One singularly unsuccessful attempt at faking the weather occurred in Russia in June 2008. Air force planes were seeding clouds above Moscow to prevent rain spoiling a public holiday. However one of the sacks of cement failed to pulverise at the correct altitude, instead plummeting to earth and straight through the roof of a house, creating a hole of about 80-100cm. Nobody was injured, but according to Reuters the homeowner refused an offer of 50,000 roubles, saying she would prefer to sue for damages and compensation for moral suffering.
It has become common practice for the Russian air force to send up to 12 cargo planes into the skies above Moscow to seed clouds with silver iodide, liquid nitrogen and cement powder. Weather specialists said the cement's failure to turn to powder was the first such mistake in 20 years.