This is what the sky looked like a couple of afternoons ago--at least part of the sky. To get the full effect you'd need to take the darkest spot and extend it a fair bit.
This afternoon's forecast is for gale force winds, rain, hail and thunder, but so far we've only had blue sky with a few clouds and a shower or two. I mean to get out in the garden this afternoon and start pulling up some weeds. That is, if the forecast is wrong! Meanwhile I'm doing a bit of cleaning up inside. Failing that, there's always plenty of spinning and weaving to do and I have some merino to wash. My challenge for later this week is to see whether I can spin this fleece finely and evenly enough to use it for a warp.