what are the five warning signs that a tornado may occur?
605603
There are several atmospheric warning signs that precipitate a tornado's arrival: A dark, often greenish, sky. Wall clouds or an approaching cloud of debris. Large hail often in the absence of rain.
773016
A tornado watch means that weather conditions are right for a tornado to form. A tornado warning means that a tornado has been sighted.
47145
['wind speed and direction.', 'temperature.', 'humidity.', 'rainfall.', 'solar radiation.']
866960
['Geophysical (e.g. Earthquakes, Landslides, Tsunamis and Volcanic Activity)', 'Hydrological (e.g. Avalanches and Floods)', 'Climatological (e.g. Extreme Temperatures, Drought and Wildfires)', 'Meteorological (e.g. Cyclones and Storms/Wave Surges)', 'Biological (e.g. Disease Epidemics and Insect/Animal Plagues)']
232141
Causes of Tornadoes. Tornadoes are cause by the thunderstorms being extremely large, unstable and with wind shear in the lower region of the atmosphere. Instability refers to the hot and humid conditions in the lower atmosphere and cooler conditions in the upper atmosphere.
211126
There are basically four elements of weather that can help describe weather. The four elements include wind, temperature, air pressure and moisture. Discuss with students each of the elements.
534705
['Prohibition Signs.', 'Mandatory Signs.', 'Warning Signs.', 'Safe Condition Signs.', 'Fire Equipment Signs.']
162738
['1.1 Avalanches and landslides.', '1.2 Earthquakes.', '1.3 Sinkholes.', '1.4 Volcanic eruptions.']
248540
Yellow Warning: Yellow warnings can be issued for a range of weather situations. ... Amber Warning: There is an increased likelihood of impacts from severe weather, which could potentially disrupt your plans.
1187974
['4.1 Severe (Red)', '4.2 High (Orange)', '4.3 Elevated (Yellow)', '4.4 Guarded (Blue) and Low (Green)', '4.5 Other terror warnings.']
1021786
You should open your windows during a tornado. Always seek out shelter in the southwest corner of any building. Well, yes, but it has to do with weather patterns and not geographic vengeance. "Tornadoes can appear from any direction," NOAA said.
989867
['Coronal hole.', 'Coronal mass ejection.', 'Geomagnetic storm.', 'Solar flare.', 'Solar particle event.', 'Solar prominence.', 'Sunspot.', 'Space Weather.']
357009
A tornado watch must not be confused with a tornado warning. In most cases, the potential exists for large hail and/or damaging winds in addition to tornadoes. A watch does not mean that the severe weather is actually occurring, only that atmospheric conditions have created a significant risk for it.
563003
Features. A tornado is a swirling vortex or column of air with a hollow core. The circulating air often contains debris and dust and moves in an upward spiral at high speeds. The bottom of the tornado column makes contact with the ground, while the top of the tornado can extend 5 or more miles into the sky.
347365
['Rope tornadoes. Rope tornadoes are some of the smallest and most common types of tornadoes, getting their name from their rope-like appearance. ... ', 'Cone tornadoes. ... ', 'Wedge tornadoes. ... ', 'Multi-vortex and satellite tornadoes.']
494807
There are five types of weather: sunny, cloudy, windy, snowy, and rainy. It is described as the sun shining and giving warmth to the land. There are little to no presence of clouds. Cold temperatures and wind, however, will also be present on some areas of the earth.
840740
['Shape - Tornadoes typically look like a narrow funnel reaching from the clouds down to the ground. ... ', 'Size - Tornadoes can vary widely in size. ... ', 'Wind Speed - The wind speed of a tornado can vary from 65 to 250 miles per hour.']