Call, text photos, or send the short form — whichever suits. Storm emergencies should always call.
Your town, roughly how big the tree is, what's near it, and what outcome you want — gone, pruned, ground out, or just looked at. Photos of the tree from a couple of angles speed everything up; text them after you call. If an inspector or insurer set a deadline, lead with the date.
Prefer typing? The form goes to the same place and gets answered within one business day, usually much sooner.