A Tornado Warning Symbol Clipart Image http://www.iclipart.com/search.php?keys=21576&id=198 Surfdoggie's Review: Clipart image of a tornado warning symbol. This clipart picture shows the National Weather Service symbol for a tornado watch or warning. This clipart illustration is in black against a white background. Please visit the link above to find out how you may use these images. You may need to pay for use of the images or abide by certain licensing restrictions. blowing wind, f1, f2, f3, f4, f5, f6, fujita, meteorology, n o a a, n w s, national oceanic and atmospheric administration, national weather service, noaa, nws, storm, strong wind, symbol, symbols, tornado, tornado alley, tornadoes, warning, warnings, wind, windy