Water in cabin air vent?

TLDR: Drove through a decent sized puddle, turning left results in cabin air vent fan sounding like it is under water, currently small amounts of water leaking onto floor mats when turning left.

So, its raining a decent amount here in Boston, I drove through a decent sized puddle without being able to go around it because Boston traffic sucks. I noticed noise from my air vents that was never there before, sounded like a little squeaking. I took a left turn and it sounded like the fan became submerged. Took a right turn and it sounds perfectly normal. I've also noticed a very small amount of water on the floor mats appear after the drive. I checked beforehand and it was dry, so I suspect water got into the fan area from outside somehow.

The question is, how do I go and clear this out? Is it the "something stuck in AC drain so blow it out with air compressor" deal or something else?

 

Could be a possible cowl drain restriction. Not sure where they are located, but they are usually located in the on the corners of the cowl. Dirt, leaves, etc. can get in the past the upper panel and clog the drains..

 

I'll have to dig around and see if that's one of the causes.
Would you happen to know if there is another way to drain the water from inside?

 

You can get to the air intake box from under the hood, passenger side up by windshield. Think you need to pull a trim piece off to access. That’s where the water gets in, but not sure if there is a secondary place / compartment for water to sit once it’s got in. You access the cabin air filter through the back of the glove box, it’s all the same area your accessing. If you search for cabin air filter replacement you’ll find pics/vids on how to do it. That’s the place to look first.

Edit, here you go
https://m.youtube.com/watch?v=L9ANx-DH7BM

 

Definitely looks right, in that video I can see the fan. There must be some more space off to the left hand side where the water can slide to.
Maybe I can yank that out and shop vac the water out, who knows.

 

Having the same water in a fan noise on left turns. My guess is intake drains are plugged with tree puke. Will update if i i figure it out.

 

Funny enough, all I did was park with the engine facing downhill and it drained out in a day.

 

This morning I shoved a probe up the air conditioning condensate drain. (It's a little rubber hose coming out of the firewall just over the passenger frame rail in the engine bay) About 250 mL of water came out as soon as I removed the probe. Ran the heater and fan at full blast for a while to dry everything out. Made a hard left turn and there was no more wooshing noise.

I also dumped water into the air intake at the exterior bottom of the windshield just to be sure. All the water drained right through behind the front wheel wells. Seems it was all just a plugged AC drain.

 

Sweet, thanks for the update on that. Good to know.