This page contains trivia for "Two Days Before the Day After Tomorrow". Remember, trivia must be factual, provable, and it is always best to cite your source for not-so-obvious trivia. If you would like to dispute a trivia point, please discuss it in the article comments.
The line "George Bush doesn't care about beavers" from one of the townspeople is a reference to a claim made by rapper Kanye West regarding President George W. Bush and his slow response to the hurricane. While presenting during the live broadcast of A Concert for Hurricane Relief on NBC, West went off script and into a rant about the media's portrayal of blacks in the aftermath of Hurricane Katrina, followed by the claim that "George Bush doesn't care about black people." 
A few white people and one black person can be seen standing on their roofs in Beaverton, but when the Army helicopters arrives, they only rescue the white residents. This may be a reference to accusations of racism by the Bush Administration, as many of the poor black residents who remained in New Orleans were stranded on their roofs for days while waiting for military helicopters to rescue them. 
The townspeople blaming global warming, George Bush, communists, Chinese radicals, terrorists, and Al-Qaeda for the flood references the shifting of blame for the disaster and the slow response that followed on federal, state and local agencies, as blame was shifted between President Bush, FEMA Director Micahel Brown, Louisiana Governor Kathleen Blanco and New Orleans Mayor Ray Nagin. 
This episode premiered on Trey Parker's 36th birthday; October 19, 2005.
The Crab People theme plays in the background after they are accused of being responsible for the flood, and several people looking around for the source of the music, implying it could be heard by the characters and not just the audience.
This is one of the few episodes where Cartman and Stan are joined together and primary focus without Kyle, Kenny, Butters or another friend.
Randy Marsh states that the temperature outside will fall to over 70 million degrees below zero. It's obvious that this is absurd, but it's also against the laws of physics. The lowest temperature possible is −273.15 degrees Celsius.
The claim that one of the last stages of hypothermia is a feeling of being too hot is a reference to a real phenomenon known as "Paradoxical Undressing.”
Cartman claims to have an uncle Roy at the start of the episode. However, Stan has already met all of Cartman's extended family in "Merry Christmas Charlie Manson!". In fact after they crash the dam and Stan tells them not to panic and tell his Uncle Roy, Cartman admits he doesn't have an Uncle Roy and the boat is just "some guy's boat I knew about!"
One of Mrs. Garrison's breasts is damaged in this episode and leaks its contents. The damage done to the breast can be seen again in "Go God Go", where one of her boobs is smaller than the other.