS prevented me but I will attempt to set it all out again today. …
As this slips around the continent, a stream of precipitatious weather preceding it joins with and pushes south from East Africa and runs directly into the continent at 60 degrees east.
This is a severish earthquake:
Paying no attention to the time frames the computers used throw out, just look at the NEIC chart listing for the next Mag 6 or so quake; there you will get your start date for the next tropical weather we are to expect.
Immediately on the chart following this quake:
This is a region of similar pressure, falling from 1016 to whatever, from the outside in. This is from Friday on but the time-scale is irrelevant compared to the signal given. (I am giving the picture as seen with the dates as shown so you can look at it yourself.)
What is interesting is that from the moment it is set up it intensifies the cyclone over the ice shelf at 180 to 140 west. And when that happens, the isobars stand away from the continent everywhere; there is no cyclone causing firm adherence:
Broadly speaking, there is a "col" of about 984mb from the Antarctic Peninsula to the place about 60 degrees east where the signal for the earthquake came from:
Outside this region, the cyclones seem to be barred from entering the storm core which is more normal here:
Further around the continent the isobars come closer to shore and all run parallel as much as they can.
This requires that the cyclones on the shore die away. Instead of climbing the ice and crossing the land, the meld into a giant glob of similar pressure surrounding the continent:
Thursday/Friday is the day after the next spell starts, the end of the thundery stuff but not the end to the wet:
19 Jun 15:02
27 Jun 03:30
3 Jul 18:52
There is more but I think I have said a mouthful for the moment.