Well at least it's spring and the temperature is in the teen's, Celsius....It'll be interesting to see the write up on this one - particularly how quickly they were able to get the aircraft on the ground.
Some sites quote a runway length of 7800 feet for Uralsk so they should be able to get the aircraft out with fuel for Europe/London - at a guess the "stripping out" may not be a weight issue, it could possibly because now that the fire bottles have been used the aircraft cannot be flown with items in the holds...