For visually impaired readers whose screen readers won’t be able to read the graphic above, here’s the gist: The Northern Indiana office of the National Weather Service will conduct at “tweet up” tomorrow afternoon, during which it will use Twitter to send live updates on Halloween weather and answer questions from Twitter users. The tweet up will run from 2 p.m. to 4 p.m. October 31. To participate, use Twitter to follow @NWSIWX and include that tag in any questions you tweet.

If you don’t have a Twitter account, you can still read all the tweets using this Web link.