sounds like there could be a plug knocked out of the firewall on the passengers side which would allow water to enter when you hit some puddles and splashed up
There is obviously a leak in either the firewall/cowl area or the window seal.
It could be a door seal or more likely the windshield is leaking.
On my 82 280D I found the Sun roof leaked. ater resealing in. no more water.
"I have a 2003 Ford Explorer, the original owner. When it rains, the passenger side carpeting gets soaked. What causes this? I do have a moon roof."
I had the same issue with a 2001 Alero and the Oldsmobile repair shop installed some sort of deflector inside of the door. Not sure what or where exactly but that is what they told me.
it dosent enter well sort of it starts at the top of a mountain. It rains and makes a channel(a path where water flows) then after it rains then it flows through the same path over and over.
Seals of the windscreen can be broken. If this is the case, whole windscreen needs to be replaced. Check by pouring water along the seals of the windscreen, you should be able to check if the water is trickling through into the floor of the car.
Are you running the air conditioner? If the drain line is plugged, it will leak water (condensation) onto the passenger side floor.
They plant their crops on the floor of the canyon because when it rains the water forms into the sand and canyons and also to collect flood water.
There are details you didn't give us.If your washroom floor drain only clogs when it rains, that may be a feature, not a bug. There are backflow traps that can be installed in floor drains to keep them from backing up and getting sewer water all over the floor. If your washroom floor is in the basement, the fact that it's clogging when it rains may be saving you from a big, nasty cleanup job.
My sons car had this same issue, all I had to do to fix it was to blow the drain tubes out for the sun roof, very easy to do.
One reason your floorboard is wet after it rains is that there may be rust holes in the floor or the floor pans are rusted out. A leak in the windshield seal may also be the cause of wet floorboards. Bad door seals or window seals can allow water to soak the floorboards when it rains.