Watch vs. Warning
A watch means conditions are right. That's the time to monitor the weather and check your preparations. If you live in or near the designated area, be especially alert when combinations of watches and warnings are issued at the same time.
A warning means now it's happening. It's time to act.
All storms produce lightning. If you can hear thunder, you can be hit by lightning and need to take precautions.
Any storm can produce flash flooding. Minimize your risk by avoiding areas that are most likely to fill with and channel swiftly moving water, such as low road crossings, storm drains, ditches, ravines, dry creek beds, or culverts. The leading causes of flood related fatalities are:
Driving through flood water
Walking in or near flood water
Find where to best seek shelter from a storm.