No need to apologise for the italics - they're a okay in my book.

I like how you start off with the main character commenting on the state of the weather, that was a good way to hook me in. The descriptions that accompany this piece are good, but what really makes this piece good is its flow.

I find that flow is important for flash fiction to keep me invested, and you certainly nailed flow down. Good work.

To satisfy my own curiosity:
Since you said this was written for English, can I ask how many marks the teacher gave you? You don't have to respond if you don't feel like it.

Good story.

A very touching story. I'm glad she came to terms about her brother's death.

~Sir Scott