Trends are important to learn about, but the regular person would be well advised to prepare for emergencies in advance of the emergency.
Most of the stuff you listed is probably covered under general financial education like not going into debt for frivolous purchases or not gambling on investments you know nothing about.
Inclement weather is probably the most pressing thing to know about, but again, you should probably be prepared at home anyway so you're not affected by people clearing out the grocery stores.