What happens when it rains?

So it has been raining for three days here in Maine We a leaving for the Point in two weeks and im starting to worry a bit, as I never really thought about what happend in lousy weather.So, how bad does the weather have to get to close rides?

From Cedarpoint.com

Rides will close due to weather conditions, particularly rain, high winds and/or lightning. A specific answer as to which rides close or remain open is not possible because varying degrees of inclement weather cause different effects on different rides. Those rides affected the most are the roller coasters and the high rides. Cedar Point makes every effort to reopen the rides as quickly and safely as possible after the adverse weather conditions cease. Sorry, no rainchecks or refunds.

Generally, the following weather conditions will affect the listed rides and attractions:

HIGH WINDS - These rides MAY close depending on wind speed and direction: Gemini, Giant Wheel, Magnum XL-200, Mantis, maXair, Mean Streak, Millennium Force, Power Tower, Raptor, RipCord, Sky Ride, Skyhawk, Skyscraper, Snoopy Bounce, Space Spiral, Top Thrill Dragster , WindSeeker and Zoom Flume.
ANY PRECIPITATION - These rides WILL CLOSE: 4 x 4's, Challenge Raceway, Giant Wheel, Raptor, Top Thrill Dragster and Woodstock Express.
STEADY RAIN - All rides listed under ANY PRECIPITATION and the rides listed below will close: Calypso, Corkscrew, Disaster Transport, Gemini, Iron Dragon, Magnum XL-200, Mantis, Matterhorn, Maverick, Mean Streak, Millennium Force, Skyscraper and Snoopy Bounce.
HEAVY RAIN - All rides listed under ANY PRECIPITATION or STEADY RAIN and the rides listed below will close: Blue Streak, Junior Gemini, maXair, Mine Ride, Monster, Ocean Motion, Power Tower, Sky Ride, Skyhawk, Snake River Falls and Wicked Twister.

Why does Raptor close with any precipitation? Seems like it has got better on keeping the rides open. If I remember correctly they almost closed all the coasters when it started sprinkling after the Magnum incident in 07.

Most of the coasters will shut down or go down to 1/minimal train operation when it rains. The weather around the lake is pretty unpredictable though. The forecasts are usually pretty inaccurate, even up to the day before.

What was the Magnum incident you mentioned that happened in 07??

In 2007, One of Magnum's trains collided into the another train parked into the station. The accident was blamed on precipitation/ moisture from heavy storms. Any ride that has friction brakes has to go down into one train operation during precipitation.