Do you know what a shelf cloud is? Do you know the difference between a shelf cloud and a wall cloud? The answers to these questions and others can be found by viewing the online Spotter Show from the National Weather Service in Indianapolis. This show is targeted at trained spotters looking to refresh their knowledge, but it is simple enough to be understandable by the weather enthusiast. Are you interested in becoming a storm spotter for the National Weather Service? If so, this might be the place to start.
Take a look and let us know what you think. We recommend you view this show with a broadband/high speed internet connection since there are videos included. The show will take about 30 minutes to complete.
If you wish to bookmark this online Spotter Show, the link is: http://www.crh.noaa.gov/ind/INDSpotter/player.html
There is now another online Spotter Training course. This one is from COMET, and you can find it at their website.
Watch: Issued when conditions are favorable for a particular severe weather hazard within the next several hours.
Warning: Issued when a particular severe weather hazard is imminent or occurring. Take immediate action to protect life and property.
1. Get In:
2. Get Down:
3. Cover Up
4. Remain Calm
More details can be found within this brochure: pdf version
Tornado: A violently rotating column of air extending from a thunderstorm cloud to the ground. The Enhanced Fujita Tornado Intensity Scale is used to categorize tornadoes.
Severe Thunderstorm: A thunderstorm that produces a tornado, damaging winds of 58 mph or higher, and/or quarter (1 inch) size hail or larger.
Flash Flood: a flood which will create an immediate threat to life or property. Safety rules for flash flooding can be found with this brochure (15MB pdf)
High Wind: A High Wind Warning is issued for sustained winds of 40 mph or wind gusts of 58 mph
Thunderstorms and Lightning
Flash Floods and Floods - The Awesome Power (15MB pdf)
Winter Storms, The Deceptive Killers (large PDF)
Hurricanes and Tropical Storms