Monday night's presumed on and off light showers turned into heavy rain during rush hour, flooding Van Ness municipal station from the backed up drainage on the streets above, according to San Francisco Municipal Transportation Agency's spokesperson.

"With the large amount of rain all at once like a flash flood, the drainage wasn't working and the water flooded into the station, down the stairs and into the actual station," said SFMTA spokeswoman Kristen Holland.

Muni riders were stuck on their trains as the Muni operators tried to direct the cars past Van Ness and onto the next stations.

"Van Ness is still closed and blocked off and trains will pass the station until we clean it up, the clean up is presumed to be within the next hour or two," Holland said.

Frequent commuter Sean Hall, a boxing instructor, rode the M line to work and encountered this unexpected delay, causing him to miss an hour of work.

"I was on the M train for 35 minutes stuck at Forest Hill station and the driver was saying that "were having hold ups due to the rain," Hall said.

Muni riders all suffered from the delay in their own personal way.

"I was shopping at the mall and had to take the Muni back to State today," said SF State junior Ariana Razzato. "It took me 2 hours, I'm freaken pissed off."

Riders are hoping that this issue is solved by tomorrow before the morning rush hour.

"I have work at 6 a.m. and I don't want to ride the Muni for another hour and 15 minutes when it usually takes me 45 minutes," Hall said.

Muni will be working until the problem is cleared up completely with hopes that this problem never occurs again Holland said.

"I've worked for Muni for four and a half years and I have not seen or heard of this kind of thing ever happening, this flooding was not from the tunnels but from the streets," Holland said.