The poem catches a small, familiar moment: dinner is over, the news comes on, and the calm we expected to settle over the evening never arrives. The phrase "beyond all expectation of ease" suggests the speaker had hoped to relax and now finds that hope pushed out of reach.
The title is an old saying about making a big fuss over something trivial. Here the poem seems to turn it around. A "furious storm" sits "in a hole," which could be read as a small, cramped space, like the teapot of the title. That might be the television, or the speaker's own head, where the world's troubles get squeezed in and keep raging. The poem doesn't say which, and that openness is part of its charm.
The mood is uneasy and tense, but also a little wry. With so few words, the poem leaves a lot of silence around the storm, which makes the disturbance feel even louder.