What is a Watch?
A watch of any kind means you that severe or dangerous weather is possible. Watches are usually issued over the span of hours to days. You should take that time to go over your severe weather plan. Check to see if you have the essentials you would need to survive in the event things take a turn for the worst. See things to include in your preparedness plan here: ready.gov.
What is a warning?
A warning means that severe or dangerous weather is either occurring or about to occur very soon. Your severe weather plan check list should be done. You need to be prepared to take shelter, in some cases, immediately in order to protect your life.