A flood is rated by the rate of discharge of the water. This is then used to calculate the chance of it occurring in any given year. For example, if a flood has a 1 in 100 chance of occurring in a given year it is called a 100 year floor. Note that this does not mean such a flood will occur only once every 100 years .
Flood Tide - 1913 II is rated/received certificates of: UK:U
The Ice Flood - 1926 is rated/received certificates of: USA:Passed (National Board of Review)
Flood Tide - 1958 is rated/received certificates of: Finland:K-12 Sweden:Btl USA:Approved (PCA #16619)
It comes out on September 14, 2010. It's probably rated Mfor Mature (17+) but it might get rated T for Teen(13+) because the Flood is the MAIN reason Halo got rated M in the known Halo Canon The Flood weren't seen on the planet Halo Reach takes place...
Alias - 2001 Before the Flood 4-22 is rated/received certificates of: Netherlands:12
The Young Ones - 1982 Flood 1-6 is rated/received certificates of: UK:PG (video rating) (1988)
Agatha Christie's Poirot - 1989 Taken at the Flood 10-4 is rated/received certificates of: Australia:M
Nature's Great Events - 2009 The Great Flood 1-5 is rated/received certificates of: Australia:G
Killer Flood The Day the Dam Broke - 2003 TV is rated/received certificates of: Netherlands:12 UK:PG
Thomas the Tank Engine and Friends - 1984 Toby and the Flood 5-10 is rated/received certificates of: Australia:G
Brotherhood - 2006 Down in the Flood 35-6 2-2 is rated/received certificates of: Australia:M USA:TV-MA
Grey's Anatomy - 2005 Here Comes the Flood 5-3 is rated/received certificates of: Hungary:16 USA:TV-14