I did a search to some old HF-Fax images, received back in 2001-2002 where the Sun was more kind to us offering more sunspots! I found some similar images, of better quality, which resemble the ones I've posted earlier. The service's logo is visible, and I think it reads "UZHYMET". So it must be Uzbekistan. I'll show you my older images later, and ask you if I'm right. Here is a link to the Weather Service web page. Still I haven't found more info about fax transmissions...
First, I believe a transmission was on air commencing earlier than ~1359z, but it was under heavy QRN. A series of images followed, with slightly different timing than the previous days.
There was also a transmission at 1801z, but I was listening to G11 of course!
Here are the old pictures. Definitely then the conditions were better, despite being received in a more noisy location and with Sangean's 7 meter random wire antenna!
I have uploaded them full-sized so you can read the labels more easily! Unfortunately no frequency details available. I was novice then and underestimated the value of a good logbook! But it is obvious that the conditions were much better back in 2001.