[UPDATE BELOW] For those of you who somehow managed to miss that harrowing FLASH FLOOD emergency alert about an hour ago, it's raining very hard outside right now. This apocalyptic rainstorm is expected to last until later this afternoon, but it appears it's already too much for Penn Station, which just closed its main entrance at 7th Avenue thanks to flooding. Perhaps the rain will at least wash away the sewage?

Indeed, it appears Penn Station is having a tough week:

Penn Station isn't the only part of the city suffering in this rainstorm. Social media reports point to flooding all over town:

DUMBO is underwater, RIP DUMBO.

Gowanus is also a goner:

And though there don't appear to be any subway changes specific to the storm, there are delays on the A,C and E trains thanks to switch problems at Canal Street. Note that the subway stations themselves do not seem particularly floodproof:

Oh look, flooding. #rainraingoaway #subway #soaked #drenched #nyc #flashflood #mta #goingyourway

A post shared by John Simpson (@simpsonjohnb) on

The Flash Flood warning will last until 4:30 p.m., so please try to stay inside until then if possible.

Update 1:50 p.m.: The NYPD says 12th Avenue is flooded from West 23rd to West 34th Streets, and they've temporarily closed the stretch. Indeed, the flooding is real:

Update 2:15 p.m.: Things aren't looking pretty on Hamilton Avenue in Gowanus, where some bridge supports appear to have crumbled.

De Blasio says stay dry!

Update 2:27 p.m.: The good news is, Madame Tussauds is safe.

Update 2:36 p.m.: Scenes from Morningside Heights:

Meanwhile, it appears the very expensive, and quite new WTC Oculus is leaking:

We contacted Port Authority for more information and will update if/when we hear back.

Update 2:48 p.m.: Now there's reportedly a manhole fire on 3rd Avenue and 42nd Street:

And potentially another one on 62nd and Broadway:

Update 3:20 p.m. Penn Station's main entrance is now open, but NJ Transit says flooding knocked out two of its tracks at 7th Avenue.

The city Office of Emergency Management says to expect heavy traffic delays citywide thanks to flooding.

Meanwhile, it looks like the West Side Highway has reopened: