Depending on your application, and how well you have, or haven't prepared it completely depends on how long it will take. I've seen spouse visa's go through within a day, two days, a week, maybe two, all the way up to 6 months. If you put everything together that was needed for the application, then it should be speedy.
Remember, you're anxious and want a response ASAP, which is completely reasonable, who wouldn't want to know whether or not they've been accepted for a spouse visa? But also, they have to process it, review it, process it some more, review a bit more, and so on and so forth. I would sit back and be patient until you hear something. The storm may have set them back a bit depending on them, you should have been given a tracking label when you sent your mail in, you can use that tracking number at this link :
https://tools.usps.com/go/TrackConfirmAction_inputJust googled another site, if you have a number you could use it.
https://www.visainfoservices.com/pages/TrackYourApplication.aspx?Just check around, it's available online for sure, otherwise just sit tight and hope for the best.
Good luck!