Bosnia and Herzegovena.
Spreading North as far as I can tell.
Vis in the Split area at sea level is around 1km
I flew from Tivat to Mali Losinj on the 6th and visibility was very bad, I have never seen it like this. Metar at Brac was 3km and Split 6km because of smoke. From 0 to 6000 ft the view was like this:

Higher-up the visibility was better (picture at 10.000ft), but you could clearly see and smell the smoke. When passing Zadar, the smoke was gone.

If nothing N of Zadar, that’s OK.
Got the mandatory French ATC strike CTOT:
Departure aerodrome: EGKA
Destination aerodrome: LDLO
Estimated off block time (EOBT): 2026-09-07 07:30Z
Slot time (CTOT): 0824Z
The slot is due to the following regulations:
- ZHTMA07M
- LFSBM07
The following cause was given:
- enroute phase: ATC capacity
That is a >1hr delay.
Looking at wx over the Alps, TS building up nicely. Trip cancelled. Too many factors adding up. Very sorry to the others!
Looking at my cancel decision restrospectively, today’s wx:
METAR LDPL 100600Z 11006KT CAVOK 22/19 Q1011 BECMG 11010KT TEMPO TSRA FEW040CB
TAF LDPL 100525Z 1006/1106 11010KT 9999 SCT030 TX24/1012Z TN17/1104Z
PROB40
TEMPO 1007/1010 VRB15G25KT TSRA FEW040CB
TEMPO 1014/1103 VRB20G35KT 3000 +TSRA BKN010 BKN020CB
TEMPO 1016/1102 05014KT


so pretty much as forecast by ECMWF and – unusually – all the other sources (except GFS) for the preceeding 5 days. But – as is common with convective wx – you can also see the route out of there, towards N Italy.
Glad I didn’t try to go – I would have been stuck there until this lot went away.